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Sel -411L Manual

Advanced line differential protection, automation, and control system
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SEL-411L Advanced Line Differential
Protection, Automation, and Control System
Line Current Differential Protection
Automation and Control System
Key Features and Benefits
The SEL-411L Advanced Line Differential Protection, Automation, and Control System combines high-speed line cur-
rent differential, distance, and directional protection with complete bay control. This data sheet applies to all the model
options of the SEL-411L-0, -1, and -A relays. Table 5 details which features, functions, and applications are supported
by each of the SEL-411L models.
➤
Line Current Differential Protection. The 87L function of the SEL-411L provides protection for any transmission
line or cable with as many as three terminals over serial communications and as many as four terminals over
Ethernet communications, in three-pole or single-pole tripping modes. Each terminal can be connected in a dual
breaker arrangement.
➤
Generalized Alpha Plane. Phase-segregated (87LP), negative-sequence (87LQ), and zero-sequence (87LG)
differential elements use patented generalized alpha plane comparators. Combined with overcurrent supervision,
external fault detection, optional charging current compensation, and disturbance detection logic, these provide the
87L function with exceptional security and sensitivity. An adaptive feature increases security of the 87L function if:
➢
An external fault is detected
➢
Communications synchronization is degraded
➢
Charging current compensation is enabled but momentarily impossible because of loss-of-potential (LOP) or
other conditions
The generalized alpha plane principle is similar to the two-terminal SEL-311L. However, the SEL-311L and
SEL-411L are two completely independent hardware and firmware platforms. They are not compatible to be
applied in a line-current differential scheme.
➤
Inclusion of Power Transformers in the Protective Zone. The SEL-411L allows for in-line power transformer
applications by compensating for transformer vector group, ratio, and zero-sequence current. The 87L function
supports both harmonic blocking and/or harmonic restraint for stabilization during transformer inrush conditions.
During over-excitation conditions, the SEL-411L uses fifth-harmonic current to secure the 87L elements. The 87L
function can protect multiwinding transformers.
Schweitzer Engineering Laboratories, Inc.
SEL-411L Data Sheet

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  • Page 1 This data sheet applies to all the model options of the SEL-411L-0, -1, and -A relays. Table 5 details which features, functions, and applications are supported by each of the SEL-411L models.
  • Page 2 Stub Bus Protection. Disconnect status inputs and voltage elements can enable high-speed stub bus protection and proper response toward remote SEL-411L relays. Stub bus protection in the SEL-411L provides a true restrained differential function that yields exceptional security in dual-breaker applications.
  • Page 3 Through the use of SEL control equations, you can dynamically include or exclude each current OGIC input from the differential zone. With this capability, you can use the SEL-411L in such advanced applications as breaker substitution in double-bus single-breaker or transfer bus configurations. ➤...

  • Page 4: Functional Overview

    IEEE 1588, Precision Time Protocol (PTP). PTP provides high-accuracy timing over an Ethernet network. ➤ Digital Relay-to-Relay Communications. M communications can monitor internal element conditions IRRORED between bays within a station, or between stations, using SEL fiber-optic transceivers. Send digital, analog, and virtual terminal data over the same M channel. IRRORED ➤...

  • Page 5: Protection Features

    Protection Features The SEL-411L contains all the necessary protective elements and control logic to protect overhead transmission lines and underground cables (see Figure 2). Differential Differential Restraint Restraint Differential Operate Phase Currents and Other 87L Data Figure 2 Differential Element Operate and Restraint Regions...
  • Page 6 87L elements. fast and severe CT saturation resulting from high current magnitudes such as those occurring during Each SEL-411L terminal with access to voltage uses the close-in external faults. lump parameter model of the transmission line and the ➤...
  • Page 7 Noise in a communications channel can corrupt data. The citation conditions and offers both harmonic restraint and SEL-411L uses a 32-bit BCH code to protect data integ- blocking to accommodate transformer inrush. Proper com- rity. Any data integrity protection has a non-zero proba- pensation of the measured current occurs at the local relay bility of defeat.

  • Page 8: Channel Monitoring

    You can apply these distance elements, security and dependability. together with optional high-speed distance elements, in communications-assisted and step-distance protection The monitoring functions of the SEL-411L include a round- schemes. You can use expanded SEL control equa- OGIC trip channel delay, step change in the round-trip delay tions to tailor the relay further to your particular application.
  • Page 9 0.75 0.75 0.50 0.50 SIR = 0.1 SIR = 0.1 0.25 0.25 100% 100% Fault Location as % of Reach Setting Fault Location as % of Reach Setting Figure 11 Quadrilateral Single-Phase-to-Ground Faults Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...

  • Page 10: Directional Elements

    Figure 12 Quadrilateral Phase-to-Phase Faults Mho Distance Elements Directional Elements The SEL-411L uses mho characteristics for phase and The SEL-411L includes a number of directional elements ground distance protection. Two zones are fixed in the for supervision of overcurrent elements and distance ele- forward direction, and the remaining three zones can be ments.

  • Page 11: Broken Conductor Detection

    Breaker diag- The BCD element is designed to detect a conductor break nostic reports from the SEL-411L provide you compara- before it converts into a shunt fault. The BCD element tive breaker information that you can use for advanced, can help in mitigating possible fire or public hazard.

  • Page 12: Application Examples

    Serial Channels (E87CH = 3SM) and for future requirements. Figure 17 shows an SEL-411L set to 3SM, in which the Bus 1 relay uses two serial channels to communicate with two remote peers in a three-terminal application. If two chan- nels are installed, connecting each relay with both of its remote peers, set E87CH in all relays to 3SM.

  • Page 13: Additional Features

    Figure 21 and Figure 22 show close-up views of the front (12 Pushbutton, 24 Target LED Option) panel of the SEL-411L. The front panel includes a 128 x 128 pixel, 3" x 3" LCD screen; LED target indicators; and pushbuttons with indicating LEDs for local control func- tions.

  • Page 14: Bay Control

    Circuit Breaker Operations From the NAVIG Front Panel Figure 25 Double Bus/Double Breaker Figure 23–Figure 26 are examples of some of the select- able one-line diagrams in the SEL-411L. Select the one- BAYNAME line diagram from the Bay settings. Additional settings BUSNAM1 BUSNAM2 for defining labels and analog quantities are also found in the Bay settings.

  • Page 15: Rack-Type Breakers Mosaics

    Figure 27 Screens for Circuit Breaker Selection Rack-Type Breakers Mosaics slide-in label set is included with the SEL-411L. You can use templates supplied with the relay or hand label sup- plied blank labels and print label sets from a printer.

  • Page 16: Advanced Display Points

    Control Inputs and Outputs ALARM POINTS *Unauthorized Access The SEL-411L includes positions for as many as three I/O *LOP Asserted boards. You can select these in the following configurations: *SF6 Low Bk1 ➤ Eight optoisolated, independent level-sensitive inputs; 13 standard Form A and two standard Form C contact outputs ➤...

  • Page 17: Communications Features

    DNP3 masters. Ethernet Card Use popular Telnet applications for easy terminal com- munications with SEL relays and other devices. Transfer The Ethernet card provides the ability for the relay to accept data at high speeds for fast file uploads. The Ethernet IEEE 1588 PTPv2 for data time synchronization.

  • Page 18: Sntp Time Synchronization

    Use PRP to provide seamless recovery from any single remote analog outputs to virtually any analog quantity Ethernet network failure, in accordance with IEC 62439-3. available in the relay. You can also use SEL OGIC The Ethernet network and all traffic are fully duplicated math variables to develop custom analog quantities with both copies operating in parallel.
  • Page 19 Outstation relay summary event reports, and settings groups. IEEE C37.118 Phasor measurement protocol. SEL protocol for exchanging digital and analog information among SEL relays and for use as low-speed termi- IRRORED nal connection. Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...

  • Page 20: Flexible Control Logic And Integration Features

    Relay Word can be used in these equations. remote control enable with 64 latching control points. For complex or unique applications, these expanded Program latch set and latch reset conditions with SEL OGIC functions allow superior flexibility.
  • Page 21 Thermal or rolling interval demand and peak demand. A, B, C MW, MVAR, MVA, single-phase Thermal or rolling interval demand and peak demand. MW, MVAR, MVA, three-phase Thermal or rolling interval demand and peak demand. Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...

  • Page 22: Oscillography And Event Reporting

    Use this feature to gain a broad perspective of relay ele- Each relay provides event reports for analysis with soft- ment operation. Items that trigger an SER entry are select- E ® ware such as SEL-5601-2 Event Soft- SYNCHRO able and can include as many as 250 monitoring points, ware.

  • Page 23: Substation Battery Monitor For Dc Quality Assurance

    SEL-411L relays then operation count. use this information to calculate a fault location. Figure 34 shows the traveling waves captured at each terminal.

  • Page 24: Diagrams And Dimensions

    Complies with 21 CFR 1040.10 and 1040.11, except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007. i7029g Figure 37 4U Rear Panel, Terminal Block, One (INTD) I/O Board Option SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
  • Page 25 Laser Notice No. 50, dated June 24, 2007. i7031g Figure 38 5U Rear Panel, Terminal Block, Two (INTD and INT7) I/O Board Option i6287a Figure 39 6U Rear Panel, Connectorized Terminal Block, Three (INTC, INT7, and INTE) I/O Board Option Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 26 IN02 IN03 IN04 IN05 IN06 IN07 IN08 MONITOR POWER Vdc 1 Vdc 2 – – – i7240a Figure 40 7U Rear Panel, Terminal Block, Four (Two INT4 and Two INT8) I/O Board Option SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
  • Page 27 Figure 41 Dimensions for Rack- and Panel-Mount Models Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...

  • Page 28: Models And Options

    This manual is applicable to the ➤ Firmware options SEL-411L-0, -1, and -A relays. Not all the features, func- ➢ See Table 5 tions, and applications detailed in this manual apply to ➤...
  • Page 29 Screw-terminal block inputs inputs ➢ Connectorized ➤ Ethernet card options Contact the SEL factory or your local Technical Service ➢ Ethernet card with port combinations of: Center for particular part number and ordering informa- ➣ Four copper (10BASE-T/100BASE-TX) tion (see Technical Support on page 42). You can also ➣...
  • Page 30 Table 5 Firmware Options (Sheet 2 of 3) SEL-411L Firmware Options SEL-411L-0 SEL-411L-1 SEL-411L-A Directional (Phase, Negative-Sequence, Zero-Sequence) • • • High-Speed Distance and High-Speed Directional • Independent and Common Step-Distance Timers • • • Pilot Protection (POTT, PUTT, DCB, DCUB, DTT) •...
  • Page 31 • • = Standard feature * = Optional feature Table 6 summarizes the communications cards options (see Section 2: Installation in the SEL-411L Instruction Manual for more information). Table 6 Communications Cards Options (Excluding EIA-232 Card) (Sheet 1 of 3)
  • Page 32 Bay Position: Bay 1 or 2 Model Option Table Digit: C 1300nm FIBER 87L Communication: 1300 nm, Serial Communications Medium: fiber Connector Type: ST Bay Position: Bay 1 or 2 Model Option Table Digit: D SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.

  • Page 33: Specifications

    24–48 Vdc 5 A Nominal: 100 A Operational Voltage Range: 18–60 Vdc A/D Current Limit (Peak) Vdc Input Ripple: 15% per IEC 60255-26:2013 1 A Nominal: 49.5 A 5 A Nominal: 247.5 A Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 34 10 Adc 10 Adc (L/R = 40 ms) 250 Vdc 10 Adc 10 Adc (L/R = 20 ms) Note: Do not use hybrid control outputs to switch ac control signals. These outputs are polarity-dependent. SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
  • Page 35 Min. TX Power: –19 dBm  0.8 Vdc Logic Low Threshold: Max. TX Power: –14 dBm Input Impedance: > 1 k RX Sensitivity: –32 dBm Rated Insulation Voltage: 150 Vdc Sys. Gain: 13 dB Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 36 Electrostatic Discharge IEC 61000-4-2:2008 (ESD): IEEE C37.90.3-2001 Contact I/O 18 AWG (0.8 mm 10 AWG (5.3 mm Contact: Other Connection 18 AWG (0.8 mm 10 AWG (5.3 mm ±8 kV Air Discharge: ±15 kV SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.

  • Page 37: Reporting Functions

    8000 samples per second, 3 dB low-pass analog filter cut-off frequency Environmental of 3000 Hz Digital Filtering Product Standards: IEC 60255-27:2013 Cold, Operational: IEC 60068-2-1:2007 Full-cycle cosine and half-cycle Fourier filters after low-pass analog and Test Ad: 16 hours at –40°C digital filtering Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 38 5 to 100%, 1% steps Sensitivity 5 A Model: 0.5 A secondary 1 A Model: 0.1 A secondary (Minimum sensitivity is controlled by the pickup of the supervising phase and residual overcurrent elements for each zone.) SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
  • Page 39 OFF, 0.05–20 A secondary, 0.01 A steps Pickup Range, Transient Overreach: 5% of pickup Undervoltage Blocking: 20.00–200.00 V (Wye) Maximum Operating Time: 0.75 cycles Pickup Accuracy, Undervoltage Blocking: ± 2% ± 2 V Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 40 Accuracy (Steady State) PT 100, NI 100, NI 120, and CU 10 RTD-Types Supported, Field Selectable As long as 500 m Fiber-Optic Cable to SEL-2600 RTD Module 5 A Model: ± 5% of setting plus ± 0.01 A for SIR (source to line impedance ratio) <...

  • Page 41: Metering Accuracy

    At 0.1 • I Power Factor Unity: ± 0.4% Power Factor 0.5 Lag, 0.5 Lead: ± 0.7% At 1.0 • I Power Factor Unity: ± 0.4% Power Factor 0.5 Lag, 0.5 Lead: ± 0.4% Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...

  • Page 42: Technical Support

    Technical Support We appreciate your interest in SEL products and services. If you have questions or comments, please contact us at: Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163-5603 U.S.A. Tel: +1.509.338.3838 Fax: +1.509.332.7990 Internet: selinc.com/support Email: info@selinc.com SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
  • Page 43 Schweitzer Engineering Laboratories, Inc. SEL-411L Data Sheet...
  • Page 44 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 Tel: +1.509.332.1890 • Fax: +1.509.332.7990 permission. SEL products appearing in this document may be covered by U.S. and Foreign selinc.com • info@selinc.com patents.

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