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Sel 411L Instruction Manual

Sel 411L Instruction Manual

Protection and automation system

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Instruction Manual

SEL-411L Relay

Protection Manual

Protection and

Automation System

Instruction Manual

Protection Manual

20151029

*PM411L-02-NB*

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Summary of Contents for Sel 411L

Page 1 Instruction Manual SEL-411L Relay Protection Manual Protection and Automation System Instruction Manual Protection Manual 20151029 *PM411L-02-NB*...
Page 2 © 2011–2015 by Schweitzer Engineering Laboratories, Inc. All rights reserved. All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. No SEL trademarks may be used without written permission. SEL products appearing in this document may be covered by U.S. and Foreign patents.
Page 3: Table Of Contents
Mho Phase Distance Elements ......................... P.3.186 Quadrilateral Phase Distance Elements....................P.3.191 Zone Time Delay ............................P.3.197 Instantaneous Line Overcurrent Elements....................P.3.200 Selectable Time-Overcurrent Elements (51) .................... P.3.205 Over/Undervoltage Elements ........................P.3.213 Switch-Onto-Fault Logic.......................... P.3.217 Communications-Assisted Tripping Logic....................P.3.220 Date Code 20151029 SEL-411L Relay...
Page 4 Settings and Relay Word Bits for Autoreclosing and Manual Closing ............P.4.45 Synchronism Check............................ P.4.49 Section 5: Settings Overview ..............................P.5.1 Alias Settings..............................P.5.2 Global Settings ............................. P.5.4 Protection Free-Form SEL Control Equations ..................P.5.9 OGIC Automation Free-Form SEL Control Equations................... P.5.9 OGIC Notes Settings.............................
Page 5 Overview ..............................P.12.1 Circuit Breaker Status Logic ........................P.12.2 Disconnect Logic............................P.12.2 Bay Control Front-Panel Operations ......................P.12.13 QuickSet SEL-5030 Software Bay Control Screens............P.12.27 ERATOR Predefined Bay Control One-Line Diagrams ................... P.12.37 Section 13: Time-Synchronized Measurements Relay Configuration for High-Accuracy Timekeeping ................P.13.1 Configuring High-Accuracy Timekeeping ....................
Page 6 Virtual File Interface...........................C.1.13 Communications Database .........................C.1.17 Section 2: SEL Communications Protocols Serial Port Hardware Protocol........................C.2.1 Software Protocol Selections........................C.2.2 Protocol Active When Setting PROTO := SEL ....................C.2.3 Communications......................C.2.10 SEL M IRRORED SEL Distributed Port Switch Protocol (LMD) ...................C.2.17 SEL-2600A RTD Module Operation......................C.2.18 Simple Network Time Protocol (SNTP) ....................C.2.20...
Page 7 Table of Contents IEC 61850 Operation............................C.5.3 IEC 61850 Configuration ...........................C.5.12 Logical Nodes.............................C.5.14 Protocol Implementation Conformance Statement: SEL-400 Series Devices ...........C.5.40 ACSI Conformance Statements........................C.5.46 Section 6: Synchrophasors Overview ..............................C.6.1 Introduction ..............................C.6.1 Synchrophasor Measurement ........................C.6.3 Settings for Synchrophasors .........................C.6.6 Synchrophasor Legacy Settings = N ......................C.6.19 Synchrophasor Relay Word Bits.........................C.6.23...
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Page 9: List Of Tables
87LP Settings Specific to Applications With In-Line Transformers..........P.3.90 Table 3.36 87LP Phase Differential Analog Quantities Specific To Applications With In-Line Transformers ........................P.3.92 Table 3.37 87L Relay Word Bits Related Unrestrained 87LP Operation ........... P.3.92 Date Code 20151029 SEL-411L Relay...
Page 10 OOS Logic Relay Word Bits ................... P.3.160 Table 3.89 Input/Output Combinations of the Pole-Open OOS Blocking Logic ......P.3.173 Table 3.90 Mho Ground-Distance Element Settings................. P.3.179 Table 3.91 Mho Ground-Distance Elements Relay Word Bits ............P.3.179 SEL-411L Relay Date Code 20151029...
Page 11 Virtual Terminal Over Serial Channel................P.3.264 Table 3.135 EIA-422 Clock Settings ....................P.3.265 Table 3.136 EIA-422 Configuration Settings and Cables ..............P.3.266 Table 3.137 SEL-3094 Settings......................P.3.266 Table 3.138 CCITT G.703 Cables....................... P.3.267 Table 3.139 Timing Source Settings ....................P.3.268 Table 3.140 Data Synchronization Settings ..................
Page 12 Global Enables ........................P.5.5 Table 5.6 Station DC1 Monitor (and Station DC2 Monitor) .............. P.5.5 Table 5.7 Control Inputs........................P.5.5 Table 5.8 Interface Board #1 Control Inputs..................P.5.5 Table 5.9 Interface Board #2 Control Inputs..................P.5.6 SEL-411L Relay Date Code 20151029...
Page 13 Port Settings Categories ....................P.5.18 Table 5.36 Protocol Selection ......................P.5.18 Table 5.37 Communications Settings....................P.5.19 Table 5.38 SEL Protocol Settings ....................... P.5.19 Table 5.39 Fast Message Read Data Access ..................P.5.19 Table 5.40 DNP3 Serial Protocol Settings ..................P.5.20 Table 5.41 DNP3 LAN/WAN Settings....................
Page 14 Table 11.4 Test Mode Output Supervision Under Default Settings............ P.11.4 Table 11.5 UUT Database Entries for SEL-5401 Relay Test System Software—5 A Relay ... P.11.10 Table 11.6 UUT Database Entries for SEL-5401 Relay Test System Software—1 A Relay ... P.11.10 Table 11.7...
Page 15 Control Equation Programming Summary............P.14.2 OGIC Table 14.3 Definitions for Active Setting Group Indication Relay Word Bits SG1–SG6 ....P.14.9 Table 14.4 Definitions for Active Setting Group Switching SEL Control Equation OGIC Settings SS1–SS6......................P.14.9 Table 14.5 Summary of SEL Control Equation Elements ............
Page 16 Table 15.65 EVE Command Examples....................P.15.23 Table 15.66 EXIT Command ......................P.15.24 Table 15.67 FILE Command....................... P.15.24 Table 15.68 GOOSE Command......................P.15.24 Table 15.69 Accessible GOOSE IED Information ................P.15.25 Table 15.70 GROUP Command......................P.15.26 SEL-411L Relay Date Code 20151029...
Page 17 SET O Command ......................P.15.48 Table 15.124 SET P Command ......................P.15.48 Table 15.125 SET R Command ......................P.15.49 Table 15.126 SET T Command......................P.15.49 Table 15.127 SET TERSE Command Examples .................. P.15.49 Table 15.128 SHO Command Overview....................P.15.50 Date Code 20151029 SEL-411L Relay...
Page 18 Analog Quantities List By Function................P.17.19 Table A.1 Firmware Revision History ....................P.A.2 Table A.2 Firmware Compatibility ......................P.A.7 Table A.3 Revision History ....................P.A.8 BOOT Table A.4 SEL-411L ICD File Revision History.................P.A.8 Table A.5 Manual Revision History.....................P.A.9 Table B.1 Firmware Upgrade Files......................P.B.2 SEL-411L Relay Date Code 20151029...
Page 19 SEL Communications Processor Data Collection Automessages........C.3.6 Table 3.4 Fast Message Read Message Settings .................C.3.6 Table 3.5 SEL Communications Processor Port 1 Automatic Messaging Settings ......C.3.7 Table 3.6 SEL Communications Processor Port 1 Region Map ............C.3.7 Table 3.7 SEL Communications Processor METER Region Map .............C.3.8 Table 3.8...
Page 20 Logical Device: MET (Metering)..................C.5.24 Table 5.10 Logical Device: CON (Remote Control)................C.5.29 Table 5.11 Logical Device: ANN (Annunciation) ................C.5.31 Table 5.12 SEL Nameplate Data......................C.5.40 Table 5.13 PICS for A-Profile Support ....................C.5.40 Table 5.14 PICS for T-Profile Support....................C.5.41 Table 5.15 MMS Service Supported Conformance ................C.5.41 Table 5.16...
Page 21 Table 6.25 Fast Message Command Function Codes for Synchrophasor Fast Write........C.6.38 Table 6.26 PMU Settings in the Relay for SEL Fast Message Protocol (in Global Settings) ....C.6.38 Table 6.27 SEL Fast Message Voltage and Current Selections Based on PHDATAV and PHDATAI ........................C.6.39 Table 6.28...
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Page 23: List Of Figures
Current and Voltage Inputs ....................P.2.28 Figure 2.27 Rear-Panel Symbols ......................P.2.29 Figure 2.28 Screw Terminal Connector Keying ................... P.2.30 Figure 2.29 Rear-Panel Receptacle Keying ..................P.2.31 Figure 2.30 Control Output OUT208 (INT2) ..................P.2.35 Date Code 20151029 SEL-411L Relay...
Page 24 87LG Zero-Sequence Differential Element Logic ............P.3.40 Figure 3.24 87OP Logic ........................P.3.42 Figure 3.25 87DTT Transmit Logic ..................... P.3.46 Figure 3.26 87DTT Logic........................P.3.47 Figure 3.27 Interaction Between Debounce Timing and Fail-Safe Substitution in the User-Programmable 87L Bits Logic................P.3.49 SEL-411L Relay Date Code 20151029...
Page 25 Figure 3.70 ESS := Y, Single Circuit Breaker With Current Polarizing Source Tapped Power Transformer ...................... P.3.118 Figure 3.71 SEL-411L Alpha Quantity Calculation................P.3.121 Figure 3.72 Sample TEC Command Response .................. P.3.123 Figure 3.73 Sample TEC n Command Response ................P.3.123 Figure 3.74...
Page 26 Figure 3.135 Zone 2 AB Loop Conventional Quadrilateral Phase Distance Element Logic ....P.3.196 Figure 3.136 Zone 3, 4, and 5 AB Loop Conventional Quadrilateral Phase Distance Element Logic......................P.3.197 Figure 3.137 Zone Timers ........................P.3.199 SEL-411L Relay Date Code 20151029...
Page 27 Table Y12. Summary of the Valpha and 81UVSP Calculations ........P.3.260 Figure 3.175 EIA-422 Three-Terminal, Master/Outstation Serial Application Using SEL-3094 Interface Converters..................... P.3.262 Figure 3.176 Four-Terminal Ethernet Application Using SEL ICON Multiplexers ..........P.3.262 Figure 3.177 Two Terminal Serial Application using Redundant Channels ........P.3.263 Figure 3.178 EIA-422 Typical Connection................... P.3.265 Figure 3.179...
Page 28 Synchronism-Check Voltage Reference................P.4.54 Figure 4.25 Normalized Synchronism-Check Voltage Sources VS1 and VS2........P.4.55 Figure 4.26 Healthy Voltage Window and Indication................P.4.56 Figure 4.27 Synchronism-Check Enable Logic..................P.4.56 Figure 4.28 “No Slip” System Synchronism-Check Element Output Response........P.4.58 SEL-411L Relay Date Code 20151029...
Page 29 Figure 7.28 LOCAL CONTROL Initial Menu ..................P.7.23 Figure 7.29 BREAKER CONTROL Screens ..................P.7.24 Figure 7.30 LOCAL CONTROL Example Menus................P.7.25 Figure 7.31 Local Bit Supervision Logic ..................... P.7.27 Figure 7.32 OUTPUT TESTING Screen....................P.7.28 Date Code 20151029 SEL-411L Relay...
Page 30 Demand Current Logic Outputs ..................P.9.35 Figure 9.20 Response to the MET DIF Command ................P.9.38 Figure 9.21 Response to the MET DIF Command When 87kF, 87kQ and 87kG Are Not Forced to Zero......................P.9.39 SEL-411L Relay Date Code 20151029...
Page 31 Figure 12.15 Three-Position Disconnect Control Screens ..............P.12.25 Figure 12.16 Bay Control One-Line Diagram With Three-Position Disconnect Closed In-Line ..P.12.27 Figure 12.17 Example Application....................... P.12.28 Figure 12.18 Interactive Bay Control Setting Form ................P.12.28 Date Code 20151029 SEL-411L Relay...
Page 32 Conditioning Timer With Pickup and Dropout Timing Diagram ........P.14.19 Figure 14.7 Conditioning Timer Timing Diagram for Example 14.7..........P.14.19 Figure 14.8 Sequencing Timer Timing Diagram ................P.14.21 Figure 14.9 R_TRIG Timing Diagram ....................P.14.27 Figure 14.10 F_TRIG Timing Diagram....................P.14.28 SEL-411L Relay Date Code 20151029...
Page 33 SEL Communications Processor Star Integration Network ..........C.3.1 Figure 3.2 Multitiered SEL Communications Processor Architecture..........C.3.2 Figure 3.3 Enhancing Multidrop Networks With the SEL Communications Processors.....C.3.4 Figure 3.4 Example SEL Relay and SEL Communications Processors Configuration......C.3.5 Figure 4.1 DNP3 Multidrop Network Topology ..................C.4.4 Figure 4.2...
Page 34 Example COM RTC Command Response ................C.6.37 Figure 6.17 Synchrophasor Control Application..................C.6.43 Figure 6.18 PMU Global Settings ......................C.6.44 Figure 6.19 Enabling Fast Operate Messages on Port 5 ...............C.6.44 Figure 6.20 Ethernet Port 5 Settings for Communications Using C37.118 Extended Fame....C.6.44 SEL-411L Relay Date Code 20151029...
Page 35: Preface
TnLEDA alias settings accept eight all times when applying the relay in a power system. character aliases, whereas aliases set using the SET T command only accept The SEL-411L Relay Manual consists of two volumes: seven characters. For SEL-5030 mapping purposes, ➤...
Page 36 Section 14: SEL Control Equation Programming. OGIC Describes multiple setting groups and SEL control equations and how to apply these OGIC equations; discusses expanded SEL control equation features OGIC such as PLC-style commands, math functions, counters, and conditioning timers;...
Page 37 SER, and enhanced M communications. IRRORED Section 3: SEL Communications Processor Applications. Provides examples of how to use the relay with the SEL-2032, SEL-2030, and SEL-2020 Communications Processors for total substation automation solutions. Section 4: DNP3 Communications. Describes the DNP3 communications protocol and how to apply this protocol to substation integration and automation;...
Page 38 Dans le cas contraire, un accés non- unauthorized access. SEL shall not be responsible for any damage autorisé á l’équipement peut être possible. SEL décline toute resulting from unauthorized access.
Page 39 Incorporated components, such as LEDs and transceivers are not user Les composants internes tels que les leds (diodes serviceable. Return units to SEL for repair or replacement. électroluminescentes) et émetteurs-récepteurs ne peuvent pas être entretenus par l'usager. Retourner les unités à SEL pour réparation ou remplacement. CAUTION ATTENTION Equipment components are sensitive to electrostatic discharge (ESD).
Page 40 Severe power and ground problems can occur on the communications Des problèmes graves d’alimentation et de terre peuvent survenir sur ports of this equipment as a result of using non-SEL cables. Never use les ports de communication de cet appareil si des câbles d’origine standard null-modem cables with this equipment.
Page 41 SEL trademarks and registered trademarks contain the appropri- OGIC equations ate symbol on first reference in a section. In this instruction man- ual, certain SEL trademarks appear in small caps. These include control equations, M communications, OGIC IRRORED ...
Page 42 Input S asserts output Q until input R asserts. SET RESET FLIP FLOP Output Q deasserts or resets when R asserts. FALLING EDGE B asserts at the falling edge of input A. RISING EDGE B asserts at the rising edge of input A. SEL-411L Relay Date Code 20151029...
Page 43: Section 1: Introduction And Specifications
The relay has separate protection and automation SEL control equation OGIC programming areas with extensive protection and automation programming capability. The relay provides extensive communications interfaces from standard SEL ITS ® ASCII and enhanced M communications protocols to Ethernet IRRORED connectivity with the optional Ethernet card.
Page 44: Features
The relay contains many protection, automation, and control features. Figure 1.1 presents a simplified functional overview of the relay. Relay • Password Separation of Protection and Automation ® • Expanded SEL Control OGIC Equations • Event Reports and Oscillography • Sequential Events Recorder Phase &...
Page 45 CTs for protection functions, but keep them separately available for monitoring and station integration applications. Four terminal application is available over 87L Ethernet communications only. Initial release is without Ethernet and protects as many as three terminals using serial communications. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 46 1/4 of an electrical degree. Digital Relay-to-Relay Communication. Enhanced M IRRORED communications to monitor internal element conditions between relays within a station, or between stations, using SEL fiber-optic transceivers. Send digital, analog, and virtual terminal data over the same M channel. IRRORED Ethernet Access.
Page 47: Models And Options
Thermal Overload Modeling. Use the relay with the SEL-2600A RTD Module for dynamic overload protection using SEL control OGIC equations. For more information, see SEL Application Guide AG2003-06, Implementation of the SEL-49 Relay Line Thermal Protection Using the relay SEL Equations. OGIC Bay Control.
Page 48 ➢ ® Connectorized Contact the SEL factory or your local Technical Service Center for particular part number and ordering information (see Factory Assistance on page P.11.46). You can also view the latest part number and ordering information on the SEL website at www.selinc.com.
Page 49: Table 1.1 Communications Cards Options (Excluding Eia-232 Card)
Bay Position: Bay 1 or 2 Model Option Table Digit: A G.703 87L Communication: G.703, Serial Communications Medium: copper Connector Type: DB-25 Bay Position: Bay 1 or 2 Model Option Table Digit: B Date Code 20151029 Protection Manual SEL-411L Relay...
Page 50: Applications
Terminal W, respectively. The drawings list a separate phase designator if you need only one or two phases of the analog input set (VAZ for the A-phase voltage of the VZ input set, for example). SEL-411L Relay Protection Manual Date Code 20151029...
Page 51: Figure 1.2 Two-Terminal Application With Hot Standby Channel
Figure 1.4 Two-Terminal Application With Hot Standby Channel and Tapped Load (Load Significantly Less Than Through-Current) Dedicated Fiber Bay 1 Bay 1 Relay Relay Backup Teleprotection Channel Teleprotection Teleprotection Equipment Equipment Figure 1.5 Two-Terminal Application With Voltage Inputs Date Code 20151029 Protection Manual SEL-411L Relay...
Page 52: Table 1.2 Application Highlights
Best Choice Ground Directional Element Secure protection during open-pole interval Pole-discordance logic trips three-pole for excessive single-pole-open conditions Multiple-breaker tripping SPT one; 3PT other SPT both; 3PT both Breaker failure protection SEL-411L Relay Protection Manual Date Code 20151029...
Page 53 Zone 3 latch eliminates the need for offset three-phase distance elements Time-step distance backup protection Direct Transfer control equations program the elements that key OGIC Tripping (DTT) schemes direct tripping SCADA applications Analog and digital data acquisition for station wide functions Date Code 20151029 Protection Manual SEL-411L Relay...
Page 54 Key Features Communications SEL ASCII capability Enhanced M communications IRRORED SEL Fast Meter, SEL Fast Operate, SEL Fast SER SEL Compressed ASCII Phasor Measurement Unit (PMU) protocols Optional Serial DNP3 Optional protocols: Ethernet, IEC 61850, DNP3 (Ethernet), FTP, Telnet Customized protection...
Page 55: Specifications
Note: Do not use hybrid control outputs to switch ac control signals. These outputs are polarity dependent. Vdc Input Ripple: 15% per IEC 60255-26:2013 Interruption: 14 ms @ 48 Vdc, 160 ms @ 125 Vdc per IEC 60255-26:2013 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 56 250 Vdc for 220 Vdc input. TX Pwr. (Avg dBm): –19 to –14 Control Inputs RX Sens. (dBm): –32 Optoisolated (Use With AC or DC Signals) Sys. Gain (dB): Main Board: No I/O SEL-411L Relay Protection Manual Date Code 20151029...
Page 57 100 A/m for 60 s 50 or > 1 k Input Impedance: Pulse Magnetic Field IEC 61000-4-9:2001 Dielectric Test Voltage: 0.5 kVac Immunity: 1000 A/m Damped Oscillatory IEC 61000-4-10:2001 Magnetic Field: Severity Level: 100 A/m Date Code 20151029 Protection Manual SEL-411L Relay...
Page 58 IEEE C37.118 protocol: 60 (nominal 60 Hz system) 1 minute 50 (nominal 50 Hz system) Impulse: IEC 60255-5:2000, 0.5 J, 5 kV SEL Fast Message 20 (nominal 60 Hz system) IEEE C37.90-2005 protocol: 10 (nominal 50 Hz system) Power LED Safety...
Page 59 0.8 cycle at 70% of reach and SIR = 1 OFF, 0.25 to 250 secondary, 0.01  1 A Model: Relay Version -0 steps Maximum Operating Time: 1.5 cycle at 70% of reach and SIR = 1 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 60 PT 100, NI 100, NI 120, and CU 10 RTD-Types Supported, Field Pickup Range Selectable 5 A Model: 0.25–16.00 A secondary, 0.01 A steps Up to 500 m Fiber-Optic Cable to SEL-2600 RTD Module 1 A Model: 0.05–3.20 A secondary, 0.01 A steps Breaker Failure Instantaneous Overcurrent Accuracy (Steady State)
Page 61 Magnitude: ±0.15% (33.5–200 V 0–1000 cycles, 0.125 cycle steps (BFIDOn, BFISPn) Sequence Voltage Angle: ±0.5° (33.5–200 V Communications- Frequency (Input 40–65 Hz) Assisted Tripping Schemes: 0.000–16000 cycles, 0.125 cycle steps Accuracy: ±0.01 Hz Date Code 20151029 Protection Manual SEL-411L Relay...
Page 62 ±5 Hz of nominal (50 or 60 Hz) Voltage Range: 30 V–150 V Current Range: (0.1–2) • I = 1 A or 5 A) Phase Angle Range: –179.99° to 180° Protocol: IEEE C37.118-2005 or SEL Fast Message SEL-411L Relay Protection Manual Date Code 20151029...
Page 63: Shared Configuration Attributes
This section discusses the main shared features of the relay. Relay Sizes SEL produces the relay in horizontal and vertical rack-mount versions and horizontal and vertical panel-mount versions. Relay sizes correspond to height in rack units, U, where U is approximately 1.75 inches or 44.45 mm. The relay is available in 4U, 5U, and 6U sizes.
Page 64 The Connectorized SEL-411L features receptacles that accept plug-in/plug-out connectors for terminating PT and CT inputs; this requires ordering a wiring harness (SEL-WA0421) with mating plugs and wire leads. Figure 2.26 shows the relay 6U chassis with Connectorized CT and PT analog inputs (see Connectorized for more information).
Page 65: Figure 2.1 Horizontal Front-Panel Template (A); Vertical Front-Panel Template (B)
Installation P.2.3 Shared Configuration Attributes Operator Control Labels Target Opening Label Target Label Operator Control Labels Opening Figure 2.1 Horizontal Front-Panel Template (a); Vertical Front-Panel Template (b) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 66: Figure 2.2 Rear 4U Template, Fixed Terminal Block Analog Inputs
See Section 1: Introduction and Specifications for examples of connections to the potential inputs. See Secondary Circuit Connections for information on connecting power system secondary circuits to these inputs. SEL-411L Relay Protection Manual Date Code 20151029...
Page 67: Table 2.1 Required Settings For Use With Ac Control Signals
First set Global setting EICIS := Y to gain access to the individual input pickup and dropout timer settings. These are the only setting values that SEL recommends for detecting ac control signals. Other values may result in inconsistent operation.
Page 68: Figure 2.3 Standard Control Output Connection
MOV after the output deasserts, until all of the inductive energy dissipates. Maximum dropout (break) time is 6 ms with a resistive load, the same as for the standard control outputs. The other ratings of these control outputs are SEL-411L Relay Protection Manual Date Code 20151029...
Page 69: Figure 2.4 Hybrid Control Output Connection
8 ms. The maximum voltage rating is 330 Vdc. See Control Outputs on page P.1.13, for complete high-speed, high-current interrupting control output specifications. Figure 2.5 shows a representative connection for a Form A high-speed, high-current interrupting control output on the INTE I/O interface terminals. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 70: Figure 2.5 High-Speed, High-Current Interrupting Control Output Connection, Inte
(creating a momentary short circuit that a fast, sensitive device sees as a contact closure). A third terminal (03 in Figure 2.7) provides an internal path for precharging the high-speed, high-current interrupting output circuit capacitance when the circuit is open. SEL-411L Relay Protection Manual Date Code 20151029...
Page 71: Figure 2.7 High-Speed, High-Current Interrupting Control Output Typical Terminals, Inte
IRIG time mode. There is one IRIG-B input on the relay rear panel, capable of supporting the HIRIG mode (also see Figure 2.16). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 72 P.3.261 for more information and options for connecting your relay to support line current differential communication interfaces. Other Shared All versions of the relay also feature ground, power, and battery monitor connections. See Connection for information on these relay interface features. Configuration Attributes SEL-411L Relay Protection Manual Date Code 20151029...
Page 73: Plug-In Boards
Figure 2.10 INTC I/O Interface Board (High Speed) Figure 2.11 INTD I/O Interface Board (Standard) Figure 2.12 INT7 I/O Interface Board Figure 2.13 INTE I/O Interface Board The I/O interface boards carry jumpers that identify the board location (see Jumpers). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 74: Table 2.2 I/O Interface Boards Control Inputs
For these applications, SEL provides optional INTC Two sets of 9 ground-isolated (optoisolated) contact inputs. In addition, SEL has published INTD Two sets of 9 an application advisory on this issue. Contact the factory for more INTE information.
Page 75 DANGER Step 9. Confirm screw terminal connector keying. Disconnect or de-energize all external connections before opening this SEL supplies three new screw terminal connectors with new device. Contact with hazardous I/O interface boards. voltages and currents inside this device can cause electrical shock a.
Page 76: Jumpers
D, BREAKER, PASSWORD, and A from left to right (position D is on the left). Position PASSWORD is the password disable jumper; position BREAKER is the circuit breaker control enable jumper. SEL-411L Relay Protection Manual Date Code 20151029...
Page 77: Table 2.4 Main Board Jumpers
P.2.15 Jumpers Positions D and A are for SEL use. Figure 2.14 shows the jumper header with the circuit breaker/control jumper in the ON position and the password jumper in the OFF position; these are the normal jumper positions for an in-service relay.
Page 78: Figure 2.15 Major Jumper And Connector Locations On The Main Board
ON if SCADA control of the circuit breaker via Fast Operate is required, or if screens are going to be used. LOCAL CONTROL > BREAKER CONTROL Battery PASSWORD BREAKER PORT F Figure 2.15 Major Jumper and Connector Locations on the Main Board SEL-411L Relay Protection Manual Date Code 20151029...
Page 79: Table 2.5 Serial Port Jumpers
JMP2 Jumper ‘B’ Jumper ‘A’ Port 3 Port 2 Port 3 Port 2 Rear View Figure 2.16 Main Components of the EIA-232 Board, Showing the Location of Serial Port Jumpers JMP1 and JMP2 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 80 If your facility is not jumper position descriptions). equipped to work with these components, contact SEL about returning this device and related SEL Step 7. Reinstall the relay EIA-232 board and tighten the keeper equipment for service. screws. Step 8. Reconnect any serial cables that you removed from the EIA-232 PORTS in the disassembly process.
Page 81: Figure 2.17 Major Jumper And Connector Locations On The Int2 I/O Board
Installation P.2.19 Jumpers JMP1B JMP1A JMP2B JMP2A Figure 2.17 Major Jumper and Connector Locations on the INT2 I/O Board Date Code 20151029 Protection Manual SEL-411L Relay...
Page 82: Figure 2.18 Major Jumper And Connector Locations On The Intc I/O Board
P.2.20 Installation Jumpers Figure 2.18 Major Jumper and Connector Locations on the INTC I/O Board SEL-411L Relay Protection Manual Date Code 20151029...
Page 83: Figure 2.19 Major Jumper And Connector Locations On The Inte I/O Board
Installation P.2.21 Jumpers JMP1B JMP1A JMP2B JMP2A Figure 2.19 Major Jumper and Connector Locations on the INTE I/O Board Date Code 20151029 Protection Manual SEL-411L Relay...
Page 84: Figure 2.20 Major Jumper And Connector Locations On The Int7 I/O Board
The I/O board control address has a hundreds-series prefix attached to the control inputs and control outputs for that particular I/O board chassis slot. A 4U chassis has a 200-addresses slot for inputs IN201, IN202, etc., and outputs SEL-411L Relay Protection Manual Date Code 20151029...
Page 85: Table 2.6 I/O Board Jumpers
SEL about Step 9. Locate the jumper you want to change. returning this device and related SEL equipment for service. The I/O interface board jumpers are located near the front of each I/O board, and near the interface board connector, as shown for each type of interface board in Figure 2.17–Figure 2.20.
Page 86: Relay Placement
3.5 in. or 88.9 mm in front of the relay rack rails. See Figure 2.21 for exact mounting dimensions for both the horizontal and vertical rack-mount relays. Use four screws of the appropriate size for your rack. SEL-411L Relay Protection Manual Date Code 20151029...
Page 87: Connection
When connecting the relay, refer to your company plan for wire routing and wire management. Be sure to use wire that is appropriate for your installation with an insulation rating of at least 90°C. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 88: Figure 2.22 5U Rear, Main Board With Eia-422 Serial Communications Card In Bay 1, Int2 (200 Slot) And Inte (300 Slot) Interface Boards
You can order the relay with fixed terminal blocks for the CT and PT connections, or you can order SEL Connectorized rear-panel configurations that feature plug-in/plug-out PT connectors and shorting CT connectors for relay analog inputs. Figure 2.26 shows the Connectorized 6U horizontal configuration of the SEL-411L.
Page 89: Figure 2.23 4U Rear, Main Board With 1300 Nm Ieee C37.94 Fiber-Optic Serial Communications
Figure 2.24 5U Rear, Main Board With 850 nm IEEE C37.94 Fiber-Optic Card in Bay 1, EIA-422 Serial Communications Card in Bay 2, 10/100BASE-T and 100BASE-FX in Bay 3, Standard INTD (200 Slot) and INT 7 (300 Slot) Interface Boards Date Code 20151029 Protection Manual SEL-411L Relay...
Page 90: Figure 2.25 4U Rear, Main Board With Eia-422 Serial Communications Card In Bay
In particular, the danger symbol located on the rear panel corresponds to the following: Contact with instrument terminals can cause electrical shock that can result in injury or death. Be careful to limit access to these terminals. SEL-411L Relay Protection Manual Date Code 20151029...
Page 91: Figure 2.27 Rear-Panel Symbols
Use long-nosed pliers to move the keys. Figure 2.29 shows the factory default key positions. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 92: Figure 2.28 Screw Terminal Connector Keying
The symbol that indicates the grounding terminal is shown in Figure 2.27. Use 12–10 AWG (4 mm –6 mm ) wire less than 6.6 feet (2 m) in length for this connection. This terminal connects directly to the internal chassis ground of the relay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 93: Figure 2.29 Rear-Panel Receptacle Keying
Installation P.2.31 Connection Figure 2.29 Rear-Panel Receptacle Keying Date Code 20151029 Protection Manual SEL-411L Relay...
Page 94: Table 2.7 Fuse Requirements For The Power Supply
System 1 is also connected to the rear-panel POWER input terminals.) For terminals must not exceed 600 V Battery System 2, connect the positive lead to Terminal #Z27, and the negative (rms or dc). lead to Terminal #Z28. SEL-411L Relay Protection Manual Date Code 20151029...
Page 95 The wiring harness contains four prewired connectors for the relay current and voltage inputs. You can order the wiring harness with various wire sizes and lengths. Contact your local Technical Service Center or the SEL factory for ordering information. Perform the following steps to install the wiring harness: Step 1.
Page 96 HALARMA. HALARMP does not assert again for the same alarm condition unless the condition is cleared and returns. SEL-411L relays will restart on certain diagnostic failures. When this occurs, the relay will log a Diagnostic Restart in the SER. See Appendix A: Firmware and Manual Versions for affected firmware revisions.
Page 97: Figure 2.30 Control Output Out208 (Int2)
Tripping and Closing on page P.10.24. In addition, you can use the SET O command (see SET on page P.15.45 for more details). You can also use the front panel to set and verify operation of the outputs (see Set/Show on page P.7.28). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 98 Conventional fiber-optic and telephone modems do not support IRIG-B signal transmission. Use the SEL-2810 transceiver to provide long distance delivery of the IRIG-B signal to the relay. The SEL-2810 includes a channel for the IRIG-B time code. These transceivers enable you to synchronize time precisely from IRIG-B time code generators (such as the SEL-2032 Communications Processor) over a fiber-optic communications link.
Page 99: Table 2.8 Communications Options
Communications Network Connections, Section 3: SEL Communications Processor Applications in the Communications Manual, Section 4: DNP3 Communications in the Communications Manual, and Section 5: IEC 61850 Communications in the Communications Manual.
Page 100: Figure 2.31 Card Layout (Rear View Of The Main Board)
D-subminiature 9-pin connector, use an SEL Cable C234A (see Making an EIA-232 Serial Port Connection on page P.10.5). Figure 2.32 shows the configuration of cable SEL-C234A that you can use for basic ASCII and binary communication with the relay. A properly configured...
Page 101: Table 2.9 Current Differential Communication Interface Options
1500 V rms. To maintain that isolation, and to avoid ground loops, ground all cable shields only at the communications equipment. See Section 3: Protection Functions for channel interface configuration settings, and for channel monitor settings. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 102: Figure 2.34 Typical Eia-422 Interconnection
G.703 Multiplexed G.703 codirectional Network codirectional TXDA TXDA TXDB TXDB RXDA RXDA RXDB RXDB SHLD* SHLD* Relay (Local) Relay (Remote) * Ground cable shield at the multiplexer Figure 2.35 Typical G.703 Codirectional Interconnection SEL-411L Relay Protection Manual Date Code 20151029...
Page 103: Figure 2.36 Ieee Standard C37.94 Fiber-To-Multiplexer Interface
9 micron Single-Mode Fiber Relay (Local) Relay (Remote) Figure 2.37 1300 nm Direct Fiber Connection Relay Relay ST-Connectors ST-Connectors 9 micron Single-Mode Fiber Relay (Local) Relay (Remote) Figure 2.38 1550 nm Direct Fiber Connection Date Code 20151029 Protection Manual SEL-411L Relay...
Page 104 Severe power and ground problems Several standard SEL communications cables are available for use with the can occur on the communications ports of this equipment as a result of relay.
Page 105: Figure 2.39 Four 100Base-Fx Port Configuration
WARNING Incorporated components, such as LEDs, transceivers, and laser emitters, are not user serviceable. Return units to SEL for repair or replacement. PORT 5A PORT 5B PORT 5C PORT 5D Figure 2.40 Four 10/100BASE-T Port Configuration...
Page 106: Ac/Dc Connection Diagrams
Figure 2.42 shows one particular application scheme with connections that represent typical interfaces to the relay for a single circuit breaker connection. Figure 2.43 depicts typical connections for a dual circuit breaker protection scheme. SEL-411L Relay Protection Manual Date Code 20151029...
Page 107: Figure 2.42 Typical External Ac/Dc Connections-Single Circuit Breaker
IN202 Failure Lock Out BF LO (—) Power Power I POL (—) Monitor Vdc1 Vdc1 (Station Battery) Monitor Vdc2 (—) (Trip Circuits, Vdc2 Comms) LINE Figure 2.42 Typical External AC/DC Connections—Single Circuit Breaker Date Code 20151029 Protection Manual SEL-411L Relay...
Page 108: Figure 2.43 Typical External Ac/Dc Connections-Dual Circuit Breaker
BF LO (—) BK2 CTs Power Power (—) Monitor Vdc1 Vdc1 (Station Battery) (—) Monitor Vdc2 Vdc2 (Trip Circuits, Comms) Synchronism-Check Circuit Breaker 2 BUS 2 Figure 2.43 Typical External AC/DC Connections—Dual Circuit Breaker SEL-411L Relay Protection Manual Date Code 20151029...
Page 109 Quadrilateral Phase Distance Elements on page P.3.191 ➤ Zone Time Delay on page P.3.197 ➤ Instantaneous Line Overcurrent Elements on page P.3.200 ➤ Over/Undervoltage Elements on page P.3.213 ➤ Selectable Time-Overcurrent Elements (51) on page P.3.205 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 110: 87L Theory Of Operation
OGIC ® control equations, you can include or exclude each current input dynamically from the differential zone, allowing such advanced applications as breaker substitution (breaker transfer) in double-bus single-breaker or transfer bus configurations. SEL-411L Relay Protection Manual Date Code 20151029...
Page 111 In this way, the 87L function retains a current-only scheme benefit. The function performs compensation on Date Code 20151029 Protection Manual SEL-411L Relay...
Page 112 The generalized Alpha Plane principle is similar to the two-terminal version used by the SEL-311L. However, the SEL-311L and SEL-411L are two completely independent hardware and firmware platforms. They are not compatible to be applied together in a line current differential scheme.
Page 113: Figure 3.1 Sampling And Transmitting Instantaneous Local Currents In The 87L Scheme (Breaker-And-A-Half Scheme)
87L scheme as well as variable channel latencies. At this stage, each relay uses the local frequency tracking algorithm to re- sample the aligned 1 kHz samples to a variable rate of 16 samples per cycle. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 114 Plane connected in a single-breaker arrangement (see Figure 3.3). For this case, we measure and compare a complex ratio of the two currents (k = I ) with the operating characteristic. SEL-411L Relay Protection Manual Date Code 20151029...
Page 115: Figure 3.3 Traditional Alpha Plane Operating Characteristic For 87L Zone With Two Currents
The traditional Alpha Plane expects two currents in the differential zone. ➤ Ability to perform line charging current compensation while not having to estimate the exact amount of charging current from each terminal bounding the differential zone. The Date Code 20151029 Protection Manual SEL-411L Relay...
Page 116 N-current zone. This means that the algorithm starts with three equations (real and imaginary parts of the differential signal and the level of the restraining current) to obtain the four unknowns (real and imaginary parts of the two equivalent currents). SEL-411L Relay Protection Manual Date Code 20151029...
Page 117 Alpha Plane toward the ideal blocking point of 1–180°. ➤ An external fault detection algorithm, upon detecting an external fault and in anticipation of possible CT saturation, can increase the level of restraining signal with the harmonics of Date Code 20151029 Protection Manual SEL-411L Relay...
Page 118: Figure 3.4 Ac Saturation Path Of The External Fault Detector (Simplified)
Figure 3.4 AC Saturation Path of the External Fault Detector (Simplified) Note that the algorithm needs no user settings, and the parameters of the scheme have been selected properly as factory constants. SEL-411L Relay Protection Manual Date Code 20151029...
Page 119: Figure 3.5 Sharing The Efd Bits Among Relay Terminals
EFD asserts in anticipation of possible CT saturation resulting from overfluxing because of the dc component. As with the ac saturation detection algorithm, relays share Date Code 20151029 Protection Manual SEL-411L Relay...
Page 120: Figure 3.6 Dc Saturation Path Of The External Fault Detector (Simplified)
87LG element and for three-phase balanced faults that do not produce any natural restraint for either the 87LG or 87LQ elements. In addition, the added term already receives harmonics from the differential current, magnifying the SEL-411L Relay Protection Manual Date Code 20151029...
Page 121: Figure 3.7 Illustration Of Signal Processing For Line Charging Current Compensation
87LQ and 87LG elements. Refer to 87LP Phase Differential Elements for more information about the 87L logic. Note that the EFD Relay Word bit does not block the 87L elements (you have the option of doing this blocking via SEL control equations). The relay OGIC...
Page 122 The lumped parameter model of Equation 3.13 or Equation 3.19, however, cannot represent these lines precisely. As a result, the algorithm may over- or under-compensate certain frequency components of the line charging current (see Figure 3.8, for example). The mismatch between the distributed SEL-411L Relay Protection Manual Date Code 20151029...
Page 123: Figure 3.9 The Under- Or Over-Compensated High-Frequency Components Of The Charging Current Are Taken Care Of By Boosting The Fundamental Frequency Restraining Term
With bus-side voltage transformers (VTs), the relay suspends compensation at a given terminal if the breaker opens because the bus voltage no longer represents the line voltage. Also, a loss-of-potential condition inhibits compensation. When potential Date Code 20151029 Protection Manual SEL-411L Relay...
Page 124: Figure 3.10 A Combined Transformer And Line Zone Protected With A Single Line Differential Relay
Figure 3.10 A Combined Transformer and Line Zone Protected With a Single Line Differential Relay Capable of Handling In-Line Transformers (a), With Dedicated Transformer and Line Relays (b), and With the Primary Protection SEL-411L Relay Protection Manual Date Code 20151029...
Page 125: Figure 3.11 Compensation For In-Line Transformers Is Performed At Early Stages Of Signal Processing, Allowing The Rest Of The Algorithm To Remain Unchanged
For example, a dual CT input relay can be connected to measure two different windings of an in-line transformer. Each winding can have different connections for which a different compensating matrix setting is necessary. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 126: Figure 3.12 The Relay Allows Different Transformer Windings For Each Measured Ct (A) As Well As Dual-Breaker Terminations Of The In-Line Transformer Windings (B)
This restraining action propagates through the generalized Alpha Plane operating principle, as Figure 3.13 illustrates. SEL-411L Relay Protection Manual Date Code 20151029...
Page 127: Figure 3.13 Principle Of Harmonic Restraint In The Generalized Alpha Plane Operating Characteristic
87L scheme performs. Current Data The relay allows alignment of current signal data through the use of the 87L channel (channel-based mode) or the explicit external time reference the Alignment relays receive (external-time-based mode). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 128 . The packet is marked with a sequence number to identify it at the time of use. Relay 1 uses its own local time to capture time t (refer to Figure 3.14). SEL-411L Relay Protection Manual Date Code 20151029...
Page 129: Figure 3.14 Illustration Of The Channel-Based Synchronization Method
Relay 2 returned to Relay 1 was for the message that originated at t In its packet, Relay 2 includes a time stamp for the current samples t . In DATA the relay implementation, the packet sequence number and this time stamp are the same number. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 130 (channel asymmetry) result in synchronization errors when using the channel- based synchronization method. Note that, because of raw clock offset calculation averaging, the relay is immune to temporary (transient) channel asymmetry. Only prolonged (standing) channel asymmetry would propagate SEL-411L Relay Protection Manual Date Code 20151029...
Page 131 Historically, these clocks have been GPS synchronized. In the near future, however, these clocks may be configured to use terrestrial, network-based time distribution schemes such as the SEL ICON™ system or the IEEE 1588 method. The connected clocks must report time quality via the time-quality bits embedded in the IRIG-B signal according to the C37.118 standard...
Page 132 –10 less than 1.2 • 10 per corrupted packet, eventually it will happen, and that could result in an unwanted 87L operation. A state-of-the-art protective relay cannot tolerate such an event. SEL-411L Relay Protection Manual Date Code 20151029...
Page 133: Figure 3.15 Application Of Disturbance Detection In The Relay
The remote disturbance detector (87DDR) responds to zero-, negative-, and positive-sequence components of all remote currents. If a given current is very low, such as upon the remote breaker being opened, or under weak infeed Date Code 20151029 Protection Manual SEL-411L Relay...
Page 134: Figure 3.17 Adaptive Disturbance Detector Algorithm
It is worth realizing that disturbance detection guards against multiple problems, not just undetected communications errors, and greatly increases security of the relay. Consider a simplified diagram of the relay-based 87L scheme shown in Figure 3.18. SEL-411L Relay Protection Manual Date Code 20151029...
Page 135: Figure 3.18 Disturbance Detection Guards Against Multiple Problems Greatly Increasing Security
However, the portion of the disturbance detection that responds to local currents and voltages will not assert, preventing misoperation in the first few milliseconds of the event. Subsequently, self- Date Code 20151029 Protection Manual SEL-411L Relay...
Page 136: 87L Differential Elements
Transformers if you apply the relay to a line including a power transformer connected in series. Be sure to properly configure the relay current terminals via the CTRW and CTRX current transformer ratio settings prior to selection of settings pertaining to the 87L function. SEL-411L Relay Protection Manual Date Code 20151029...
Page 137 87L function; the relay substitutes zeroes for this current input to the 87L function. Through the use of the 87CTWL and 87CTXL SEL control equations, OGIC you can switch local currents dynamically as inputs to the 87L function in such advanced applications as breaker substitution (see 87L Theory of Operation for more details).
Page 138 You can apply 1 A and 5 A nominal CTs in the same 87L scheme. The relays calculate the tap values as follows. CTBASE CTBASE Equation 3.33 87LTAPW ----------------------- - 87LTAPX ------------------------ CTRW CTRX SEL-411L Relay Protection Manual Date Code 20151029...
Page 139: Table 3.1 87L Current Input Configuration Settings
I is the nominal secondary current of the relay (5 A or 1 A). Equation 3.34 uses both W and X local terms only if you have programmed the associated 87CTWL and 87CTXL SEL control equations. The OGIC equation uses the E87CH application setting to apply the actual number of remote terminals (1, 2, or 3).
Page 140: Table 3.3 87Lp Phase Differential Elements Settings
Radius of the phase differential element in the 1.2–8 extended security mode 87LPAS Blocking angle of the phase differential ele- 90–270 ment in the extended security mode (deg) Advanced settings (EADVS = Y). SEL-411L Relay Protection Manual Date Code 20151029...
Page 141: Table 3.4 87Lp Phase Differential Elements Analog Quantities
1. All relays will calculate and display the same value of the ratio and the angle (see 87L Theory of Operation), simplifying the Alpha Plane comparator logic of Figure 3.21. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 142: Figure 3.20 Overcurrent Supervision Logic For Line Current Differential Elements (Use With Logic Diagrams In Figure 3.19, Figure 3.22, And Figure 3.23)
Such inrush may include magnetizing inrush from transformers used to tap the load. The relay provides an option to back up and coordinate with the tapped load phase protection (see Time- Overcurrent Differential Protection for more details). SEL-411L Relay Protection Manual Date Code 20151029...
Page 143 Note that the time fallback logic that responds to the loss or degradation of the time sources you use will force the Date Code 20151029 Protection Manual SEL-411L Relay...
Page 144: Table 3.5 87Lp Phase Differential Elements Relay Word Bits
Advanced settings (EADVS = Y). Table 3.7 87LQ Negative-Sequence Differential Element Analog Quantities Name Description Units 87IQFM Negative-sequence differential current (3I2) magnitude, full-cycle cosine-filtered 87KQ Alpha Plane ratio, negative-sequence – 87APQ Alpha Plane angle, negative-sequence Deg (±180°) SEL-411L Relay Protection Manual Date Code 20151029...
Page 145: Figure 3.22 87Lq Negative-Sequence Differential Element Logic
Such inrush may include a magnetizing inrush from transformers used to connect the Date Code 20151029 Protection Manual SEL-411L Relay...
Page 146 CT saturation or synchronization errors resulting from channel asymmetry. External fault detection logic in the relay allows you to be liberal in your choice of a blocking angle setting. SEL-411L Relay Protection Manual Date Code 20151029...
Page 147: Table 3.8 87Lq Negative-Sequence Differential Element Relay Word Bits
Radius of the zero-sequence differential ele- 1.2–8 ment in the extended security mode 87LGAS Blocking angle of the zero-sequence differential 90–270 element in the extended security mode (deg) Advanced settings (EADVS = Y). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 148: Table 3.10 87Lg Zero-Sequence Differential Element Analog Quantities
During external faults, the voltages change, and the line may draw more zero-sequence charging current. However, the elevated fault currents provide sufficient restraining in such SEL-411L Relay Protection Manual Date Code 20151029...
Page 149 (EADVS = Y). You should set 87LGAS less sensitive (greater than the value for 87LGA) to provide better security as necessary. The relay displays a warning message if you attempt to enter a value for this setting less than that Date Code 20151029 Protection Manual SEL-411L Relay...
Page 150: Table 3.11 87Lg Zero-Sequence Differential Element Relay Word Bits
For this application, you must set the 87L elements so that they do not respond to faults in the tapped load network. You typically accomplish this by increasing the pickup threshold or by using distance supervision for the 87L trips. SEL-411L Relay Protection Manual Date Code 20151029...
Page 151 The direct transfer tripping functionality embedded in the 87L function allows the 51S elements to send a direct trip request to the outstation relays. The E51DTT enable setting controls this operation, as the 87DTT Direct Transfer Tripping Logic explains. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 152: Table 3.12 51S Operating Quantities Related To The Differential Current
CT (or CTs) and the disconnect switch. The 87L function of the relay accepts the stub bus status the ESTUB SEL OGIC control equation provides and uses this status to ensure secure and dependable protection for the line and for bus work at the line terminal which the stub bus is in effect.
Page 153: Table 3.13 Stub Bus Settings
Use a sufficient debounce time for the digital input interfacing the 89 position against battery ground faults and other induced noise. By also using both the 89a and 89b contacts in the ESTUB SEL control equation, you can OGIC improve security against auxiliary contact failure of the line disconnect switch.
Page 154: Figure 3.25 87Dtt Transmit Logic
51Oxx = 87LG 87LAFM, or 87LBFM, Setting or 87LCFM, or 87L1FM, E51DTT = Y or 87LQFM, or 87LGFM Relay Word Bit Relay Word Bit ESTUB 51Txx xx = 01–10 Figure 3.25 87DTT Transmit Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 155: Table 3.15 87Dtt Direct Transfer Tripping Settings
Program E87DTT to 1 in three-terminal applications (E87CH = 3SS or 3SM). 3SM cases only apply in the event of a failed communications channel between two of the relays. You can dynamically inhibit 87DTT by programming the E87DTT SEL OGIC control equation if channel quality becomes problematic, such as might happen if the lost packet count or other impairments are beyond expected values.
Page 156 4 ms. Neither sending nor receiving relays add any intentional delay. When evaluating the end-to-end response time of the 87L user-programmable communications bits, you should factor in the 4 ms transmission rate, the relay processing times for Relay Word bits and SEL control equations, channel OGIC latency, and your settings for debounce time.
Page 157: Table 3.17 87L User-Programmable Communications Bits Settings (Serial Channels)
87L communications bit. In other words, if control equation 87T1P1 (Table 3.17) asserts, then the Relay Word OGIC bit 87T1P1 (Table 3.17) also asserts. The SEL control equations for the OGIC communications bits (87TnPp) are located in the Output settings. The E87PG...
Page 158 Bit 4 received on Serial Port 1 87R01P2 Bit 1 received on Serial Port 2 87R02P2 Bit 2 received on Serial Port 2 87R03P2 Bit 3 received on Serial Port 2 87R04P2 Bit 4 received on Serial Port 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 159: Table 3.19 User-Programmable Communications Bits Settings
In addition, you should provide the proper level of security against data corruption when the bit travels over the lengthy communications channel between sending and receiving relays. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 160 ➤ Use two bits to send the critical command. The probability of corrupting both bits and defeating the BCH is substantially less than corrupting a single bit and defeating the BCH data SEL-411L Relay Protection Manual Date Code 20151029...
Page 161: Figure 3.28 Providing Extra Security For Critical 87L Communications Bits Used For Unconditional Tripping (A Combination Of Delay And Disturbance Detection Supervision)
This section provides comprehensive description of the four supervisory elements to help you understand the benefits and limitations of their performance. It is also intended to facilitate in-depth testing of the 87L protection elements. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 162 87L zone and remote line currents that the local relay receives from peer relays. This current therefore reflects the through-fault conditions for external faults in the vicinity of the local relay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 163 87EXFDO. The three-cycle timer, 87EXFMD, is always in effect, and both the “AC path” and “DC path” of the detection algorithm can retrigger to secure the 87L elements even following cancellation of the long timer after detection of the previous external fault. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 164: Figure 3.30 External Fault Detection Logic-Ac Path And Reset
CT nominal and the ac current component. In addition, the two timers in Figure 3.30 maintain assertion of the external fault detected bit. SEL-411L Relay Protection Manual Date Code 20151029...
Page 165: Figure 3.31 External Fault Detection Logic-Dc Path
The relay logic overrides the 87EFD bit if the 87L function is in the test mode (87TEST asserted). This simplifies testing by removing the need to inject current signals that follow the actual patterns of external versus internal faults. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 166: Figure 3.32 External Fault Detection Logic-Communications
(controlled by the factory constant 87kPG = 0.33) to the fundamental frequency-restraining term of the 87LG element prior to executing the generalized Alpha Plane calculations. This improves security upon CT saturation, especially for three-phase balanced faults and phase-to-phase faults. SEL-411L Relay Protection Manual Date Code 20151029...
Page 167: Table 3.21 External Fault Detection Relay Word Bits
Alpha Plane 87LG Figure 3.33 External Fault Detection Logic—Usage in the 87L Elements Table 3.21 lists the external fault detection logic Relay Word bits. You can use these bits in custom SEL control equations to address security during OGIC external faults.
Page 168 87DD Relay Word bit. In stub bus mode, the 87L function uses only the local currents and disturbance supervision from the remote line terminals does not apply. Stub SEL-411L Relay Protection Manual Date Code 20151029...
Page 169: Figure 3.34 Disturbance Detection Logic Responding To Local And Remote Signals, Stub Bus, And Test Mode
(see Current and Voltage Source Selection). When the relay uses an alternate voltage source control equation, the LOP logic upon assertion of the ALTV SEL OGIC monitors the alternate voltage source you have selected through use of the ALINEV setting.
Page 170: Figure 3.35 Disturbance Detection Logic Responding To Local Current And Voltage Signals
If all necessary currents have positive-sequence magnitudes of less than 0.1 pu of SEL-411L Relay Protection Manual Date Code 20151029...
Page 171: Figure 3.36 Disturbance Detection Logic Responding To Remote Currents
Note that the input phasor, even for input signals distorted with harmonics or under off-nominal frequency, will be periodic with respect to a power cycle. The DX signal, therefore, will be very small. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 172: Table 3.22 Adaptive Threshold Limits In The Adaptive Disturbance Detection Algorithm
IQ (3I2, remote current) 0.01 pu of 87L/kTH 0.30 pu of 87L/kTH Table 3.23 lists the disturbance detector logic Relay Word bits. You can use these bits in custom SEL control equations. OGIC Table 3.23 External Fault Detection Relay Word Bits...
Page 173 See 87L Multiterminal Test on page P.11.21 and 87L Single-Terminal Test on page P.11.25 for more details on testing the 87L elements. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 174: Table 3.24 Extended Security Alpha Plane Switchover Logic Settings
E87LPS, E87LQS, and E87LGS SEL control equations. In this approach, OGIC the E87LPS, E87LQS, and E87LGS SEL control equations define OGIC exceptions from normal prevailing conditions and call for the application of more secure settings, instead of making the application less sensitive under all conditions.
Page 175: Table 3.25 Extended Security Alpha Plane Switchover Logic Relay Word Bits
This logic applies differential measurements, but it is not integrated with the differential elements. By default, the logic neither blocks nor otherwise controls the 87L elements. This is to accommodate various application philosophies related to alarming and tripping on open CT conditions. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 176 CT must be high compared with the averaged restraining signal. A percentage slope of 5 percent or 15 percent used to perform this check depends on the availability of charging current compensation. SEL-411L Relay Protection Manual Date Code 20151029...
Page 177: Table 3.26 Open Ct Logic Settings
CT trouble. Note that use of these Relay Word bits to reset the logic does not occur by default; you can use these bits in the RSTOCT SEL control equation as necessary.
Page 178: Table 3.27 Open Ct Logic Relay Word Bits
Table 3.27 shows the Relay Word bits of the Open CT logic. Table 3.27 Open CT Logic Relay Word Bits (Sheet 1 of 2) Name Description 87OCT Open-circuited CT detected, any phase 87OCTA Open-circuited CT detected, A-phase SEL-411L Relay Protection Manual Date Code 20151029...
Page 179 (Relay Word bits SPO or 3PO). In an open-pole condition, the bus voltage is not necessarily an accurate reflection of the line voltage, so line charging current compensation should not use this value. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 180 Protection Functions 87L Differential Elements ➤ The relay switches to the alternate voltage source the ALINEV setting specifies in response to the ALTV SEL control OGIC equation. The 87L line charging current compensation keeps this auxiliary feature simple by not following the voltage redundancy principle.
Page 181: Figure 3.40 Line Charging Current Compensation Control Logic
Z voltage terminal) to calculate the line charging current in the time domain for the phase currents ( = A, B, C). As 87L Theory of Operation explains, the relay calculates the numerical derivative of the voltages (i = C • dv/dt) and Date Code 20151029 Protection Manual SEL-411L Relay...
Page 182: Figure 3.41 Line Charging Current Calculations And Removal
Generalized Alpha Plane, as 87L Theory of Operation explains. SEL-411L Relay Protection Manual Date Code 20151029...
Page 183: Table 3.28 Line Charging Current Compensation Settings
87CCD Line charging current compensation degraded (compensation performed using the average of some but not all of the expected line terminal voltages) 87CCU Line charging current compensation unavailable Date Code 20151029 Protection Manual SEL-411L Relay...
Page 184 ESS (Y voltage input terminal typically). Note that the relay will suspend compensation if it switches to the alternate voltage the ALINEV setting specifies in response to the ALTV SEL control equation. If the OGIC relay has E87LCC enabled, but there is no voltage available to perform the compensation, set 87LINEV to OFF.
Page 185 PTRY = 2165, CTRW = 400, and CTRX = 320, the relay calculates charging current from the secondary voltage. Before the relay can use this current in the 87L function, however, it must first divide it by 7.5. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 186: Figure 3.43 Sample Three-Terminal Relay Application
All three relays assert the 87CCD Relay Word bit, signaling degraded compensation (the compensation uses the average of two line terminal voltages instead of all three). SEL-411L Relay Protection Manual Date Code 20151029...
Page 187 This example shows that compensation exists for the entire 87L scheme despite problems with voltage sources, so long as the scheme can access at least one valid voltage source. The scheme provides a fallback response when the last relay stops compensating. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 188 Configuration of the 87L Current Inputs. The CT ratios must be provided via the CTRW and CTRX settings, respectively. The two currents must be specified as inputs to the 87L zone of protection via the 87CTWL and 87CTXL SEL control equations. The OGIC...
Page 189: Table 3.30 87L Applications With In-Line Transformers Winding Configuration Settings
87L currents. Consider the example shown in Figure 3.44. All three relays must use 87MVA = 200 MVA in this example. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 190: Figure 3.44 Sample Three-Terminal Relay Application With In-Line Transformer
These settings specify the compensation matrix (0–12) for the currents of the W and X relay input terminals, respectively. Note that the two current input terminals of the relay may be associated with the same or different windings, SEL-411L Relay Protection Manual Date Code 20151029...
Page 191: Table 3.31 Transformer Winding Compensation Matrices
Zigzag-connected transformer winding, virtual double delta CT connection -- - 2 –1 –1 –1 2 –1 –1 0 1 Wye-connected transformer winding, virtual delta CT connection ------ - 1 –1 0 0 1 –1 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 192 (0.4811/1, 0.4811/1, 0.4811/1.2, 0.4811/1.2, 0.8367/1), with the minimum value being 0.4811/1.2 or 0.4009. A value for 87XFMRM of 0.4 should be used at Relays 1, 2 and 3 in this example. SEL-411L Relay Protection Manual Date Code 20151029...
Page 193 Table 3.32 lists settings applicable to harmonic blocking or restraining in applications with in-line transformers. Table 3.33 lists analog quantities used in the harmonic sensing logic. Table 3.34 lists Relay Word bits associated with harmonic blocking or restraining for the 87L elements. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 194: Table 3.32 87L Applications With In-Line Transformers Harmonic Blocking And Restraining Settings
Relay Word bit 87XBK2 for cross-phase blocking. The fifth harmonic level is sensed via the 87BK5 Relay Word bit intended for blocking both the 87LP and 87LQ under steady state overexcitation of the transformer core. SEL-411L Relay Protection Manual Date Code 20151029...
Page 195: Figure 3.45 Harmonic Sensing Logic
1 power system cycle. Should the block re- assert while the dropout timer is timing out, the dropout timer is stalled for extra security until the blocking 87BKT Relay Word bit in Figure 3.45 deasserts again. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 196: Figure 3.46 Magnetizing Inrush And Overexcitation Blocking Logic
(see Figure 3.48) and harmonic blocking (see Figure 3.45) for the phase differential element. The 87PCT5 setting controls the blocking level for both the 87LP and 87LQ elements under steady state overexcitation conditions. SEL-411L Relay Protection Manual Date Code 20151029...
Page 197: Table 3.34 87L Relay Word Bits Related To Harmonic Blocking And Restraining
In reference to Figure 3.47, the phase differential element, 87LP, incorporates a high-set (unrestrained) operating path, as well as a harmonic restrained Alpha Plane path (in addition to the traditional harmonic blocked Alpha Plane operating path) in applications with in-line transformers. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 198: Table 3.35 87Lp Settings Specific To Applications With In-Line Transformers
87L Theory of Operation. Table 3.35 87LP Settings Specific to Applications With In-Line Transformers Setting Description Range Default 87LPU Pickup threshold of the phase differential ele- OFF, 3.0–15 ment for the unrestrained operation (pu) SEL-411L Relay Protection Manual Date Code 20151029...
Page 199: Figure 3.47 87Lp Logic In Applications With In-Line Transformers
Analogs Overcurrent Overcurrent Alpha Plane Alpha Plane Φ Φ 87APA 87HRA Comparator Comparator Comparator Comparator (High-set) (Supervision) (Harmonic Restraint) (Harmonic Blocking) Φ Φ 87KHR Figure 3.47 87LP Logic in Applications With In-Line Transformers Date Code 20151029 Protection Manual SEL-411L Relay...
Page 200: Table 3.36 87Lp Phase Differential Analog Quantities Specific To Applications With In-Line Transformers
Typical values of this setting are in the range of several times the tap value (6–8 pu are typical). SEL-411L Relay Protection Manual Date Code 20151029...
Page 201 Should the block reassert while the dropout timer is timing out, the dropout timer is stalled for extra security until the 87QB Relay Word bit in Figure 3.45 deasserts again. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 202: Figure 3.49 87Lq Logic In Applications With In-Line Transformers
The ratio setting may be set sensitive (lower) when required because the external fault detection logic secures the function during CT saturation. SEL-411L Relay Protection Manual Date Code 20151029...
Page 203: Table 3.38 87L Applications With In-Line Transformers And Charging Current Compensation Settings
87MVA PTR 87LINEV VNOM 87LINEV 87TAPCC ---------------------------------------------------------------------------------------------------------------------------- -   3 87VTCC CTR_LOC Equation 3.38 where: PTR is the ratio of the potential transformer, VNOM is the nominal secondary voltage of the potential transformer, Date Code 20151029 Protection Manual SEL-411L Relay...
Page 204 In this case you will enter 87CCB1 = 1.7 mS • 2100/(1000/5) = 17.85 mS and the relay will apply a tap of 87TAPCC = 2.406 (see Equation 3.3). The proper vector group compensation matrix will be 87CTCCC = 1. SEL-411L Relay Protection Manual Date Code 20151029...
Page 205 Monitor if the relay repeatedly receives an 87LDTT bit without an accompanying pickup of the disturbance detector Relay Word bit 87DDL. The 87L watchdog monitor is enabled by the Group SEL setting EWDSEC. This setting is OGIC set to 1 by default to enable the monitor; however, it can be set to 0 to be disabled during testing.
Page 206: Figure 3.50 Level 1 Watchdog Monitor Diagram
(see Figure 3.186). The second counter level indicates some internal relay problem, especially if it occurs without the first level counter alarm. First contact SEL to confirm that the SEL-411L Relay Protection Manual...
Page 207: Table 3.39 87L Watchdog Relay Word Bits
Table 3.40 Current Line Differential Elements Operating Times (Cycles)—Serial Communication Multiples of Pickup Phase Negative-Sequence Zero-Sequence 1.64 1.76 1.78 1.23 1.32 1.35 0.87 1.01 1.02 0.77 0.88 0.90 0.75 0.87 0.89 0.73 0.87 0.87 0.69 0.83 0.83 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 208: Figure 3.52 Phase Elements Operating Times-Serial Communication
P.3.100 Protection Functions 87L Differential Elements Phase Elements Multiples of Pickup Figure 3.52 Phase Elements Operating Times —Serial Communication Negative-Sequence Elements Multiples of Pickup Figure 3.53 Negative-Sequence Elements Operating Times —Serial Communication SEL-411L Relay Protection Manual Date Code 20151029...
Page 209: Table 3.41 Current Line Differential Operating Times (Cycles)-Ethernet Communication
Zero-sequence 1.79 1.92 1.92 1.28 1.61 1.61 1.03 1.26 1.26 0.82 1.04 1.04 0.83 1.07 1.07 0.99 0.99 0.76 0.91 0.91 Phase Elements Multiples of Pickup Figure 3.55 Phase Elements Operating Times—Ethernet Communication Date Code 20151029 Protection Manual SEL-411L Relay...
Page 210: Ct Selection Procedure
Multiples of Pickup Figure 3.57 Zero-Sequence Elements Operating Times—Ethernet Communication CT Selection Procedure The SEL-411L uses high-speed elements within the directional, distance, and current differential elements and applies these elements universally to all zones and characteristics (including mho and quadrilateral elements). For...
Page 211: Figure 3.58 Power System Used For Ct Selection Example
Use k = 7.5 and the data for the terminal with the greatest fault current. The SEL-411L CT saturation.xls can also be used as a visualization tool for evaluation of CT performance for the differential element. See https://www.selinc.com/SEL-411L/#ct for more information.
Page 212 0.25  RLEAD: Relay Burden: 0.1 VA (1 A nominal) CT_RATED ------------------------------- 600 V NOM SEC Equation 3.54 0.1 VA RELAY 0.1  ------------------------ ----------------- - Relay   NOM SEC Equation 3.55 SEL-411L Relay Protection Manual Date Code 20151029...
Page 213 Equation 3.62 This result shows that using the C800 CT half winding tap is not suitable for ground faults in distance applications. The following simulation illustrates the level of CT saturation for this case. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 214: Current And Voltage Source Selection
(see Table 3.42). When you set ESS := Y, you can set the current and voltage sources for other applications (see Table 3.43 and Table 3.44). ESS settings examples are given later in this subsection. SEL-411L Relay Protection Manual Date Code 20151029...
Page 215: Figure 3.60 Current And Voltage Source Connections For The Relay
(bus switching details not shown). Normally, current IW (main breaker) is used as the line current source. But, if the alternate breaker substitutes for the main breaker, then current IX is used as the line current source, instead. SEL setting ALTI controls the switching between OGIC currents IW and IX as the line current source (assert setting ALTI to switch to designated alternate line current ALINEI := IX).
Page 216: Table 3.42 Available Current Source Selection Settings Combinations
(Alternate Line (Breaker 1 (Polarizing Current Breakers) Selection) Source) Current Source) Current Source) Current) Source) see Table 3.43 IAX, IBX, ICX, or NA not allowed not allowed see Table 3.44 not allowed not allowed SEL-411L Relay Protection Manual Date Code 20151029...
Page 217: Table 3.43 Available Current Source Selection Settings Combinations When Ess := Y
BK2I IPOL (Line (Number of (Source (Alternate Line (Breaker 1 (Breaker 2 (Polarizing Current Breakers) Selection) Current Source) Current Source) Current Source) Current) Source) COMB COMB COMB COMB IAX, IBX, ICX, or NA Date Code 20151029 Protection Manual SEL-411L Relay...
Page 218 DCUB (directional comparison unblocking) trip scheme logic ➤ Metering on page P.9.25, except synchrophasors Breaker current-source settings (BK1I and BK2I) identify the currents used in the following elements/features described later in this section and in other sections. SEL-411L Relay Protection Manual Date Code 20151029...
Page 219: Table 3.45 Available Voltage Source-Selection Setting Combinations
Default line voltage source VY and alternate line voltage source settings (ALINEV and ALTV) identify the voltages used in the following elements/features described later in this section and in other sections. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 220: Table 3.46 Ess := N, Current And Voltage Source Selection
With ESS := 1, the IX current channels have the option to be used as an alternate line current source (ALINEI := IX) or as a polarizing current channel (e.g., IPOL := IBX), but not both (see Table 3.42). SEL-411L Relay Protection Manual Date Code 20151029...
Page 221: Table 3.47 Ess := 1, Current And Voltage Source Selection
NUMBK Number of circuit breakers in scheme (1, 2) LINEI Line current source (IW) Automatic ALINEI Alternate line current source (IX, NA) ALTI Alternate current source (SEL equation) Hidden OGIC BK1I Breaker 1 current source (IW) Automatic BK2I Breaker 2 current source (NA)
Page 222: Table 3.49 Ess := 3, Current And Voltage Source Selection
Table 3.48 ESS := 2, Current and Voltage Source Selection Setting Description Entry Comments ALINEI Alternate line current source (IX, NA) ALTI Alternate current source (SEL equation) Hidden OGIC BK1I Breaker 1 current source (IX) Automatic BK2I Breaker 2 current source (NA)
Page 223: Table 3.50 Ess := 4, Current And Voltage Source Selection
IPOL Polarizing current (NA) Automatic ALINEV Alternate line voltage source (VZ, NA) ALTV Alternate voltage source (SEL equation) Hidden OGIC ESS := 4, Double Circuit Breaker Configuration—Common Current Inputs Set ESS to 4 for circuit breaker-and-a-half applications using combined current input IW. Figure 3.67 illustrates this application along with the corresponding current and voltage sources.
Page 224: Figure 3.68 Tapped Ehv Overhead Transmission Line
Figure 3.68 Tapped EHV Overhead Transmission Line Figure 3.69 illustrates the tapped overhead transmission line with an MOD (motor operated disconnect) on the high side of a power transformer and two circuit breakers on the low side. SEL-411L Relay Protection Manual Date Code 20151029...
Page 225: Table 3.51 Ess := Y, Tapped Line
NUMBK Number of circuit breakers in scheme (1, 2) LINEI Line current source (IW, COMB) ALINEI Alternate current source (IX, NA) ALTI Alternate current source (SEL equation) Hidden OGIC BK1I Breaker 1 current source (IW, IX, NA) BK2I Breaker 2 current source (IX, COMB, NA)
Page 226: Table 3.52 Ess := Y, Current Polarizing Source
ALTI OGIC and ALTV alternate sources. It is possible to create a toggling condition where the relay repeatedly switches between sources. Examine each line of SEL OGIC control equation programming to verify that this toggling condition does not occur in your protection/control scheme.
Page 227: Polarizing Quantity For Distance Element Calculations
This setting provides less expansion of the distance element characteristics, while still providing security for zero-voltage three- phase faults. SEL recommends that you use this setting. If your application requires more expansion of the distance element characteristics, set VMEMC = 1. When VMEMC is asserted, the relay normally uses medium length memory and automatically switches to the long memory when necessary.
Page 228: Table 3.54 Frequency Measurement And Frequency Tracking Ranges
The relay also provides an alternate frequency source selection where you can assign any of the six voltage inputs to VF11, VF12, and VF13. The relay uses VF01, VF02, and VF03 as sources if the SEL OGIC evaluation of EAFSRC is 0.
Page 229: Table 3.55 Frequency Estimation
(SEL FREQOK OGIC n = 0 or 1 FREQFZ VF11 VF12 VF13 Figure 3.71 SEL-411L Alpha Quantity Calculation NOTE: These settings are available Table 3.55 Frequency Estimation only if you have enabled Global advanced settings, EGADVS := Y. Default Label...
Page 230: Time-Error Calculation
TE. A correction feature allows the present time-error estimate (TE) to be NOTE: The LOADTE SEL control discarded, and a new value (TECORR) loaded when SEL control OGIC OGIC equation is processed once per cycle. equation LOADTE asserts. For example, if the TECORR value is set to zero,...
Page 231: Fault Location
Figure 3.72 Sample TEC Command Response Enter the TEC command with a single numeric argument n (–30.000  n  30.000) to preload the TECORR value. This operation does not affect the TE analog quantity until the SEL control equation LOADTE next asserts. OGIC Figure 3.73 shows an example of the TEC n command in use.
Page 232 Furthermore, the traveling wave arrival time (nanoseconds) is also available as DNP analog inputs (see Analog Inputs on page C.4.30). Figure 3.74 shows the traveling waves captured at either terminal. Table 3.59 describes the TW fault location settings. SEL-411L Relay Protection Manual Date Code 20151029...
Page 233: Table 3.59 Traveling Wave Fault Location Settings
TWALTI Alternate TW current source OGIC TWCOMI Combine currents for TW (Equ. CT Cable Len.) Y, N (Y/N) TWFLIF Internal fault condition for TWFL (SEL Eq.) (COMPRM OGIC OGIC OR 87OP) AND TRIP Equation 3.65 shows the fault location calculation.
Page 234: Figure 3.75 Summary Command Output Showing The Tw Fault Location Result
= the loop voltage at the relay location corresponding to the loop current = the positive-sequence impedance of the line = the loop current at the fault location SEL-411L Relay Protection Manual Date Code 20151029...
Page 235: Figure 3.76 Simplified Equivalent Network For Fault Location In Two-Terminal Lines
Note that, by the nature of Equation 3.66, only the angular position of the fault current is necessary (the magnitude is inconsequential). One successful method SEL fault location products incorporate uses the local negative- sequence current to approximate the angular position of the fault current at the fault point.
Page 236: Figure 3.77 Fault Location On Three-Terminal Lines
Equation 3.68. For example, the T1 relay runs the following fault location equation for the case of Figure 3.77.   Im V • ------------------------------------------------------- -   Im I • • Equation 3.71 SEL-411L Relay Protection Manual Date Code 20151029...
Page 237: Figure 3.78 Fault Location On Four-Terminal Lines
If this hypothesis is true, the relays report the faulted-line section and the numerical fault location, as in the case of a three-terminal line. Figure 3.78 Fault Location on Four-Terminal Lines Date Code 20151029 Protection Manual SEL-411L Relay...
Page 238: Table 3.60 Fault Location Triggering Elements
3I2L or 3I0L (k = 01–10), 87IxFM (x = A, B, C, 1, Q). Corresponding group setting 51Ok must be set to IAL, IBL, ICL, I1L, 3I2L, or IMAXL (k = 01–10), IGLFM, 87IQFM, 87IGFM. SEL-411L Relay Protection Manual Date Code 20151029...
Page 239: Table 3.61 Fault Type
AG T 49.77 REMOTE 1 In this case, the fault is on the line segment of the relay labeled Remote 1, and the fault distance is 49.77 units from the Remote 1 relay. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 240: Table 3.62 Fault Location Settings For 2-, 3-, And 4-Terminal Lines With One Tap Point
This setting is hidden if E87CH = 2SS, 2SD or 2E. In this case, Z0RTMAG := Z0MAG. This setting is hidden if E87CH = 2SS, 2SD or 2E. In this case, Z0RTANG := Z0ANG. SEL-411L Relay Protection Manual Date Code 20151029...
Page 241: Table 3.63 Fault Location Settings For 4-Terminal Line With Two Tap Points
When reset, the value contained in FLOC is set to a very large number (greater than 10 Resetting this value has no effect on the event reports stored in the relay, nor does it have an affect on DNP3 event access. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 242: Open-Phase Detection Logic
0.500 Hidden if EPO = 52. 1 V steps Setting EPO (Enable Pole Open) offers two options for deciding the conditions that signify an open pole. These options are listed in Table 3.67. SEL-411L Relay Protection Manual Date Code 20151029...
Page 243: Table 3.67 Epo Setting Selections
SPOB B-phase open SPOC C-phase open One or two poles open All three poles open — 27APO A-phase undervoltage pole open — 27BPO B-phase undervoltage pole open — 27CPO C-phase undervoltage pole open Date Code 20151029 Protection Manual SEL-411L Relay...
Page 244: Figure 3.80 Pole Open Logic Diagram
P.3.136 Protection Functions Pole Open Logic Figure 3.80 Pole Open Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 245: Loss-Of-Potential Logic
The LOP logic requires no settings other than enable setting ELOP. Setting ELOP := N If you set ELOP to N, the LOP logic operates but does not disable any voltage-polarized elements. This option is for indication only. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 246: Table 3.69 Lop Logic Setting
Figure 3.81 illustrates how the LOP logic processes an LOP decision. Figure 3.82 provides a logic diagram for the LOP logic. |V1| |I1| START decreasing? changing? ∠ I1 changing? |3I0| changing? ∠ 3I0 changing? Declare Figure 3.81 LOP Logic Process Overview SEL-411L Relay Protection Manual Date Code 20151029...
Page 247 10 percent (see point (1) above). 2. The magnitude of V is larger than 85 percent of V 3. The magnitude of |V | is not larger than 10 percent of magnitude |V Date Code 20151029 Protection Manual SEL-411L Relay...
Page 248: Figure 3.82 Lop Logic
P.3.140 Protection Functions Loss-of-Potential Logic Figure 3.82 LOP Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 249: Fault Type Identification Selection Logic
Single-phase-to-ground fault detected (total current method) FTDLG Double-line-to-ground fault detected FTSABG ABG fault (total current) FTSBCG BCG fault (total current) FTSCAG CAG fault (total current) FTSABG FTDLG FTSBCG FTSCAG Figure 3.83 Level 2 Watchdog Monitor Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 250: Ground Directional Element
Table 3.74 lists the relay settings corresponding to the ground directional element. Table 3.74 Ground Directional Element Settings (Sheet 1 of 2) Default Setting Description Range (5 A) Directional control Y, AUTO AUTO ORDER Ground directional element priority combine Q, V, I SEL-411L Relay Protection Manual Date Code 20151029...
Page 251: Table 3.75 Ground Directional Element Settings Auto Calculations
Setting Z2F is the forward threshold for the negative-sequence voltage- polarized directional element. If the relay measures the apparent negative- sequence impedance z2 less than Z2F, the relay declares the unbalanced fault to be forward. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 252 Directional element classification is as follows: ➤ Q—Negative-sequence voltage-polarized directional element (32QG) ➤ V—Zero-sequence voltage-polarized directional element (32V) ➤ I—Zero-sequence current-polarized directional element (32I) SEL-411L Relay Protection Manual Date Code 20151029...
Page 253: Table 3.76 Ground Directional Element Enables
Negative-sequence voltage-polarized directional element enable ground faults — 32VE Zero-sequence voltage-polarized directional element enable ground faults — 32IE Zero-sequence current-polarized directional element enable ground faults Figure 3.84 and Figure 3.85 correspond to Table 3.76. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 254: Figure 3.84 32Q And 32Qg Enable Logic Diagram
Enable OGIC E32IV Relay Word 32VE "V" listed in Setting Enable setting ORDER (Internal Enables) 32IE "I" listed in Setting Enable (Internal Enables) setting ORDER Figure 3.85 32V and 32I Enable Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 255: Table 3.77 Ground Directional Element Relay Word Bits
R32I Reverse current polarized zero-sequence directional element F32V Forward voltage polarized zero-sequence directional element R32V Reverse voltage polarized zero-sequence directional element F32QG Forward negative-sequence ground directional element R32QG Reverse negative-sequence ground directional element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 256: Figure 3.86 Best Choice Ground Directional Logic
3 internal enable asserted? 32QGE 32VE 32IE Figure 3.86 Best Choice Ground Directional Logic From Figure 3.64, From Figure 3.65, To Figure 3.67, To Figure 3.68, Figure 3.69 SEL-411L Relay Protection Manual Date Code 20151029...
Page 257: Figure 3.87 Negative-Sequence Voltage-Polarized Directional Element Logic
Best Choice Ground enable output Directional Enable Logic z0 Calculation Relay Word R32V — Z0RTH (Reverse) (Calculation) Relay Word 50GR Figure 3.88 Zero-Sequence Voltage-Polarized Directional Element Logic From Figure 3.84; From Figure 3.86 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 258: Figure 3.89 Zero-Sequence Current-Polarized Directional Element Logic
Zero-sequence voltage-polarized directional element forward threshold calculation Z0RTH Zero-sequence voltage-polarized directional element reverse threshold calculation Zero-sequence current-polarized directional element calculation 32IFTH Zero-sequence current-polarized directional element forward threshold calculation 32IRTH Zero-sequence current-polarized directional element reverse threshold calculation SEL-411L Relay Protection Manual Date Code 20151029...
Page 259 ------ Equation 3.78 If Z2R is less than 0: Z2RTH 1.25 • 0.25 • ------ Equation 3.79 Directional Calculation      Re 3V • • 1 Z0ANG ----------------------------------------------------------------------------- Equation 3.80 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 260: Phase- And Negative-Sequence Directional Elements
When E32 := AUTO, you do not need to enter settings for 32Q or 32P elements. However, if you set E32 (directional control) to Y, the settings you enter for 50FP, 50RP, Z2F, Z2R, and a2 affect the 32Q element (see Ground Directional Element for more details). SEL-411L Relay Protection Manual Date Code 20151029...
Page 261: Table 3.80 Phase- And Negative-Sequence Directional Elements Relay Word Bits
Relay Word Word Calculation 50QF Z2FTH F32Q 32QF — HSDQF Relay Word Bits 32QE ILOP Enable HSDQR Relay Word 32QR R32Q Calculation — Z2RTH 50QR Figure 3.92 32Q, Negative-Sequence Directional Element Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 262: Directionality
Zone 1 distance elements operate without significant delay for close-in faults. Consider using CVT transient detection logic when you have either of the following two conditions: ➤ SIR greater than or equal to five ➤ CVTs with AFSC (active ferroresonance-suppression circuits) SEL-411L Relay Protection Manual Date Code 20151029...
Page 263: Series-Compensation Line Logic
ESERCMP := Y and XC := OFF. This allows the Zone 1 element to be set to the desired sensitivity, yet still be secure during the voltage reversal that will occur when a neighboring compensated line experiences a fault. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 264: Load-Encroachment Logic
P.3.156 Protection Functions Load-Encroachment Logic For more information on setting the relay for series-compensated lines see SEL Application Guide 2000-11: Applying the SEL-321 Relay on Series- Compensated Systems. Table 3.84 Series-Compensation Line Logic Relay Settings Default Name Description Range (5 A)
Page 265: Out-Of-Step Logic (Conventional)
Figure 3.121, Figure 3.124, and Figure 3.127). 67QUBR (67Q1T for Zone 1) picks up during a power swing and a single- pole open condition does not exist (Relay Word bit SPO equals logical 0), the Date Code 20151029 Protection Manual SEL-411L Relay...
Page 266: Figure 3.96 Oos Characteristics
Setting R1L6 must be set greater than R1L7. ➤ Setting X1T6 must be set less than X1T7. ➤ Setting X1B6 must be set greater than X1B7. ➤ The minimum separation between settings R1R6 and R1R7 is 0.25/I SEL-411L Relay Protection Manual Date Code 20151029...
Page 267: Table 3.87 Oos Logic Relay Settings
Option I enables tripping on the way into Zone 6; option O enables tripping on the way out of Zone 6; option N disabled OST (Out-of-Step Trip). Advanced Setting if EADVS := Y. If the Advanced Settings are not enabled (setting EADVS := N), the relay hides the setting. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 268: Table 3.88 Oos Logic Relay Word Bits
OSB3 Block Zone 3 during out-of-step condition OSB4 Block Zone 4 during out-of-step condition OSB5 Block Zone 5 during out-of-step condition OSBA A-phase out-of-step blocking OSBB B-phase out-of-step blocking OSBC C-phase out-of-step blocking SEL-411L Relay Protection Manual Date Code 20151029...
Page 269: Figure 3.97 Oos Positive-Sequence Measurements
Zone 6 X6ABC 3φ (Internal Function) Unblock UBOSBD UBOSB Figure 3.97 OOS Positive-Sequence Measurements Relay Word 32QF Relay Word 3I2L Bits 67QUBF Setting 50QUBP Relay Word 67QUBR 32QR Figure 3.98 OOS Override Logic Date Code 20151029 Protection Manual SEL-411L Relay...
Page 270: Figure 3.99 Oos Logic Diagram
P.3.162 Protection Functions Out-of-Step Logic (Conventional) Figure 3.99 OOS Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 271: Out-Of-Step Logic (Zero Settings)
0.1 to 7 Hz range. (Download the technical paper Zero-Setting Power-Swing Blocking Protection by G. Benmouyal, Daqing Hou, and Demetrios Tziouvaras from the SEL website for more information). To use the conventional power swing blocking function, set EOOS = Y.
Page 272 Therefore, if OR Gate OR 1 does not assert, one of the timers (Timer 1–4) starts timing. If the conditions prevail, the top input of AND Gate AND 5 asserts after the appropriate timer expires. SEL-411L Relay Protection Manual Date Code 20151029...
Page 273: Figure 3.102 Swing Center Voltage Slope Detection Logic
Figure 3.101 asserts, causing OSB_I and OSB to assert. Figure 3.102 includes two checks for Z1, the positive-sequence impedance: whether Z1 is in the Starter Zone (see Figure 3.103) and whether Z1 is in Zone 7 (see Figure 3.96). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 274: Figure 3.103 Starter Zone Characteristic
(see Figure 3.104). Distance-Element-Based Fault Detection AND 1 Swing Signature Based on Values of | dSCV1 | Stored in a Memory Buffer Figure 3.104 Swing Signature Detector Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 275 AND 1 for at least two and a half cycles. If three samples in the buffer exceed 5 percent of dSCV1_unfiltMAX, and if dSCV1_unfiltMAX is greater than 0.001, the bottom leg of AND 1 asserts. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 276: Figure 3.105 Swing Signature Detector Logic
0.5 s or the OST function will be enabled and Z1 will stay outside Zone 7 for more than 30 cycles. 2. The slow derivative dSCV1_S will be smaller than 0.0026 (pu V/cyc) for more than 10 cycles under a no-fault condition. SEL-411L Relay Protection Manual Date Code 20151029...
Page 277: Figure 3.106 Reset Conditions Logic
DOSB (see Figure 3.101) signal to block the distance elements until the slope detector has had time to detect a power swing. Figure 3.107 Type of Power Swings Detected by the DOSB Function Date Code 20151029 Protection Manual SEL-411L Relay...
Page 278: Figure 3.108 Dependable Power-Swing Block Detector Logic (Eoos = Y1)
2 • d2SCV1_UF_avg + 0.06 MAB2I XAB2I MBC2I 0.25 XBC2I MCA2I XCA2I Z1MAG | Z1F — Z1F | • 8 • NFREQ k — 1 Figure 3.108 Dependable Power-Swing Block Detector Logic (EOOS = Y1) SEL-411L Relay Protection Manual Date Code 20151029...
Page 279: Figure 3.109 Dependable Power-Swing Block Detector Logic (Eoos = Y)
These properties are taken into account in the three-phase fault detector so as to implement a very fast detector, independent from the swing speed. Three- phase faults will be detected with a minimum and maximum time delay of two and five cycles, respectively. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 280: Figure 3.111 Logic Diagram Of The Three-Phase Fault Detector
In Figure 3.112, OSBA asserts if either B-phase or C-phase is open, and no fault is present. If a fault occurs on B-phase or C-phase (or both), OSBA deasserts because the angular relationship indicates a fault. SEL-411L Relay Protection Manual Date Code 20151029...
Page 281: Table 3.89 Input/Output Combinations Of The Pole-Open Oos Blocking Logic
OSB signal and clear a fault that occurs during an OOS condition, the relay must detect three-phase and phase-to-phase faults (see Figure 3.115). Phase A-to-B distance logic Phases A-B 67QUB mho signal Figure 3.115 Unblocking of the MAB Signal by the 67QUB Element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 282: Figure 3.116 Directional Element Signals 67Qubf And 67Qubr
(TOWO) out-of-step tripping, these settings do not require any stability studies. However, the out-of-step tripping on-the-way-in (TOWI) still requires stability studies to determine the proper OST settings for right and left hand blinders RR6 and RR7. SEL-411L Relay Protection Manual Date Code 20151029...
Page 283: Figure 3.117 Ost Scheme Logic Resistive And Reactive Blinders
Figure 3.117 OST Scheme Logic Resistive and Reactive Blinders Figure 3.118 shows the logic that determines whether the positive-sequence impedance (Z1) falls within the Zone 6 and/or Zone 7 polygons, provided there is no three-pole open (3PO) or loss-of-potential (ILOP) conditions. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 284: Figure 3.118 Logic That Determines Positive-Sequence Impedance Trajectory (Eoos = Y1)
Figure 3.119 shows the logic for the different EOOST settings (EOOST = N, I, O, C) when EOOS = Y1. Setting EOOST = N turns gate AND 1 off. When AND 1 turns off, all three outputs (OSTI, OST, and OSTO) are also turned off. SEL-411L Relay Protection Manual Date Code 20151029...
Page 285: Figure 3.119 Out-Of-Step Trip Logic (Eoos = Y1)
Protection Functions P.3.177 Out-of-Step Logic (Zero Settings) Figure 3.119 Out-of-Step Trip Logic (EOOS = Y1) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 286: Mho Ground-Distance Elements
If you set k0M1 to AUTO, the relay automatically calculates the values k01, k0, and k0R based on the following equation: – ------------------------ • Equation 3.88 where: = positive-sequence transmission line impedance = zero-sequence transmission line impedance SEL-411L Relay Protection Manual Date Code 20151029...
Page 287: Table 3.90 Mho Ground-Distance Element Settings
Zone 5 B-phase mho ground-distance element MCG5 Zone 5 C-phase mho ground-distance element Zone 1 ground-distance element Zone 2 ground-distance element Zone 3 ground-distance element Zone 4 ground-distance element Zone 5 ground-distance element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 288: Figure 3.121 Zone 1 Mho Ground-Distance Element Logic Diagram
Zone 1 A-Phase-to-Ground Mho Distance Calculation. A-Phase Mho Ground Distance Logic. B- and C-Phase Logic Is Similar. SPOA OSBA OSB1 67Q1T ILOP VPOLV SERCA Figure 3.121 Zone 1 Mho Ground-Distance Element Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 289: Figure 3.122 Zone 2 Mho Ground-Distance Element Logic Diagram
Mho Distance Calculation. Relay A-Phase Mho Ground Distance Logic. Word B- and C-Phase Logic Is Similar. Bits SPOA Relay Word Bits OSB2 OSBA ILOP VPOLV Figure 3.122 Zone 2 Mho Ground-Distance Element Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 290: Quadrilateral Ground-Distance Elements
You select whether the quadrilateral ground-distance elements use negative- or zero-sequence current to polarize the reactance line when the Advanced Settings are enabled (setting EADVS := Y); otherwise, negative-sequence current is the default setting. SEL-411L Relay Protection Manual Date Code 20151029...
Page 291: Table 3.92 Differences Between The Adaptive Right Resistance And The Existing
Zone 2 reactance () OFF, (0.25–320)/I Zone 2 resistance () (0.25–250)/I 18.72 Zone 3 reactance () OFF, (0.25–320)/I Zone 3 resistance () (0.25–250)/I 3.64 Zone 4 reactance () OFF, (0.25–320)/I Zone 4 resistance () (0.25–250)/I 31.20 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 292: Table 3.94 Quadrilateral Ground-Distance Elements Relay Word Bits
Zone 4 B-phase quadrilateral ground-distance element XCG4 Zone 4 C-phase quadrilateral ground-distance element XAG5 Zone 5 A-phase quadrilateral ground-distance element XBG5 Zone 5 B-phase quadrilateral ground-distance element XCG5 Zone 5 C-phase quadrilateral ground-distance element SEL-411L Relay Protection Manual Date Code 20151029...
Page 293: Figure 3.124 Zone 1 Quadrilateral Ground-Distance Element Logic Diagram
ENX2AG Bits B- and C-Phase Logic Is Similar. xAGF is the A-Phase-to-Ground Forward Reactance Calculation. ILOP rAGF is the A-Phase-to-Ground Forward Resistance Calculation. VPOLV Figure 3.125 Zone 2 Quadrilateral Distance Element Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 294: Mho Phase Distance Elements
-0 relay is 1.5 cycles. same time. To this end, the outputs from the mho and quadrilateral phase elements are ORed to a single protection output (see Figure 3.125, Figure 3.128, and Figure 3.129). SEL-411L Relay Protection Manual Date Code 20151029...
Page 295: Table 3.95 Mho Phase Distance Element Settings
Zone 4 mho phase element MAB5 Zone 5 mho A-B phase element MBC5 Zone 5 mho B-C phase element MCA5 Zone 5 mho C-A phase element Zone 5 phase distance element Zone 5 mho phase element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 296: Figure 3.127 Zone 1 Mho Phase Distance Element Logic Diagram
CVTBL Z1MP (setting) XAB1 — XBC1 mABF XCA1 Relay Word Bits SPOA SPOB OSBA OSB1 67Q1T Relay Word Bits SPOC VPOLV ILOP SERCAB Figure 3.127 Zone 1 Mho Phase Distance Element Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 297: Figure 3.128 Zone 2 Mho Phase Distance Element Logic Diagram
MBC2 MCA2 Z2MP XAB2 (setting) — XBC2 mABF XCA2 Relay Word Bits SPOA SPOB OSBA OSB2 67QUBF Relay Word Bits SPOC VPOLV ILOP Figure 3.128 Zone 2 Mho Phase Distance Element Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 298: Figure 3.129 Zones 3, 4, And 5 Mho Phase Distance Element Logic Diagram
Relay Word Bits R32P 32SPOR SPOA SPOB OSBA OSBn Relay Word Bits 67QUBF 67QUBR Relay Word Bits SPOC VPOLV ILOP Figure 3.129 Zones 3, 4, and 5 Mho Phase Distance Element Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 299: Quadrilateral Phase Distance Elements
–3.8 . Zones set to OFF (XPn = OFF), reverse looking zones (DIRn = R) and zones not included in the E21XP setting are excluded from the calculations to determine the minimum RP value in the forward direction. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 300: Figure 3.130 Quadrilateral Phase Distance Element Characteristic (Tangp = 0)
TANGP, all enabled zones are tilted by the same value. Zone 3 Zone 2 Zone 1 Z1ANG —RP Figure 3.130 Quadrilateral Phase Distance Element Characteristic (TANGP = 0) SEL-411L Relay Protection Manual Date Code 20151029...
Page 301: Figure 3.131 Quadrilateral Phase Distance Element Characteristic (Tangp = -10 Degrees)
LEFT RIGHT Figure 3.132 Network to Determine Homogeneity A network is homogeneous with respect to the particular fault location if Equation 3.89 is satisfied. LEFT RIGHT ---------------- ------------------- - LEFT RIGHT Equation 3.89 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 302: Figure 3.133 Tilt In Apparent Fault Impedance Resulting From Nonhomogeneity
(E21XP), this setting applies to both the high-speed and conventional elements. For example, E21XP = 2 makes two zones (Zone 1 and Zone 2) available for both the high-speed and conventional elements and hides the remaining zones. SEL-411L Relay Protection Manual Date Code 20151029...
Page 303: Table 3.98 Quadrilateral Phase Distance Element Settings
Zone 4 quad B-C phase element XCA4 Zone 4 quad C-A phase element XAB5 Zone 5 quad A-B phase element XBC5 Zone 5 quad B-C phase element XCA5 Zone 5 quad C-A phase element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 304: Figure 3.134 Zone 1 Ab Loop Conventional Quadrilateral Phase-Distance Element Logic
AB loop. Fault calculations for BC and CA faults have similar logics. IABLFM 0.1 • I MABDF xABF XAB2 (setting) RABX2 Phase Selection ENX2AB 32QE OSB2 67QUBF HSDAGF HSDBGF ILOP VPOLV Figure 3.135 Zone 2 AB Loop Conventional Quadrilateral Phase Distance Element Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 305: Zone Time Delay
Independent Zone Use Relay Word bits ZnPT (Time-Delayed Zone Phase Distance Protection) and ZnGT (Time-Delayed Zone Ground Distance Protection) to select Timing independent zone timing in SEL control equation TR (Trip) (n = 1–5). OGIC Date Code 20151029 Protection Manual...
Page 306: Table 3.100 Zone Delay Settings
TR := Z1P OR Z1G OR Z2PT OR Z2GT Common Zone Timing Use Relay Word bits ZnT (Zone n Distance Protection) to select common zone timing in SEL control equation TR (Trip) (n = 1–5). OGIC The next example uses common timing for Zone 2 distance protection.
Page 307: Figure 3.137 Zone Timers
Z3GT Z4GT Zone 3 Delay Timer Logic Zone 4 Delay Timer Logic Relay Suspend Timing Word Relay Bits Word Bits Z5PD Z5PT Z5GD Z5GT Zone 5 Delay Timer Logic Figure 3.137 Zone Timers Date Code 20151029 Protection Manual SEL-411L Relay...
Page 308: Instantaneous Line Overcurrent Elements
Level 4 time delay (cycles) 0.000–16000 0.000 67P1TC Level 1 torque control equation OGIC 67P2TC Level 2 torque control equation OGIC 67P3TC Level 3 torque control equation OGIC 67P4TC Level 4 torque control equation OGIC SEL-411L Relay Protection Manual Date Code 20151029...
Page 309: Table 3.103 Negative-Sequence Overcurrent Element Settings
Level 4 time delay (cycles) 0.000–16000 0.000 67G1TC Level 1 torque control equation OGIC 67G2TC Level 2 torque control equation OGIC 67G3TC Level 3 torque control equation OGIC 67G4TC Level 4 torque control equation OGIC Date Code 20151029 Protection Manual SEL-411L Relay...
Page 310: Table 3.105 Phase Instantaneous/Definite-Time Line Overcurrent Relay Word Bits
Level 4 instantaneous residual ground overcurrent element 67G1 Level 1 definite-time residual ground directional overcurrent element 67G2 Level 2 definite-time residual ground directional overcurrent element 67G3 Level 3 definite-time residual ground directional overcurrent element SEL-411L Relay Protection Manual Date Code 20151029...
Page 311: Figure 3.138 Phase Instantaneous/Definite-Time Overcurrent Elements
67P2T — 50P3P (Setting) 50P3 — — 67P3 67P3TC (SEL OGIC Setting) 67P3D — 50P4P 67P3T (Setting) 50P4 — — 67P4 67P4TC (SEL OGIC 67P4D Setting) 67P4T Figure 3.138 Phase Instantaneous/Definite-Time Overcurrent Elements Date Code 20151029 Protection Manual SEL-411L Relay...
Page 312: Figure 3.139 Residual Ground Instantaneous/Directional Overcurrent Elements
(Relay Word Bit) 50G4 — 50G4P (Setting) 67G4 67G4TC (SEL OGIC 67G4D Setting) 67G4T 32GF (Relay Word Bit) DIR4 := F (Setting) 32GR (Relay Word Bit) Figure 3.139 Residual Ground Instantaneous/Directional Overcurrent Elements SEL-411L Relay Protection Manual Date Code 20151029...
Page 313: Selectable Time-Overcurrent Elements (51)
Enable as many as ten inverse-time overcurrent elements by setting E51to as many elements as you need (1–10). After you enable these elements, the inverse-time overcurrent elements up to and including the number you entered Date Code 20151029 Protection Manual SEL-411L Relay...
Page 314: Table 3.108 U.s. Time-Overcurrent Equations
C4 (Long-Time Inverse)   ------------- - ------------- -     – –     4.85 0.05 C5 (Short-Time Inverse)   ---------------- ----------------------     0.04 – – SEL-411L Relay Protection Manual Date Code 20151029...
Page 315: Figure 3.141 U.s. Curves U1, U2, U3, And U4
.5 .6 .7 .8 .9 1 5 6 7 8 9 .5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Multiples of Pickup Figure 3.141 U.S. Curves U1, U2, U3, and U4 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 316: Figure 3.142 U.s. Curve U5 And Iec Curves C1, C2, And C3
.5 .6 .7 .8 .9 1 6 7 8 9 .5 .6 .7 .8 .9 1 6 7 8 9 Multiples of Pickup Multiples of Pickup Figure 3.142 U.S. Curve U5 and IEC Curves C1, C2, and C3 SEL-411L Relay Protection Manual Date Code 20151029...
Page 317: Figure 3.143 Iec Curves C4 And C5
51O01 := LIMAXM Therefore 51B101 := 0.05 (lower limit) And 51B201 := 3.2 (upper limit) 1 A Current Terminal: (Determined by relay part number and the operating quantity) := 0.05 and B := 3.2 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 318: Figure 3.144 Time-Overcurrent Logic
Positive-sequence instantaneous current magnitude L3I2FIM Negative-sequence instantaneous current magnitude LIGFIM Zero-sequence instantaneous current magnitude B1IGFIM Breaker 1 zero-sequence instantaneous current magnitude B2IGFIM Breaker 2 zero-sequence instantaneous current magnitude LIMAXM Filtered instantaneous maximum phase Current magnitude SEL-411L Relay Protection Manual Date Code 20151029...
Page 319: Table 3.110 Time-Overcurrent Operating Quantity List
51TD01 = 1 Upper and Lower Range Limits When you use SEL math variables, the selected analog value can exceed the upper value of the pickup range, or it can fall below the lower value of the pickup range. When this happens, the relay assigns the appropriate threshold value (upper threshold if the analog quantity exceeds the upper threshold [3.20...
Page 320: Table 3.111 Settings For The Time-Overcurrent Elements
With this setting, switch S1 closes only when IN201 is a logical 1. If the element must measure all the time, enter the following: 51TC01 := 1 To prevent the inadvertent omission of the inverse-time overcurrent protection, the relay does not permit a torque-control SEL control equation (51TCxx) OGIC setting of 0 or NA.
Page 321: Over/Undervoltage Elements
:= 1 if 59TCk evaluates to 1 Analog quantity based 0 if 59TCk evaluates to 0 59TCk on 59Ok setting (SEL OGIC 59Ok (setting) 59kP2 59PkP2 (setting) k := 1–6 Figure 3.145 Over/Undervoltage Logic Date Code 20151029 Protection Manual SEL-411L Relay...
Page 322: Table 3.112 Undervoltage Operating Quantity List
([RANGE] V, sec) The 27PkP1 (k = 1–6) undervoltage element Level 2 pickup setting is typically used for undervoltage tripping conditions. The setting is in secondary voltage. The Level 2 pickup has no definite-time delay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 323: Table 3.113 Overvoltage Operating Quantity List
(SEL Eqn.) variables) OGIC The 27TCk (k = 1–6) undervoltage element torque control uses a SEL OGIC control equation to provide torque control of the undervoltage elements. All undervoltage elements are blocked from operation when the 27TCk input evaluates to a zero. The default setting of 1 allows the undervoltage elements to always operate.
Page 324 Group Control (SEL Eqn.) OGIC The 59TCk (k = 1–6) overvoltage element torque control uses a SEL OGIC control equation to provide torque control of the overvoltage elements. All overvoltage elements are blocked from operation when the 59TCk input evaluates to a zero. The default setting of 1 allows the overvoltage elements to always operate.
Page 325: Switch-Onto-Fault Logic
Set ESOTF to Y and set CLOEND to other than OFF to enable the circuit breaker-closed SOTF logic. The CLOEND timer operates when one or three poles open (SPO or 3PO asserts). If the 3PO or SPO condition continues longer than the CLOEND time and the close bus asserts (SEL control OGIC...
Page 326: Table 3.114 Sotf Settings
Switch-onto-fault enable duration (cycles) 0.500–16000 10.000 CLSMON Close signal monitor equation OGIC This setting is hidden when EVRST = N. Table 3.115 SOTF Relay Word Bits Name Description SOTFE Switch-onto-fault trip logic enabled SEL-411L Relay Protection Manual Date Code 20151029...
Page 327: Figure 3.146 Sotf Logic Diagram
Protection Functions P.3.219 Switch-Onto-Fault Logic Figure 3.146 SOTF Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 328: Communications-Assisted Tripping Logic
DCUB1, DCUB2 Zone 1 (S) Zone 3 (S) Zone 2 (S) Zone 1 (R) Zone 3 (R) Zone 2 (R) Transmission Line Relay Relay Comm. Comm. Equip Equip Figure 3.147 Required Zone Directional Settings SEL-411L Relay Protection Manual Date Code 20151029...
Page 329: Directional Comparison Blocking Scheme
There are separate coordination timers for Zone 2 distance elements (21SD) and Level 2 residual directional overcurrent elements (67SD). NOTE: The TRCOMM SEL control The recommended setting for the 21SD timer is the sum of the following three OGIC...
Page 330 Relay Word bit BT so that unwanted tripping does not occur during momentary lapses of the blocking signal (carrier holes). This timer maintains the blocking signal at the receiving relay by delaying the dropout of Relay Word bit BT. SEL-411L Relay Protection Manual Date Code 20151029...
Page 331: Table 3.117 Dcb Settings
Protection Functions P.3.223 Directional Comparison Blocking Scheme Three-Terminal Line If you apply the DCB scheme to a three-terminal line, program SEL OGIC control equation BT as follows: BT := IN205 OR IN206 Block trip received (SEL equation) OGIC Relay inputs IN205 or IN206 assert when the relay receives a blocking signal from either of the two other terminals.
Page 332: Permissive Overreaching Transfer Tripping Scheme
The DCUB trip scheme is a better choice if the communications channel is less than perfect, but communications channel failures are unlikely to occur during external faults. SEL-411L Relay Protection Manual Date Code 20151029...
Page 333 ➤ Provides a secure means of tripping for weak- and/or zero- infeed terminals. ➤ Ensures proper tripping at both terminals during cross-country faults (via special logic implemented with SEL control OGIC equations). The POTT scheme logic consists of the following: ➤...
Page 334 The faulted phase voltage(s) is depressed at the weak-infeed terminal, a condition that generates significant residual voltage during ground faults. The relay uses phase-to-phase undervoltage level detectors and a residual SEL-411L Relay Protection Manual Date Code 20151029...
Page 335: Table 3.119 Pott Settings
EWFC is SP, the relay can convert echo to a single-pole trip at the local terminal. ECTT logic is disabled when the setting is N. Three-Terminal Lines If you apply the POTT scheme to a three-terminal line, program SEL OGIC control equation PT1 as follows:...
Page 336: Table 3.120 Pott Relay Word Bits
Echo conversion to trip (ECOMM = POTT or POTT2) 27AWI A-phase undervoltage condition 27BWI B-phase undervoltage condition 27CWI C-phase undervoltage condition Weak-infeed detected KEY1 Transmit permission to single-pole trip KEY3 Transmit permission to three-pole trip SEL-411L Relay Protection Manual Date Code 20151029...
Page 337: Figure 3.149 Permissive Trip Receiver Logic Diagram
Control Logic Input Assignments Setting ECOMM := DCUB2 Figure 3.149 Permissive Trip Receiver Logic Diagram Setting EPTDIR=Y PTDRX Control Input Assignment PTDIR To Trip Logic Figure 3.150 Directional Permissive Trip Receiver Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 338: Figure 3.151 Pott Logic Diagram
P.3.230 Protection Functions Permissive Overreaching Transfer Tripping Scheme Figure 3.151 POTT Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 339: Figure 3.152 Pott Scheme Logic (Ecomm := Pott3) With Echo And Weak Infeed
Protection Functions P.3.231 Permissive Overreaching Transfer Tripping Scheme Figure 3.152 POTT Scheme Logic (ECOMM := POTT3) With Echo and Weak Infeed Date Code 20151029 Protection Manual SEL-411L Relay...
Page 340: Directional Comparison Unblocking Scheme Logic
(i.e., communication from two remote terminals) The DCUB logic takes the loss-of-guard and permissive trip outputs from the communications receivers and makes permissive trip (PTRX1 and PTRX2) outputs and permissive trip (unblock) blocking (UBB1 and UBB2) outputs. SEL-411L Relay Protection Manual Date Code 20151029...
Page 341: Table 3.121 Dcub Settings
PTRX. Relay Word bit PTRX is the permissive trip receive input into the trip logic. Three-Terminal Lines If you apply the DCUB scheme to a three-terminal line, program SEL OGIC control equation PT1 and PT2 as follows: PT1 := IN205...
Page 342: Table 3.122 Dcub Relay Word Bits
Block permissive trip on Receiver 2 PTXR2 Permissive trip received on Channel 2 Block permissive trip received on Channel 1 or Channel 2 PTRX Permissive trip received on Channel 1 and Channel 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 343: Figure 3.154 Permissive Trip Received Logic Diagram
ECOMM := POTT3 ECOMM := DCUB1 Relay Word Bits PTRX1 PTRX2 Setting ECOMM := DCUB2 Setting ECOMM := DCUB1 Relay Word Bits UBB1 UBB2 Setting ECOMM := DCUB2 Figure 3.154 Permissive Trip Received Logic Diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 344: Figure 3.155 Dcub Logic Diagram
P.3.236 Protection Functions Directional Comparison Unblocking Scheme Logic Figure 3.155 DCUB Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 345: Trip Logic
Bus Condition for more details) and the relay detects a fault within the stub bus zone. Note that the 87OP Relay Word bit must be added to the TR, unconditional tripping, equation in order to trip for an 87L element assertion. There are separate three-pole tripping SEL control equations for two OGIC circuit breakers, E3PT1 and E3PT2, respectively.
Page 346 The TR SEL control equation determines which elements trip OGIC unconditionally. You would typically set all instantaneous and time-delayed tripping elements (step-distance protection plus instantaneous and time- overcurrent protection) in the TR SEL control equation. OGIC SEL-411L Relay Protection Manual...
Page 347: Table 3.124 Setting Tulo Unlatch Trip Options
Protection Functions P.3.239 Trip Logic DTA, DTB, and DTC The DTA, DTB, and DTC SEL control equations determine which OGIC elements directly trip the remote terminal. Each equation is phase selective. If you are applying three-pole tripping only, set DTA, DTB, and DTC to the same Relay Word bit expression.
Page 348 The relay also has additional logic for manually tripping the circuit breakers. Use SEL control equations BK1MTR and BK2MTR to trip the circuit OGIC breakers manually. Use SEL control equations ULMTR1 and ULMTR2 OGIC to unlatch manual trips for Circuit Breaker 1 and Circuit Breaker 2, respectively.
Page 349: Table 3.125 Trip Logic Settings
R_TRIG Z3G or 87LSP Make setting when ECOMM  N. Make setting when ESOTF := Y. Make setting when E87L N. Make setting when E51  N Make setting when NUMBK := 2. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 350: Figure 3.156 Trip Logic Diagram
TDURD = TDUR1D if A3PT = 0 TDURD = TDUR3D if A3PT = 1 87DTA If A3PT evolves from 0 to 1 while TDUR1D is timing reload TDUR3D * = Settings Underline = SEL Setting OGIC Φc SPT_C Figure 3.156 Trip Logic Diagram...
Page 351 Trip Logic TRPRM TDURD = TDUR1D if A3PT = 0 TDURD = TDUR3D if A3PT = 1 If A3PT evolves from 0 to 1 while TDUR1D is timing reload TDUR3D * = Settings Underline = SEL Setting OGIC A3PT TRIP ATPA...
Page 352: Table 3.126 Trip Logic Relay Word Bits
A3PT Assert three-pole trip Trip A Trip B Trip C TRIP Trip A or Trip B or Trip C Three-pole trip Single-pole rip TPA1 Breaker 1 Trip A TPB1 Breaker 1 Trip B SEL-411L Relay Protection Manual Date Code 20151029...
Page 353 ECOMM=POTT3, single-pole trip, C-phase 87DTTI Differential element distributed trip Initiated 87STAG Differential element single-pole trip, A-phase 87STBG Differential element single-pole trip, B-phase 87STCG Differential element single-pole trip, C-phase 87SPTS Differential element single-pole trip selected Date Code 20151029 Protection Manual SEL-411L Relay...
Page 354: Figure 3.158 Two Circuit Breakers Trip Logic Diagram
TDUR3D Word Bits ULMTR1 Relay Word Bits TPA1 TPB1 TPC1 OGIC Settings E3PT1 Relay E3PT2 Word Bits TPA2 TPB2 TPC2 BK2MTR TDUR3D Relay Word ULMTR2 Figure 3.158 Two Circuit Breakers Trip Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 355: Circuit Breaker Failure Protection
Scheme 1 is basic circuit breaker failure that is useful for most applications. Scheme 2 allows you to have different breaker failure times to differentiate between single-pole Date Code 20151029 Protection Manual SEL-411L Relay...
Page 356: Figure 3.161 Scheme 1 Logic Diagram
RTPU1 (retrip time delay on pickup timer) begins timing when BFI3P1 asserts. Relay Word bit RT1 (Breaker 1 retrip) asserts immediately after RTPU1 times out. Assign a control output to trip the circuit breaker when Relay Word bit RT1 asserts. SEL-411L Relay Protection Manual Date Code 20151029...
Page 357: Figure 3.162 Scheme 2 Three-Pole Circuit Breaker Failure Protection Logic
(A-phase Breaker 1 circuit breaker failure) asserts. Use FBFA1 in the circuit breaker failure tripping logic to cause a circuit breaker failure trip (see Circuit Breaker Failure Trip Logic). If the protected circuit breaker successfully Date Code 20151029 Protection Manual SEL-411L Relay...
Page 358: Figure 3.163 Scheme 2 Single-Pole Circuit Breaker Failure Protection Logic
A-phase retrip) asserts immediately after timer RTPU1 expires. You can use just the RTA1 output for single-pole retrip without current supervision. Relay Word bit RTSA1 (Breaker 1 current supervised A-phase retrip) asserts if 50FA1 is picked up. SEL-411L Relay Protection Manual Date Code 20151029...
Page 359: Figure 3.165 Current-Supervised Single-Pole Retrip Logic
Circuit Breaker 1 (i.e., NOT B1OPHA, NOT B1OPHB, or NOT B1OPHC). ➤ Relay Word bit BFIN1 (no current breaker failure initiation) is asserted. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 360 BFI3P1 and BFINn. Circuit breaker failure clearing can occur after timer NPU1 times out. For no current/residual current breaker failure trips, insert NBF1 in the circuit breaker failure trip SEL OGIC control equation BFTR1 (see Circuit Breaker Failure Trip Logic).
Page 361: Table 3.127 Circuit Breaker Failure Protection Logic Settings
Failure Trip Logic for circuit breaker failure trips from Relay Word bits FBF1, NBF1, LCBF1, and FOBF1. When this SEL control equation asserts, the relay sets Relay Word bit OGIC BFTRIP1 (breaker failure trip for circuit breaker BK1) to logical 1 until BFTR1 deasserts, timer TDUR3D times out, and an unlatch or reset condition is active.
Page 362: Table 3.128 Circuit Breaker Failure Relay Word Bits
BFIBT1 B-phase circuit breaker failure extended initiation BFICT1 C-phase circuit breaker failure extended initiation FBFA1 A-phase circuit breaker failure FBFB1 B-phase circuit breaker failure FBFC1 C-phase circuit breaker failure FBF1 Circuit breaker failure SEL-411L Relay Protection Manual Date Code 20151029...
Page 363 A-phase flashover current threshold 50FOB1 B-phase flashover current threshold 50FOC1 C-phase flashover current threshold BFTRIP1 Breaker 1 circuit breaker failure trip For Circuit Breaker 2, replace 1 with 2 in the setting label. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 364: Figure 3.167 Circuit Breaker Failure Seal-In Logic Diagram
BnOPHB ICBKn n = 1 or 2; corresponds to 50LCCn Circuit Breaker 1 or — 50LPn Circuit Breaker 2 BnOPHC SELOGIC Setting LCPUn BFILCn Figure 3.168 Failure to Interrupt Load Current Logic Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 365: Over/Underfrequency Elements
➤ The positive-sequence voltage is less than the 81UVSP setting. ➤ No frequency elements are selected (E81 = N). ➤ No primary frequency source is selected (see Figure 3.172). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 366: Undervoltage Supervision Logic
This change affects firmware for longer than a cycle. versions R310 and higher and may require a revision of the 81UVSP setting. 1.0 cyc 81UVSP 27B81 |Valpha| Figure 3.173 Undervoltage Supervision Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 367 Case 3: Single-Phase PT Input, Connected to the B- or C-Phase Input In this case, VF01 = ZERO, VF02 = VB, and VF03 = ZERO.  Valpha ----- - V Equation 3.102 Valpha 47.37 V Equation 3.103 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 368: Figure 3.174 Table Y12. Summary Of The Valpha And 81Uvsp Calculations
81DnD (Level n Time Delay) Select a time, in seconds, for which you want frequency elements to wait before asserting. Setting Prompt Range Default Category 81DnD Level n time delay (0.04–400 s) 0.04–400.00 Group n = 1–6 SEL-411L Relay Protection Manual Date Code 20151029...
Page 369: 87L Communication And Timing
A relay is an outstation if it does not communicate with all relays within the zone but does communicate with a master. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 370: Figure 3.175 Eia-422 Three-Terminal, Master/Outstation Serial Application Using Sel-3094 Interface Converters
Relay (4) Ethernet Ethernet Figure 3.176 Four-Terminal Ethernet Application Using SEL ICON Multiplexers In a two-terminal application with two available channels, these channels can be used in a redundant mode. The relay reads the remote currents from the primary channel indicated by the 87PCH setting as long as this channel is working and allows high-quality current data alignment.
Page 371: Table 3.130 Enable 87L Channel Settings
The following settings apply to serial communication applications. Use the 87PCH setting to specify the primary channel when the relay has two serial ports. Table 3.131 Primary Serial Channel Setting Setting Description Range Default 87PCH 87L primary serial channel Date Code 20151029 Protection Manual SEL-411L Relay...
Page 372: Table 3.132 Channel Out Of Service Settings
The setting in Table 3.134 enables the relay to use the 87L serial channel as a virtual terminal to remotely access a connected SEL-411L. Once this setting is enabled the PORT BAY1 or PORT BAY2 commands can be used to set up the virtual terminal (see PORT on page P.15.41).
Page 373: Table 3.135 Eia-422 Clock Settings
87TXCE1 = R if the multiplexer is set to sample transmit data on the rising edge of the transmit clock (rising edge of signal TXCB on DB-25 pin 12, falling edge of signal TXCA on DB-25 pin 15). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 374: Table 3.136 Eia-422 Configuration Settings And Cables
SHIELD* Figure 3.179 Back-to-Back EIA-422 Connection Use the SEL-3094 Interface Converter to supply the required external clock for back-to-back EIA-422 connections, as shown in Figure 3.175. Set the relay transmit and receive clock polarity to F (falling) and set the SEL-3094 as shown in Table 3.136.
Page 375: Table 3.138 Ccitt G.703 Cables
Figure 3.182 shows an example of two relays, connected back-to-back, configured for G.703 protocol. The G.703 protocol in the relay does not require the use of an external multiplexer, such as an SEL-3094, to provide a timing source for data transfer.
Page 376: Table 3.139 Timing Source Settings
For longer haul direct fiber applications using multimode or single-mode fiber, order the 1300 nm or 1500 nm fiber-optic interfaces described next. Figure 3.184 shows an example of a C37.94 back-to-back connection. SEL-411L Relay Protection Manual Date Code 20151029...
Page 377: Figure 3.184 C37.94 Back-To-Back Connection
Relay 1300 nm fiber interface system gain: 40.0 dB LEDs, transceivers, and laser emitters, are not user serviceable. Return units Minus total losses: –36.3 dB to SEL for repair or replacement. Margin: 3.7 dB Date Code 20151029 Protection Manual SEL-411L Relay...
Page 378: Table 3.140 Data Synchronization Settings
(Figure 3.184). Time-based data synchronizations uses external time sources such as GPS clocks or SEL ICON timing to determine channel delays in both the transmit and receive directions. Use this method if multiplexer switching can produce channel asymmetry. Note that the SEL ICON multiplexer channel...
Page 379: Table 3.141 Time Fallback Modes
The relay supports the physical layers shown in Table 3.142. Note that the E4 card comes standard with two ports. Table 3.142 Ethernet Interface Options Physical Layer Medium Connector 10/100BASE-T Cat 5 cable (category 5 twisted-pair) RJ45 100BASE-FX Multimode fiber-optic cable Date Code 20151029 Protection Manual SEL-411L Relay...
Page 380: Table 3.143 Ethernet Mac Address Settings
They are used to ensure that the local relay is exchanging data with the intended remote relay(s). The setting 87LTMAC specifies the address of the local relay. The settings SEL-411L Relay Protection Manual Date Code 20151029...
Page 381: Table 3.144 Ethernet Vlan Settings
SEL ICON multiplexor be used to interconnect the relays making up the zone. Each Ethernet port on the SEL ICON can be assigned to a unique Ethernet network within a SONET system. This allows each 87L zone to be connected to a dedicated LAN.
Page 382 Bandwidth = 696 bits/0.0001 seconds = 6.96 Mbps. If the application requires four relays, the total bandwidth is 6.96 • 4 = 28.84 Mbps. Although networks with lower bandwidth are possible, SEL strongly recommends that you select the 100 Mbps bandwidth for the following reasons: ➤...
Page 383 87L packet, relay logic detects this as a lost packet, causing the 87L function to be unavailable for a minimum of two cycles (see Table 3.145). SEL recommends that strict traffic congestion control engineering be applied to networks transporting 87L protection traffic. The focus for this engineering...
Page 384: Figure 3.188 Line Module Of A Single Icon For Transporting Current Differential Data Of Eight Relays To The Sonet Network
With a satellite-synchronized network clock, such as the SEL-2488, connected to the SEL ICON, the SEL ICON can distribute time to all eight SEL-411L relays at Station A. Station B...
Page 385: Figure 3.189 Isolated Redundant Network Topology With Star Configuration And A Ring Topology With Dedicated, Managed Switches Between Substations
Figure 3.190 shows a redundant ring-connected topology connected in fail- over mode. This topology also requires managed switches with rapid spanning tree protocol (RSTP) to support redundancy. The redundant connections provide you the benefit of being able to connect each SEL-411L Ethernet port to an individual switch. Station A...
Page 386: Table 3.145 Impact Of Network Performance On 87L Protection
The relay expects a new sample the 87ETHJT setting. packet within the tolerable jitter received packets every 1/16th of a power system threshold. cycle. If no data is available when expected, a failure is declared. SEL-411L Relay Protection Manual Date Code 20151029...
Page 387: Configuration, Monitoring, Alarming, And Logic For 87L Channels
Logic determining the master, outstation, and loss of 87L protection status Finally, it describes content of the 87L communications report. The report summarizes basic 87L configuration and presents both present and historical information about 87L channel function. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 388: 87L Enable And Blocking Logic
Pickup threshold of the zero- OFF, 0.1–2 0.25 sequence differential element in the normal security mode (pu) 87BLOCK Block condition for the 87L function SEL control OGIC equation PLT01 The E87CH setting configures the 87L communication scheme by specifying the number of relay terminals (2, 3, or 4), the type of communications channels (serial or Ethernet), and the master/outstation role, if applicable.
Page 389: Table 3.147 87L Blocking Relay Word Bits
Word bit), two 87L watchdog logic-asserted alarms (87ERR1 and 87ERR2 Relay Word bits (see 87L Watchdog Monitor for more details), a blocking action from the time fallback Mode 1 logic (see 87L Time Fallback Logic), and the user-programmable SEL control equation, 87BLOCK. OGIC The BLOCK bit embedded in the 87L packets distributes local block condition for the 87L function (87BLKL) to all other relays of the 87L scheme.
Page 390: 87L Active And Required Channel Logic
Single 87L port in Bay 2 Hidden and defaulted to 2 2SS or 3SS Two 87L serial ports in Bays 1 and 2 1 or 2 Hidden Hidden Ethernet card in Bay 5 Hidden Hidden SEL-411L Relay Protection Manual Date Code 20151029...
Page 391: Figure 3.195 87Chprq Logic For The 2Ss And 3Sm 87L Configurations
Word bit deasserted) and Channel 1 is required if the switchover logic calls for switching to the standby channel (87HSB asserted). Neither of the two channels is required in the stub bus condition, or under certain testing conditions as explained previously. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 392: 87L Channel Synchronization Logic And Status
Synchronization accuracy helps control sensitivity of the 87L function and supervises the multi-ended fault location algorithm. SEL-411L Relay Protection Manual Date Code 20151029...
Page 393 Alpha Plane settings if the quality of synchronization is coarse. It switches to regular settings only after it obtains high precision clock offset measurements (see 87L Differential Elements). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 394: Table 3.150 Clock Offset Calculation Quality Relay Word Bits
IRIG-B connection is not re-established. When the IRIG-B signal is locked, the relay uses the IRIG signal to calibrate the internal time-keeping subsystem, so drift after loss of the IRIG-B signal is limited to SEL-411L Relay Protection Manual Date Code 20151029...
Page 395: Table 3.151 87L Absolute Time Quality Relay Word Bit
87L data synchronization method for the C, T synchronization, the GPS clock must be C37.118 compliant, and the 87L Channel 1 SEL-411L global setting IRIGC must be 87CH2SN 87L data synchronization method for the C, T set to C37.118. 87L Channel 2 The data synchronization method setting is available only in applications over serial channels.
Page 396 Protection Functions 87L Channel Synchronization Logic and Status concern if you use a terrestrial system, such as the SEL ICON, as a time source. In any case, using the channel-based mode, if the channel symmetry allows, yields a better protection scheme by relying on less equipment and associated engineering.
Page 397: Figure 3.197 Synchronization Method Logic (P-Th Channel)
Figure 3.198. In addition to monitoring synchronization quality for each channel individually, the relay monitors the synchronization quality for the 87L scheme (see Figure 3.199). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 398: Table 3.153 Channel Synchronization Method Relay Word Bits
Channel-based synchronization in effect for the 87L Channel 2 (serial channels only) 87CH1TS External time-based synchronization in effect for the 87L Channel 1 87CH2TS External time-based synchronization in effect for the 87L Channel 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 399: 87L Channel Monitoring And Alarming Logic
Maximum step change in the round-trip OFF, 3–50 channel delay threshold for the 87L Channel 1 (ms) 87CH2MD Maximum step change in the round-trip OFF, 3–50 channel delay threshold for the 87L Channel 2 (ms) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 400: Figure 3.200 Maximum Round-Trip Delay Alarm Logic
As Figure 3.201 shows, the relay defines the step change in the round-trip delay as the difference between the round-trip delay just prior and just after a channel interruption. This takes advantage of the fact that the communications SEL-411L Relay Protection Manual Date Code 20151029...
Page 401: Figure 3.201 Step Change In Round-Trip Delay Logic
Apply the 87CHpMD setting on a per-channel basis to monitor step change in the round-trip delay. The 87CHpDT Relay Word bit signals an alarm. This bit stays asserted for 0.1 s. If necessary, use a SEL timer to extend bit OGIC assertion.
Page 402: Figure 3.202 Channel Asymmetry Alarm Logic
15-minute count and subtracts the oldest 15-minute count from the total 24-hour number of lost packets. Each 15-minute period begins every UTC quarter hour. As Figure 3.203 shows, an alarming threshold is available for the lost packet count. SEL-411L Relay Protection Manual Date Code 20151029...
Page 403: Figure 3.203 Lost Packet Alarm Logic
0.1 s Figure 3.205 Momentary Channel Break Alarm Logic Overall Channel You can use the variety of available Relay Word bits to program custom channel status logic with SEL control equations. The relay provides for a OGIC Status default overall channel status indication.
Page 404: Table 3.155 87L Channel Alarm Relay Word Bits
Momentary channel break alarm asserted for the 87L Channel 1 87CH2BR Momentary channel break alarm asserted for the 87L Channel 2 87CH3BR Momentary channel break alarm asserted for the 87L Channel 3 (Ethernet only) 87CH1OK 87L Channel 1 is receiving valid data SEL-411L Relay Protection Manual Date Code 20151029...
Page 405: 87L Standby Channel Switchover Logic
As a result, the relay applies proper security to the 87L function for a brief period following the switchover. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 406: Table 3.157 Hot Standby Logic Settings
87L function dependability if the other channel does not use external time sources for data synchronization. control equation ECH1OUT to Additionally, the relay provides SEL OGIC force switchover with such user-defined conditions as excessive channel latency or noise. You can use the channel-alarming Relay Word bits (see 87L Channel Monitoring and Alarming Logic) to design the custom condition ECH1OUT for marking Channel 1 as problematic.
Page 407: Table 3.158 Hot Channel Standby Logic Relay Word Bits
Figure 3.209) or the 87PCH setting. Table 3.158 Hot Channel Standby Logic Relay Word Bits Name Description 87HSB Standby channel in use ECH1OUT 87L Channel 1 forced out of service ECH2OUT 87L Channel 2 forced out of service Date Code 20151029 Protection Manual SEL-411L Relay...
Page 408: 87L Time Fallback Logic
87L function entirely, depending on the application and the status of the other channels. This mode provides no benefits in the 2SS applications, but it may maintain dependability in 2SD and 3SM applications if only one channel operates in the external time-based synchronization mode. SEL-411L Relay Protection Manual Date Code 20151029...
Page 409: Table 3.161 Merits Of Time Fallback Modes Depending On The E87Ch Application Setting
The 87CHpRQ Relay Word bit marks the channel as required. ➤ The 87CHpOK Relay Word bit signals proper operation of the channel. ➤ The channel is set in the time-based synchronization mode (87CHpSN = T). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 410: Figure 3.210 Request For Time Fallback From The P-Th 87L Channel
(see 87L Channel Synchronization Logic and Status for more details on the 87TOK logic). Setting Relay 87TFB = 1 Word Bit To the 87L blocking logic 87CHpFB All active channels Figure 3.211 Time Fallback Mode 1 Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 411: Figure 3.212 Time Fallback Mode 2 Logic
Effects are similar to those in fallback Mode 2. As Figure 3.213 shows, the fallback logic makes a one-shot decision at the moment the channel calls for fallback. The following occur at that time. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 412 Note that if any required channel is forced to use the channel-based synchronization method (87CHpFC asserted), the 87L function switches to more secure Alpha Plane settings via the 87SYNL bit, as 87L Differential Elements explains. SEL-411L Relay Protection Manual Date Code 20151029...
Page 413: Table 3.162 Time Fallback Mode Relay Word Bits
87L Channel 1 is forced to use the channel-based synchronization mode by the time fallback logic 87CH2FC 87L Channel 2 is forced to use the channel-based synchronization mode by the time fallback logic Date Code 20151029 Protection Manual SEL-411L Relay...
Page 414: 87L Master, Outstation, And Loss Of Protection Logic
87DTT is configured via the E87DTT setting at the receiving outstation relay). Relay Word bits flag the previously listed states; you can use default relay logic and SEL control equations to control other relay functions. The OGIC following three Relay Word bits describe the state of the 87L function.
Page 415: Figure 3.214 87L Master (87Mtr) Logic
(as the 87BLK Relay Word bit signals), even if the 87L function is a master. ➤ Either 87DTT is disabled in the relay while it is in outstation mode, or none of the relays connected on the active channels is a master. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 416: 87L Communications Report
(p = 1, 2, 3). The report displays data items related to all active channels (those for which the 87CHpAC Relay Word bit is asserted). SEL-411L Relay Protection Manual Date Code 20151029...
Page 417 0 - 2 (ii) (ii) 2 - 4 (ii) (ii) 4 - 6 (ii) (ii) 6 - 8 (ii) (ii) 8 - 10 (ii) (ii) 10 - 12 (ii) (ii) 12 - 15 (ii) (ii) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 418: Table 3.164 Com87L Report Data Items
87LTMAC, 87LMAC1, 87LMAC2, and 87LMAC3 settings displayed; port presently used by addresses for applications the 87L is indicated (A or B); displayed only for applications over Ethernet (based on the over Ethernet E87CH setting). SEL-411L Relay Protection Manual Date Code 20151029...
Page 419 87TFB setting. Status: (87CHpFB & 87CHpRQ) ORed for all active channels (87CHpAC asserted) is used. Dis- IN FALLBACK played Channel status 87CHpAL Relay Word bits used. If 87CHpAL = 1, displayed ALARM , otherwise Date Code 20151029 Protection Manual SEL-411L Relay...
Page 420 87CHpRT value used (round-trip channel delay [ms]). Suppressed if !87CHpOK. Only for round-trip delay applications over serial channels (based on the E87CH setting). (bb) Channel measurement— 87CHpTXT (transmit channel delay [ms]) used. Suppressed if !87CHpOK or delay in the transmit direc- !(87TOK&ETLp). tion SEL-411L Relay Protection Manual Date Code 20151029...
Page 421: 87L Channel Recorder
These channel recording perspective, but they may create application and event analysis challenges files are primarily intended for internal SEL use. related to the communications system. These systems often use devices (such as relays, T1 multiplexers, and SONET backbones) from different manufacturers.
Page 422 The default setting for the 87L channel recorder trigger, 87CHTRG, is set to 87LSP (see 87L Watchdog Monitor for more details). You can add other triggers, but SEL recommends that you do not remove the 87LSP Relay Word bit from the trigger equation. The 87LSP Relay Word bit is specifically...
Page 423: Protection Application Examples
Two-Terminal 500 kV Line Differential Example ➤ Three-Terminal 345 kV Line Differential Example Two-Terminal 500 kV Figure 3.218 shows a two-ended overhead 500 kV line with SEL-411L Relays at each end. This example explains how to select settings for each relay. Line Differential Example...
Page 424: Table 3.166 System Data-500 Kv Overhead Transmission Line And Ct/Pt Ratios
1.929 / mile 76.4° primary B1L (pos. seq. susceptance) 0.009 mS / mile primary B0L (zero seq. susceptance) 0.005 mS / mile primary Source S impedance 50  88° primary Z1S = Z0S SEL-411L Relay Protection Manual Date Code 20151029...
Page 425: Table 3.167 Secondary Values
Choose appropriate names for the Station and Relay ID. We would have the following at Terminal S: SID := Station S Station Identifier (40 characters) RID := Relay S Relay Identifier (40 characters) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 426 Set the relay to indicate that both circuit breakers are single-pole trip type. BK1TYP := 1 Breaker 1 Trip Type (Single-Pole = 1, Three-Pole = 3) The SEL-411L uses normally open auxiliary contacts from the circuit breakers to determine whether each pole is open or closed.
Page 427 Time Fall Back Mode 1. In the case of Channel 1 failure and absence of required time sources for Channel 2, the 87L function is effectively inhibited for all relays of the differential system. 87TFB := 1 Time Fall Back Mode (1–4) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 428: Figure 3.219 Channel Report During Commissioning Testing
87CH2MA := 4 Max. Allowable Asym. for Ch 2 (OFF, 0.2–10 ms) Configure the 87L recorder to trigger for a channel alarm or a differential operation. 87CHTRG := 87OP 87L Recording Trigger (SEL control equation) OGIC Many records will not be of interest, so disable write protect.
Page 429 Z0MAG := 6.71 Zero-Seq. Line Impedance Mag. (0.05–255 , sec) Z0ANG := 5.00 Zero-Seq. Line Impedance Angle (5.00–90°) Relay Configuration Enable the 87L elements. We would have the following at both terminals: E87L := Y Enable 87L Function (Y, N) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 430 E51 := N Enable Inverse-Time Overcurrent Elements (N, 1–10) E81 := N Enable Frequency Elements (N, 1–6) E27 := N Enable Under Voltage Elements (N, 1–6) E59 := N Enable Over Voltage Elements (N, 1–6) SEL-411L Relay Protection Manual Date Code 20151029...
Page 431 = max (Remote CT Primary, Local CT Primary) = max BASE (1600, 2000) = 2000 Equation 3.110 We would have the following at Terminal S: 2000 BASE ---------------------------- - ----------- - 6.25 LOCAL Equation 3.111 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 432 ------------------------------------- - burden    • Equation 3.115 where, is the total loop impedance of the CT secondary circuit for the burden particular fault type. is the saturation voltage of the CT. SEL-411L Relay Protection Manual Date Code 20151029...
Page 433 For a fault in the middle of the line with R from Table 3.166 to Equation 3.116–Equation 3.118. = 2631 A We then divide by the base current, as in the following: 2631 A ----------------- - 2000 A Equation 3.120 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 434 87LPAS := 234 Block Angle 87LP Element, Sec. Mode (90–270°) 87LQPS := 0.3 Pickup 87LQ Element (OFF, 0.1–2 pu) 87LQRS := 7.2 Radius 87LQ Element (1.2–8) 87LQAS := 234 Block Angle 87LP Element (90–270°) SEL-411L Relay Protection Manual Date Code 20151029...
Page 435 87LGPS := 0.3 Pickup 87LG Element, Sec. Mode (0.1–2 pu) 87LGRS := 7.2 Radius 87LG Element, Sec. Mode (1.2–8) 87LGAS := 234 Block Angle 87LG Element, Sec. Mode (90–270°) ESTUB := NOT IN208 Enable Stub Bus Protection (SEL control OGIC equation) Mho Phase Distance Element Reach.
Page 436 UBOSBF := 4 Out-of-Step Angle Unblock Rate (1–10) 50Q1P := 1.0 Level Pickup (OFF, 0.25–0100 A sec.) 67Q1D := 0.5 Level 1 Time Delay (0.000–16000 cycles) 67Q1TC := 1 Level 1 Torque Control (SEL control equation) OGIC We would have the following at Relay S: OSBD := 3.1 Out-of-Step Block Time Delay (0.500–8000 cycles)
Page 437 CLOEND := OFF CLSMON or 1 Pole Open Delay (OFF, 0.000–16000 cycles) SOTFD := 10 Switch-Onto-Fault Enable Duration (0.500–16000 cycles) CLSMON := NA Close Signal Monitor (SEL control equation) OGIC The Zone 2 distance element or the instantaneous overcurrent element will initiate an SOTF trip.
Page 438 OGIC Single-Pole Trip Options Program the SEL-411L to single-pole trip for Zone 2 ground distance operations. Z2GTSP := Y Zone 2 Ground Distance Time Delay SPT (Y, N) This application does not use communications-assisted tripping, so do not allow single-pole tripping from overcurrent elements.
Page 439 OUT206 := TPC2 AND NOT PLT04 OUT207 := 87TOUT OUT208 := NOT (SALARM OR HALARM) OR PLT04 Three-Terminal 345 Figure 3.220 shows a three-ended overhead 345 kV line with SEL-411L protection at each terminal. kV Line Differential Example Date Code 20151029...
Page 440: Table 3.168 System Data-345 Kv Overhead Transmission Line
Table 3.168 System Data—345 kV Overhead Transmission Line (Sheet 1 of 2) Parameter Value Nominal system line-to-line voltage 345 kV Nominal frequency 60 Hz Line length 200 miles 20 miles 10 miles SEL-411L Relay Protection Manual Date Code 20151029...
Page 441: Table 3.169 Secondary Impedances
➤ Line current differential protection with line-charging current compensation ➤ Master/outstation operation ➤ Overcurrent backup protection Relay settings that this example does not mention do not apply to this application example. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 442 We would have the following at all relays: BK1TYP := 3 Breaker 1 Trip Type (Single-Pole = 1, Three-Pole = 3) The SEL-411L uses normally open auxiliary contacts from the circuit breakers to determine whether each pole is open or closed.
Page 443 E50P := 1 Phase Inst./Def.-Time O/C Elements (N, 1–4) E51S:= 1 Selectable Inverse Time O/C Element (N, 1–3) E32:= AUTO Directional Control (Y, AUTO) EBFL1 := 1 Breaker 1 Failure Logic (N, 1,2) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 444 We would have the following at Relay T: E50G := 1 Res. Ground Inst./Def.-Time O/C Elements (N, 1–4) 87 Current Differential Protection We would have the following at all relays: 87CTWL := 1 Terminal W included in 87L Element (SEL control OGIC equation) 87CTPWL := P CT Polarity of Terminal W (P = Pos., N = Neg.)
Page 445: Figure 3.221 Ct Saturation Plot
87LQAS := 234 Block Angle 87LP Element (90–270°) 87LGPS := 0.3 Pickup 87LG Element, Sec. Mode (0.1–2 pu) 87LGRS := 7.2 Radius 87LG Element, Sec. Mode (1.2–8) 87LGAS := 234 Block Angle 87LG Element, Sec. Mode (90–270°) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 446 P.3.338 Protection Functions Protection Application Examples Stub bus protection is not necessary for this application. ESTUB := 0 Enable Stub Bus Protection (SEL control equation) OGIC 87 In-Line Transformer. We would have the following at all relays: 87MVA:= 200 Transformer Max Power Capacity (1–5000 MVA) The transformer connection is YDAB.
Page 447: Figure 3.222 Various Overcurrent Elements Used In This Example
We would have the following at Relay S: Pickup: 1/2 • (V • CTRS]) = 1/2 • (199.19 kV / [24  • 200]) = 20.7 A 50P1P := 20.7 Level 1 Pickup (OFF, 0.25–100 A, sec) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 448 67P1D := 0.000 Level 1 Time Delay (0.000–16000 cycles) Fault levels resulting from close-in external faults are less than the pickup values we have chosen, so these elements do not need to be directional. 67P1TC := 1 Level 1 Torque Control (SEL control equation) OGIC Enable a 50G element at Terminal T to provide sensitive ground fault protection for the delta winding.
Page 449 TR := 87OP OR 50P1 OR 51T01 (SEL control equation) OGIC We would have the following at Relay T: TR := 87OP OR 50P1 OR 50G1 OR 51T01 (SEL control OGIC equation) Use the default setting to assert ULTR when you push the front-panel target reset.
Page 450 BK1MTR := OC1 OR PB8_PUL Breaker 1 Manual Trip—BK1 (SEL control equation) OGIC ULMTR1 := NOT (52AA1 AND 52AB1 AND 52AC1) Unlatch Manual Trip -BK1 (SEL control equation) OGIC Control Outputs Use SEL control equations to assign control outputs for tripping. Use the OGIC 200 Board control outputs for tripping.
Page 451 Delay [ms] Ch. 1 [%] Ch. 2 [%] 98.2 95.1 8-10 10-12 12-15 15-20 20-30 Channel asymmetry Asymm [ms] Ch. 1 [%] Ch. 2 [%] 0.00-0.25 98.2 99.5 0.25-0.50 0.50-0.75 0.75-1.00 1.00-1.50 1.50-2.00 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 452 87CH1MA := 1 Max. Allowable Asym. for Ch 2 (OFF, 0.2–10 ms) Configure the 87L recorder to trigger for a channel alarm or a differential operation. 87CHTRG := 87OP 87L Recording Trigger (SEL control equation) OGIC Many records will not be of interest, so disable write protect.
Page 453 Example Completed This completes the application example describing configuration of the SEL-411L for current differential protection with overcurrent backup of a 345 kV three-terminal transmission line with an in-line transformer. You can use this example as a guide when setting the relay for similar applications.
Page 454 This page intentionally left blank...
Page 455 This is useful on both ring bus and breaker-and-a-half schemes, where the follower breaker is a tie breaker that can be tripped by protection on either side. For single circuit breaker applications, use setting E79 := Y. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 456: Section 4: Autoreclosing And Synchronism-Check Autoreclosing
3PMRCD (manual close reclaim time delay) timer has expired. You can only block the reclaim time after a successful reclose cycle. Setting 79BRCT (block reclaim timer) prevents timing of reclaim timers SPRCD and 3PRCD. SEL-411L Relay Protection Manual Date Code 20151029...
Page 457 The dashed vertical line that runs through the center of the figure indicates the states common to both circuit breakers. Table 4.1 describes each of the five states with respect to Circuit Breaker 1, along with the corresponding Relay Word bits. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 458: One-Circuit-Breaker Autoreclosing
3PRI (see Figure 4.9). Other recloser settings include the initial recloser settings (see Enable Autoreclose Logic for Two Circuit Breakers) and the trip logic enable settings E3PT, E3PT1, and E3PT2. When SEL control equations E3PT, E3PT1, OGIC SEL-411L Relay...
Page 459 Autoreclosing and Synchronism-Check P.4.5 One-Circuit-Breaker Autoreclosing and E3PT2 are deasserted, a single-pole reclose follows a single-pole trip; when these SEL control equations are asserted, only three-pole tripping OGIC and reclosing result (see Trip Logic and Reclose Sources). Single-Pole Mode Figure 4.10 shows the one circuit breaker single-pole autoreclose cycle 79CY1.
Page 460 Relay Word bit 79DTL asserts. Three-Pole Mode Figure 4.11 shows the one circuit breaker autoreclose cycle 79CY3. The cycle starts when Relay Word bit 3PARC asserts. The recloser checks SEL OGIC control equation 79SKP at this point to determine whether to increment the shot counter.
Page 461 (79CY1 or 79CY3). NBK0 equals logical 1 when Circuit Breaker 1 is open and not in an autoreclose cycle (79CY1 or 79CY3), or if the autoreclose logic is locked out (BK1LO). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 462: Table 4.2 One-Circuit-Breaker Three-Pole Reclose Initial Settings
General Global Settings (Global) NUMBK Number of Breakers in Scheme Breaker Configuration (Breaker Monitor) BK1TYP Breaker 1 Trip Type Breaker 1 Inputs (Breaker Monitor) 52AA1 A-phase N/O Contact Input—BK1 (SEL Equation) OGIC 52AB1 B-phase N/O Contact Input—BK1 (SEL Equation) 52AA1 OGIC 52AC1 C-phase N/O Contact Input—BK1 (SEL...
Page 463 BK1TYP := 3, (Breaker 1 Trip Type) ➤ NSPSHOT := N, (Number of Single-Pole Reclosures) External Recloser If reclosing is performed by an external relay, assert SEL control OGIC equations E3PT and E3PT1 via a control input (for example): E3PT := NOT IN204...
Page 464: Two-Circuit-Breaker Autoreclosing
3PRI (see Figure 4.9). Other recloser settings include the initial recloser settings (see Enable Autoreclose Logic for One Circuit Breaker) and the trip logic enable settings E3PT, E3PT1, and E3PT2. When SEL control equations E3PT, E3PT1, OGIC and E3PT2 are deasserted, a single-pole reclose follows a single-pole trip;...
Page 465 SPLSHT is not asserted, and the three-pole reclose conditions are not satisfied (E3PRn is logical 0, for example) and the recloser exits the 79CY1 cycle state and goes to the lockout state BKnLO. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 466 79DTL setting includes the conditioning timer output. The time delay should be long enough to allow normal breaker operation to occur, while preventing the autoreclose logic from stalling while waiting indefinitely for 3POLINE to assert. If SEL control equation 3PFARC (Three-Pole Fast OGIC ARC Enable) is asserted, the recloser times the open interval time from setting 3PFOID (Three-Pole Fast Open Interval Delay).
Page 467 79CY3 cycle. The recloser then recalculates and freezes the number of active circuit breakers, the leader, and the follower. The recloser then increments the shot counter and begins the next open interval timer. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 468 One circuit breaker is the leader and the other is the follower for circuit breaker-and-a-half and ring-bus arrangements. Figure 4.2 illustrates a multiple Circuit Breakers circuit breaker arrangement. The leader recloses first. If the leader recloses successfully, the follower also typically recloses. SEL-411L Relay Protection Manual Date Code 20151029...
Page 469: Figure 4.2 Multiple Circuit Breaker Arrangement
Leader Logic Relay settings SLBK1 (Leader Breaker = Breaker 1) and SLBK2 (Leader Breaker = Breaker 2) SEL control equations determine the criteria for OGIC relay selection of the active leader.
Page 470: Table 4.5 Dynamic Leader/Follower Settings
FOLBK1, Follower Breaker = Breaker 1 ➤ FOLBK2, Follower Breaker = Breaker 2 If there is no follower (in the case of only one circuit breaker, for example), the relay loads a logical 0 into the follower SEL control equation OGIC FBKCEN.
Page 471 Set the FBKCEN control equation to prevent Circuit Breaker BK2 from closing as the OGIC follower. The leader and follower selection settings are shown in Table 4.6. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 472: Table 4.6 Leader/Follower Selection
No Active Breakers in Reclose Scheme NBK1 One Breaker Active in Reclose Scheme NBK2 Two Active Breakers in Reclose Scheme LEADBK0 No Leader Breaker LEADBK1 Leader Breaker = Breaker 1 LEADBK2 Leader Breaker = Breaker 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 473: Table 4.9 Example One: Reset State After Reclaim Time
Example Two: BK2 as Successful Follower and Dynamic Leader Another example is similar to the first with SLBK1/SLBK2/FBKCEN at 1/0/1 (see Table 4.10). Table 4.10 Leader/Follower Selection Setting Label Value SLBK1 SLBK2 FBKCEN Date Code 20151029 Protection Manual SEL-411L Relay...
Page 474: Table 4.11 Example Two: Initial Reset State
Two Active Breakers in Reclose Scheme LEADBK0 No Leader Breaker LEADBK1 Leader Breaker = Breaker 1 LEADBK2 Leader Breaker = Breaker 2 FOLBK0 No Follower Breaker FOLBK1 Follower Breaker = Breaker 1 FOLBK2 Follower Breaker = Breaker 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 475: Table 4.13 Leader/Follower Selection
Leader Breaker = Breaker 2 FOLBK0 No Follower Breaker FOLBK1 Follower Breaker = Breaker 1 FOLBK2 Follower Breaker = Breaker 2 BK2 closes as the follower when BK1 successfully closes (after timer TBBKD). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 476: Table 4.16 Example Three: Lockout State, Bk1
Table 4.18 defines the logical state of the autoreclose logic for this example prior to the initiation of an autoreclose cycle. These conditions are frozen during an autoreclose cycle. The autoreclose logic can unfreeze these conditions if the relay receives another initiation. SEL-411L Relay Protection Manual Date Code 20151029...
Page 477: Table 4.18 Two Circuit Breakers: Circuit Breaker Bk1 Out Of Service
Number of Breakers in Scheme Breaker Configuration (Breaker Monitor) BK1TYP Breaker 1 Trip Type BK2TYP Breaker 2 Trip Type Breaker 1 Inputs (Breaker Monitor) 52AA1 N/O Contact Input—BK1 (SEL Equation) IN201 OGIC Breaker 2 Inputs (Breaker Monitor) 52AA2 N/O Contact Input—BK2 (SEL Equation)
Page 478: Table 4.20 Two-Circuit-Breaker Single-Pole Reclose Initial Settings
Number of Breakers in Scheme Breaker Configuration (Breaker Monitor) BK1TYP Breaker 1 Trip Type BK2TYP Breaker 2 Trip Type Breaker 1 Inputs (Breaker Monitor) 52AA1 A-phase N/O Contact Input—BK1 (SEL Equation) IN201 OGIC 52AB1 B-phase N/O Contact Input—BK1 (SEL Equation) IN202...
Page 479: Table 4.22 Circuit Breaker Bk2 Modes Of Operation
EXAMPLE 4.1 Conditional Three-Pole Tripping for Circuit Breaker Your system reclosing requirement is that Circuit Breaker BK2 always three-pole trips, unless Circuit Breaker BK2 is the leader. (This occurs when Circuit Breaker BK1 is out of service.) Program SEL control OGIC equation ESPR2 as follows: ESPR2 := LEADBK2 AND BK1LO Single-Pole Reclose Enable—BK2 (SEL...
Page 480: Table 4.23 Trip Logic Enable Options
BK1TYP and BK2TYP equal 3 (Circuit Breaker 1 and Circuit Breaker 2 Trip Type) ➤ NSPSHOT := N (Number of Single-Pole Reclosures) External Recloser If reclosing is performed by an external relay, assert SEL control OGIC equations E3PT, E3PT1, and E3PT2 via control inputs (for example): E3PT := IN204...
Page 481: Autoreclose Logic Diagrams
Figure 4.6 Line-Open Logic Diagram When E79 := Y Relay Relay Word Bits Word Bits NBK2 3POBK1 3POBK2 3POLINE NBK1 LEADBK1 3POBK1 LEADBK2 3POBK2 Figure 4.7 Line-Open Logic Diagram When E79 := Y1 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 482: Figure 4.8 Single-Pole Reclose Enable
BK2EXT R3PTE1 ESPR1 79CY3 R3PTE BK1LO SPARC NUMBK := 2 BK2LO ESPR2 R3PTE2 Figure 4.8 Single-Pole Reclose Enable 3PLSHT E3PR1 BK1LO 3PARC E3PR2 BK2LO NUMBK := 2 3PRI Figure 4.9 Three-Pole Reclose Enable SEL-411L Relay Protection Manual Date Code 20151029...
Page 483: Figure 4.10 One Circuit Breaker Single-Pole Cycle State (79Cy1)
Breaker Close Failure Time (BKCFD) SPARC Timing Timed Out Single Pole Reclaim Time (SPRCD) Lockout 3PARC Timed (BK1LO) to Beginning Ready State of 79CY3 (BK1RS) Figure 4.10 One Circuit Breaker Single-Pole Cycle State (79CY1) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 484: Figure 4.11 One Circuit Breaker Three-Pole Cycle State (79Cy3)
Time (79BRCT) Asserted? (BK1LO) Timed Out to Beginning of 79CY3 3PARC Timing Three-Pole Reclaim Timer (3PRCD) Breaker Open Timed Lockout Reset State (BK1LO) (BK1RS) Figure 4.11 One Circuit Breaker Three-Pole Cycle State (79CY3) SEL-411L Relay Protection Manual Date Code 20151029...
Page 485: Figure 4.12 Two Circuit Breakers Single-Pole Cycle State (79Cy1) When E79 := Y
To Reclaim Stage Recalculate NBKn, To Beginning Leader, and Follower of 79CY1 SPARC Time Between 3PARC 79CY3 Timed Breakers (TBBKD) Figure 4.12 Two Circuit Breakers Single-Pole Cycle State (79CY1) When E79 := Y Date Code 20151029 Protection Manual SEL-411L Relay...
Page 486 *Send Both Breakers to Ready State Determine Leader LEADBK2 LEADBK1 Breaker #1 Breaker #2 Ready State (BK1RS) Ready State (BK2RS) Figure 4.12 Two Circuit Breakers Single-Pole Cycle State (79CY1) When E79 := Y (continued) SEL-411L Relay Protection Manual Date Code 20151029...
Page 487: Figure 4.13 Two Circuit Breakers Single-Pole Cycle State (79Cy1) When E79 := Y1
To Reclaim Stage Recalculate NBKn, To Beginning Leader, and Follower of 79CY1 SPARC Time Between 3PARC 79CY3 Timed Breakers (TBBKD) Figure 4.13 Two Circuit Breakers Single-Pole Cycle State (79CY1) When E79 := Y1 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 488 *Send Both Breakers to Ready State Determine Leader LEADBK2 LEADBK1 Breaker #1 Breaker #2 Ready State (BK1RS) Ready State (BK2RS) Figure 4.13 Two Circuit Breakers Single-Pole Cycle State (79CY1) When E79 := Y1 (continued) SEL-411L Relay Protection Manual Date Code 20151029...
Page 489: Figure 4.14 Two Circuit Breakers Three-Pole Cycle State (79Cy3) When E79 := Y
Determine Active Is Leader Closed? Delay (BKnCLSD) Breakers in Scheme NBK2 NBK1 Timing Lockout Timed (BKnLO) Breaker Close Failure Timer (BKCFD) Figure 4.14 Two Circuit Breakers Three-Pole Cycle State (79CY3) When E79 := Y Date Code 20151029 Protection Manual SEL-411L Relay...
Page 490 Send Follower Lockout To Reclaim to Lockout (BKnLO) Stage BKR Close Failure Timer (BKCFD) 3PARC To Beginning of 79CY3 Figure 4.14 Two Circuit Breakers Three-Pole Cycle State (79CY3) When E79 := Y (continued) SEL-411L Relay Protection Manual Date Code 20151029...
Page 491 Determine Leader to the Reset State (BKnRS) LEADBK2 LEADBK1 Breaker #1 Breaker #2 Ready State (BK1RS) Ready State (BK2RS) Figure 4.14 Two Circuit Breakers Three-Pole Cycle State (79CY3) When E79 := Y (continued) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 492: Figure 4.15 Two Circuit Breakers Three-Pole Cycle State (79Cy3) When E79 := Y1
Determine Active Is Leader Closed? Delay (BKnCLSD) Breakers in Scheme NBK2 NBK1 Timing Lockout Timed (BKnLO) Breaker Close Failure Timer (BKCFD) Figure 4.15 Two Circuit Breakers Three-Pole Cycle State (79CY3) When E79 := Y1 SEL-411L Relay Protection Manual Date Code 20151029...
Page 493 Send Follower Lockout To Reclaim to Lockout (BKnLO) Stage BKR Close Failure Timer (BKCFD) 3PARC To Beginning of 79CY3 Figure 4.15 Two Circuit Breakers Three-Pole Cycle State (79CY3) When E79 := Y1 (continued) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 494: Manual Closing
Manual closing is available via the relay to issue a close to the circuit breaker(s) via the same close logic outputs used in autoreclosing (Relay Word bits BK1CL and BK2CL for up to two circuit breakers). The manual close logic can be user-configured in most any manner with SEL settings OGIC BK1MCL and BK2MCL.
Page 495 BK1 manual close logic is not actively operating and two breakers are enabled for the scheme (Global setting NUMBK := 2). Thus, manually closing can only be attempted for one breaker at a time. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 496: Figure 4.16 Manual Close Logic
(ULCL1 := 1 ?) Assert Breaker Close Failure output (BK1CFT := 1) De-assert Close Output (BK1CL := 0) From Breaker BK2 logic Breaker 2 Manual Close Logic Similar to Breaker 1 Figure 4.16 Manual Close Logic SEL-411L Relay Protection Manual Date Code 20151029...
Page 497: Voltage Checks For Autoreclosing And Manual Closing
Voltage Checks Supervising Autoreclosing For a fault on the line in Figure 4.17, both breakers trip open and the lead breaker recloses first. For example, presume the lead breaker closes only if its Date Code 20151029 Protection Manual SEL-411L Relay...
Page 498: Figure 4.17 Voltage Check Element Applications
(DLDB1) (DLDB2) Live Line/ Live Line/ Dead Bus 1 Dead Bus 2 (LLDB1) (LLDB2) Bus 1 Bus 2 Line (Bus 1 Potential) (Bus 2 Potential) (Line Potential) Figure 4.17 Voltage Check Element Applications SEL-411L Relay Protection Manual Date Code 20151029...
Page 499: Settings And Relay Word Bits For Autoreclosing And Manual Closing
PLT07 OGIC TBBKD Time Between Breakers for Automatic Reclose (1–99999 cycles) BKCFD Breaker Close Failure Delay (OFF, 1–99999 cycles) SLBK1 Lead Breaker = Breaker 1 (SEL Equation) OGIC SLBK2 Lead Breaker = Breaker 2 (SEL Equation) OGIC FBKCEN Follower Breaker Closing Enable (SEL...
Page 500 Label Prompt Default Value ULCL1 Unlatch Closing for Breaker 1(SEL Equation) 52AA1 AND OGIC 52AB1 AND 52AC1 ULCL2 Unlatch Closing for Breaker 2 (SEL Equation) 52AA2 AND OGIC 52AB2 AND 52AC2 79DTL Recloser Drive to Lockout (SEL Equation) OGIC 79BRCT...
Page 501: Table 4.25 Autoreclose Logic Relay Word Bits
3PSHOT1 Three-Pole Shot Counter = 1 3PSHOT2 Three-Pole Shot Counter = 2 3PSHOT3 Three-Pole Shot Counter = 3 3PSHOT4 Three-Pole Shot Counter = 4 3PLSHT Three-Pole Reclose Last Shot 3PRCIP Three-Pole Reclaim In-Progress Date Code 20151029 Protection Manual SEL-411L Relay...
Page 502 Dead Bus 1 (27L AND 27BK1) — LLDB2 Live Line Dead Bus 2 (59L AND 27BK2) — DLLB2 Dead Line Live Bus 2 (27L AND 59BK2) — DLDB2 Dead Line Dead Bus 2 (27L AND 27BK2) SEL-411L Relay Protection Manual Date Code 20151029...
Page 503: Synchronism Check
10 degrees, do not set the voltage angle difference setting to less than 15–20 degrees nominal. A paralleled system does not imply a zero degree voltage angle difference at every measuring point. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 504: Figure 4.20 Synchronism-Check Voltages For Two Circuit Breakers
All of these settings are listed in Section 5: Settings. The following subsections explain these settings and include an explanation of Alternative Synchronism-Check Voltage Source 2 settings (see Figure 4.31). SEL-411L Relay Protection Manual Date Code 20151029...
Page 505: Figure 4.21 Synchronism-Check Settings
ANG1BK2 — max. angle difference 1 ANG2BK1 — max. angle difference 2 ANG2BK2 — max. angle difference 2 TCLSBK1 — breaker close time TCLSBK2 — breaker close time BSYNBK1 — block synch check (SEL OGIC BSYNBK2 — block synch check (SEL OGIC Line .
Page 506: Table 4.26 Synchronism-Check Relay Word Bits
Supervising Autoreclosing of Circuit Breaker BK1 3P1CLS := 25A1BK1 OR … Three-Pole BK1 Reclose Supervision (SEL OGIC Equation) Manual Closing of Circuit Breaker BK1 BK1MCL := 25W2BK1 OR … Circuit Breaker BK1 Manual Close (SEL OGIC Equation) SEL-411L Relay Protection Manual Date Code 20151029...
Page 507: Figure 4.23 Example Synchronism-Check Voltage Connections To The Relay
) of the line. You can connect phase-to-phase voltage V originating from Bus 1, and connect phase-to-neutral voltage V from Bus 2. Thus, Bus 1 voltage V lags synchronism-check voltage reference V by 90 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 508: Figure 4.24 Synchronism-Check Voltage Reference
201 V Equation 4.1 Normalized Synchronism-Check Voltage Sources V and V The Figure 4.24 example continues in Figure 4.25, which graphically illustrates how the introduced settings adjust the Bus 1 and Bus 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 509: Figure 4.25 Normalized Synchronism-Check Voltage Sources Vs1 And Vs2
Voltage Checks and Two conditions can cause the synchronism-check function in the relay to abort. These conditions are out-of-range synchronism-check input voltages Blocking Logic and block synchronism-check configurations that you specify in SEL OGIC control equations. Voltage Magnitude Checks For synchronism-check to proceed for a given circuit breaker (BK1 or BK2),...
Page 510: Figure 4.26 Healthy Voltage Window And Indication
1 logical 1 Figure 4.26 Healthy Voltage Window and Indication Block Synchronism-Check If the block synchronism-check BSYNBKn SEL control equation (where OGIC n = 1 or 2 for Circuit Breaker BK1 or Circuit Breaker BK2, respectively) asserts, synchronism-check cannot proceed for the corresponding circuit breaker.
Page 511 Otherwise, if the phase angle is greater than or equal to angle setting ANG1BK1, element outputs 25W1BK1 and 25A1BK1 both deassert to logical 0; the relay declares that the per-phase voltages across Circuit Breaker BK1 are out-of-synchronism. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 512: Figure 4.28 "No Slip" System Synchronism-Check Element Output Response
Synchronism-Check Element Output Effects Note that element outputs 25W1BK1 and 25A1BK1 operate identically in all of the “no slip” cases in Figure 4.28 (both assert to logical 1 or deassert to logical 0). SEL-411L Relay Protection Manual Date Code 20151029...
Page 513: Figure 4.29 "Slip-No Compensation" Synchronism-Check Element Output Response
If the slip frequency is positive, V is slipping ahead of reference V (the system corresponding to V has a higher system frequency than the system corresponding to V > f ). Positive slip frequency is the counter- Date Code 20151029 Protection Manual SEL-411L Relay...
Page 514 Synchronism-check element output 25W1BK1 in Figure 4.30 operates the same as in Figure 4.29. Element output 25W1BK1 is unaffected by relay settings 25SFBK1 and TCLSBK1, and by whether system conditions are slipping. Element 25W1BK1 follows normalized synchronism-check voltage source V SEL-411L Relay Protection Manual Date Code 20151029...
Page 515: Figure 4.30 "Slip-With Compensation" Synchronism-Check Element Output Response
For any case [(a), (b), (c), or (d)] in Figure 4.30, the location of V is the location of V a period later (this period is setting TCLSBK1, Circuit Breaker BK1 Close Time). Consider, for example, issuing a CLOSE Date Code 20151029 Protection Manual SEL-411L Relay...
Page 516 Synchronism-Check Voltage Source 2 (ASYNCS2) and corresponding settings AKS2M and AKS2A for the regular Synchronism- Check Voltage Source 2 values SYNCS2, KS2M, and KS2A. The result is a normalized synchronism-check voltage source V derived from the alternative source. SEL-411L Relay Protection Manual Date Code 20151029...
Page 517: Figure 4.31 Alternative Synchronism-Check Source 2 Example And Settings
Generator switch to IN204 These input connections are for this application example only; use relay inputs that are appropriate for your system. Set the ALTS2 SEL control equation to assert when Circuit OGIC Breaker BK3 is open and the generator switch is closed.
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Page 519: Section 5: Settings
Section 5: Settings / Section 9: Monitoring and Metering / Section 6: Synchrophasors in the Com- munications Manual / Section 1: Communications Interfaces in the Communications Manual / Section 2: SEL Communications Protocols in the Communications Manual / Section 4: DNP3 Communications in the Communications Manual / Section 13: Time-Synchronized Measurements...
Page 520: Alias Settings
Frequency estimation ➢ Time-error calculation ➢ Current and voltage source selection ➢ Synchronized phasor measurement ➢ DNP3 ➤ Protection Free-Form SEL Control Equations on OGIC page P.5.9 ➤ Automation Free-Form SEL Control Equations on OGIC page P.5.9 ➤ Notes Settings on page P.5.10 ➤...
Page 521: Table 5.2 Default Alias Settings
TLED_1 INST TLED_2 TIME TLED_3 COMM TLED_4 SOTF TLED_5 ZONE_1 TLED_6 ZONE_2 TLED_7 ZONE_3 TLED_8 ZONE_4 TLED_9 A_PHASE TLED_10 B_PHASE TLED_11 C_PHASE TLED_12 TLED_13 TLED_14 87L_LST TLED_15 87L_ALM TLED_16 TLED_17 79_RST TLED_18 79_LO Date Code 20151029 Protection Manual SEL-411L Relay...
Page 522: Global Settings
Breaker 2 NFREQ Nominal System Frequency (50, 60 Hz) PHROT System Phase Rotation (ABC, ACB) FAULT Fault Condition Equation SEL Equation) 50P1 or 51S01 or Z2P or OGIC Z2G or Z3P or Z3G or 87LP or 87LQ or 87LG SEL-411L Relay...
Page 523: Table 5.5 Global Enables
If the interface board has more than eight input contacts, the upper range is 1 cycle. Set to Global setting IN2XXD when EICIS := N. mm is the number of available input contacts on the interface board. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 524: Table 5.9 Interface Board #2 Control Inputs
Equation) OGIC RST_BK2 Reset Monitoring Breaker 2 (SEL Equation) OGIC RST_BAT Reset Battery Monitoring (SEL Equation) OGIC RST_79C Reset Recloser Shot Count Accumulators (SEL Equation) OGIC RSTTRGT Target Reset (SEL Equation) OGIC RSTFLOC Reset Fault Locator (SEL Equation) OGIC RSTDNPE...
Page 525: Table 5.12 Frequency Estimation
Global Settings Make Table 5.12 settings when Global enable setting EGADVS := Y. Table 5.12 Frequency Estimation Default Label Prompt Value EAFSRC Alternate Frequency Source (SEL Equation) OGIC VF01 Local Frequency Source 1 (ZERO, VAY, VBY, VCY, VAZ, VBZ, VCZ) VF02...
Page 526: Table 5.16 Time And Date Management
Frequency Numerical Representation (I = Integer, F = Floating Point) NUMANA Number of Analog Values (0–8) NUMDSW Number of 16-bit Digital Status Words (0, 1, 2) TREA1 Trigger Reason Bit 1 (SEL Equation) OGIC TREA2 Trigger Reason Bit 2 (SEL Equation) OGIC...
Page 527: Protection Free-Form Sel Ogic Control Equations
OGIC factory default settings. NOTE: The -0 version of the relay has a capacity of 100 lines of The relay has a capacity of 100 lines of automation free-form SEL automation free-form SEL control OGIC OGIC equations in one automation setting control equations in each of 10 automation setting blocks.
Page 528: Notes Settings
NOT (SALARM OR HALARM) OUT209– OUT210 Make Table 5.21 settings if interface board #2 is present. Table 5.21 Interface Board #2 Label Prompt Default Value OUT301 • • • • • • • • • OUT316 SEL-411L Relay Protection Manual Date Code 20151029...
Page 529: Front-Panel Settings
Selectable Screens for the Front Panel Table 5.27 Selectable Operator Pushbuttons Table 5.28 Front-Panel Event Display Table 5.29 Local Control and Aliases Table 5.32 Display Points and Aliases Boolean Display Points Table 5.30 Analog Display Points Table 5.31 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 530: Table 5.26 Front-Panel Settings
Enable LED Asserted Color (R, G) TR_LEDC Trip LED Asserted Color (R, G) Equation) PLT01 #87L ENABLED PB1_LED Pushbutton LED 1 (SEL OGIC PB1_COL PB1_LED Assert and Deassert Color (Enter 2: R, G, A, O) PB2_LED Pushbutton LED 2 (SEL...
Page 531 Label Prompt Default Value PB12COL PB12LED Assert and Deassert Color (Enter 2: R, G, A, O) T1_LED Target LED 1 (SEL Equation) (87OP or Z1P or Z1G) and OGIC NOT (SOTFT OR TLED_3) T1LEDL Target LED 1 Latch (Y, N)
Page 532 Table 5.26 Front-Panel Settings (Sheet 3 of 4) Label Prompt Default Value T8LEDC T_LED Assert and Deassert Color (Enter 2: R, G, A, O) T9_LED Target LED 9 (SEL Equation) PHASE_A OR FTSAG OGIC T9LEDL Target LED 9 Latch (Y, N) T9LEDC T_LED Assert and Deassert Color...
Page 533: Table 5.27 Selectable Screens For The Front Panel
Default Value T19LEDL Target LED 19 Latch (Y, N) T19LEDC T_LED Assert and Deassert Color (Enter 2: R, G, A, O) T20_LED Target LED 20 (SEL Equation) 25A1BK1 OGIC T20LEDL Target LED 20 Latch (Y, N) T20LEDC T_LED Assert and Deassert Color...
Page 534: Table 5.28 Selectable Operator Pushbuttons
Types of Events for HMI Auto Display (ALL, TRIP) NUM_ER Operator Pushbutton Events to Display (1–100) Setting is only available if DISP_ER := Y. Setting is only available if an operator pushbutton has been set to EVE. SEL-411L Relay Protection Manual Date Code 20151029...
Page 535: Table 5.30 Boolean Display Points
Clear State] quotation marks [Pulse Enable] Pulse Local Bit (Y, N) Local Bit, Local Name, Local Set State, Local Clear State, Pulse Enable. OGIC a Table 5.33 Local Bit SEL Label Prompt Default Value LB_SPmm Local Bit Supervision (SEL Equation, NA)
Page 536: Port Settings
Default Value EPORT Enable Port (Y, N) MAXACC Maximum Access Level (1, B, P, A, 0, 2, C) PROTO Protocol (SEL, DNP, MBA, MBB, MBGA, MBGB, RTD, PMU) Not available on the front port. SEL-411L Relay Protection Manual Date Code 20151029...
Page 537: Table 5.37 Communications Settings
For PROTO := SEL only. For PROTO := SEL, MBA, MBB, or PMU only. For PROTO := SEL or PMU only. Make Table 5.38 settings if Port setting PROTO := SEL, DNP, or PMU. Table 5.38 SEL Protocol Settings Label...
Page 538: Table 5.40 Dnp3 Serial Protocol Settings
Retry Attempts for Phone 1 Dial-Out (1–20) RETRY2 Retry Attempts for Phone 2 Dial-Out (1–20) MDTIME Time to Attempt Dial (5–300 seconds) MDRET Time Between Dial-Out Attempts (5–3600 seconds) Hidden if DRETRY = OFF. Hidden if UNSOL = N. SEL-411L Relay Protection Manual Date Code 20151029...
Page 539: Table 5.41 Dnp3 Lan/Wan Settings
Hidden if DNPTRn := UDP. Hidden if CLASSAn := OFF. Hidden if CLASSAn := CLASSBn := CLASSCn := OFF. Hidden if UNSOLn := N. Make Table 5.42 settings if Port setting PROTO := MBA or MBB. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 540: Table 5.42 Mirrored Bits Protocol Settings
Selection for Analog Channel 5 (analog label) VBFM MBANA6 Selection for Analog Channel 6 (analog label) VCFM MBANA7 Selection for Analog Channel 7 (analog label) VABRMS MBNUMVT Number of Virtual Terminal Channels (OFF, 0–7) SEL-411L Relay Protection Manual Date Code 20151029...
Page 541: Table 5.43 Rtd Protocol Settings
87TIMC1 Channel 1 Timing Source (I = Internal, E = External) 87TIMC2 Channel 2 Timing Source (I = Internal, E = External) ECH1OUT Enable Channel 1 out of Service (SEL Equation) OGIC ECH2OUT Enable Channel 2 out of Service (SEL...
Page 542: Table 5.46 87L Channel Monitoring Settings
Max. Round Trip Delay for Ch 2 (OFF, 1.0–50 ms) 87CH2MD Max. Step Change in Ch 2 Delay (OFF, 3.0–50 ms) 87CH2MA Max. Allowable Asym. for Ch 2 (OFF, 0.2–10 ms) 87CHTRG 87L Recording Trigger (SEL Equation) 87LSP OGIC 87CHWP Enable Write Protect 87L Recording Files (Y, N) 87CH1PC Ch 1 Lost Packet Alarm Thres.
Page 543: Dnp3 Settings-Custom Maps
Use default DNP map for Analog Outputs (Y, N) Make Table 5.51 settings if preceding setting DNPBID := N. Table 5.51 Binary Input Map Label Prompt Default Value BI_n Binary Input label or 0 or 1. See Table 4.10. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 544: Bay Settings
LABEL x BUSNAMx Busbar b Name (max 40 pixels, 6–10 characters) BUSNAM x ByHMINM Breaker y HMI Name (max 17 pixels, 3–4 characters) BzCTLNM Breaker z Cntl. Scr. Name (max 15 characters) Breaker z SEL-411L Relay Protection Manual Date Code 20151029...
Page 545 Disconnect m Open Reset (SEL Equation) 89OPNr OR 89OSIr OGIC 89OBLr Disconnect m Open Block (SEL Equation) OGIC 89CIRr Dis. m Close Immob. Time Reset (SEL Equation) NOT 89OPNr OGIC 89OIRr Dis. m Open Immob. Time Reset (SEL Equation) NOT 89CLr OGIC...
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Page 547: Table 6.1 Sel Software Solutions
QuickSet Settings Database Management on ERATOR page P.6.20 ➤ QuickSet Help on page P.6.21 ERATOR SEL provides many PC software solutions (applications) that support SEL devices. These software solutions are listed in Table 6.1. Table 6.1 SEL Software Solutions Product Name Description SEL Compass...
Page 548: Section 6: Pc Software Overview
Application Description Terminal Provides a direct connection to the SEL device. Use this feature to ensure proper communications and directly interface with the device. Provides a summary view of device operation. Use this feature to simplify commissioning testing. Rules Based Settings Editor Provides on-line or off-line device settings that include interdependency checks.
Page 549: Ac Sel Erator Quickset Setup
See the discussions of the individual menu items in this section for a description of these functions. Communications QuickSet can communicate with a relay via any relay serial ERATOR port set to SEL protocol, via the front-panel USB port, or via Ethernet. Parameters Perform the following steps to configure QuickSet to ERATOR communicate with the relay.
Page 550 Enter the relay Access Level One and Access Level Two passwords in the respective text boxes. Step 4. Click OK when finished. SEL-411L Relay Protection Manual Date Code 20151029...
Page 551: Ac Sel Erator Quickset Terminal
QuickSet. The use of the driver version will be ERATOR discussed in more detail later in this section. Relay Settings Version Number FID = SEL-411L-R100-V0-Z001001-D20110418 HMI Version Number Figure 6.2 QuickSet Driver Information in the FID String ERATOR...
Page 552: Ac Sel Erator Quickset Hmi
Phasors A graphical and textual representation of phase and sequence voltages and currents. Instantaneous A table of instantaneous voltages, currents, powers, and frequency. Synchrophasor A table of synchrophasor data. SEL-411L Relay Protection Manual Date Code 20151029...
Page 553 HMI Control Window Select the Control Window branch to reset metering values, clear event records, trip and close reclosers/breakers, pulse output contacts, and set and clear remote bits (see Figure 6.4 for an example). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 554: Figure 6.4 Control Window
Tools > HMI > Manage Configurations. To make an existing configuration the default configuration for a given relay type, select the configuration in the Manage Configurations window, select Edit, and select the Default check box. SEL-411L Relay Protection Manual Date Code 20151029...
Page 555: Ac Sel Erator Quickset Settings
Control Equation Expression Builder, event analysis, and help. File Menu QuickSet uses a database to store and manage SEL device ERATOR settings. Each unique device has its own record of settings. Use the Settings menu to create New settings, to Open an existing record, and Read device settings.
Page 556: Figure 6.6 Setting The Part Number
Open window and prompts for a device to load into the Settings Editor. The Show settings with design templates and Show settings without design templates check boxes allow settings with or without SEL-5031 Design Templates to be included in or excluded from the Select Settings to Open window.
Page 557: Figure 6.8 Opening Settings
QuickSet shows all of the settings categories in the settings ERATOR tree view. The settings tree view does not change when settings categories are enabled or disabled. However, any disabled settings are dimmed. Figure 6.10 illustrates this feature of QuickSet. ERATOR Date Code 20151029 Protection Manual SEL-411L Relay...
Page 558: Figure 6.10 Relay Editor
ERATOR Expression Builder, a rules-based editor for programming SEL control OGIC equations. The Expression Builder organizes relay elements and SEL OGIC control equation variables and focuses equation decision-making. Access the Expression Builder Click the ellipsis button to the right of each logic setting in the Settings Editor window to start the Expression Builder (see Figure 6.11 for an example).
Page 559: Figure 6.11 Settings Editor Window
Equations may also be typed directly in the equation box. Click Accept to exit the Expression Builder and save the equation, or Cancel to exit without saving. For more information on programming SEL control equations, see OGIC Section 14: SEL Control Equation Programming.
Page 560 QuickSet provides a Convert ERATOR Settings report that shows missed, changed, and invalid settings created as a result of the conversion. Review this report to determine whether changes are required. SEL-411L Relay Protection Manual Date Code 20151029...
Page 561: Ac Sel Erator Quickset Event Analysis
SEL Compass and presents a menu of available drivers. ➤ Check for updates in the Help menu starts SEL Compass and checks for updates. An internet connection is required to add new drivers and to receive update notifications.
Page 562: Figure 6.13 Retrieving An Event History
Units, Starting/Ending Row); click OK. Click on any point in a graph to observe the Event Time in microseconds of that data point at the bottom of the oscillogram. Figure 6.14 Event Waveform Window SEL-411L Relay Protection Manual Date Code 20151029...
Page 563: Figure 6.15 Sample Event Oscillogram
Select the View menu and click Phasors, as shown in Figure 6.16, to view a sample-by-sample phasor display. The phasor display should be similar to Figure 6.17. Figure 6.16 Retrieving Event Report Waveforms Date Code 20151029 Protection Manual SEL-411L Relay...
Page 564: Figure 6.17 Sample Phasors Event Waveform Screen
Click Summary Data on the View menu to see event summary information and to confirm that you are viewing the correct event. Figure 6.19 shows a sample QuickSet Event Report Summary screen. ERATOR SEL-411L Relay Protection Manual Date Code 20151029...
Page 565: Figure 6.19 Sample Event Report Summary Screen
Click Relay Settings on the View menu to view the relay settings that were active at the time of the event. Figure 6.20 shows a sample CEV-type event Settings screen. Figure 6.20 Sample Event Waveform Settings Screen Date Code 20151029 Protection Manual SEL-411L Relay...
Page 566: Ac Sel Erator Quickset Settings Database Management
An example dialog box is shown in Figure 6.22. Click the Open B option button to open a database. Type a filename and click Open; for example, Relay2.rdb is the B relay in Figure 6.22. SEL-411L Relay Protection Manual Date Code 20151029...
Page 567: Ac Sel Erator Quickset Help
Select Help > Contents from the main menu bar. ERATOR QuickSet HMI Application Select Help > HMI Help from the main menu bar. Relay Settings Select Help > Settings Help from the from the main menu bar. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 568 Table 6.5 Help (Sheet 2 of 2) Help Description Database Manager Select Help from the bottom of the Database Manager window. Communications Select Help from the bottom of the Communication Parameters Parameters window. SEL-411L Relay Protection Manual Date Code 20151029...
Page 569: Section 7: Front-Panel Operations
The front panel for the horizontal 4U configuration is shown in Figure 7.1 (other configurations are similar). Liquid Crystal Direct-Action Operation Display (LCD) Pushbuttons EIA-232 and Trip and Navigation and Indicators Serial Port Target LEDs Pushbuttons Figure 7.1 Front Panel (12 Pushbutton Model) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 570: Figure 7.2 Lcd Display And Navigation Pushbuttons
QuickSet ERATOR SEL-5030 software program. Use the common EIA-232 open ASCII communications protocol to communicate with the relay via front-panel PORT F. Other communications protocols available with the front-panel port are ITS ®...
Page 571: Table 7.1 Front-Panel Inactivity Time-Out Setting
Pressing Down Arrow while at the bottom menu item causes the display to show the next set of full-screen menu items, with the first menu item highlighted. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 572: Table 7.2 Metering Screens Enable Settings
ROTATING DISPLAY ROTATING DISPLAY consisting of an example alarm points screen, an example display points screen, and the two factory-default metering screens, RMS_I and FUND_VI (the screen values in Figure 7.4 are representative values). SEL-411L Relay Protection Manual Date Code 20151029...
Page 573: Figure 7.4 Sample Rotating Display
The autoscrolling also appears after a front-panel ROTATING DISPLAY inactivity time out (see Front-Panel Inactivity Time Out). The relay retrieves data prior to displaying each new screen. The relay does not update screen Date Code 20151029 Protection Manual SEL-411L Relay...
Page 574: Figure 7.5 Sample Alarm Points Screen
Relay Word Bit, Reporting Name, Set State Name, Clear State Name, HMI Alarm Names can contain any valid ASCII character. Enclose the name within double quotation marks. See Example 7.1 for particular information on the format for entering SER point data. SEL-411L Relay Protection Manual Date Code 20151029...
Page 575: Table 7.3 Ser Point Settings
Pressing the ENT pushbutton will allow the user to acknowledge and clear deasserted alarms. Before clearing, you will be prompted to confirm that this is the intended action, as shown in Figure 7.7. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 576: Figure 7.7 Clear Alarm Point Confirmation Screen
The relay updates the display points data once per second if you are viewing the display points in manual-scrolling mode; in autoscrolling mode the relay updates the display points information each time the screen appears in the sequence. ROTATING DISPLAY SEL-411L Relay Protection Manual Date Code 20151029...
Page 577: Table 7.4 Display Point Settings-Boolean
Name, “Text1 Width.Decimal,Scale Text2”, “Text Size” DPxx := Table 7.4 Display Point Settings—Boolean (Sheet 1 of 2) Description Range Relay Word Bit Name Section 16: Relay Word Bits Alias ASCII string Set String ASCII string Date Code 20151029 Protection Manual SEL-411L Relay...
Page 578: Table 7.5 Display Point Settings-Analog
If a display point was used previously and you want to remove the display point, you can delete the display point. In the front-panel settings (SET F), at the Display Points and Aliases prompt, use the text-edit SEL-411L Relay Protection Manual Date Code 20151029...
Page 579 Again, this display point application example does not require a clear state, so the clear state is blank. If the Fast Meter test is not running and no other display points are active, the relay shows a blank screen in the ROTATING DISPLAY. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 580: Front-Panel Menus And Screens
MAIN MENU the background. Pressing the Right Arrow pushbutton increases the contrast. Pressing the Left Arrow pushbutton decreases the screen contrast. When finished adjusting the screen contrast, press the ENT pushbutton. SEL-411L Relay Protection Manual Date Code 20151029...
Page 581: Figure 7.12 Contrast Adjustment
Failure to password characters with a movable highlight box. change each default password to a private password may allow unauthorized access. SEL shall not Password be responsible for any damage Password Required Field resulting from unauthorized access.
Page 582: Figure 7.14 Invalid Password Screen
(E25BK1 := Y or (EDEM := OFF) E25BK2 := Y) No Differential Elements Differential Meter Enabled (E87CH = N) (E87CH enabled and E87L = Y) (E87L = N) Figure 7.16 METER MENU Screens SEL-411L Relay Protection Manual Date Code 20151029...
Page 583 DEMAND METER DEMAND METER column. Use the Left Arrow and Right Arrow pushbuttons to select a response to the reset prompt, and then press ENT to reset the metering quantity. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 584 IB = x xxx.xx +xxx° IC = x xxx.x IC = x xxx.xx +xxx° n = 1 or 2, representing Circuit Breaker 1 or Circuit Breaker 2, respectively. Figure 7.18 RMS, FUND, and DEMAND Metering Screens SEL-411L Relay Protection Manual Date Code 20151029...
Page 585 MAX/MIN BREAKER n LAST MAX/MIN RESET: MM/DD/YYYY HH:MM:SS n = 1 or 2, representing Circuit RESET MAX/MIN NOW? Breaker 1 or Circuit Breaker 2, respectively. Figure 7.19 ENERGY, MAX/MIN, and SYNCH CHECK Metering Screens Date Code 20151029 Protection Manual SEL-411L Relay...
Page 586 OGIC triggers. The relay displays event reports based on the Relay Word bit elements in the ER (event report trigger) SEL control equation. See Event OGIC Report on page P.8.15 for more information on event reports.
Page 587: Figure 7.21 Events Menu Screen
The upper right of the screen displays the number of the SER events currently being viewed. If a new event occurs while viewing the SER events, the display does not update with the new event automatically. To include the new SER Date Code 20151029 Protection Manual SEL-411L Relay...
Page 588: Table 7.7 Front-Panel Pushbutton Functions While Viewing Ser Events
SER event. Similarly, when the lower limit of the SER events is reached, press the Up Arrow one more time and the report will wrap around to display the screen containing the last SER event. SEL-411L Relay Protection Manual Date Code 20151029...
Page 589 If an alias exists for an element, the alias name is RELAY ELEMENTS displayed instead of the element name. The asterisk (*) in Figure 7.26 indicates that this Relay Word bit position is reserved for future use. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 590: Figure 7.26 Relay Elements Screen
If the relay finds no match, the screen displays an error message and stays in the screen. If the relay finds a match, ELEMENT SEARCH the screen displays the element row containing the matching element. SEL-411L Relay Protection Manual Date Code 20151029...
Page 591: Figure 7.28 Local Control Initial Menu
BREAKER 1 STATUS OPEN When you highlight the close option and press ENT, the relay displays the confirmation message and closes Circuit Breaker 1. CLOSE COMMAND ISSUED changes to BREAKER 1 STATUS CLOSED Date Code 20151029 Protection Manual SEL-411L Relay...
Page 592 PRESS TO ACTIVATE Figure 7.29 BREAKER CONTROL Screens LOCAL CONTROL BITS The relay provides 32 local control bits with SEL control equation OGIC supervision. These local bits replace substation control handles to perform switching functions such as bus transfer switching. The relay saves the states of the local bits in nonvolatile memory and restores the local bit states when you turn on the relay.
Page 593: Figure 7.30 Local Control Example Menus
Alternate Settings 3 In addition, Figure 7.30 gives an example of a custom-labeled function, Bus Tie Interlock. The LCD shows a graphic representation of a substation control handle. The LB_DPnn SEL control equation determines the state of the OGIC switch position on the LCD. If the LB_DPnn Relay Word bit is deasserted, the graphic control handle points to 0;...
Page 594: Table 7.8 Local Bit Control Settings
. Likewise, if you do not enter valid local bit element is already in use name, set alias, and clear alias, the relay returns an error message. If an alias is too long, the relay displays Too many characters Table 7.9 Local Bit SEL Control Equations OGIC Description Range...
Page 595: Figure 7.31 Local Bit Supervision Logic
➤ Assign the local bit to a relay output If you are using a previously used local bit, delete all references to the local bit from the SEL control equations already programmed in OGIC the relay. A good safety practice would be to disconnect any relay output that was programmed to that local bit.
Page 596: Table 7.10 Settings Available From The Front Panel
If the data you entered is valid (within settings range checks), the front-panel display returns to the settings category screen that shows each setting and corresponding present value (see the screen of LINE CONFIGURATION SEL-411L Relay Protection Manual Date Code 20151029...
Page 597 6 7 8 9 - . A B C D E F G H I J K L M N O P Q R S T U V W X ACCEPT BACKSPACE Figure 7.33 SET/SHOW Screens Date Code 20151029 Protection Manual SEL-411L Relay...
Page 598 The relay performs a password validation test at this point to confirm that you have Breaker Access Level authorization or above. Step 2. If access is allowed, and all the results of SEL control OGIC equations SS1–SS6 are not logical 1 (asserted), then the relay displays the screen in Figure 7.35.
Page 599: Figure 7.35 Changing The Active Group
Arrow and Down Arrow navigation pushbuttons to increment or decrement each date and time digit as appropriate to set the date and time. For a description of field, see Configuring High-Accuracy Timekeeping LAST UPDATE SOURCE on page P.13.1. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 600 The relay presents five screens in the order shown in Figure 7.39. Use the navigation pushbuttons to scroll through these screens. When finished viewing these screens, press ESC to return to the MAIN MENU SEL-411L Relay Protection Manual Date Code 20151029...
Page 601 PORT 5D COPPER BAY 4 - RS-232/IRIG CONFIGURATION INFO IF THE CONFIGURATION IS NOT WHAT YOU EXPECTED, CONTACT SEL FOR ASSISTANCE. Figure 7.39 VIEW CONFIGURATION Sample Screens Display Test You can use the option of the to confirm operation DISPLAY TEST MAIN MENU of all of the LCD pixels.
Page 602: Figure 7.41 Reset Access Level Screen
Section 12: Bay Control. BAYNAME BUS T BUS 1 BUS 2 Dis 1 Dis 2 Dis 3 Bkr 1 ANALOGS Dis 4 I:9999A V:999kV F:99.9Hz P:999MV Dis 5 Q:999MVR NAVIG Figure 7.42 One-Line Diagram Screen SEL-411L Relay Protection Manual Date Code 20151029...
Page 603: Front-Panel Automatic Messages
MAIN MENU full-screen warning replaces the . After you view the warning, MAIN MENU alarm, or trip screen, pressing ESC returns the LCD to the MAIN MENU Date Code 20151029 Protection Manual SEL-411L Relay...
Page 604: Operation And Target Leds
The relay displays no further LCD screens until the status failure clears. Should an unlikely status failure event occur, contact your local Technical Service Center or an SEL factory representative (see Factory Assistance on page P.11.46).
Page 605: Table 7.11 Front-Panel Target Leds
Pressing the TARGET RESET pushbutton illuminates all the LEDs. Upon releasing the TARGET RESET pushbutton, two possible trip situations can exist: the conditions that caused the relay to trip have cleared or the trip conditions Date Code 20151029 Protection Manual SEL-411L Relay...
Page 606: Table 7.12 Time Target Led Trigger Elements-Factory Defaults
You can reset the targets from the QuickSet Control branch of ERATOR the HMI tree view. Programming specific conditions in the SEL control OGIC equation RSTTRGT is another method to reset the relay targets. Access RSTTRGT in the relay Global settings (Data Reset Control); to use RSTTRGT, you must enable data reset control with Global setting EDRSTC := Y.
Page 607 OK for 0.5s (drop out, wrong relay ID, wrong firmware ID) ➤ the lost packet alarm is asserted ➤ the channel delay time is exceeded ➤ channel asymmetry is exceeded while the channel is required Date Code 20151029 Protection Manual SEL-411L Relay...
Page 608 The IRIG LOCKED target LED illuminates when the relay detects synchronization to an external clock with less than 500 ns of jitter (Relay Word bit TIRIG is asserted). See IRIG-B on page P.13.1 for complete details. SEL-411L Relay Protection Manual Date Code 20151029...
Page 609: Front-Panel Operator Control Pushbuttons
HMI screen category. The HMI screen categories available are Alarm Points, Display Points, and Event Summaries, and SER. Front-panel setting NUM_ER allows the user to define the number of event summaries that are Date Code 20151029 Protection Manual SEL-411L Relay...
Page 610 Right Arrow or the Down Arrow pushbutton. Pressing the ESC pushbutton will return the user to the . The second way to ROTATING DISPLAY program the operator control pushbutton is through SEL control OGIC equations, using the pushbutton output as a programming element.
Page 611: Figure 7.47 Factory-Default Operator Control Pushbuttons
Press this operator control pushbutton to trip Circuit Breaker 1. The corresponding BREAKER PB12LED BREAKER OPEN OPEN LED illuminates, indicating that Circuit Breaker 1 is open. = NOT 52ACL1 and 52BCL1 and 52CCL1 #BREAKER OPEN Figure 7.47 Factory-Default Operator Control Pushbuttons Date Code 20151029 Protection Manual SEL-411L Relay...
Page 612 This page intentionally left blank...
Page 613 The relay accepts an IRIG-B clock input for high-accuracy timing. When a suitable external clock is used (such as the SEL-2407), the relay synchronizes the data acquisition system to the received signal. Knowledge of the precise time of sampling (as shown in COMTRADE files) allows comparisons of data across the power system.
Page 614: Section 8: Oscillography, Events, And Ser Data Processing
Control input state changes will appear to occur faster in COMTRADE oscillography files than in event reports (EVE command) or Sequential Events Recorder reports (SER command) because of the control input debounce time delays. SEL-411L Relay Protection Manual Date Code 20151029...
Page 615: Figure 8.1 Signal Processing In The Relay
V&I Source Reference Select 1-Cycle Cosine Half-Cycle Digital Filter Digital Filter Digital Filter Filtered Breaker Event Metering Monitor Report PROTO := PMU Protection and Automation serial port(s) Figure 8.1 Signal Processing in the Relay Date Code 20151029 Protection Manual SEL-411L Relay...
Page 616: Triggering Data Captures And Event Reports
ER (Event Report Trigger) ➤ TRI command In previous SEL relays, the PUL command initiated event recording. If you want the PUL command to initiate data capture, add the Relay Word bit TESTPUL to the SEL control equation ER.
Page 617: Duration Of Data Captures And Event Reports
OGIC This example shows you how to add the effect of the PUL command to emulate previous SEL relays. The relay asserts Relay Word bit, TESTPUL, when any output is pulsed via the PUL command. Program the Group settings SEL...
Page 618: Table 8.1 Report Settings
The lower rows of Table 8.2 show the number of event reports the relay stores at the maximum data capture times for each SRATE sampling rate setting. Table entries are the maximum number of stored events; these can vary by 10 percent according to relay memory usage. SEL-411L Relay Protection Manual Date Code 20151029...
Page 619: Oscillography
The relay outputs 8-samples/cycle and 4-samples/cycle filtered event reports through a terminal or as files in ASCII format, Compressed ASCII format, and binary FTP and Ymodem file outputs. Figure 8.3 shows a sample filtered-data oscillogram. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 620: Figure 8.3 Sample Oscillogram
(see Event Summary Section of the Event Report and Settings Section of the Event Report). The settings portion is in a comma-delimited format as illustrated in Figure 8.4. SEL-411L Relay Protection Manual Date Code 20151029...
Page 621: Figure 8.4 Sample Comtrade .Hdr Header File
<CR><LF> follows each line. If control inputs or control outputs are not available because of board loading and configuration, the relay does not report these inputs and outputs in the analog and digital sections of the .CFG file. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 622: Figure 8.5 Comtrade .Cfg Configuration File Data
P.8.10 Oscillography, Events, and SER Oscillography Station A,FID=SEL-411L-1-R100-V0-Z001001-D20110311,1999 Relay Information (1999 = COMTRADE Standard) 398,14A,384D 398 = sum of analogs and digitals 1,IAW,A,,A,0.324059,0,0,-32767,32767,200.0,1,P 14A = total number of analog channels 2,IBW,B,,A,0.324059,0,0,-32767,32767,200.0,1,P 384D = total number of digital points* 3,ICW,C,,A,0.324059,0,0,-32767,32767,200.0,1,P 4,IAX,A,,A,0.324059,0,0,-32767,32767,200.0,1,P 5,IBX,B,,A,0.324059,0,0,-32767,32767,200.0,1,P...
Page 623 160.4 40.4 -115.7 120.0 87 Differential Currents PreFault: MAG(pu) 0.00 0.00 0.00 0.00 0.00 ANG(DEG) -170.9 -157.0 -73.6 149.3 -140.8 Fault: MAG(pu) 0.00 4.46 0.00 3.53 4.46 ANG(DEG) 139.2 -178.7 -28.5 29.5 -178.7 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 624: Figure 8.6 Comtrade Header File
IRRFO: IRR filter outputs for channels W and X when the relay detects a traveling wave on any phase. If the relay did not detect a traveling wave, or if a particular current channel was SEL-411L Relay Protection Manual Date Code 20151029...
Page 625 QuickSet. ERATOR Visualizing TW Data Oscillograms Many programs read the binary TW COMTRADE files. The SEL-5601 software can read the binary TW COMTRADE files and display the time stamp in nanosecond resolution. Figure 8.7 shows an example of a TW COMTRADE file using SEL-5601.
Page 626: Event Reports, Event Summaries, And Event Histories
Event Reports, Event Summaries, and Event Histories Figure 8.7 Example Traveling Wave Oscillogram Event Report Use a terminal or SEL-supplied PC software to retrieve filtered event report files stored in the relay and transfer these files to your computer. Both Oscillography...
Page 627: Table 8.3 Eve Command
Return the most recent event report (including settings and summary) at full length with 4-samples/cycle data. EVE n Return a particular n event report (including settings and summary) at full length with 4-samples/cycle data. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 628: Table 8.4 Eve Command Examples
The following discussion shows sample portions of an event report that you download from the relay using a terminal and the EVE command. An event report contains analog, digital, summary, and settings sections without breaks. SEL-411L Relay Protection Manual Date Code 20151029...
Page 629: Figure 8.8 Fixed Analog Section Of The Event Report
[11] 13.8 216.8 143.1 -147.1 54.8 -0.7 -0.3 -289.1 332.1 -93.5 Circuit Breaker Open -8.1 -1.6 -1.1 -217.0 -142.8 109.8 -58.2 289.0 -332.2 65.3 Figure 8.8 Fixed Analog Section of the Event Report Date Code 20151029 Protection Manual SEL-411L Relay...
Page 630: Table 8.5 Event Report Metered Analog Quantities
Terminal 2, filtered total remote current, Phase C IQR2 Terminal 2, filtered total negative-sequence current IGR2 Terminal 2, filtered total zero-sequence current IAR3 Terminal 3, filtered total remote current, Phase A IBR3 Terminal 3, filtered total remote current, Phase B SEL-411L Relay Protection Manual Date Code 20151029...
Page 631 The relay marks the row used to report the maximum fault current with an asterisk (*) character at the right of the last digital element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 632: Figure 8.9 Digital Section Of The Event Report
*** ....*..*........*** ....*..*........Figure 8.9 Digital Section of the Event Report SEL-411L Relay Protection Manual Date Code 20151029...
Page 633: Figure 8.10 Sample Digital Portion Of The Event Report
Protection Math Variables PMV01–PMV06, and you want to include these six PMVs in the event report. Enter the six PMVs in the Event Reporting Analog Quantities as shown below. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 634 The information in the summary portion of the event report is the same information in the event summary, except that the report header does not appear immediately before the event information when you view a summary in the event report. SEL-411L Relay Protection Manual Date Code 20151029...
Page 635: Figure 8.11 Summary Section Of The Event Report
SEL control equation settings and alias settings. For the group OGIC settings and the protection SEL settings, the relay reports only the active OGIC group. The settings order in the event report is the same order as when you issue a SHOW command from a terminal.
Page 636: Figure 8.12 Settings Section Of The Event Report
COMTRADE files) include all eight Relay Word bits from each row of the Relay Word that has at least one element included in the event report digital elements setting. For the purpose of improving products and services, SEL sometimes changes the items and item order.
Page 637: Figure 8.13 Sample Compressed Ascii Event Report
(see Triggering Data Captures and Event Reports). See Figure 8.14 for a sample event summary. The relay can be configured to automatically send an event summary (see Automatic Messages on page C.2.7). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 638: Figure 8.14 Sample Event Summary Report
Relay Word bits during the event. If no trip or circuit breaker element asserted during the event, the relay uses the last row of the event. SEL-411L Relay Protection Manual Date Code 20151029...
Page 639: Table 8.7 Event Types
(AG T, for example). TRIP The event report includes the rising edge of Relay Word bit TRIP, but phase involvement is indeterminate. The relay generates the event with elements in the SEL con- OGIC trol equation ER, but phase involvement is indeterminate.
Page 640: Figure 8.15 Sample Compressed Ascii Summary
Items included in the Compressed ASCII summary report are similar to those included in the summary report, although the relay reports the items in a special order. For the purpose of improving products and services, SEL sometimes changes the items and item order.
Page 641: Figure 8.16 Sample Event History
Return the event summaries from date1 to date2, with date1 at the bottom of the list and date2 at the top of the list. HIS C Clear all event data on the present port. HIS R Clear all event data on the present port. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 642: Figure 8.17 Sample Compressed Ascii History Report
Items included in the Compressed ASCII history report are similar to those included in the history report, although the relay reports the items in a special order. For the purpose of improving products and services, SEL sometimes changes the items and item order.
Page 643: Sequential Events Recorder (Ser)
SER data that has been recorded, but not viewed, on a particular serial port. To clear all SER data on a serial port, use the SER C or SER R command. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 644: Table 8.10 Ser Commands
Items included in the Compressed ASCII SER report are similar to the SER report, although the relay reports the items in a special order. For the purpose of improving products and services, SEL sometimes changes the items and item order.
Page 645: Figure 8.19 Sample Compressed Ascii Ser Report
Oscillography, Events, and SER P.8.33 Sequential Events Recorder (SER) "RID","SID","FID","03e2" Report Header "Relay 1","Station A","SEL-411L-R101-V0-Z001001-D20010315","0dfc" "#","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","ELEMENT","STATE","0FC8" 1,3,15,2001,00,32,00,114,"GROUND_O/C_1_LINE_1","51S1_DROPOUT","09D2" 2,3,15,2001,00,32,00,114,"GROUND_O/C_1_LINE_1","51S1_RESET","08E7" SER Data (6 records) 3,3,15,2001,00,30,03,221,"GROUND_O/C_1_LINE_1","51S1_TIMEOUT","09B0" 4,3,15,2001,00,30,00,021,"GROUND_O/C_1_LINE_1","51S1_PICK_UP","097B" 5,3,15,2001,00,00,00,222,"Relay","Enabled","09BA" 6,3,15,2001,00,00,00,004,"Power-up","Group 1","0A0A" Figure 8.19 Sample Compressed ASCII SER Report SER File Download You can also download the SER data as a file from the relay. Use a terminal emulation program with file transfer capability.
Page 646 5 minutes, the relay stores at least 10 days of all analog signals selected for profiling in nonvolatile memory. The report includes the time of acquisitions and the magnitude of each selected analog quantity. By defining conditions in the signal profiling enable SEL variable setting OGIC (SPEN), you can record analog values at particular periods or conditions of interest.
Page 647: Section 9: Monitoring And Metering
The relay notifies you when each set of circuit breaker pole contacts exceeds preset wear thresholds. Using this information, you can operate your substation more economically by accurately scheduling circuit breaker maintenance. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 648: Table 9.1 Circuit Breaker Monitor Configuration
Description Range Default EB1MON Enable Circuit Breaker 1 monitoring Y, N BK1TYP Circuit Breaker 1 type 1, 3 EB2MON Enable Circuit Breaker 2 monitoring Y, N BK2TYP Circuit Breaker 2 type 1, 3 SEL-411L Relay Protection Manual Date Code 20151029...
Page 649 Relay Word bit, B1BCWAL, for Circuit Breaker 1. You can OGIC ® use this Relay Word bit in a SEL control equation to alert operations personnel, or you can control other functions such as blocking reclosing. The relay clips or limits the maximum reported circuit breaker wear percentage at 150 percent.
Page 650: Table 9.2 Circuit Breaker Maintenance Information-Example
1.0–999 kA in 0.1 kA steps B1KASP3 kA interrupted set point 3—max 1.0–999 kA in 0.1 kA steps The ratio of settings B1KASP3/B1KASP1 must be in the range: 5  B1KASP3/B1KASP1  100. SEL-411L Relay Protection Manual Date Code 20151029...
Page 651: Figure 9.3 Circuit Breaker Contact Wear Curve With Relay Settings
B1COSP1). This is the close/open operation limit regardless of interrupted current value (for the Example 9.1 circuit breaker, this is at B1COSP1 := 10000). Some manufacturers call this point the mechanical circuit breaker service life. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 652  = A, B, OGIC and C). monitor. For Circuit Breaker 1, this setting is BM1TRP. These SEL OGIC control equations use Relay Word bits to determine when the circuit breaker monitor accumulates circuit breaker operating parameters from phases A, B, and C.
Page 653 Control Input IN201 is located on the relay I/O Interface Board #1, optoisolated input. If you want Circuit Breaker Monitor 1 to initiate for the trip elements TPA1, TPB1, and TPC1, or for external trips, set these SEL control OGIC...
Page 654: Figure 9.4 Trip Bus Sensing With Relay Input In206
OGIC determine when the circuit breaker monitor times mechanical closing, electrical closing, and pole scatter. Table 9.5 shows the factory default settings for circuit breaker monitor close initiation. Table 9.5 Circuit Breaker Monitor Close SEL Control Equations OGIC Name Description...
Page 655: Figure 9.5 Mechanical Operating Time For Circuit Breaker 1 A-Phase
The control voltage for this example is 125 Vdc. Control Inputs IN201–IN203 are located on the relay main board and are direct-coupled inputs. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 656 P.9.10 Monitoring and Metering Circuit Breaker Monitor Set the Relay Word bits to respond to these inputs. 52AA1 := IN201. A-phase N/O Control Input—BK1 (SEL Equation) OGIC 52AB1 := IN202 B-phase N/O Control Input—BK1 (SEL Equation) OGIC 52AC1 := IN203 A-phase N/O Control Input—BK1 (SEL...
Page 657: Figure 9.6 Electrical Operating Time For Circuit Breaker 1 A-Phase
BM1TRPB := TPB1 OR IN202 Breaker Monitor B-phase Trip—BK1 (SEL Equation) OGIC BM1TRPC := TPC1 OR IN203 Breaker Monitor C-phase Trip—BK1 (SEL Equation) OGIC BM1CLSA := BK1CL OR IN204 Breaker Monitor A-phase Close—BK1 (SEL Equation) OGIC Date Code 20151029 Protection Manual SEL-411L Relay...
Page 658: Figure 9.7 Timing Illustration For Pole Scatter At Trip
Once activated, the pole scatter alarm remains asserted for five seconds. Pole A: 52AA1 Pole B: 52AB1 Pole C: 52AC1 All Poles Closed All Poles Open Figure 9.7 Timing Illustration for Pole Scatter at Trip SEL-411L Relay Protection Manual Date Code 20151029...
Page 659 One phase auxiliary circuit breaker (52A) contact status change exceeds B1PSTRT plus approximately 5 ms after the trip initiation ➤ One phase auxiliary circuit breaker (52A) contact status change exceeds B1PSCLT plus approximately 5 ms after the close initiation Date Code 20151029 Protection Manual SEL-411L Relay...
Page 660: Figure 9.8 Pole Discrepancy Measurement
B1PDD, then the relay asserts the B1PDAL alarm. Once activated, the relay asserts the pole discrepancy alarm for five seconds. Pole A: 52AA1 Pole B: 52AB1 Pole C: 52AC1 All Poles Open Pole Discrepancy Figure 9.8 Pole Discrepancy Measurement SEL-411L Relay Protection Manual Date Code 20151029...
Page 661 B1ITAT := 365 Inactivity Time Alarm Thresh—BK1 (N, 1–9999 days) Assertion of the Relay Word bit B1BITAL indicates that it has been more than 365 days since the last Circuit Breaker 1 operation. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 662 An alarm asserts if the elapsed motor running time exceeds the predefined threshold setting B1MRTAT. Setting B1MRTIN is a SEL control equation to activate the OGIC motor-running timer.
Page 663: Table 9.6 Bre Command
RST_BK1 and RST_BK2 can also be used to reset the circuit breaker data. The BRE 1 or BRE 2 commands display the circuit breaker report for the most recent Circuit Breaker 1 or Circuit Breaker 2 operation, respectively. You can also reset the circuit breaker report with Global SEL setting OGIC RST_BK1 and RST_BK2 for circuit breaker report 1 and 2, respectively.
Page 664: Figure 9.9 Breaker Report (For The Most Recent Operation)
The maximum number of operations or accumulated primary current (in kA) you can enter is 9999999. The circuit breaker preload terminal screen is similar to Figure 9.11 for both the terminal and QuickSet. ERATOR SEL-411L Relay Protection Manual Date Code 20151029...
Page 665: Figure 9.11 Circuit Breaker Preload Data
The relay arranges items in the Compressed ASCII circuit breaker report in a special order. For the purpose of improving products and services, SEL sometimes changes the items and item order. The information presented below explains the message and serves as a guide to the items in a Compressed ASCII configuration circuit breaker report.
Page 666: Station Dc Battery System Monitor
Use the SET G ASCII command from a terminal or use the monitor settings. QuickSet Global > Station DC Monitoring branch of the ERATOR Settings tree view to access the DC Monitor settings. SEL-411L Relay Protection Manual Date Code 20151029...
Page 667: Table 9.7 Dc Monitor Settings And Relay Word Bit Alarms
Table 9.8 Example DC Battery Voltage Conditions (Sheet 1 of 2) Condition Calculation Battery Voltage (Vdc) Trip/Close 80% • 125 Vdc 100.0 Open-Circuit 60 (cells) • 2.06 (volts/cell) 123.6 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 668: Table 9.9 Example Dc Battery Monitor Settings-125 Vdc For Vdc1 And 48 Vdc For Vdc2
DC1RP and DC2RP should be set at or greater than 10 percent (2 • 5% peak) of the equalizing voltage. Table 9.10 shows the ac ripple threshold settings for this example. SEL-411L Relay Protection Manual Date Code 20151029...
Page 669: Table 9.10 Example Dc Battery Monitor Settings-Ac Ripple Voltages
|Vdc positive| DC1GF := 1.05 (volts) Relay Word bit DC1G alarm area Normal operating area Relay Word bit DC1G alarm area |Vdc negative| (volts) Figure 9.13 Ground Detection Factor Areas Date Code 20151029 Protection Manual SEL-411L Relay...
Page 670: Table 9.11 Example Dc Battery Monitor Settings-Ground Detection Factor (Egadvs := Y)
DC Battery Monitor Alarm You can use the battery monitor Relay Word bits to alert operators for out-of-tolerance conditions in the battery systems. Add the appropriate Relay Word bit to the SEL control equation that drives the relay control output OGIC you have selected for alarms.
Page 671: Metering
Display fundamental line metering information MET DIF Display differential metering quantities MET BKn Display fundamental Circuit Breaker n metering information MET RMS Display rms line metering information MET BKn RMS Display rms Circuit Breaker n metering information Date Code 20151029 Protection Manual SEL-411L Relay...
Page 672 1-cycle metering also reports sequence quantities referenced to A-phase. The relay average values. references angle measurements to positive-sequence quantities. The relay reports angle measurements in the range of ±180.00 degrees. SEL-411L Relay Protection Manual Date Code 20151029...
Page 673: Table 9.13 Instantaneous Metering Quantities-Voltages, Currents, Frequency
Conversely, Q is negative when the <  voltage angle is less than the current angle ( ; this is when the current leads the voltage, as in the case of capacitive loads. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 674: Table 9.14 Instantaneous Metering Quantities-Powers
The relay is a high-accuracy metering instrument. Table 9.15 and Table 9.16 show the metering accuracy for the relay instantaneous metering quantities at nominal power system frequency and at 20C. Use a method similar to that in Example 9.11 to compute exact error coefficients. SEL-411L Relay Protection Manual Date Code 20151029...
Page 675: Table 9.15 Instantaneous Metering Accuracy-Voltages, Currents, And Frequency
+0.002 A to +0.006 A –0.006 A to –0.002 A Equation 9.7 Figure 9.16 represents the calculated accuracy range. The error is very small, indicating that the relay measures normal operating currents accurately. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 676: Table 9.17 Maximum/Minimum Metering Quantities-Voltages, Currents, Frequency, And Powers
Positive-sequence voltage magnitude Negative-sequence voltage magnitude Zero-sequence voltage magnitude DC battery voltage VDC1, VDC2 Positive-sequence current magnitude Negative-sequence current magnitude Zero-sequence current magnitude Frequency Circuit breaker rms current rms Three-phase true real power SEL-411L Relay Protection Manual Date Code 20151029...
Page 677 FAULT SEL Control Equation OGIC The relay suspends updating maximum/minimum metering when SEL OGIC control equation FAULT asserts to logical 1. If there is a fault, the elements programmed in FAULT pick up and assert Relay Word bit DFAULT (Delayed FAULT Suspend).
Page 678: Table 9.18 Demand And Peak Demand Metering Quantities-(Line)
P.9.32 Monitoring and Metering Metering The factory default setting for SEL control equation FAULT includes OGIC specific time-overcurrent and distance elements pickups: FAULT := 50P1 OR 51S01 OR Z2P OR Z2G OR Z3P OR Z3G. In addition, the relay also suspends demand metering during the time that Relay Word Bit DFAULT is asserted.
Page 679: Table 9.19 Rolling Demand Calculations
(per unit) Total Calculation (per unit) –5 to 0 0 / 3 0 to 5 1 / 3 0.33 5 to 10 2 / 3 0.67 10 to 15 3 / 3 1.00 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 680: Figure 9.18 Rolling Demand Metering
(thermal or rolling) appropriate to your needs. Use demand pickup settings PDEMP, QDEMP, and GDEMP to set alarm thresholds to notify you when demand currents exceed preset operational points. Table 9.20 shows the demand metering settings. SEL-411L Relay Protection Manual Date Code 20151029...
Page 681: Table 9.20 Demand Metering Settings
QDEMP 3I 2(DEM) QDEM Thermal (EDEM := THM) 3I 2 (Residual) Rolling (EDEM := ROL) Command Reset Demand MET RD, setting EDEM change, or setting DMTC change Figure 9.19 Demand Current Logic Outputs Date Code 20151029 Protection Manual SEL-411L Relay...
Page 682: Table 9.21 Energy Metering Quantities-(Line)
Single-phase energy export MWHIN MWh, primary Single-phase energy import MWHT MWh, primary Single-phase energy total 3MWHOUT MWh, primary Three-phase energy export 3MWHIN MWh, primary Three-phase energy import 3MWH3T MWh, primary Three-phase energy total SEL-411L Relay Protection Manual Date Code 20151029...
Page 683 The relay displays the differential metering quantities when the following is true: ➤ The 87L communications scheme defined by the E87CH setting (Port 87 settings) is not disabled (E87CH  ➤ The 87L element is enabled (Group settings E87L = Y). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 684: Figure 9.20 Response To The Met Dif Command
MAG (pu) 1.387 0.989 0.990 1.122 0.399 0.396 ANG (DEG) -0.13 -119.96 120.13 0.00 -0.87 -0.47 THROUGH (pu) 1.389 1.001 1.001 0.398 0.398 Remote Terminal 1 MAG (pu) 1.195 0.994 0.995 1.061 0.202 0.199 SEL-411L Relay Protection Manual Date Code 20151029...
Page 685: Table 9.22 Differential Metering Quantities
Positive-sequence current magnitude |I1| (I1) Positive-sequence current angle Negative-sequence current magnitude |3I2| (3I2) Negative-sequence current angle Zero-sequence current magnitude |3I0| (3I0) Zero-sequence current angle Positive-sequence quantities are not displayed for differential and Alpha Plane. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 686 This page intentionally left blank...
Page 687 ➤ SEL Contact Card ➤ Configurable Front-Panel Label Kit If any item is missing or damaged, please contact your distributor or SEL immediately. Initial Inspection Perform the following initial inspection when the relay arrives: Step 1. Remove the protective wrapping from the relay.
Page 688: Section 10: Basic Relay Operations Inspecting A New Relay
Interface Boards that have 24 optoisolated inputs, which is determined at ordering time. In the sample shown, only Slot B contains an INTC and INTD I/O Interface board, so only one input rating appears. SEL-411L Relay Protection Manual Date Code 20151029...
Page 689: Connecting And Applying Power
+ (Terminal #Z29) and – (Terminal #Z30) symbols on the power terminals. ➤ You can use ac input for the 48/125 Vdc power supply and the 125/250 Vdc power supply. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 690: Establishing Communication
Fast and efficient communication with the relay is available through communications ports such as PORT F, also shown in Figure 10.3. A design philosophy for all SEL relays is that an ASCII or open terminal is all that you need to communicate with the relay. Many off-the-shelf computer programs provide terminal emulation.
Page 691: Table 10.2 General Serial Port Settings
SEL serial cables to connect to the relay. Serial Port Use an SEL Cable C234A to connect a 9-pin computer serial port to the relay. Connection Use an SEL Cable C227A to connect a 25-pin computer serial port to the relay.
Page 692: Changing The Default Passwords
(Access Level C is reserved for SEL factory operations. Only go to Access Level C to change the Level C password or under the direction of an SEL employee.) For example, from Access Level 1, you can view settings but you cannot change settings.
Page 693: Table 10.3 Access Levels Commands And Passwords
Perform all relay access level functions. 2ACCESS TAIL ==>> SEL calibration-specific functions. For a list of Sel-1 commands available, contact SEL. The relay performs command interpretation and execution according to your validated access level. Each access level has a password that the relay must verify before you can control the relay at that level.
Page 694 Network Protocol Version 3.0), and M communications virtual IRRORED terminal mode. For more information on these protocols, see Section 2: SEL Communications Protocols in the Communications Manual and Section 4: DNP3 Communications in the Communications Manual. If your connection to the relay has an inactivity time-out (in the SET P port settings), the relay automatically closes the communications connection and changes to Access Level 0 when the time-out occurs.
Page 695 Type CAL <Enter>. f. At the password prompt, type Sel-1 <Enter>. You will see the Access Level C ==>> prompt. Step 4. To set a new password for Access Level 2, type the following: PAS 2 <Enter>...
Page 696: Checking Relay Status
=>STA <Enter> Relay 1 Date: 03/15/2001 Time:07:02:50.776 Station A Serial Number: 000101234 FIDSEL-411L-R101-V0-Z001001-D20010315 CID0x9aed Failures No Failures Warnings No Warnings Relay Programming Environment Errors OGIC No Errors Relay Enabled => Figure 10.6 Relay Status SEL-411L Relay Protection Manual Date Code 20151029...
Page 697 QuickSet Communication Parameters and ERATOR Password Entry c. Select the Data Speed, Data Bits, Stop Bits, Parity, and RTS/CTS that match the relay settings. The defaults are 9600, 8, 1, None, and Off, respectively. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 698 ROTATING DISPLAY Step 2. Press the ENT pushbutton to display the Figure 10.9 MAIN MENU. shows an example. SEL-411L Relay Protection Manual Date Code 20151029...
Page 699: Making Simple Settings Changes
QuickSet uses a similar method to focus your attention on the ERATOR active settings. Unused relay elements and inactive settings are dimmed (grayed) in the QuickSet menus. See Section 6: PC Software ERATOR for more information on QuickSet. ERATOR Date Code 20151029 Protection Manual SEL-411L Relay...
Page 700: Table 10.4 Settings Classes And Instances
• • Block 10 Block 10 automation SET A 10 control equations OGIC DNP3 Direct Network Protocol data DNP3 SET D 1 P, A, O, 2 remapping • • • SET D 5 SEL-411L Relay Protection Manual Date Code 20151029...
Page 701: Figure 10.10 Components Of Set Commands
P, A, O, 2 leave notes in the relay SER is the Sequential Events Recorder; see Sequential Events Recorder (SER) on page P.8.31. The relay has only one block of automation SEL control equations. OGIC Note that some settings classes have only one instance and you do not specify the instance designator when accessing these classes.
Page 702: Table 10.5 Actions At Settings Prompts
Step 2. Type SET G DATE_F <Enter> (this sets the date format using the DATE_F setting, which has options of MDY, YMD, or DMY). The relay responds with a terminal screen display similar to the beginning of Figure 10.11. SEL-411L Relay Protection Manual Date Code 20151029...
Page 703: Figure 10.11 Initial Global Settings
On slow data speed links, waiting for the complete settings readback can clog your automation control system or take too much of your time for a few settings changes. Eliminate the settings readback by appending TERSE to the SET command. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 704: Table 10.6 Actions At Text-Edit Mode Prompts
(see Making an EIA-232 Serial Port Connection) In addition, you must be familiar with relay access levels and passwords (see Changing the Default Passwords: Terminal) to change the default access level passwords. SEL-411L Relay Protection Manual Date Code 20151029...
Page 705 At the end of the readback information, just before the Save prompt, you can verify the new display settings (Y,N) ? point information. Step 8. Answer Y <Enter> to save the new settings. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 706: Figure 10.12 Using Text-Edit Mode Line Editing To Set Display Points
Use the LCD and the adjacent navigation pushbuttons to enter each character of the setting in sequence. This can be a laborious process for some settings (e.g., long SEL control equations). However, if you need to make a quick OGIC correction or have no faster means to make settings, settings functions are available at the front panel.
Page 707: Operating The Relay Inputs And Outputs
OUT204. This output is a standard control output and is not polarity sensitive. For more information on connecting control outputs, see Control Outputs on page P.2.6. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 708: Figure 10.13 Terminal Display For Pulse Command
ROTATING DISPLAY Step 3. Press the ENT pushbutton to view the similar to that MAIN MENU, at the top of Figure 10.14. SEL-411L Relay Protection Manual Date Code 20151029...
Page 709: Figure 10.14 Front-Panel Menus For Pulsing Out204
The relay detects your request for a function at an access level for which you do not yet have authorization. Whenever this condition occurs, the relay displays the password access screen of Figure 10.15. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 710: Figure 10.15 Password Entry Screen
See Section 4: Autoreclosing and Synchronism-Check for more information. Close the circuit breakers using Relay Word bits BK1CL and BK2CL for Circuit Breaker 1 and Circuit Breaker 2, respectively. SEL-411L Relay Protection Manual Date Code 20151029...
Page 711 The relay sends all configuration and settings data to QuickSet. ERATOR Step 4. Access Interface Board 1 output settings. a. Expand the Outputs branch of the Settings tree view. b. Click Interface Board Outputs (see Figure 10.16). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 712: Figure 10.16 Assigning An Additional Close Output: Ac Sel Erator Quickset
Figure 10.17. c. Click OK. QuickSet responds with the second ERATOR dialog box of Figure 10.17. If you see no error message, the new settings are loaded in the relay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 713: Readying The Relay For Field Application
Step 1. Open the appropriate low-voltage breaker(s) and remove fuses to verify removal of control power and ac signals from the relay. Step 2. Isolate the relay TRIP control output. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 714: Table 10.8 Communications Port Commands That Clear Relay Buffers
Step 4. Apply power to the relay (see Connecting and Applying Power). The green ENABLED LED on the front panel will illuminate. Step 5. Use an SEL Cable C234A to connect a serial terminal to the relay. Step 6. Start the terminal (usually a PC with terminal emulation software).
Page 715 Acceptance Testing SEL performs detailed acceptance testing on all new relay models and versions. We are certain that your relay meets published specifications. Even so, you can perform acceptance testing on a new relay model to become familiar with the relay operating theory and settings;...
Page 716: Section 11: Testing And Troubleshooting Testing Philosophy
Test all protection elements and logic functions critical to your intended application. Commissioning SEL performs a complete functional check and calibration of each relay before shipment so that your relay operates correctly and accurately. You Testing should perform commissioning tests to verify proper connection of the relay to the power system and all auxiliary equipment.
Page 717: Test Precautions
SEL recommends that you limit maintenance tests on SEL relays according to the guidelines listed in Table 11.3. You will spend less time checking relay operations that function correctly. You can use the time you save to analyze event data and thoroughly test systems needing more attention.
Page 718: Test Mode
If you remove PLT04 from the Output settings, the relay may issue a trip to a breaker during testing. If Test Mode is not used, then external test switches must be used to isolate the relay outputs from control circuits during testing. SEL-411L Relay Protection Manual Date Code 20151029...
Page 719 With the default settings, you can also terminate the test by pressing the front- panel pushbutton labeled RELAY TEST MODE. For security reasons, the E87L setting and the 87TMSUP setting supervise the TEST 87L command. Relay Word bit 87TMSUP asserts when the 87TMSUP SEL control equation OGIC asserts to a logical 1.
Page 720: Testing Features And Tools
Use the low-level test interface to apply reduced-scale test quantities from the SEL-4000 Relay Test System; you do not need to use large power amplifiers to perform relay testing.
Page 721 2 kHz, and the raw binary data (prior to debounce timer conditioning) is 1 kHz to 8 kHz (depending on your setting). You can use the SEL-5601 available in high-resolution Analytic Assistant or other COMTRADE viewing program to export and view oscillography (see Figure 8.1).
Page 722: Figure 11.1 87Tout Logic
Communications Manual. For more information on IEC 61850, see Section 5: result of a TEST DB2 override, for example, a bit used to trip a breaker IEC 61850 Communications in the Communications Manual. on a remote relay via IEC 61850 GOOSE. SEL-411L Relay Protection Manual Date Code 20151029...
Page 723 Never apply voltage signals greater than 6.6 Vp-p about returning this device and related SEL equipment for service. sinusoidal signal (2.33 Vrms) to the low-level test interface. To use the low-level test interface, perform the following steps: Step 1.
Page 724: Table 11.5 Uut Database Entries For Sel-5401 Relay Test System Software-5 A Relay
Testing Features and Tools Main Board Processing Module Tests Use signals from the SEL-4000 Low-Level Relay Test System to test the relay processing module. Apply appropriate signals to the low-level test interface J12 from the SEL-4000 Relay Test System (see Figure 11.2). These signals simulate power system conditions, taking into account PT ratio and CT ratio scaling.
Page 725: Relay Test Connections
(commissioning test). In the latter case, each of the relay test sources would typically be GPS synchronized. The test requires that communications are established between each of the relays in the zone. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 726: Figure 11.3 Test Connections For The Multiterminal 87L Test
Voltage and Current Test Source Network Test Point Communications Three-Phase Voltage and Current Test Source Test Point Three-Phase Voltage and Current Test Source Test Point Figure 11.3 Test Connections for the Multiterminal 87L Test SEL-411L Relay Protection Manual Date Code 20151029...
Page 727: Figure 11.4 Test Connections For The Single-Terminal 87L Test
Current Test Source Local Current Remote Current Test Connections for 87LB Test Point Three-Phase Current Test Source Remote Current Local Current Test Connections for 87LC Figure 11.4 Test Connections for the Single-Terminal 87L Test Date Code 20151029 Protection Manual SEL-411L Relay...
Page 728: Test Methods
The tests and procedures in the following subsections are for 5 A relays. Scale values appropriately for 1 A relays. Once you have completed a test, return the relay settings that you modified for the test to default or operational values. SEL-411L Relay Protection Manual Date Code 20151029...
Page 729: Table 11.7 Phase Instantaneous Overcurrent Pickup
You will see the 50P1 element status change to 1 when the input current exceeds the 50P1P setting threshold. c. Type <Ctrl+X> to stop the relay from presenting the target display before completion of the 1000 target repeats. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 730: Figure 11.7 Viewing Relay Word Bits From The Front-Panel Lcd
ROW 30 ROW 31 67P4 BSYNBK2=0 67P3 SLOW2 67P2 FAST2 67P1 25A2BK2=0 50P4 25A1BK2=0 50P3 25W2BK2=0 50P2 25W1BK2=0 50P1 SEARCH PRESS to search Figure 11.7 Viewing Relay Word Bits From the Front-Panel LCD SEL-411L Relay Protection Manual Date Code 20151029...
Page 731 Step 2. Click the Outputs > Interface Board Outputs branch of the QuickSet Settings tree structure to view output ERATOR settings (shown in Figure 11.8). The Interface Board Outputs dialog box appears. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 732 Group Select dialog box in Figure 11.9. b. Click the Output check box. c. Click OK. The relay responds with the Transfer Status dialog box in Figure 11.9. SEL-411L Relay Protection Manual Date Code 20151029...
Page 733: Checking Relay Operation
The following checks are valuable for confirming proper relay connections and operation. ➤ AC connection check (metering) ➤ Commissioning tests ➤ Functional tests ➤ Element verification Date Code 20151029 Protection Manual SEL-411L Relay...
Page 734: Table 11.9 Tap Values Of The Four Terminals
6 A injected into the X input results in 1 pu current within the relay. Table 11.9 shows the tap values of the four terminals in the example. Table 11.9 Tap Values of the Four Terminals Relay Input SEL-411L Relay Protection Manual Date Code 20151029...
Page 735 11. Confirm that the A-phase element is picked up. 12. Increase the local A-phase current until the element drops out. 13. Confirm that the dropout value is  ------------------------- - Equation 11.2 87LPR S   DROPOUT Date Code 20151029 Protection Manual SEL-411L Relay...
Page 736 5. Begin the test with no current injected at any terminal. 6. Inject a balanced three-phase current with an ACB rotation at the local terminal. Increase the magnitude until the Q element operates. SEL-411L Relay Protection Manual Date Code 20151029...
Page 737 22. For three- and four-terminal applications repeat Step 5–Step 21 using other relays as the remote terminal. 23. Repeat Step 1–Step 21 using other relays as the local terminal. 24. Use the TEST 87L command to exit Test Mode. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 738 17. Inject a zero-sequence current with a magnitude equal to the minimum pickup (Step 7) at a remote terminal. Adjust the phase angle at this terminal to be 180 degrees out-of-phase with the local terminal. SEL-411L Relay Protection Manual Date Code 20151029...
Page 739 8. Inject a current with a magnitude equal to the minimum pickup (Step 6) into A-phase. 9. Inject a current with a magnitude equal to the minimum pickup (Step 6) into B-phase. This simulates current at the remote Date Code 20151029 Protection Manual SEL-411L Relay...
Page 740: Figure 11.10 Single-Terminal Test
For example, assume that the system shown in Figure 11.11 is experiencing a high-packet loss alarm. A loopback test is carried out at Relay 1 by applying a loopback at Terminal 1. During this test, SEL-411L Relay Protection Manual Date Code 20151029...
Page 741: Figure 11.11 System Under Loopback Testing
Be sure to apply the test current to the proper input set (IW or IX), according to the Global Current and Voltage Source Selection settings (ESS and ALINEI, for example) to accept the input. See Current and Voltage Source Selection on page P.3.106 for more information. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 742 Be sure to isolate the relay Step 1. Configure the relay. from the power system to avoid unexpected system effects. a. Start QuickSet and read the present ERATOR configuration in the relay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 743: Figure 11.12 Negative-Sequence Instantaneous Overcurrent Element Settings: Ac Sel Erator Quickset
The relay responds with the Transfer Status dialog box similar to Figure 11.13. If you see no error message, the new settings are loaded in the relay. Figure 11.13 Uploading Group 1 Settings to the Relay Date Code 20151029 Protection Manual SEL-411L Relay...
Page 744: Figure 11.14 Element Search Screen
F32P/R32P. Whenever the negative- sequence directional element asserts, the phase directional element asserts. The relay also contains a ground directional element, F32G/R32G, for directional control of the ground distance elements and ground overcurrent elements. SEL-411L Relay Protection Manual Date Code 20151029...
Page 745 Equation 11.17 TEST For a reverse fault impedance threshold, where Z2c = Z2R, Equation 11.14 becomes: ------------ - ------------ - TEST Equation 11.18 when the angle calculation is the same as Equation 11.17. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 746 Z2R is 4.00, a2 is 0.10, and k2 is 0.2. The dialog box is dim since there are no settings to change. The relay calculates these numeric settings automatically because E32 is set to AUTO. SEL-411L Relay Protection Manual Date Code 20151029...
Page 747: Table 11.10 Negative-Sequence Directional Element Settings Auto Calculations
Press ENT to go to the submenu of ELEMENT SEARCH Figure 11.14. d. Enter characters in the text input field using the navigation keys. e. Highlight and press ENT to enter the character. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 748 Be sure to satisfy all the element supervisory conditions before testing a relay element. For supervisory conditions for a particular element, see Mho Ground-Distance Elements on page P.3.178. SEL-411L Relay Protection Manual Date Code 20151029...
Page 749: Figure 11.17 Finding Phase-To-Phase Test Quantities
2 • 2.5 • 9.36 = 46.8 V Equation 11.22 90˚ θ = 150˚ β 1 = 30˚ ± 180˚ 0˚ β 2 = 30˚ φ = –150˚ V BC –90˚ Figure 11.17 Finding Phase-to-Phase Test Quantities Date Code 20151029 Protection Manual SEL-411L Relay...
Page 750 Step 3. Set the phase distance element reach. a. Select the Phase Distance button of the ERATOR QuickSet Settings tree view. b. Confirm the settings of E2IMP at 3, Z1MP at 6.24, and Z2MP at 9.36. SEL-411L Relay Protection Manual Date Code 20151029...
Page 751 I b. Observe the LCD screen. RELAY ELEMENT |  2.5 A, Relay Word bit MBC2 asserts when |I indicating that the relay impedance calculation is less than the Z2MP reach setting. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 752: Relay Self-Tests
HALARMA. HALARMP does not assert again for the same alarm condition, unless the condition is cleared and returns. The SEL-411L will restart on certain diagnostic failures. When this occurs, the relay will log a in the SER. See Appendix A: Diagnostic Restart Firmware and Manual Versions for affected firmware revisions.
Page 753: Figure 11.18 Relay Status: Ac Sel Erator Quickset Hmi
Take preventive action early during the development of potential problems to avoid system failures. For any status failure, contact your Technical Service Center or the SEL factory immediately (see Factory Assistance). The relay generates an automatic status report at the serial ports for a self-test status failure if you set Port setting AUTO := Y.
Page 754: Figure 11.19 Relay Status From A Status A Command On A Terminal
➤ x is text in the FID (Firmware ID) string ➤ (description) is text that the relay supplies ➤ (Ok or W or F) is normal, warning, or failure, respectively SEL-411L Relay Protection Manual Date Code 20151029...
Page 755: Table 11.12 Overall Status Section
Channel Configuration and Status Configuration of a particular channel or a problem with the channel itself may be verified in this section (the relay configuration matches the application). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 756: Table 11.13 Channel Configuration And Status Section
40 seconds. Increasing packet loss is an indication of a failing channel. Applicable to dual redundant channel applications. Channel Statistics These measurements provide longer-term indications on the health of the 87L communications and may be used to identify transient problems. SEL-411L Relay Protection Manual Date Code 20151029...
Page 757: Relay Troubleshooting
ASCII Command Reference for details on relay commands and Section 5: Settings for details on relay settings. NOTE: To ensure proper communication and protection, please refer to the firmware compatibility in Table A.2. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 758: Table 11.15 Troubleshooting Procedures
Arrow and Down Arrow pushbuttons to adjust contrast. Status Failure Notice on Front Panel Self-test failure. Contact the SEL factory or your Technical Service Center. The OUT108 relay control output b contacts will be closed if you programmed NOT HALARM to OUT108 (see Alarm Output on page P.2.34).
Page 759 Remove relay power. Remove the control output burned closed. connection. Check continuity; a contacts will be open and b contacts will be closed. Contact the SEL factory or your Technical Service Center if continuity checks fail. I/O interface board failure. LCD displays STATUS FAILURE screen.
Page 760: Factory Assistance
10 years if the relay is energized. Factory Assistance We appreciate your interest in SEL products and services. If you have any questions or comments, please contact us at: Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163-5603 U.S.A.
Page 761: Section 12: Bay Control
With the bay control, you can control as many as 10 disconnects (m = 01–10) and 2 circuit breakers. You can operate OGIC ® disconnects and breakers with ASCII commands, SEL control equations, Fast Operate Messages, and from the one-line diagram on the front- panel screen.
Page 762: Circuit Breaker Status Logic
Use the seal-in timers (89CSTm and 89OSTm) to monitor and control disconnect operations. All disconnect control methods (HMI, ASCII, control equations, and Fast Operate) drive the close and open OGIC control logic in the relay. SEL-411L Relay Protection Manual Date Code 20151029...
Page 763: Figure 12.1 Disconnect Switch Close Logic
Relay Word bit 89OPEm is an input to the disconnect close logic. 89CBLm, 89OBLm The 89CBLm and 89OBLm SEL control equations provide an alternative OGIC customizable method for blocking the initiation of a disconnect switch open or close command, respectively.
Page 764 1. When the LOCAL Relay Word bit asserts, only the HMI commands (89CCMm and 89OCMm) can initiate close and open operations. When the LOCAL Relay Word bit is deasserted, the 89CC, 89OC, SEL OGIC disconnect close/open, and Fast Operate disconnect CLOSE/OPEN commands can perform disconnect close and open operations.
Page 765 Disconnect Switch Close and Open Control Logic Output 89CLSm, 89OPENm The 89CLSm and 89OPENm Relay Word bits are used in SEL output OGIC equations to perform close and open disconnect switch operations.
Page 766 Figure 12.3. SEL control equation OGIC 89AMm is the input for the normally open a auxiliary contact, and SEL OGIC control equation 89BMm is the input for the normally closed b auxiliary contact. For the status and alarm logic to function correctly, wire the a and b contacts each to separate inputs on the relay.
Page 767 89OPNm Figure 12.3 Disconnect Switch Status and Alarm Logic Disconnect Switch Status and Alarm Logic Inputs 89AMm, 89BMm The 89AMm and 89BMm SEL control equations represent the normally OGIC open and normally closed disconnect switch auxiliary contacts. Typically, these are set to relay inputs that are wired to the auxiliary contacts.
Page 768 The scenario in which both 89AMm and 89BMm are asserted simultaneously would occur on a rare disconnect switch failure or a short-circuited auxiliary contact wire connection. When this condition occurs for 89ALPm seconds, the 89ALm alarm status output will assert. SEL-411L Relay Protection Manual Date Code 20151029...
Page 769: Figure 12.4 Close Immobility Timer Logic
LOCAL Relay Word bit is asserted, in other words, the LOCAL Relay Word bit prevents control from the HMI without proper supervision. 89CBLm, 89OBLm The 89CLBLm and 89OPBLm SEL control equations provide an OGIC alternative customizable method for blocking the initiation of a disconnect switch OPEN or CLOSE command, respectively.
Page 770 The LOCAL Relay Word bit must be deasserted for the SEL close or open to initiate a disconnect OGIC switch operation. Use care when using SEL control equations for OGIC disconnect switch operations; this disconnect operate method is not supervised by the breaker jumper or appropriate relay access levels as is the case with other disconnect operation methods.
Page 771 Set the seal-in timer 10–15 percent longer than the expected disconnect operate time to allow for slow disconnect operation times caused by cold temperatures or low battery voltages. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 772: Figure 12.6 Disconnect In Transition
Time Setting Undetermined State 89CSITm Seal-In Timer Figure 12.6 Disconnect in Transition When the normally closed auxiliary contact (SEL input 89BMm) OGIC deasserts, the disconnect switch is in an undetermined state. No proper position indication from either of the disconnect switch auxiliary contacts (89BMm or 89AMm) is available.
Page 773: Bay Control Front-Panel Operations
When you first select the one-line diagram, none of the apparatus on the one-line diagram are highlighted. Press a Left Arrow or Right Arrow pushbutton to enter the one-line diagram and highlight the apparatus in the Date Code 20151029 Protection Manual SEL-411L Relay...
Page 774: Table 12.1 Circuit Breaker And Disconnect Switch Definitions
➤ Intermediate, highlighted Table 12.2 describes how the one-line diagram represents the different states of the breakers, and how highlighting the breaker affects the display of the symbol. SEL-411L Relay Protection Manual Date Code 20151029...
Page 775: Table 12.2 Circuit Breaker State Representations
Table 12.3 Disconnect Switch State Representations (Sheet 1 of 2) Asserted Apparatus Position Symbol Relay Word Bit Disconnect open, not highlighted 89OPNm Disconnect closed, not highlighted 89CLm Disconnect open, highlighted 89OPNk Disconnect closed, highlighted 89CLm Date Code 20151029 Protection Manual SEL-411L Relay...
Page 776 LOCAL Relay Word bit is not asserted when the ENT pushbutton is pressed, the relay displays the screen in Figure 12.8 (c) for four seconds and then returns to the screen in Figure 12.8 (a). SEL-411L Relay Protection Manual Date Code 20151029...
Page 777: Figure 12.8 Screens For Circuit Breaker Selection
If this condition lasts for longer than 1.5 seconds, the HMI displays the pole discrepancy screen shown in Figure 12.9 (c) so that the operator can immediately identify the offending Date Code 20151029 Protection Manual SEL-411L Relay...
Page 778: Figure 12.9 Screens During A Pole-Discrepancy Condition
Figure 12.10 (b). If the LOCAL Relay Word bit is not asserted when the ENT pushbutton is pressed, the relay displays screen in Figure 12.10 (c) for four seconds and then returns to the screen in Figure 12.10 (a). SEL-411L Relay Protection Manual Date Code 20151029...
Page 779: Figure 12.10 Screens For Disconnect Switch Selection
Relay Word bit 89OPN01 is asserted, the text has a box drawn around it. OPEN DISCONNECT To close the disconnect switch, use the Up Arrow or Down Arrow pushbutton to highlight the text. CLOSE DISCONNECT Date Code 20151029 Protection Manual SEL-411L Relay...
Page 780 Immobility Timer Logic for more information regarding the close and open immobility timer logic. When the disconnect operation completes successfully, the relay displays the screen in Figure 12.13 (b) until the front-panel timer times out or the ESC pushbutton is pressed. SEL-411L Relay Protection Manual Date Code 20151029...
Page 781: Figure 12.11 Hmi Disconnect Operation Initiation
OPEN DISCONNECT screen (d) is CLOSE DISCONNECT displayed CLOSE DISCONNECT CLOSE COMMAND ISSUED *NOT ALLOWED* IN PROGRESS NO LOCAL CONTROL (c) Disconnect Control Screen (d) Disconnect Control Screen Figure 12.11 HMI Disconnect Operation Initiation Date Code 20151029 Protection Manual SEL-411L Relay...
Page 782: Figure 12.12 Hmi Disconnect Operation In Progress
Figure 12.11 (a). This is the initial screen for an open-to-close operation. If Relay Word bit 89CLm is asserted, the relay displays the screen in Figure 12.13 (b). This is the initial screen for a close-to-open operation. SEL-411L Relay Protection Manual Date Code 20151029...
Page 783: Figure 12.13 Hmi Disconnect Operation Completed
BAYNAME BUS 1 BUS 2 I:9999A V:99999kV P:99999MW Q:99999MV NAVIG Figure 12.14 Bay Control One-Line Diagram With Three-Position Disconnect Open Date Code 20151029 Protection Manual SEL-411L Relay...
Page 784: Table 12.4 Three-Position Disconnect Switch State Representations
Likewise, Figure 12.15 (c) shows the control screen of a three-position disconnect with the in-line disconnect open and the ground disconnect closed. SEL-411L Relay Protection Manual Date Code 20151029...
Page 785: Table 12.5 Three-Position Disconnect Switch Control Screen Status And Control Options
Disconnect SW4: Open OPENED OPEN SW3 OPEN SW3 CLOSE NO CONTROL for SW4 Disconnect SW3: Open OPENED CLOSE NO CONTROL for SW3 Disconnect SW4: Closed CLOSED OPEN SW4 OPEN SW4 CLOSE SW4 CLOSE SW4 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 786 Up Arrow or Down Arrow pushbutton to move the highlight box to the CLOSE SW4 position and press the ENT pushbutton to close Disconnect SW4. If disconnect SW4 is successfully closed the control screen will change as show in Figure 12.15 (c). SEL-411L Relay Protection Manual Date Code 20151029...
Page 787: Figure 12.16 Bay Control One-Line Diagram With Three-Position Disconnect Closed In-Line
QuickSet ERATOR software program that you use to set the relay. Should your application require different bay mimic screens with three-position disconnects, contact SEL and we will provide you with the applicable screens at no charge. QuickSet SEL-5030 Software Bay...
Page 788: Figure 12.17 Example Application
P.12.28 Bay Control QuickSet SEL-5030 Software Bay Control Screens ERATOR Busbar 1 Busbar 2 Disconnect 1 Disconnect 2 Breaker Disconnect 3 Figure 12.17 Example Application In order to configure this bay, you need to select the appropriate busbar one- line screen (MIMIC).
Page 789: Figure 12.19 Illustration Of Local And Remote Control Logic With Key Control
Bay Control P.12.29 QuickSet SEL-5030 Software Bay Control Screens ERATOR Bay Name There are 20 characters available for the bay name, so use descriptive names such as OCEANVIEW FEEDER. This name appears on all the control screens to identify the feeder bay, thus avoiding confusion during operation.
Page 790: Figure 12.20 Busbar Label
P.12.30 Bay Control QuickSet SEL-5030 Software Bay Control Screens ERATOR Figure 12.20 Busbar Label Disconnect Next to each disconnect is a box with its default HMI name. Click in the box next to the D1 disconnect (to set Disconnect 1), the form shown in Assignments Figure 12.21 appears, showing all the D1 disconnect settings.
Page 791: Ac Sel Erator Quickset Sel-5030 Software Bay Control Screens
Bay Control P.12.31 QuickSet SEL-5030 Software Bay Control Screens ERATOR Figure 12.21 Disconnect 1 Settings Disconnect HMI Name Label. With D1 selected on the interactive settings screen, enter a disconnect name to be displayed on the HMI (see Figure 12.21). The number of characters is limited to a maximum string width of 17 pixels, so keep the name short.
Page 792 ERATOR Disconnect Switch Status. Wire the normally open and normally closed auxiliary contacts from each disconnect switch to relay inputs, and program the relay inputs into 89AM01 and 89BM01 SEL control equations. The OGIC 89AM01 and 89BM01 SEL control equations report the state of the OGIC disconnect switch auxiliary contacts.
Page 793 Bay Control P.12.33 QuickSet SEL-5030 Software Bay Control Screens ERATOR Disconnect Close/Open Immobility Timers. The close/open immobility timers are triggered at the same time as the seal-in timers, and assert only to report a disconnect switch failure to start moving out of its initial open/close position.
Page 794: Figure 12.22 Breaker 1 Settings
P.12.34 Bay Control QuickSet SEL-5030 Software Bay Control Screens ERATOR Figure 12.22 Breaker 1 Settings Breaker 1 HMI Name Label. HMI name is limited to a maximum of 17 pixels and serves to identify the equipment, i.e., breaker and disconnects.
Page 795: Figure 12.24 Analog Quantity Setting Form
Bay Control P.12.35 QuickSet SEL-5030 Software Bay Control Screens ERATOR Click on analog display label in the interactive one-line diagram to MDELE1 display the form shown in Figure 12.24. Click the Expression Builder button to the right of the dialog box to display the form in Figure 12.25. The Expression Builder helps create the analog quantity setting string.
Page 796: Figure 12.27 Analog Quantity Expression Mdele3
P.12.36 Bay Control QuickSet SEL-5030 Software Bay Control Screens ERATOR Figure 12.27 Analog Quantity Expression MDELE3 Do not enter values for the other analog quantities. Front-Panel Settings Selectable Screens for the Front-Panel Rotating Display You can include the bay control screen in the rotating display. Set ONELINE = Y (found under Front Panel settings), selectable screens, as shown in Figure 12.28.
Page 797: Predefined Bay Control One-Line Diagrams
Figure 12.46–Figure 12.47: Ring Bus one-line diagram ➤ Figure 12.48–Figure 12.51: Double Bus Double Breaker one- line diagram ➤ Figure 12.52: Source Transfer Bus one-line diagram ➤ Figure 12.53–Figure 12.54: Throw-Over Bus one-line diagram Date Code 20151029 Protection Manual SEL-411L Relay...
Page 798: Figure 12.30 Bay With Ground Switch (Option 1)
AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.30 Bay With Ground Switch (Option 1) BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.31 Bay Without Ground Switch (Option 2) SEL-411L Relay Protection Manual Date Code 20151029...
Page 799: Figure 12.32 Tie Breaker Bay (Option 3)
Figure 12.32 Tie Breaker Bay (Option 3) Bus 1, Bus 2, and Transfer Bus BAYNAME BUSNAM1 BUSNAM2 BUSNAM3 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.33 Bay With Ground Switch (Option 4) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 800: Figure 12.34 Bay Without Ground Switch (Option 5)
AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.34 Bay Without Ground Switch (Option 5) Transfer Bay BAYNAME BUSNAM1 BUSNAM2 BUSNAM3 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.35 Transfer Bay (Option 6) SEL-411L Relay Protection Manual Date Code 20151029...
Page 801: Figure 12.36 Tie Breaker Bay (Option 7)
AQ_5 AQ_6 NAVIG Figure 12.36 Tie Breaker Bay (Option 7) Main Bus and Transfer Bus BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.37 Bay With Ground Switch (Option 8) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 802: Figure 12.38 Bay Without Ground Switch (Option 9)
AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.38 Bay Without Ground Switch (Option 9) Main Bus BAYNAME BUSNAM1 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.39 Bay With Ground Switch (Option 10) SEL-411L Relay Protection Manual Date Code 20151029...
Page 803: Figure 12.40 Bay Without Ground Switch (Option 11)
AQ_4 AQ_5 AQ_6 NAVIG Figure 12.40 Bay Without Ground Switch (Option 11) Breaker-and-a-Half BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.41 Left Breaker Bay With Ground Switch (Option 12) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 804: Figure 12.42 Right Breaker Bay With Ground Switch (Option 13)
Bay Control Predefined Bay Control One-Line Diagrams BAYNAME BUSNAM1 BUSNAM2 NAVIG Figure 12.42 Right Breaker Bay With Ground Switch (Option 13) BAYNAME BUSNAM1 BUSNAM2 BAYLAB1 BAYLAB2 NAVIG Figure 12.43 Middle Breaker Bay (Option 14) SEL-411L Relay Protection Manual Date Code 20151029...
Page 805: Figure 12.44 Left Breaker Bay Without Ground Switch (Option 15)
AQ_5 AQ_6 NAVIG Figure 12.44 Left Breaker Bay Without Ground Switch (Option 15) BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.45 Right Breaker Bay Without Ground Switch (Option 16) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 806: Figure 12.46 Bay With Ground Switch (Option 17)
AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.46 Bay With Ground Switch (Option 17) BAYNAME BAYLAB1 BAYLAB2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.47 Bay Without Ground Switch (Option 18) SEL-411L Relay Protection Manual Date Code 20151029...
Page 807: Figure 12.48 Left Breaker Bay With Ground Switch (Option 19)
AQ_5 AQ_6 NAVIG Figure 12.48 Left Breaker Bay With Ground Switch (Option 19) BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.49 Left Breaker Bay Without Ground Switch (Option 20) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 808: Figure 12.50 Right Breaker Bay With Ground Switch (Option 21)
AQ_5 AQ_6 NAVIG Figure 12.50 Right Breaker Bay With Ground Switch (Option 21) BAYNAME BUSNAM1 BUSNAM2 AQ_1 AQ_2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.51 Right Breaker Bay Without Ground Switch (Option 22) SEL-411L Relay Protection Manual Date Code 20151029...
Page 809: Figure 12.52 Source Transfer (Option 23)
AQ_2 AQ_5 AQ_3 AQ_6 BAYLAB1 NAVIG Figure 12.52 Source Transfer (Option 23) Throw-Over Bus BAYNAME AQ_1 BUS1 AQ_2 BUS2 AQ_3 AQ_4 AQ_5 AQ_6 NAVIG Figure 12.53 Throw-Over Bus Type 1 Switch (Option 24) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 810: Figure 12.54 Throw-Over Bus Type 2 Switch (Option 25)
Figure 12.55 shows an example station with a breaker- and-a-half application. Screen 1 BKR1 CT T 2 CT CT2 T Common Area BKR2 R R 2 2 BKR3 BKR3 Screen 2 Figure 12.55 Screen 1 SEL-411L Relay Protection Manual Date Code 20151029...
Page 811 ➤ Screen 1 plus the common area (Figure 12.55) ➤ Screen 2 plus the common area (Figure 12.56) When you specify a custom screen, be sure to separately specify these three areas. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 812: Figure 12.57 Different Types Of Circuit Breakers And Disconnects
3-Position Disconnect, Closed to Ground Figure 12.57 Different Types of Circuit Breakers and Disconnects Available Power Figure 12.58 shows the different types of power system components available. System Components Figure 12.58 Different Types of Power System Components SEL-411L Relay Protection Manual Date Code 20151029...
Page 813: Section 13: Time-Synchronized Measurements
IRIG-B The relay has two input connectors that accept IRIG-B (Inter-Range Instrumentation Group-B) demodulated time-code format: the IRIG-B pins of Serial Port 1, and the IRIG-B BNC connector—see TIME Inputs on page P.2.9. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 814: Table 13.1 Relay Timekeeping Modes
TIRIG = logical 1 TSOK = logical 0 TSOK = logical 0 TSOK = logical 1 The internal clock in the relay can be synchronized via SNTP, DNP3, Ethernet card, SEL-2030 Communications Processor, or M communications. IRRORED The time source must include the IEEE C37.118 IRIG-B control bit assignments to provide the Time Error estimate for the clock.
Page 815: Figure 13.1 Time Bnc Connector
Figure 13.2 Confirming the High-Accuracy Timekeeping Relay Word Bits b. The TIRIG and TSOK Relay Word bits should be asserted (logical 1), indicating that the relay is in the high-accuracy IRIG timekeeping mode (HIRIG). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 816: Figure 13.3 Results Of The Time Q Command
TIME Q Descriptions The TIME Q command provides details about relay timekeeping (see Figure 13.3). The internal clock of the relay is initially calibrated at the SEL factory. An external IRIG source is required to eliminate clock drift. For high- accuracy timekeeping functions such as synchrophasor measurement, the connected clock must support IEEE C37.118—Annex F, IRIG-B control bit...
Page 817: Table 13.2 Date/Time Last Update Sources
Variable) to monitor time keeping status. OGIC PSV01 asserts when the relay is synchronized to the HIRIG source. A departure from this condition asserts the relay alarm output (OUT108 for this application example). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 818 Step 5. Enter the two lines of SEL control equation programming OGIC in the Protection Free-Form Logic Settings shown in Figure 13.4. Comments begin with the # character (see Fixed SEL OGIC Control Equations on page P.14.4). SEL-411L Relay Protection Manual...
Page 819: Figure 13.5 Setting Out108 In Ac Sel Erator Quickset
In the OUT208 Interface Board Outputs text box, enter the OR NOT PSV01 condition to the preexisting OUT208 := NOT (SALARM OR HALARM) equation, as shown in Figure 13.5. Figure 13.5 Setting OUT108 in QuickSet ERATOR Date Code 20151029 Protection Manual SEL-411L Relay...
Page 820: Figure 13.6 High-Accuracy Timekeeping Connections
These settings cause the relay to initiate a data capture at be used to capture synchrophasor OGIC ® data at a specific time, if 12:00:30 p.m. Use other SEL control equations in a similar manner to synchrophasors are enabled with trigger relay event recordings.
Page 821 Protection control equation row entry field to start the OGIC Expression Builder. b. On the left side of the SEL control equation, select OGIC Math Variables and double-click PMV64. c. On the right side of the equation, select Analog Quantities >...
Page 822: Figure 13.7 Setting Pmv64 With The Expression Builder Dialog Box
Click the Trip Logic and ER Trigger branch. You will see the Trip Logic and ER Trigger Settings dialog box. Step 8. Click in the ER Event Report Trigger Equation (SEL OGIC text box and add OR R_TRIG PSV02 to the end of elements already in this SEL control equation.
Page 823: Fault Analysis
Figure 13.8 shows an example of a 230 kV overhead Measurements transmission line with a relay at each terminal. Connect GPS clocks (such as the SEL-2407) at each substation to provide very high-accuracy time signal inputs for each relay. S (Harvard)
Page 824 This page intentionally left blank...
Page 825: Ogic
OGIC and capabilities not included in SEL-300 series relays. The new features with a brief description are listed in Table 14.1. Table 14.1 Advanced SEL Control Equation Features...
Page 826: Separation Of Protection And Automation Areas
OGIC Separation of Protection and Automation Areas methods. Table 14.2 is a summary that compares SEL control equation OGIC programming in SEL-351 series relays and SEL-311 series relays with the SEL-400 series. Table 14.2 SEL Control Equation Programming Summary OGIC...
Page 827: Sel Ogic Control Equation Programming
SCADA master to supervise automated control of a motor-operated disconnect in the substation. Control Equation Programming OGIC There are two major areas where the relay uses SEL control equations. OGIC First, fixed SEL control equations define the operation of fixed protection OGIC elements or outputs.
Page 828 Control Fixed result SEL control equations are equations in which the left side OGIC OGIC (result storage location), or LVALUE, is fixed. Programming in SEL-300 Equations series relays consists of all fixed SEL control equations. Fixed equations OGIC include protection and output settings that you set with SEL...
Page 829 OGIC control equation programming. There are two ways to indicate a OGIC comment. One way is to start a comment anywhere in a SEL control OGIC equation with the # character. The comment then continues to the end of the line.
Page 830: Sel Ogic Control Equation Setting Structure
Second, there is a free-form programming area for more sophisticated automation SEL control equation programming. OGIC Third, there is a fixed area for relay output programming. The SEL OGIC control equation programming areas are shown in Figure 14.2. There are also a small number of fixed SEL...
Page 831 Because the pulsed remote bit and protection processing both operate within the same processing interval, the use of pulsed remote bits is reliable and deterministic. Special conditioning is applied to remote bits within automation SEL OGIC Because automation logic is not deterministic, and its processing interval...
Page 832: Multiple Setting Groups
10 blocks. The relay executes each block sequentially from the first block to the last. You do not need to fill a block completely or enter any equations in a block before starting to write SEL OGIC control equations in the following blocks.
Page 833 Active Setting Group The Global settings class contains the SEL control equation settings OGIC SS1–SS6, as shown in Table 14.4. Selection Table 14.4 Definitions for Active Setting Group Switching SEL Control OGIC NOTE: The settings group switching Equation Settings SS1–SS6 settings are checked once per cycle.
Page 834: Sel Ogic Control Equation Capacity
(LB01–LB32), remote bit (RB01–RB32), and latch bit (PLT01–PLT32) states are retained during an active setting group change. The output contacts do not change state until the relay enables in the new settings group and the SEL OGIC control equations are processed to determine the output contact status for the new group.
Page 835: Sel Ogic Control Equation Elements
The relay provides storage space for as many as 250 lines of protection free- form programming. Because the relay executes protection fixed and free-form logic at a deterministic interval, there is a limit to the amount of SEL OGIC control equation programming that the relay can execute. The relay calculates total capacity in terms of settings capacity and execution capacity.
Page 836: Table 14.6 First Execution Bit Operation On Power-Up
Counters Counters that count rising edges of Boolean value inputs Relay Word Bits and Data within the relay are available for use in SEL control equations. OGIC Relay Word bits are binary data that include protection elements, input status, Analog Quantities and output status.
Page 837: Table 14.7 First Execution Bit Operation On Automation Settings Change
ASV001–ASV256 OGIC Use the SEL control equation variables in free-form logic statements in OGIC any order you want. Use a SEL control equation variable more than once OGIC in free-form logic programming, and use SEL control equation variables OGIC as arguments in SEL control equations.
Page 838: Table 14.10 Sel Ogic Control Equation Math Variable Quantities
PMV09 := 5 + VAFM # Store sum of 5 and A-phase voltage in kV in PMV09 You can use SEL control equation math variables more than once OGIC in free-form programming. Use AMV010 in the following SEL OGIC control equations to calculate intermediate results. # Determine if any phase voltage is greater than 13 kV...
Page 839: Table 14.11 Latch Bit Quantities
Set and Reset in each protection settings group. While each protection latch value remains unchanged for a change in the active protection settings group, you can enter different Set and Reset programming for each protection settings group. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 840 BK1MTR := PSV32 # Remote manual trip RB02 supervised with RB01 enable BK1MCL := PSV33 # Remote manual close RB02 supervised with RB01 enable Evaluation of the latch bit value occurs at the end of the protection SEL OGIC control equation execution cycle. The values evaluated for Reset (PLTnnR)
Page 841: Table 14.13 Conditioning Timer Quantities
The relay evaluates the latch bit value at the end of the automation free-form control equation execution cycle. The values for Reset (ALTnnR) OGIC and Set (ALTnnS) remain unchanged until evaluation of all SEL control OGIC equations, when the relay evaluates the latch (ALTnn). For example, if you...
Page 842: Figure 14.3 Conditioning Timer With Pickup And No Dropout Timing Diagram
Input Changes Input Changes Dropout Time from 0 to 1 from 1 to 0 Expires PCT02IN PCT02Q Dropout Time PCT02DO Figure 14.5 Conditioning Timer With Dropout and No Pickup Timing Diagram SEL-411L Relay Protection Manual Date Code 20151029...
Page 843: Figure 14.6 Conditioning Timer With Pickup And Dropout Timing Diagram
PCT07PU := 5.3 # Pickup set to 5.3 cycles PCT07D0 := 6.0 # Dropout set to 6.0 cycles PCT07IN := IN201 # Operate on the first input on the interface board PSV29 := PCT07Q # Protection SEL control equation variable follows the OGIC...
Page 844: Table 14.15 Sequencing Timer Quantities
If your Pickup Time or OGIC Dropout Time equation is below the Input equation (has a higher expression line number), the relay will use the value calculated on the previous SEL OGIC control equation execution interval. Because the relay calculates the last value...
Page 845: Figure 14.8 Sequencing Timer Timing Diagram
EXAMPLE 14.8 Automation Sequencing Timer Programming The equations below are an example of programming for an automation sequencing timer, AST01. Each timer input is programmed as a separate statement in automation SEL control OGIC equation programming.
Page 846: Table 14.17 Counter Quantities
OGIC for the timer Reset (PSTnnR or ASTnnR) or Preset Time (PSTnnPT or ASTnnPT), the values for Reset and Preset Time that the relay uses are the last values that the relay calculates before the input SEL control equation OGIC calculation.
Page 847 OGIC enter an expression for the counter Reset (PCNnnR) or the counter Preset (PCNnnPV), the values for Reset and Preset that the relay uses are the last values the relay calculates before the input SEL control equation OGIC calculation. Because the relay uses the last values for Reset and Preset in this manner, we recommend for most applications that you enter the Preset, Reset, and Input statements together in the order shown in Example 14.9.
Page 848: Sel Ogic Control Equation Operators
# Assign the alias names with the SET T command. SET T. PMV01,THETA # Assign the alias “THETA” to PMV01. PMV02,TAN # Assign the alias “TAN” to PMV02. Use the alias names “THETA” and “TAN“ in a free-form SEL OGIC control equation: # Calculate the tangent of THETA.
Page 849: Table 14.19 Operator Precedence From Highest To Lowest
Relay Word bits, incoming control points, and SEL control equation elements within the relay. The operators are OGIC grouped into two types, according to the type of SEL control equation in OGIC which you can apply these operators.
Page 850: Table 14.21 Parentheses Operation In Boolean Equation
Value A NOT A Use AND to combine two Boolean values according to the truth table shown in Table 14.23. Table 14.23 AND Operator Truth Table Value A Value B A AND B SEL-411L Relay Protection Manual Date Code 20151029...
Page 851: Table 14.24 Or Operator Truth Table
OGIC PSV15 := R_TRIG (PSV01 AND PSV23) # Invalid statement, do not use Use a SEL control equation variable to calculate the quantity and OGIC then use the R_TRIG operation on the result, as shown below.
Page 852: Table 14.25 Comparison Operations
7.00 5.10 5.10 4.25 4.00 Math Operators Use math operators when writing math SEL control equations. Math OGIC control equations manipulate numerical values and provide a OGIC numerical base 10 result. Table 14.26 summarizes the operators available for math SEL control equations.
Page 853: Table 14.26 Math Operator Summary
– Negation Parentheses Use parentheses to control the order in which the relay evaluates math operations within a math SEL control equation. Also use parentheses to OGIC group expressions that you use as arguments to function operators such as SIN and COS.
Page 854 OGIC order and sequence of arithmetic operations. The relay uses IEEE 32-bit floating-point numbers to perform SEL OGIC control equation mathematical operations. If an operation results in a quantity that is not a numerical value, the SEL...
Page 855 EXP, and LOG operators. Use parentheses to delimit the argument of a LN, EXP, or LOG operation. EXAMPLE 14.16 Using the LN, EXP, and LOG Operators The free-form math SEL control equations below are examples of OGIC LN, EXP, and LOG operator usage.
Page 856 Arithmetic. Example 14.18 shows examples of ASIN and ACOS. Use parentheses to delimit the argument of an ASIN or ACOS operation. EXAMPLE 14.18 Using the ASIN and ACOS Operators The free-form math SEL control equations below are examples of OGIC ASIN and ACOS.
Page 857: Effective Programming
OGIC Effective Programming a FLOOR operation. Example 14.21 contains examples of the FLOOR operator. EXAMPLE 14.21 Using the FLOOR Operator The free-form math SEL control equations below show examples OGIC of the FLOOR operator usage. # FLOOR examples AMV001 := FLOOR (5.99) # Stores 5 in AMV001 AMV002 := FLOOR (–4.01) # Stores –5 in AMV002...
Page 858 OGIC and store these comments in the relay. Obtain comments to assist you in using the ASCII interface or SEL configuration software, regardless of whether you have the original files downloaded to the relay. Comments add structure to free-form programming environments such as Visual Basic, C, and free-form SEL control equations.
Page 859: Sel-311 And Sel-351 Series Users
Use the MET PMV and MET AMV commands to display the contents of the protection or automation math variables. SEL-311 and SEL-351 Series Users You can convert logic that you have used in SEL-311 series relays and SEL-351 series relays to logic for the SEL-400 series. In the SEL-300 series relays, SEL...
Page 860 Boolean operators in the SEL-400 series are OGIC different from those used in SEL-300 series relays. For example, if you wish to convert programming from an SEL-300 series relay for the SEL-400 series, you must convert the operators. Example 14.24 and Example 14.25 demonstrate conversion of several settings to the SEL-400 series setting.
Page 861 Control Equation Programming P.14.37 OGIC SEL-311 and SEL-351 Series Users In the SEL-400 series, use the format shown below. Protection free-form style settings: # Free-form programming conversion of latch bit PLT01S := RB04 # Set if RB04 PLT01R := RB05 # Reset if RB05...
Page 862 This page intentionally left blank...
Page 863: Section 15: Ascii Command Reference
ASCII command. Usually, most terminals and terminal programs interpret the <Enter> key as a <CR>. For example, to send the ACCESS command, type ACC <Enter>. For more information on SEL ASCII protocol, including handshaking, see Section 2: SEL Communications Protocols in the Communications Manual.
Page 864: Table 15.2 89Close N Command
Disconnect CLOSED ). See Disconnect Switch Close and Status Undetermined - check wiring Open Control Logic on page P.12.2. Use the 89CLSn Relay Word bit as part of a SEL Output control equation to close the appropriate disconnect OGIC switch.
Page 865: Table 15.3 89Open N Command
1, B, P, A, O, 2 BNAME The BNA command produces ASCII names of all relay status bits for Fast Meter Compressed ASCII. See Section 2: SEL Communications Protocols in the Communications Manual for more information on Fast Meter and the Compressed ASCII command set.
Page 866: Table 15.8 Bre N Command
BRE n H Display history data for the last 128 Circuit 1, B, P, A, O, 2 Breaker n operations. Parameter n = 1 or 2, representing Circuit Breaker 1 or Circuit Breaker 2. SEL-411L Relay Protection Manual Date Code 20151029...
Page 867: Table 15.12 Bre N P Command
Use the CAL command to gain access to Access Level C. See Access Levels on page P.10.6 for more information. Only go to Level C to modify the default password or under the direction of an SEL employee. The additional commands available at Level C are not intended for normal operational purposes.
Page 868: Table 15.16 Cbr Terse Command
CEVENT The CEVENT command provides a Compressed ASCII response similar to the EVENT command. See Section 2: SEL Communications Protocols in the Communications Manual for information on the Compressed ASCII command set. For detailed examples of the items in the Compressed ASCII event report, see CEVENT on page P.8.24.
Page 869: Table 15.19 Cev C Command
Compressed ASCII format. Table 15.22 CEV N Command Command Description Access Level CEV N Return the oldest unacknowledged event report with 1, B, P, A, O, 2 samples/cycle sampling in Compressed ASCII format. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 870: Table 15.23 Cev Nset Command
CEV n S Return a particular n event report at full length 1, B, P, A, O, 2 with samples/cycle data in Compressed ASCII format. Parameter n indicates event order or serial number; see CEV. SEL-411L Relay Protection Manual Date Code 20151029...
Page 871: Table 15.26 Cev Terse Command
CEV 2 C NSUM TERSE For the second most recent event, return 15 cycles of the event in Compressed ASCII format with no event summary and no report label lines with 8 samples/cycle data. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 872: Table 15.28 Chi Command
The CLOSE 1 and CLOSE 2 commands assert Relay Word bits CC1 and CC2, respectively. Relay Word bit CC1 is a variable in the factory default manual close SEL equation BK1MCL Circuit Breaker 1. Typically, you program Relay Word bit CC2 in the manual close SEL...
Page 873: Table 15.31 Com 87L Command
The COMMUNICATIONS command displays communications statistics for ITS ® the M communications channels. For more information on IRRORED communications, see SEL M Communications IRRORED IRRORED on page C.2.10. COM c Use the COM c command to view records in the communications buffers for specific relay communications channels.
Page 874: Table 15.33 Com C C And Com C R Command
Channel A or Channel B when only one channel is enabled; show the records with Record m at the top of the report through Record n at the bottom of the report. SEL-411L Relay Protection Manual Date Code 20151029...
Page 875: Table 15.35 Com Rtc C Command
B. CONTROL nn Use the CONTROL nn command to set, clear, or pulse internal Relay Word bits RB01–RB32 (Remote Bits 1–32). Remote bits in SEL control OGIC equations are similar to hardwired control inputs, in that you use these bits to affect relay operation from outside sources.
Page 876: Table 15.37 Con Nn Command
Class class. Parameters m and n are 1 to 6 for the Group class and 1, 2, 3, and F for the Port class. Parameter class is S, P, and L for group settings, port settings, and protection SEL control OGIC equations, respectively.
Page 877: Table 15.39 Cpr Command
Compressed ASCII format from m to n. If m is greater than n, then records appear with the oldest (highest number) at the beginning of the list and the most recent (lowest number) at the end of the list. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 878: Table 15.41 Cse Terse Command
Compressed ASCII format. Parameter k indicates a specific number of SER records. Parameters m and n indicate an SER record number. Enter date1 and date2 in the same format as Global setting DATE_F. SEL-411L Relay Protection Manual Date Code 20151029...
Page 879: Table 15.42 Cst Command
The CSU MB command causes the relay to output the labels for the communications channel data in Compressed ASCII format. IRRORED Table 15.45 CSU MB Command Command Description Access Level CSU MB Return the M communications 1, B, P, A, O, 2 IRRORED channel labels. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 880: Table 15.46 Csu N Command
1, B, P, A, O, 2 DATE date Set the internal clock date (for setting DATE_F 1, B, P, A, O, 2 set to MDY). Enter date setting in the same format as Global setting DATE_F. SEL-411L Relay Protection Manual Date Code 20151029...
Page 881: Table 15.49 Dna Command
Ethernet port. ==>>ETH <Enter> Relay 1 Date: 11/04/2010 Time: 10:22:19.984 Station A Serial Number: 0000000000 MAC: 00-30-A7-01-E3-0A IP ADDRESS: 10.201.5.27/16 DEFAULT GATEWAY: 10.201.0.1 NETMODE: SWITCHED PRIMARY 87L PORT: ACTIVE 87L PORT: Date Code 20151029 Protection Manual SEL-411L Relay...
Page 882: Table 15.52 Eth C And Eth R Command
EVE A n Return only the analog information for a particular 1, B, P, A, O, 2 n event report with 4-samples/cycle data. Parameter n indicates event order or serial number; see EVE. SEL-411L Relay Protection Manual Date Code 20151029...
Page 883: Table 15.55 Eve Ack Command
8 samples/cycle data. EVE n L Return a particular n event report at full length 1, B, P, A, O, 2 with 8 samples/cycle data. Parameter n indicates event order or serial number. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 884: Table 15.59 Eve Lyyy Command
EVE n NSUM Return a particular n event report without the 1, B, P, A, O, 2 event summary at full length with 4-samples/ cycle data. Parameter n indicates event order or serial number. SEL-411L Relay Protection Manual Date Code 20151029...
Page 885: Table 15.63 Eve Sx Command
Return 10 cycles of the analog portion only of the most recent event report at 4 samples/cycle resolution. EVE 2 C NSUM For the second most recent event, return the event with 8 samples/ cycle data, and omit the event summary. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 886: Table 15.66 Exit Command
Table 15.68 GOOSE Command Command Description Access Level GOOSE Displays GOOSE information 1, B, P, A, O, 2 GOOSE k Displays GOOSE information successively for k times 1, B, P, A, O, 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 887: Table 15.69 Accessible Goose Ied Information
Receive Data Set This field represents the datSetRef (Data Set Reference) that Reference includes the iedName (IED name), ldInst (Logical Device Instance), LN0 lnClass (Logical Node Class) and datSet (Data Set Name) (e.g., SEL_411L_1CFG/LLN0$DSet13). Date Code 20151029 Protection Manual SEL-411L Relay...
Page 888: Table 15.70 Group Command
Are you sure (Y/N)? group. The relay asserts the Relay Word bit SALARM for one second when you change the active group. If any of the SEL control equations SS1–SS6 are set when you issue the OGIC GROUP n command, the group change will fail. The relay responds...
Page 889: Table 15.72 His Command
HIS CA and HIS RA The HIS CA and HIS RA commands clear all history data and event reports from memory. Use these commands to completely delete high-resolution/ event report data captures. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 890: Table 15.74 His Ca And His Ra Commands
If the device supports IEC 61850 ICD or CID files and the IEC 61850 protocol is enabled, the ID command will display the following additional information. ➤ iedName: the IED name (e.g., SEL-411L_OtterTail) ➤ type: the IED type (e.g., SEL-411L) ➤ configVersion: the CID file configuration version (e.g., ICD-411L-R100-V0-Z001001-20060512 SEL-411L Relay...
Page 891 . See the TIME command for more information. DATA ERROR LOOPBACK Use the LOOPBACK command to instruct the relay to receive the transmitted communications data on the same serial port. See SEL IRRORED Communications on page C.2.10 for more information on IRRORED communications.
Page 892: Table 15.77 Loop Command
LOOP c DATA t Begin loopback of M P, A, O, 2 IRRORED communications channel c only for t minutes: pass input data to receive data as in nonloopback mode. SEL-411L Relay Protection Manual Date Code 20151029...
Page 893: Table 15.79 Loop R Command
Use the MAP command to view the organization of the relay database. The MAP command in the relay is very similar to the MAP command in the SEL-2020 and SEL-2030 Communications Processors. MAP 1 The MAP 1 command lists the relay database regions. Database region names are LOCAL, METER, DEMAND, TARGET, HISTORY, BREAKER, STATUS, and ANALOGS.
Page 894: Table 15.82 Map 1 Region Command
Specify Circuit Breaker 1 and Circuit Breaker 2 by using the BK1 and BK2 command options, respectively. Some situations require that you repeatedly monitor the power system for a brief period; specify a number after any MET command to automatically repeat the command. SEL-411L Relay Protection Manual Date Code 20151029...
Page 895: Table 15.84 Met Amv Command
P, A, O, 2 If you have not enabled the Station DC Battery Monitor, the relay responds, . (Enable the dc monitor with the Global setting Monitor Is Not Enabled EDCMON; see Section 5: Settings.) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 896: Table 15.87 Met D Command
1.061 0.202 0.199 ANG (DEG) -65.69 174.39 54.52 -65.59 -66.57 -66.29 THROUGH (pu) 1.205 1.001 1.001 0.204 0.197 Differential MAG (pu) 2.173 1.666 1.668 0.516 0.511 ANG (DEG) -30.17 -152.88 87.24 -21.82 -21.25 SEL-411L Relay Protection Manual Date Code 20151029...
Page 897: Table 15.89 Met E Command
The reset command, MET RE, resets the Line, BK1, and BK2 energy metering quantities. When you issue the MET RE command, the relay responds, If you answer Y <Enter>, the Reset Energy Metering (Y/N)? relay responds, Energy Metering Reset Date Code 20151029 Protection Manual SEL-411L Relay...
Page 898: Table 15.90 Met M Command
To request a report of the synchrophasor data at a specific time, enter the optional time parameter as a time of day. For example, the relay will respond to the MET PM 16:40:10 command with: Synchronized Phasor Measurement Data Will Be Displayed at 16:40:10.000 SEL-411L Relay Protection Manual Date Code 20151029...
Page 899: Table 15.92 Met Pmv Command
Parameter n is 1 or 2 to indicate Circuit Breaker 1 or Circuit Breaker 2. MET RTC Use the MET RTC command to view the data received on all active synchrophasor client channels. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 900: Table 15.94 Met Rtc Command
If there is a communications failure between the relay and the SEL-2600A, as indicated by the RTDCOMF Relay Word bit, the relay displays the following: Communication Failure If the RTDFL Relay Word bit is set to indicate a SEL-2600A failure, the relay displays the following: SEL-2600 Failure...
Page 901: Table 15.97 Oac Command
OGIC factory default manual trip SEL control equation, BK1MTR, includes OGIC OC1. Typically, you program Relay Word bit OC2 in the manual trip SEL OGIC control equation BK2MTR. See Trip Logic on page P.3.237 for information on trip SEL control equations.
Page 902: Table 15.100 Pas Level New_Password Command
Command Description Access Levels access. SEL shall not be responsible for any damage resulting from PAS n Set a new password for Access Level n. unauthorized access. Parameter level represents the relay access levels 1, B, P, A, O, or 2.
Page 903: Table 15.103 Port P Command
MBNUM less than 8, and have at least one virtual terminal session available (set MBNUMVT to 0 or greater). Choosing MBNUMVT to 0 uses virtual terminal within the synchronization channel only. See SEL M IRRORED Communications on page C.2.10 for information on the M IRRORED communications protocol.
Page 904: Table 15.104 Port Kill N Command
Use the PULSE OUTnnn command to pulse any of the relay control outputs for a specified time. This function aids you in relay testing and commissioning. If the output is open, the PUL command momentarily closes SEL-411L Relay Protection Manual Date Code 20151029...
Page 905: Table 15.106 Pul Outnnn Command
Relay conditions include power up, relay enable/disable, group changes, settings changes, memory queue overflow, and SER autoremoval/ reinsertion. For more information on the Sequential Events Recorder, see Section 8: Oscillography, Events, and SER. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 906: Table 15.109 Ser Command
Table 15.111 SER CA and SER RA Commands Command Description Access Level SER CA Clear SER data for all ports. P, A, O, 2 SER RA Clear SER data for all ports. P, A, O, 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 907: Table 15.112 Ser Cv Or Ser Rv Commands
The SET and SHOW commands contain these settings structure items, which you must specify in order from class to instance (if applicable) to setting. The order that specific settings appear in the relay settings structure is factory programmed. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 908: Table 15.114 Set Command Overview
A, 2 OGIC relay settings in Block n. Parameter n = 1–10 for Block 1–10. The relay presents text-edit mode entry format for the free-form SEL OGIC control equations you program in the Automation SEL control equations OGIC settings area.
Page 909: Table 15.117 Set D Command
SET G label Set the Global relay settings, beginning at the setting P, A, O, 2 label label. SET L Use the SET L command to set the Protection SEL control equations. OGIC See Section 14: SEL Control Equation Programming for more...
Page 910: Table 15.121 Set M Command
P.15.48 ASCII Command Reference Description of Commands The relay presents text-edit mode entry format for the free-form SEL OGIC control equations you program in the Protection SEL control equation OGIC settings area. SET M Use the SET M command to set the circuit breaker monitor settings. There is only one instance for the Breaker Monitor class.
Page 911: Table 15.125 Set R Command
SET TERSE Use the TERSE option to inhibit the relay from sending the settings class or instance readback when you end a settings session. SEL recommends that you use the TERSE option sparingly; you should review the readback information to confirm that you have entered the settings that you intended.
Page 912: Table 15.128 Sho Command Overview
1, B, P, A, O, 2 the settings label label. Parameter n = 1–6, representing Group 1–6. SHO A Use the SHO A command to show the Automation SEL control OGIC equations. See Section 14: SEL Control Equation Programming for more...
Page 913: Table 15.131 Sho D Command
Show the Global relay settings, beginning at 1, B, P, A, O, 2 the settings label label. SHO L Use the SHO L command to show the Protection SEL control equations. OGIC See Section 14: SEL Control Equation Programming for more...
Page 914: Table 15.135 Sho M Command
SHO N Show notes in the relay. 1, B, P, A, O, 2 SHO O Use the SHO O command to show the Output SEL control equations. OGIC See Control Outputs on page P.2.6 for more information on relay control outputs.
Page 915: Table 15.139 Sho R Command
See Relay Self-Tests on page P.11.38 for information on relay diagnostics. The STA command with no options displays a short-form relay status report. Items in the STA report are the header, failures, warnings, SEL control OGIC equation programming environment errors, and relay operational status.
Page 916: Table 15.143 Sta A Command
The STA C and STA R commands reboot the relay. Thus, these commands clear a transient failure should this unlikely event occur. Options C and R are identical. Contact your Technical Service Center or the SEL Factory before using this command.
Page 917: Table 15.148 Sum Ack Command
Use the SUM N command to view the oldest (next) unacknowledged event summary. Table 15.149 SUM N Command Command Description Access Level SUM N View the oldest unacknowledged event 1, B, P, A, O, 2 summary at the present communications port. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 918: Table 15.150 Tar Command
Use the TAR X command to view a different target row in the Relay Word bit table than the target row in the target row repeat memory. This function is useful for relay testing. See Section 11: Testing and Troubleshooting for more information. SEL-411L Relay Protection Manual Date Code 20151029...
Page 919: Table 15.153 Tar X Command
Message protocol connected to the relay through serial communication or Ethernet network. You can therefore test the read functionality of the Fast Message protocol in the serial port or Ethernet interface with this command. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 920: Table 15.155 Test Db Command
The TEST DB2 command is used to test communication protocols that make use of the CADI2 Interface. TEST DB2 Other than Fast Message Protocol, all the communication protocols supported by the relay (DNP3, IEC 61850) retrieve data from a storage area called the SEL-411L Relay Protection Manual Date Code 20151029...
Page 921: Table 15.157 Test Db2 Command
The TEST FM command overrides normal Fast Meter quantities for testing purposes. You can override only “reported” Fast Meter values (per-phase voltages and currents). For more information on Fast Meter and the relay, see Section 2: SEL Communications Protocols in the Communications Manual. Date Code 20151029 Protection Manual...
Page 922: Table 15.159 Test Fm Command
Table 15.160 TEST FM DEM Command Command Description Access Level TEST FM DEM Write new data value1 to the Fast Meter B, P, A, O, 2 label value1 demand meter report at the item label label. SEL-411L Relay Protection Manual Date Code 20151029...
Page 923: Table 15.161 Test Fm Off Command
UTC, and UTC offset. TIME hh:mm Set the relay internal clock to hh:mm. 1, B, P, A, O, 2 TIME hh:mm:ss Set the relay internal clock to hh:mm:ss. 1, B, P, A, O, 2 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 924: Table 15.164 Time Q Command
Trigger relay data capture. 1, B, P, A, O, 2 When you issue the TRI command, the relay responds, . If the Triggered event did not trigger within 1 second, the relay responds, Did not trigger SEL-411L Relay Protection Manual Date Code 20151029...
Page 925: Table 15.167 Ver Command
8 outputs Board 2: not installed E4 Configuration: 0 Extended Relay Features: IEC 61850 If the above information is not as expected, contact SEL for assistance. => Figure 15.7 Sample VER Command Response Date Code 20151029 Protection Manual SEL-411L Relay...
Page 926: Table 15.168 View 1 Commands-Region
Register item ➤ The VIEW command in the relay is very similar to the VIEW command in SEL Communications Processors. See Section 1: Communications Interfaces in the Communications Manual for more information on the relay database regions and data types.
Page 927: Table 15.170 View 1 Commands-Bit
VIEW 1 region command and the VIEW 1 addr command with the bit label option bit_label. Date Code 20151029 Protection Manual SEL-411L Relay...
Page 928 This page intentionally left blank...
Page 929: Table 16.1 Alphabetical List Of Relay Word Bits
Undervoltage Element 5, Level 2 picked up 276P1 Undervoltage Element 6, Level 1 picked up 276P1T Undervoltage Element 6 Level 1 timed out 276P2 Undervoltage Element 6, Level 2 picked up 27APO A-phase undervoltage, pole open Date Code 20151029 Protection Manual SEL-411L Relay...
Page 930: Section 16: Relay Word Bits Alphabetic
Forward open-pole directional declaration 32SPOR Reverse open-pole directional declaration 32VE 32V internal enable control equation) 3P1CLS Three-pole Circuit Breaker 1 reclose supervision (SEL OGIC 3P2CLS Three-pole Circuit Breaker 2 reclose supervision (SEL control equation) OGIC 3PARC Three-pole reclose initiate qualified...
Page 931 Inverse-time element 04 reset 51R05 Inverse-time element 05 reset 51R06 Inverse-time element 06 reset 51R07 Inverse-time element 07 reset 51R08 Inverse-time element 08 reset 51R09 Inverse-time element 09 reset 51R10 Inverse-time element 10 reset Date Code 20151029 Protection Manual SEL-411L Relay...
Page 932 Circuit Breaker 2, Pole B status 52AC1 Circuit Breaker 1, Pole C status 52AC2 Circuit Breaker 2, Pole C status 52ACL1 Circuit Breaker 1, Pole A closed 52ACL2 Circuit Breaker 2, Pole A closed SEL-411L Relay Protection Manual Date Code 20151029...
Page 933 Negative-sequence and residual directional overcurrent short delay element 67QUBF Forward direction supervised output from 50QUBP 67QUBR Reverse direction supervised output from 50QUBP 79CY1 Relay in single-pole reclose cycle state 79CY3 Relay in three-pole reclose cycle state Date Code 20151029 Protection Manual SEL-411L Relay...
Page 934 (87CCC must = 87CCB + 1) 87CCD Charging current compensation degraded (87CCD must = 87CCU+1) 87CCU Charging current compensation (87CCU, CCD, CCB and CCC must all be in the same long- word) 87CH1AC Channel 1 is active SEL-411L Relay Protection Manual Date Code 20151029...
Page 935 Channel 2 low-synchronization quality 87CH2NB Noise burst detected in Channel 2 87CH2NS Channel 2 no synchronization 87CH2OK Communication on channel 2 is OK 87CH2RQ Channel 2 is required 87CH2T Maximum channel delay alarm for Channel 2 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 936 External fault detected at the local terminal 87EFDR External fault detected by one of the remote terminals 87ERR1 87L watchdog Stage 1 operation 87ERR2 87L watchdog Stage 2 operation 87FIDEN 87FIDEN logic enabled SEL-411L Relay Protection Manual Date Code 20151029...
Page 937 87L operated: phase, ground, negative-sequence or from the 87 DTT 87QB Harmonic asserted for the 87LQ element (second or fifth harmonic block in any phase) 87R01P1–87R08P1 Received bit 1–8 from Remote Peer 1 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 938 87L function in a test mode. 87TESTL The 87L test has been initiated in the local relay 87TESTR The 87L test has been initiated in a remote relay 87TMSUP Test Mode Supervision (SEL Eqn) OGIC 87TOK Internal Time suitable for 87L time-based synchronization 87TOUT Monitor 87L element response during 87L testing 87TST1–87TST3...
Page 939 Disconnect 06 Close Block 89CBL07 Disconnect 07 Close Block 89CBL08 Disconnect 08 Close Block 89CBL09 Disconnect 09 Close Block 89CBL10 Disconnect 10 Close Block 89CC01 ASCII Close Disconnect 1 Command 89CC02 ASCII Close Disconnect 2 Command Date Code 20151029 Protection Manual SEL-411L Relay...
Page 940 Disconnect 09 Close Immobility Timer timed out 89CIM10 Disconnect 10 Close Immobility Timer timed out 89CIR01 Disconnect 01 Close Immobility Timer reset 89CIR02 Disconnect 02 Close Immobility Timer reset 89CIR03 Disconnect 03 Close Immobility Timer reset SEL-411L Relay Protection Manual Date Code 20151029...
Page 941 Disconnect 07 Close Reset 89CRS08 Disconnect 08 Close Reset 89CRS09 Disconnect 09 Close Reset 89CRS10 Disconnect 10 Close Reset 89CSI01 Disconnect 01 Close Seal-in Timer timed out 89CSI02 Disconnect 02 Close Seal-in Timer timed out Date Code 20151029 Protection Manual SEL-411L Relay...
Page 942 Mimic Disconnect 7 Open Control 89OCM08 Mimic Disconnect 8 Open Control 89OCM09 Mimic Disconnect 9 Open Control 89OCM10 Mimic Disconnect 10 Open Control 89OCN01 Open Disconnect 1 89OCN02 Open Disconnect 2 89OCN03 Open Disconnect 3 SEL-411L Relay Protection Manual Date Code 20151029...
Page 943 Disconnect 08 Open Immobility Timer reset 89OIR09 Disconnect 09 Open Immobility Timer reset 89OIR10 Disconnect 10 Open Immobility Timer reset 89OPE01 Disconnect Open 1 Output 89OPE02 Disconnect Open 2 Output 89OPE03 Disconnect Open 3 Output Date Code 20151029 Protection Manual SEL-411L Relay...
Page 944 Disconnect 10 Open Seal-in Timer timed out A3PT Assert three-pole trip ACCESS A user is logged-in at access level B or above ACCESSP Pulsed alarm for logins to access level B or above ACN01Q–ACN08Q Automation Counter 1–8 output SEL-411L Relay Protection Manual Date Code 20151029...
Page 945 ALT01–ALT08 Automation Latch 1–8 ALT09–ALT16 Automation Latch 9–16 ALT17–ALT24 Automation Latch 17–24 ALT25–ALT32 Automation Latch 25–32 ALTI Alternate current source (SEL control equation) OGIC ALTS2 Alternate synchronism source for Circuit Breaker 2 ALTV Alternate voltage source (SEL control equation) OGIC...
Page 946 Circuit Breaker 1 electrical slow operation alarm B1KAIAL Circuit Breaker 1 interrupted current alarm B1MRTAL Circuit Breaker 1 motor running time alarm B1MRTIN Motor run time contact input-Circuit Breaker 1 (SEL control equation) OGIC B1MSOAL Circuit Breaker 1 mechanical slow operation alarm B1OPHA...
Page 947 Circuit Breaker 1 failure trip output asserted BFTRIP2 Circuit Breaker 2 failure trip output asserted BFTRPR1 Reserved BFTRPR2 Reserved BFULTR1 Circuit breaker failure unlatch trip-Circuit Breaker 1 (SEL control equation) OGIC BFULTR2 Circuit breaker failure unlatch trip-Circuit Breaker 2 (SEL control equation) OGIC BK1BFT...
Page 948 Circuit Breaker 2 block C-phase flashover detection BLKLPTS Block low priority source from updating relay time control equation) BM1CLSA Circuit breaker monitor A-phase close-Circuit Breaker 1 (SEL OGIC BM1CLSB Circuit breaker monitor B-phase close-Circuit Breaker 1 (SEL control equation) OGIC...
Page 949 DC2W DC Monitor 2 warning alarm DDTO TW disturbance detector DELAY Local current and voltage source delay logic DFAULT Disables maximum/minimum metering and demand metering when SEL control equation OGIC FAULT asserts DLDB1 Dead Line Dead Bus 1 DLDB2 Dead Line Dead Bus 2...
Page 950 C-phase displacement power factor OK Daylight Savings Time DSTP Daylight Savings Time Pending DSTRT Directional start element picked up Direct transfer trip A-Phase (SEL control equation) OGIC Direct transfer trip B-Phase (SEL control equation) OGIC Direct transfer trip C-Phase (SEL...
Page 951 Fast-operate output control bits for Port 3, Bit 9–16 FOP3_17–FOP3_24 Fast-operate output control bits for Port 3, Bit 17–24 FOP3_25–FOP3_32 Fast-operate output control bits for Port 3, Bit 25–32 FOPF_01–FOPF_08 Fast-operate output control bits for Port F, Bit 1–8 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 952 First Optional I/O Board Input 17–24 (if installed) IN301–IN308 Second Optional I/O Board Input 1–8 (if installed) IN309–IN316 Second Optional I/O Board Input 9–16 (if installed) IN317–IN324 Second Optional I/O Board Input 17–24 (if installed) SEL-411L Relay Protection Manual Date Code 20151029...
Page 953 Transmit A-phase permissive trip (ECOMM=POTT3) KEYB Transmit B-phase permissive trip (ECOMM=POTT3) KEYC Transmit C-phase permissive trip (ECOMM=POTT3) KEYD Transmit Directional permissive trip (ECOMM=POTT, EPTDIR=Y) LB_DP01–LB_DP08 Local Bit 01–08 Status Display (SEL Equation) OGIC LB_DP09–LB_DP16 Local Bit 09–16 Status Display (SEL Equation) OGIC LB_DP17–LB_DP24 Local Bit 17–24 Status Display (SEL...
Page 954 LNKFL2 Set to 1 if link status of active 87L or Sampled Value port is down. LOADTE Load TECORR Factor (SEL Equation). When a rising edge is detected, the accumulated OGIC time-error value TE is loaded with the TECORR factor (preload value).
Page 955 Zone 2 High-speed Mho C-A phase-to-phase element MCA3 Zone 3 Mho C-A phase element MCA3F Zone 3 Filtered Mho C-A phase-to-phase element MCA3H Zone 3 High-speed Mho C-A phase-to-phase element MCA4 Zone 4 Mho C-A phase element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 956 Optional I/O Board 1 Output 9–16 OUT301–OUT308 Optional I/O Board 2 Output 1–8 OUT309–OUT316 Optional I/O Board 2 Output 9–16 OUT401–OUT408 Optional I/O Board 3 Output 1–8 OUT409–OUT416 Optional I/O Board 3 Output 9–16 SEL-411L Relay Protection Manual Date Code 20151029...
Page 957 Asserts for approximately 1.5 cycles when the TEC command is used to load a new time-error correction factor (preload value) into the TECORR analog quantity. PLT01–PLT08 Protection Latch 1–8 PLT09–PLT16 Protection Latch 9–16 PLT17–PLT24 Protection Latch 17–24 PLT25–PLT32 Protection Latch 25–32 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 958 Recloser three-pole trip enable Circuit Breaker 1 R3PTE2 Recloser three-pole trip enable Circuit Breaker 2 Positive-sequence resistance within zone 6 Resistance blinder Positive-sequence resistance within zone 7 Resistance blinder RB01–RB08 Remote Bit 1–8 SEL-411L Relay Protection Manual Date Code 20151029...
Page 959 Normal Mirrored Bits communications Channel B status while not in loopback mode Positive-sequence resistance within zone 6 Right Resistance blinder Positive-sequence resistance within zone 7 Right Resistance blinder RST_79C Reset recloser shot count accumulators (SEL control equation) OGIC RST_BAT Reset battery monitoring (SEL...
Page 960 Qualify serial IRIG-B high accuracy time source SER_TIM A valid IRIG-B time source is detected on serial port SERCA Series-compensated line A-phase output SERCAB Series-compensated line AB-phase output SERCB Series-compensated line B-phase output SEL-411L Relay Protection Manual Date Code 20151029...
Page 961 < fp SLOW2 fs2 < fp SOTFE Switch-onto-fault enable SOTFT Switch-onto-fault trip SP1CLS Single-pole Circuit Breaker 1 reclose supervision (SEL control equation) OGIC SP2CLS Single-pole Circuit Breaker 2 reclose supervision (SEL control equation) OGIC SPARC Single-pole reclose initiate qualified...
Page 962 TQUAL2 Time quality, binary, add 2 when asserted TQUAL4 Time quality, binary, add 4 when asserted TQUAL8 Time quality, binary, add 8 when asserted TREA1 Trigger Reason Bit 1 (SEL Equation) OGIC TREA2 Trigger Reason Bit 2 (SEL Equation) OGIC...
Page 963 Block permissive trip received 1 or 2 UBB1 Blocks permissive trip Receiver 1 UBB2 Blocks permissive trip Receiver 2 UBOSB Unblock out-of-step blocking ULCL1 Unlatch closing for Circuit Breaker 1 (SEL control equation) OGIC ULCL2 Unlatch closing for Circuit Breaker 2 (SEL control equation) OGIC ULMTR1...
Page 964 Zone 3 Quad A-B phase element XAB3F Zone 3 Filtered Quad A-B phase-to-phase element XAB3H Zone 3 High-speed Quad A-B phase-to-phase element XAB4 Zone 4 Quad A-B phase element XAB4F Zone 4 Filtered Quad A-B phase-to-phase element SEL-411L Relay Protection Manual Date Code 20151029...
Page 965 Zone 3 High-speed Quad B phase-to-ground element XBG4 Zone 4 quad B-phase-to-ground element XBG4F Zone 4 Filtered Quad B phase-to-ground element XBG5 Zone 5 quad B-phase-to-ground element XBG5F Zone 5 Filtered Quad B phase-to-ground element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 966 Zone 1 ground distance, time-delayed Zone 1 phase distance element Z1PT Zone 1 phase distance, time-delayed Zone 1 phase or ground distance, time-delayed Zone 2 ground distance element Z2GT Zone 2 ground distance, time-delayed SEL-411L Relay Protection Manual Date Code 20151029...
Page 967: Row List
Table 16.2 lists every Relay Word bit row and the bits contained within each row. Table 16.2 Row List of Relay Word Bits (Sheet 1 of 35) Name Bit Description Enable and Tripping Bits Relay enabled TRIPLED Trip LED TLED_1–TLED_8 Target LED 1–8 TLED_9–TLED_16 Target LED 9–16 Date Code 20151029 Protection Manual SEL-411L Relay...
Page 968 CCVT transient blocking logic active-high-speed elements CVTBL CCVT transient blocking logic active VMEMC Polarizing memory voltage control VPOLV Polarizing voltage valid Series Compensated Line Logic SERCAB Series-compensated line AB-phase output SERCBC Series-compensated line BC-phase output SEL-411L Relay Protection Manual Date Code 20151029...
Page 969 Reverse negative-sequence overcurrent directional declaration 32SPOF Forward open-pole directional declaration 32SPOR Reverse open-pole directional declaration 50QF Forward negative-sequence supervisory current element 50QR Reverse negative-sequence supervisory current element 50GF Forward zero-sequence supervisory current element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 970 < fp BSYNBK2 Block synchronism check for Circuit Breaker 2 Overcurrent Elements 50P1–50P4 Level 1–4 phase overcurrent element 67P1–67P4 Level 1–4 phase directional overcurrent element 67P1T–67P4T Level 1–4 phase-delayed directional overcurrent element SEL-411L Relay Protection Manual Date Code 20151029...
Page 971 No circuit breakers active in reclose scheme NBK1 One circuit breaker active in reclose scheme NBK2 Two circuit breakers active in reclose scheme SP1CLS Single-pole Circuit Breaker 1 reclose supervision (SEL control equation) OGIC Date Code 20151029 Protection Manual SEL-411L Relay...
Page 972 Relay Word Bits Row List Table 16.2 Row List of Relay Word Bits (Sheet 6 of 35) Name Bit Description SP2CLS Single-pole Circuit Breaker 2 reclose supervision (SEL control equation) OGIC 3P1CLS Three-pole Circuit Breaker 1 reclose supervision (SEL control equation)
Page 973 Fault identification logic enabled A-phase sector fault (AG or BCG fault) B-phase sector fault (BG or CAG fault) C-phase sector fault (CG or ABG fault) DFAULT Disables maximum/minimum metering and demand metering when SEL control OGIC equation FAULT asserts FTSAG...
Page 974 Unlatch all protection trips ULMTR1, ULMTR2 Circuit Breaker 1–2 unlatch manual trip ULTRA, ULTRB, ULTRC Unlatch Trip A, Trip B, Trip C DTA, DTB, DTC Direct transfer trip A-phase, B-phase, C-phase (SEL control equation) OGIC Pilot Tripping Elements Permissive trip received Z3RB...
Page 975 Circuit Breaker 1 failure trip output asserted BFTR1 Circuit breaker failure trip Circuit Breaker 1 (SEL control equation) OGIC BFULTR1 Circuit breaker failure unlatch trip Circuit Breaker 1 (SEL control equation) OGIC Breaker 2 Failure BFI3P2 Circuit Breaker 2 three-pole circuit breaker failure initiation...
Page 976 Circuit Breaker 2, Pole A, Pole B, Pole C alarm 52AA2, 52AB2, 52AC2 Circuit Breaker 2, Pole A, Pole B, Pole C status Breaker Monitor 1 BM1TRPA, BM1TRPB, Circuit breaker monitor A-phase, B-phase, C-phase trip, Circuit Breaker 1 (SEL OGIC BM1TRPC control equation) BM1CLSA, BM1CLSB,...
Page 977 B1MRTAL Circuit Breaker 1 motor running time alarm B1KAIAL Circuit Breaker 1 interrupted current alarm BM2TRPA, BM2TRPB, Circuit breaker monitor A-phase, B-phase, C-phase trip, Circuit Breaker 2 (SEL OGIC BM2TRPC control equation) BM2CLSA, BM2CLSB, Circuit breaker monitor A-phase, B-phase, C-phase close, Circuit Breaker 2 (SEL...
Page 978 Step change in the round trip alarm for Channel 1–3 87CH3DT 87TEST 87L function in a test mode Local Bits LB01–LB08 Local Bits 1–8 LB09–LB16 Local Bits 9–16 LB17–LB24 Local Bits 17–24 LB25–LB32 Local Bits 25–32 SEL-411L Relay Protection Manual Date Code 20151029...
Page 979 Inverse-time Element 08 pickup setting outside of specified limits 51TM08 Inverse-time Element 08 time dial setting outside of specified limits 51TC09 Inverse-time Element 09 enabled 51R09 Inverse-time Element 09 reset 51MM09 Inverse-time Element 09 pickup setting outside of specified limits Date Code 20151029 Protection Manual SEL-411L Relay...
Page 980 Open circuited CT detected 87ROCT Open circuit CT not suspected in any phase 87TST1, 87TST2, 87TST3 Received TEST bit from Channel 1–3 packet 87TMSUP Test mode supervision (SEL equation) OGIC 87ROCTA Open circuit CT not suspected in A-phase 87ROCTB, 87ROCTC...
Page 981 Second optional I/O board Inputs 17–24 (if installed) IN401–IN408 Third optional I/O board Inputs 1–8 (if installed) IN409–IN416 Third optional I/O board Inputs 9–16 (if installed) IN417–IN424 Third optional I/O board Inputs 17–24 (if installed) Date Code 20151029 Protection Manual SEL-411L Relay...
Page 982 Protection Counters 9–16 reset PCN17R–PCN24R Protection Counters 17–24 reset PCN25R–PCN32R Protection Counters 25–32 reset Automation SEL Variables OGIC ASV001–ASV008 Automation SEL Variables 1–8 OGIC ASV009–ASV016 Automation SEL Variables 9–16 OGIC ASV017–ASV024 Automation SEL Variables 17–24 OGIC SEL-411L Relay Protection Manual Date Code 20151029...
Page 983 Automation sequencing Timers 1–8 output AST09Q–AST16Q Automation sequencing Timers 9–16 output AST17Q–AST24Q Automation sequencing Timers 17–24 output AST25Q–AST32Q Automation sequencing Timers 25–32 output AST01R–AST08R Automation sequencing Timers 1–8 reset AST09R–AST16R Automation sequencing Timers 9–16 reset Date Code 20151029 Protection Manual SEL-411L Relay...
Page 984 Undervoltage Elements 5–6, Level 1 timed out 59TC1–59TC6 Overvoltage Elements 1–6 torque control asserted 591P1–592P1 Overvoltage Elements 1–2, Level 1 picked up 593P1–596P1 Overvoltage Elements 3–6, Level 1 picked up 591P1T–594P1T Overvoltage Elements 1–4 Level 1 timed out SEL-411L Relay Protection Manual Date Code 20151029...
Page 985 Reset peak demand metering RST_ENE Reset energy metering data RSTMML Reset max/min line (SEL control equation) OGIC RSTMMB1 Reset max/min Circuit Breaker 1 (SEL control equation) OGIC RSTMMB2 Reset max/min Circuit Breaker 2 (SEL control equation) OGIC RST_BK1–RST_BK2 Reset Circuit Breaker 1–2 monitor...
Page 986 Virtual Bits 105–112 VB097–VB104 Virtual Bits 097–104 VB089–VB096 Virtual Bits 089–096 VB081–VB088 Virtual Bits 081–088 VB073–VB080 Virtual Bits 073–080 VB065–VB072 Virtual Bits 065–072 VB057–VB064 Virtual Bits 057–064 VB049–VB056 Virtual Bits 049–056 VB041–VB048 Virtual Bits 041–048 SEL-411L Relay Protection Manual Date Code 20151029...
Page 987 Zone 3 filtered quad BC phase element XCA4F Zone 4 filtered quad CA phase element XBC4F Zone 4 filtered quad BC phase element XAB4F Zone 4 filtered quad AB phase element MCA4F Zone 4 filtered mho CA phase element Date Code 20151029 Protection Manual SEL-411L Relay...
Page 988 MAB2H High-speed Zone 2 mho AB phase element MBC3H High-speed Zone 3 mho BC phase element MAB3H High-speed Zone 3 mho AB phase element XCA1H High-speed Zone 1 high-speed quad CA phase element SEL-411L Relay Protection Manual Date Code 20151029...
Page 989 Synchrophasor SEL Equations/RTC Synchrophasor Status Bits OGIC PMTEST Synchrophasor test mode PMTRIG Trigger (SEL control equation) OGIC TREA1–TREA4 Trigger Reason Bit 1–4 (SEL Equation) OGIC FROKPM Synchrophasor frequency EVELOCK Lock DNP events RTCSEQB RTC configuration complete, Channel B RTCSEQA RTC configuration complete, Channel A...
Page 990 Time quality, binary, add 2 when asserted TQUAL1 Time quality, binary, add 1 when asserted LOADTE Load TECORR Factor (SEL Equation). When a rising-edge is detected, the accumu- OGIC lated time-error value TE is loaded with the TECORR factor (preload value).
Page 991 Local Bits 17–24 supervision (SEL equation) OGIC LB_SP25–LB_SP32 Local Bits 25–32 supervision (SEL equation) OGIC Local Control Bits Status LB_DP01–LB_DP08 Local Bits 01–08 status display (SEL equation) OGIC LB_DP09–LB_DP16 Local Bits 09–16 status display (SEL equation) OGIC LB_DP17–LB_DP24 Local Bits 17–24 status display (SEL...
Page 992 Disconnect 5 open 89OIP05 Disconnect 5 operation in progress 89AL05 Disconnect 5 alarm 89AM06 Disconnect 6 N/O auxiliary contact 89BM06 Disconnect 6 N/C auxiliary contact 89CL06 Disconnect 6 closed 89OPN06 Disconnect 6 open SEL-411L Relay Protection Manual Date Code 20151029...
Page 993 Disconnect open 1 output 89CLS01 Disconnect close 1 output 89OCN01 Open Disconnect 1 89CCN01 Close Disconnect 1 89OC02 ASCII open Disconnect 2 command 89CC02 ASCII close Disconnect 2 command 89OCM02 Mimic Disconnect 2 open control Date Code 20151029 Protection Manual SEL-411L Relay...
Page 994 Disconnect close 6 output 89OCN06 Open Disconnect 6 89CCN06 Close Disconnect 6 89OC07 ASCII open Disconnect 7 command 89CC07 ASCII close Disconnect 7 command 89OCM07 Mimic Disconnect 7 open control 89CCM07 Mimic Disconnect 7 close control SEL-411L Relay Protection Manual Date Code 20151029...
Page 995 Disconnect 01 open reset 89CRS01 Disconnect 01 close reset 89OIM01 Disconnect 01 open immobility timer timed out 89CIM01 Disconnect 01 close immobility timer timed out 521CLSM Breaker 1 closed 521_ALM Breaker 1 status alarm Date Code 20151029 Protection Manual SEL-411L Relay...
Page 996 Disconnect 05 open seal-in timer timed out 89CSI05 Disconnect 05 close seal-in timer timed out 89OIR05 Disconnect 05 open immobility timer reset 89CIR05 Disconnect 05 close immobility timer reset 89OBL05 Disconnect 05 open block 89ORS05 Disconnect 05 open reset SEL-411L Relay Protection Manual Date Code 20151029...
Page 997 Disconnect 09 close seal-in timer timed out 89OIR09 Disconnect 09 open immobility timer reset 89CIR09 Disconnect 09 close immobility timer reset 89OBL09 Disconnect 09 open block 89ORS09 Disconnect 09 open reset 89CRS09 Disconnect 09 close reset Date Code 20151029 Protection Manual SEL-411L Relay...
Page 998 81D6OVR Level 6 overfrequency element pick up 81D6UDR Level 6 underfrequency element pick up 87L Communications Bits 87T1P1–87T4P1 Bits 1–4 transmitted on Serial Port 1 87T1P2–87T4P2 Bits 1–4 transmitted on Serial Port 2 SEL-411L Relay Protection Manual Date Code 20151029...
Page 999 Channel 1–3 channel-based synchronization 87CH3CS 87CH1TS, 87CH2TS, Channel 1–3 time-based synchronization 87CH3TS 87CH1NS, 87CH2NS, Channel 1–3 no synchronization 87CH3NS ETL1, ETL2, ETL3 External time lock Channel 1–3 87CH1HS, 87CH2HS, Channel 1–3 high-synchronization quality 87CH3HS Date Code 20151029 Protection Manual SEL-411L Relay...
Page 1000 Bits 17–24 transmitted over Ethernet 87T25E–87T32E Bits 25–32 transmitted over Ethernet Future 87R09P1–87R16P1 Received Bits 9–16 from Remote Peer 1 87R17P1–87R24P1 Received Bits 17–24 from Remote Peer 1 87R25P1–87R32P1 Received Bits 25–32 from Remote Peer 1 Future SEL-411L Relay Protection Manual Date Code 20151029...

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