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Schweitzer Engineering Laboratories SEL-300G Instruction Manual

Schweitzer Engineering Laboratories SEL-300G Instruction Manual

Multifunction generator relay

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SEL-300G

MULTIFUNCTION GENERATOR RELAY

INSTRUCTION MANUAL

SCHWEITZER ENGINEERING LABORATORIES

2350 NE HOPKINS COURT

PULLMAN, WA USA 99163-5603

TEL: (509) 332-1890

FAX: (509) 332-7990

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Page 1 SEL-300G MULTIFUNCTION GENERATOR RELAY INSTRUCTION MANUAL SCHWEITZER ENGINEERING LABORATORIES 2350 NE HOPKINS COURT PULLMAN, WA USA 99163-5603 TEL: (509) 332-1890 FAX: (509) 332-7990...
Page 2 CAUTION: Do not apply reverse polarity dc voltage or ac ATTENTION: N’appliquer pas un voltage CC avec polarité voltage to terminals Z25 and Z26 of SEL-300G Relays inversée ou un voltage CA, sur les bornes Z35 et Z26 des relais rated for 24/48 Vdc applications.
Page 3 SEL-300G INSTRUCTION MANUAL TABLE OF CONTENTS SECTION 1: INTRODUCTION AND SPECIFICATIONS SECTION 2: RELAY ELEMENT SETTINGS SECTION 3: AUXILIARY FUNCTION SETTINGS ® SECTION 4: CONTROL EQUATIONS OGIC SECTION 5: INSTALLATION SECTION 6: ENTER RELAY SETTINGS SECTION 7: RELAY COMMISSIONING SECTION 8:...
Page 5 Settings Sheet—Revised ranges of CTR, CTRD, 87N1P, & 87N2P Section 10—Added reference to AB phase; clarified FREQ. Section 11—Changed symbols for 64G1 and 64G2 Section 12—Changed upgrade instructions to include SEL-2020 or SEL-2030 Communications Processor connection. Appendix A—Updated firmware versions. SEL-300G Instruction Manual Date Code 20020206...
Page 6 Section 11—Revised Event Report Columns and Sample Event Report to reflect 78 element; reduced number of 15-cycle event reports to 29. Appendix A—Updated firmware versions. Appendix D—Revised sample DNA message outputs. Appendix E—Revised Relay Word bit lists; revised sample CEV outputs. Date Code 20020206 SEL-300G Instruction Manual...
Page 7 Pages 13-10 and 13-15. Appendix A—Updated firmware versions. 19980731 Add danger warnings (in English and French) against electrical shock, fire, energy/high current levels and mechanical hazards to be in compliance with North American Product Safety guidelines. SEL-300G Instruction Manual Date Code 20020206...
Page 8 Commissioning Worksheet to Section 7: Relay Commissioning; Moved VNOM and INOM settings from Global to Group setting; Added MET DIF and EVE DIF command descriptions; Clarified the calculation of the 64G2P setting. 19980130 Initial Release. Date Code 20020206 SEL-300G Instruction Manual...
Page 9: Table Of Contents
Table 1.1: SEL-300G Relay Instruction Manual Task Map ..............1-1 Table 1.2: SEL-300G Relay Models......................1-2 Table 1.3: SEL-300G Relay Hardware Models ..................1-3 Table 1.4: SEL-300G Relay (Screw-Terminal Block) Part Number Creation Table ......1-13 Table 1.5: SEL-300G Relay (Connectorized) Part Number Creation Table ..........1-15 SEL-300G Instruction Manual...
Page 10 Figure 1.1: Large Generator Primary and Backup Protection..............1-6 Figure 1.2: Generator Differential Zone May Include Transformer ............1-7 Figure 1.3: Simple Protection for Resistance Grounded Generators ............1-7 Figure 1.4: Generator Thermal Protection with SEL-2600 & SEL-300G Relay ........1-8 Figure 1.5: SEL-300G Relay Communication Connection Examples............1-11 Date Code 20020206...
Page 11: Section 1: Introduction And Specifications
This instruction manual covers the SEL-300G Relay family. This manual contains the information you need to select, set, install, test, operate, and maintain any SEL-300G Relay. You probably will not need to review the whole book to perform the specific tasks for which you are responsible.
Page 12: Typographic Conventions
Position: RETURN • Sections of this instruction manual are shown in bold italics: Section 1: Introduction and Specifications. SEL-300G R ELAY ODELS This instruction manual covers the following SEL-300G Relay models: Table 1.2: SEL-300G Relay Models ® Synch- Differential Compatible Modbus...
Page 13: Table 1.3: Sel-300G Relay Hardware Models
They should not be used to order an SEL-300G Relay. Refer to SEL-300G Relay Ordering at the end of this section. Throughout this instruction manual, when differences among the SEL-300G Relay models in Table 1.3 are explained, model numbers are referenced for clarity.
Page 14: Instruction Manual Sections Overview
OGIC and serial port settings. The Settings Sheets are single-sided and can be photocopied and filled out to set the SEL-300G Relay. Note that these sheets correspond to the serial port SET commands listed in Table 6.1. Date Code 20020206...
Page 15 Appendix B: Differential Connection Diagrams • Appendix C: SEL Distributed Port Switch Protocol • Appendix D: Configuration, Fast Meter, and Fast Operate Commands • Appendix E: Compressed ASCII Commands ® • Appendix F: Modbus RTU Communications Protocol SEL-300G Instruction Manual Date Code 20020206...
Page 16: Sel-300G Relay Protection Applications
Neutral voltage for 100% stator ground protection is taken from the secondary of the grounding transformer. The SEL-300G Relay neutral voltage input is rated for application up to 300 Vac, which means that, for most applications, an auxiliary voltage transformer will not be necessary between the grounding transformer secondary and this relay.
Page 17: Feature-Rich Generator Backup Protection
With or without the differential elements, you get large-machine protection, monitoring, and control that is priced for application on nearly any size machine. The SEL-300G Relay offers you the freedom to benefit from integrated protection, SER and event reporting, high-accuracy metering, and breaker and dc monitoring functions without the installation and maintenance expense of purchasing those components individually.
Page 18: Solidly Grounded Machine Protection
Introduction and Specifications Solidly Grounded Machine Protection The SEL-300G Relay is suitable to protect solidly grounded machines, with the exception that the relay does not provide 100% stator ground fault protection for these machines. Phase, negative-sequence, and neutral overcurrent fault detection methods, plus optional differential overcurrent protection, are provided.
Page 19: Sel-300G Relay Additional Features
Thermal Protection (included in models compatible with SEL-2600 RTD Module). SEL-300G R ELAY DDITIONAL EATURES In addition to the protection functions outlined above, the SEL-300G Relay offers advanced measuring and monitoring capabilities not found on other generator relays. • Extensive High-Accuracy Metering Capabilities •...
Page 20: Power Supply And Optoisolated Input Dc Voltages
High Current Interrupting Output Contacts SEL-300G Relay purchased with the additional I/O board may be further specified to include high current interrupting output contacts. These contacts use an integrated-gate bipolar junction transistor to interrupt contact current in a controlled manner. This increases the contact interrupt rating, prevents contact arcing, and prevents the inductive voltage spike which occurs when an inductive current is interrupted by a standard contact.
Page 21: Serial Communication Connections (Typical)
SEL-300G Relay (#2) . . . Front Panel Front Panel SEL-300G ONNECT TO THE PORT F PORT F ELAYS INDIVIDUALLY VIA THE RONT ANEL ERIAL DWG: M300G031 Figure 1.5: SEL-300G Relay Communication Connection Examples SEL-300G Instruction Manual Date Code 20020206...
Page 22: Sel-5801 Cable Sel Ector Software
ELAY RDERING To obtain a quotation or place an order for an SEL-300G Relay, it is helpful to have a relay part number. The information below will help you create a part number for the SEL-300G Relay and describe some additional information that you may wish to include when you place your relay order.
Page 23: Create A Relay Part Number (Screw-Terminal Block Option)
1-13 Create a Relay Part Number (Screw-Terminal Block Option) The SEL-300G Relay part number for the screw-terminal block relay has the following form: 0 3 0 0 G Choices based on the following selections determine the value of each option a through j.
Page 24 1-14 Introduction and Specifications Example 1: The part number 0300G11H2256X3X describes an SEL-300G Relay (screw-terminal block option) with the following features and options: • Standard unit plus the phase differential protection • Rack mount with eight output and six input contacts plus twelve additional high interrupting output and eight additional input contacts •...
Page 25: Create A Relay Part Number (Connectorized Option)
1-15 Create a Relay Part Number (Connectorized Option) The SEL-300G Relay part number for a Connectorized relay has the following form: 0 3 0 0 G The answers to the following questions will determine the value of each option a through j.
Page 26: Special Specifications
1-16 Introduction and Specifications Example 1: The part number 0300G3Y32212X6X describes an SEL-300G Relay (Connectorized option) with the following features and options: • Standard unit plus and synch-check and phase differential protection • Panel mount with eight output and six input contacts plus twelve additional output and eight additional input contacts •...
Page 27: Relay Specifications And Options
125/250 Vdc or Vac Range: 85–350 Vdc or 85–264 Vac Burden: <25 W 48/125 Vdc or 125 Vac Range: 38–200 Vdc or 85–140 Vac Burden: <25 W 24/48 Vdc Range: 18–60 Vdc polarity dependent Burden: <25 W SEL-300G Instruction Manual Date Code 20020206...
Page 28 IEEE C37.90.1/D6, 2.5 kV peak common CE: Mark (available only in screw-terminal block mode, 2.5 kV differential mode oscillatory, 4 kV at version). 2.5 kV and 5 kHz fast transient Generic Standard: EN 50082-2: 1995 Date Code 20020206 SEL-300G Instruction Manual...
Page 29: Processing Specifications
Definite-Time Setting Range: 0.00–400.00 s Maximum Time-Delay Pickup Time: 25 ms at 60 Hz (Max) Accuracy: ±0.1%, ±4.2 ms at 60 Hz Definite-Time Delay Accuracy: ±0.1%, ±4.2 ms at 60 Hz Linear Reset Time: 0.00–400.00 s SEL-300G Instruction Manual Date Code 20020206...
Page 30 ±0.1%, ±4.2 ms at 60 Hz Inverse-Time Element Time Dial: K = 1 to 100 s Linear Reset Time: 240 s fixed Inverse-Time Timing Accuracy: ±4%, ±50 ms at 60 Hz for |I above 1.05 multiples of pickup Date Code 20020206 SEL-300G Instruction Manual...
Page 31 Differential Ratio Setting Range: 0.0 to 5.0 multiples of pickup Pickup Time: 50 ms at 60 Hz (Max) Voltage Definite-Time Delay: 0.00–400.00 s Restraint Maximum Definite-Time Delay Type: Linear restraint Accuracy: ±0.1%, ±4.2 ms at 60 Hz SEL-300G Instruction Manual Date Code 20020206...
Page 32 T = Temperature of relay via Temperatures STATUS command PT 100, NI 100, NI 120, and CU 10 RTD-Types Supported, Field Selectable Trip, Alarm, and Ambient/Load-Current Bias Settings Up to 500 m fiber-optic cable to SEL-2600 RTD Module Date Code 20020206 SEL-300G Instruction Manual...
Page 33 ±90° (power factor = 0) Metering accuracy calculation example for currents I , and due to preceding stated temperature coefficient: For temperature of 40°C, the additional error for currents I and I [(0.0002%)/(°C) ] * (40°C–20°C) = 0.08% SEL-300G Instruction Manual Date Code 20020206...
Page 35 Setting Calculation ......................2-20 Information Needed.....................2-20 Recommendations .......................2-20 Volts/Hertz Tripping ....................2-20 Element Operating Characteristics..................2-21 Reverse/Low-Forward Power Element ..................2-25 Element Description......................2-25 Functional Description ....................2-25 Setting Descriptions ....................2-26 Relay Word Bits ......................2-27 Setting Calculation ......................2-27 Information Needed.....................2-27 SEL-300G Instruction Manual Date Code 20020206...
Page 36 I.E.C. Class A Curve (Standard Inverse): C1 .............2-51 U.S. Inverse Curve: U2....................2-51 I.E.C. Class B Curve (Very Inverse): C2 ..............2-51 U.S. Very Inverse Curve: U3..................2-51 I.E.C. Class C Curve (Extremely Inverse): C3............2-51 U.S. Extremely Inverse Curve: U4 ................2-51 Date Code 20020206 SEL-300G Instruction Manual...
Page 37 Out-of-Step Element–Single Blinder Scheme................2-22 Element Description......................2-22 Functional Description ....................2-22 Setting Descriptions ....................2-25 Relay Word Bits ......................2-26 Settings Calculation ......................2-26 Information Needed.....................2-26 Recommendations .......................2-26 Out-of-Step Element–Double Blinder Scheme ................2-28 Element Description......................2-28 Functional Description ....................2-28 Settings Descriptions....................2-31 SEL-300G Instruction Manual Date Code 20020206...
Page 38 Pole Open Logic..........................2-51 Element Description......................2-51 Functional Description ....................2-51 Setting Descriptions ....................2-51 Relay Word Bits ......................2-51 Pole Open Logic Setting Calculation ..................2-52 Recommendations .......................2-52 Inadvertent Energization Protection....................2-52 Breaker Failure Protection ......................2-52 Differential Protection ........................2-52 Synchronism Checking .......................2-52 Date Code 20020206 SEL-300G Instruction Manual...
Page 39 Recommended Protection Elements by Generator Grounding Method........2-5 Table 2.2: RTD Resistance vs. Temperature ..................2-49 FIGURES Figure 2.1: Relay Processing Order......................2-1 Figure 2.2: SEL-300G Relay Setting Categories..................2-3 Figure 2.3: PTRN, CTRN Setting Examples...................2-8 Figure 2.4: Phase Rotation Settings ......................2-10 Figure 2.5 Distance Element Operating Characteristics ..............2-16 Figure 2.6: Zone 1 Mho Element Logic ....................2-16...
Page 40 Figure 2.51: Frequency Element Logic ....................2-38 Figure 2.52: Example Turbine Operating Limitations During Abnormal Frequency......2-42 Figure 2.53: Abnormal Frequency Protection Logic Diagram..............2-43 Figure 2.54: Winding RTD Trip Characteristics with BLMT = 2.00 .............2-48 Figure 2.55: Pole Open Logic Diagram....................2-51 Date Code 20020206 SEL-300G Instruction Manual...
Page 41: Section 2: Relay Element Settings
The SEL-300G Relay tracks the frequency of the ac voltage. The relay adjusts the sampling rate to the present system frequency (in the range from 20 to 70 Hz) and takes 16 digital samples of the analog signals every cycle.
Page 42: Element Processing
Event report and SER record storage, and • Responding to serial port and front-panel commands. ELAY ETTINGS VERVIEW You configure the SEL-300G Relay generator protection and monitoring functions by entering settings in three categories, described by Figure 2.2. Date Code 20020206 SEL-300G Instruction Manual...
Page 43 SET R, SHOWSET R SER1 - SER4 Settings ALIAS Settings DWG: M300G040 Figure 2.2: SEL-300G Relay Setting Categories The relay is equipped with two protection element setting groups, Group 1 and Group 2. Group 1 and Group 2 contain •...
Page 44 Refer to Section 6: Enter Relay Settings for complete relay Settings Sheets showing each of the relay settings and their ranges in the order that they are entered. Date Code 20020206 SEL-300G Instruction Manual...
Page 45: Protection Element Selection Guidelines
ROTECTION LEMENT ELECTION UIDELINES The SEL-300G Relay provides protection elements suitable for applications protecting many different generators. Use Table 2.1 to help select the protection elements to enable for specific applications. Table 2.1: Recommended Protection Elements by Generator Grounding Method...
Page 46: Relay Configuration Settings
ONFIGURATION ETTINGS The SEL-300G Relay provides several settings that configure the relay for the particular generator being protected. These settings appear in Group settings or in the Global settings. Note: All relay settings are made in secondary quantities (amps, volts, ohms, or watts).
Page 47 ú • ë û INOM where generator rated output, MVA generator rated phase-to-phase voltage, kV phase current transformer ratio to one The relay directional power, negative-sequence overcurrent, and differential elements use the INOM setting. SEL-300G Instruction Manual Date Code 20020206...
Page 48 Enable O/C Protection (Y, N) E50 = N Enable 87-Input O/C Protection (Y, N) E50_87 = N (0300G1 & 0300G3) Enable Time-O/C Protection (Y, N) E51 = Y Enable Backup Protection (N, D, V, C) EBUP = D Date Code 20020206 SEL-300G Instruction Manual...
Page 49: Global Configuration Setting Descriptions (Set G)
Length of Prefault in Event Report (1 to LER-1 cycles) PRE = 4 The LER and PRE settings configure the full-length event reports that the SEL-300G Relay saves. The LER setting defines the event report length, either 15 or 30 cycles.
Page 50 Equation logic results must remain stable before the relay enables a new setting group. Typically, a one second delay is sufficient. Additional description and examples are ® provided in Section 4: SEL Control Equations. OGIC Date Code 20020206 SEL-300G Instruction Manual...
Page 51: Setting Group Selection
Element Description Functional Description The SEL-300G Relay provides a two-zone phase mho distance element designed for backup distance protection for system phase-to-phase and three-phase faults. Each zone is equipped with independently settable forward reach, reverse offset, maximum torque angle, step-up transformer compensation, and definite-time delay.
Page 52: Setting Descriptions
30°, set Z1CMP = 30°. Zone 1 Phase Distance Time Delay (0.00 to 400.00 s) Z1D = 0.00 The Z1D setting defines the Zone 1 element definite-time delay. Date Code 20020206 SEL-300G Instruction Manual...
Page 53 Note: Loss-of-potential (60LOP) supervision is built into the element logic so it does not need to be added to the 21PTC SEL Control Equation setting. OGIC SEL-300G Instruction Manual Date Code 20020206...
Page 54: Relay Word Bits
Figure 5.14, set the distance element offsets to 0.1 ohms. If current transformers are connected as in Figure 5.16 and Figure 5.17, a nonzero offset can provide some backup phase fault protection for the generator. Offsets for Zone 1 and Zone 2 should be set equal, unless Date Code 20020206 SEL-300G Instruction Manual...
Page 55: Phase Distance Tripping
Due to the long reach setting, many phase distance relays would pick up during heavy load. The SEL-300G Relay distance elements are supervised by a simple load encroachment function (when enabled) that prevents distance element misoperation under heavy load.
Page 56 Enable Vab - Vbc -30° mAB1 Settings MTA1 mBC1 Logic Similar to mAB1 mCA1 Logic Similar to mAB1 Zone 2 Logic Similar to Zone 1 DWG: M300G230 Figure 2.6: Zone 1 Mho Element Logic Date Code 20020206 SEL-300G Instruction Manual...
Page 57 Overexcitation occurs when a generator or transformer magnetic core becomes saturated. When this happens, stray flux is induced in nonlaminated components, causing overheating. In the SEL-300G Relay, overexcitation is detected by a volts/hertz element. The SEL-300G Relay provides a sensitive definite-time volts/hertz element, plus a tripping element with a composite operating time.
Page 58 Level 2 Time-Delay Two (0.00–400.00 s) 24D2D2 = 6.00 The SEL-300G Relay asserts the 24C2 Relay Word bit without time delay when the machine volts/hertz exceed either the 24D2P1 or 24D2P2 setting. If the volts/hertz percentage is greater than the 24D2P1 setting, but less than the 24D2P2 setting, the relay asserts the 24C2T Relay Word bit in 24D2D1 seconds.
Page 59 The 24IP setting defines the pickup point of the inverse-time portion of the operating time curve. The SEL-300G Relay asserts the 24C2 Relay Word bit without time delay when the machine volts/hertz exceed the 24IP setting. The 24IC setting defines the element operating time curve shape.
Page 60 Volts/Hertz tripping elements are usually used to trip the main generator breaker and the field ® breaker and transfer auxiliaries, if needed. Refer to Section 4: SEL Control Equations OGIC for more detail and examples of tripping SEL Control Equations. OGIC Date Code 20020206 SEL-300G Instruction Manual...
Page 61 Figure 2.8: Dual-Level Volts/Hertz Time-Delay Characteristic, 24CCS=DD Transformer Limit Curve on Generator Voltage Base Generator Manufacturer's Recommended Protection Curve 24D2P2=118% 24D2D2=1.2 s Relay Characteristic 24IP=108% .001 1000 Time (Minutes) DWG: M300G044 Figure 2.9: Composite Inverse/Definite-Time Overexcitation Characteristic, 24CCS=ID SEL-300G Instruction Manual Date Code 20020206...
Page 62 ö æ ö FNOM ç ÷ ç ç ÷ ÷ • ç freq VNOM ÷ è ø − ç ÷ ç ÷ ç ÷ è ø Figure 2.10: Volts/Hertz Inverse-Time Characteristic, 24IC = 0.5 Date Code 20020206 SEL-300G Instruction Manual...
Page 63 ö FNOM ç ÷ ç ç ÷ ÷ • ç freq VNOM ÷ è ø − ç ÷ 24IP ç ÷ ç ÷ 100% è ø Figure 2.11: Volts/Hertz Inverse-Time Characteristic, 24IC = 1 SEL-300G Instruction Manual Date Code 20020206...
Page 64 ö FNOM ç ÷ ç ç ÷ ÷ • ç ÷ freq VNOM è ø − ç ÷ 24IP ç ÷ ç ÷ 100% è ø Figure 2.12: Volts/Hertz Inverse-Time Characteristics, 24IC = 2 Date Code 20020206 SEL-300G Instruction Manual...
Page 65 In applications of other prime movers, motoring can cause mechanical damage and/or unsafe operating conditions. Antimotoring protection in the SEL-300G Relay is provided by a reverse/low-forward power element. This element measures the real-power flow from the generator. If the generator real-power output drops below the element threshold, the relay asserts the Relay Word bit associated with the instantaneous threshold and starts the element definite timer.
Page 66 You may wish to torque control this function with the !3PO condition to disable the reverse power elements when the generator breaker is open. Date Code 20020206 SEL-300G Instruction Manual...
Page 67 The Control Equations used to implement sequential generator tripping are described in OGIC ® Section 4: SEL Control Equations of this instruction manual. OGIC SEL-300G Instruction Manual Date Code 20020206...
Page 68: Reverse-Power Tripping
Control Equations for more detail and examples of tripping SEL Control OGIC OGIC Equations. Element Operating Characteristics 32P1 32P2 Operate Operate Region Region 32P1P 32P2P Power Power Threshold Threshold DWG: M300G046 Figure 2.14: Reverse/Low-Forward Power Element Operating Characteristic Date Code 20020206 SEL-300G Instruction Manual...
Page 69: Loss-Of-Field Element
The SEL-300G Relay detects loss-of-field using a pair of offset mho circles. Since loss-of-field affects all three phases, the condition is a balanced one. The SEL-300G Relay uses measured positive-sequence impedance to form the mho circles.
Page 70: Setting Descriptions
The 40Z1 Relay Word bit asserts without time delay when the measured positive- sequence impedance falls within the Zone 1 mho circle defined by the offset and diameter settings. The 40Z1D Relay Word bit asserts 40Z1D seconds after 40Z1 asserts. Date Code 20020206 SEL-300G Instruction Manual...
Page 71: Relay Word Bits
Zone 1 Loss-of-Field Pickup With Definite- Tripping, SER Triggering 40Z1T Time Delay 40Z2 Zone 2 Loss-of-Field Pickup Indication, Event Triggering, SER Triggering, Testing 40Z2T Zone 2 Loss-of-Field Pickup With Definite- Tripping, SER Triggering Time Delay SEL-300G Instruction Manual Date Code 20020206...
Page 72: Setting Calculation
40Z1D = seconds Set the Zone 2 diameter equal to the machine direct axis reactance, Xd, in secondary ohms. 40Z2P = Ω Set the Zone 2 offset equal the Zone 1 offset. − Ω Date Code 20020206 SEL-300G Instruction Manual...
Page 73 The traditional application of this scheme provides accelerated (0.25 second) Zone 2 tripping in the event of an undervoltage condition occurring during the loss-of-field. To achieve this accelerated tripping, it is necessary to use a SEL Control Equation variable and a positive- OGIC SEL-300G Instruction Manual Date Code 20020206...
Page 74: Element Operating Characteristics
OGIC tripping logic and detailed setting examples. Element Operating Characteristics -Xd' Zone 1 40Z1P = 1.0 pu 40Z2P = Xd Zone 2 DWG: M300G047 Figure 2.17: Loss-of-Field Element Operating Characteristic, Negative Zone 2 Offset Date Code 20020206 SEL-300G Instruction Manual...
Page 75: Negative-Sequence Overcurrent Elements
I The SEL-300G Relay provides a negative-sequence definite-time overcurrent element suitable for unbalance alarm application and an I t time-overcurrent element for unbalance current tripping.
Page 76: Relay Word Bits
Indication, Event Triggering, Definite-Time Delay SER Triggering Level 2 Neg.-Seq. Time-O/C Pickup Indication, Event Triggering, 46Q2 SER Triggering, Testing Level 2 Neg.-Seq. Time-O/C Trip Tripping, SER Triggering 46Q2T 46Q2R Level 2 Neg.-Seq. Time-O/C Reset Testing Date Code 20020206 SEL-300G Instruction Manual...
Page 77: Setting Calculation
Negative-sequence overcurrent tripping generally is applied to the generator main breaker only. This permits rapid resynchronization after the system unbalance condition is cleared. Refer to ® Section 4: SEL Control Equations for more detail and examples of tripping SEL OGIC OGIC Control Equations. SEL-300G Instruction Manual Date Code 20020206...
Page 78: Element Operating Characteristics
Setting Torque Control 46QTC Relay |I2| percent Word Bits 46Q1 Setting 46Q1D 46Q1T 46Q1P 46Q2 46Q2 46Q2P Negative- 46Q2T Sequence Time- 46Q2R Overcurrent 46Q2K Element DWG: M300G058 Figure 2.19: Negative-Sequence Overcurrent Element Logic Diagram Date Code 20020206 SEL-300G Instruction Manual...
Page 79 2-39 10000 1000 46Q2K = 100 46Q2P minimum = 2% 0.01 100% 1000% 10000% I2 (percent of INOM) DWG: M300G150 seconds æ ö ç ÷ INOM è ø Figure 2.20: Negative-Sequence Time-Overcurrent Operating Characteristic SEL-300G Instruction Manual Date Code 20020206...
Page 80: Overcurrent Elements
Relay Element Settings VERCURRENT LEMENTS Element Description Functional Description The SEL-300G Relay offers an assortment of nondedicated overcurrent elements for protection, indication, and control functions. Overcurrent Protection, All Relay Models All relay models provide the following overcurrent elements: • Two levels of phase definite-time overcurrent, 50P1 and 50P2 •...
Page 81: Setting Descriptions
Level 1 Neutral Ground O/C Time Delay (0.00–400.00 s) 50N1D = 0.10 Level 2 Neutral Ground O/C Pickup (OFF, 0.25–100.00 A) 50N2P = 8.00 Level 2 Neutral Ground O/C Time Delay (0.00–400.00 s) 50N2D = 30.00 SEL-300G Instruction Manual Date Code 20020206...
Page 82: Definite-Time 50/87 Overcurrent Settings
Neutral Time-O/C Curve (U1–U5, C1–C5) 51NC = U2 Neutral Time-O/C Time-Dial (0.50–15.00, U curves) 51NTD = 3.00 (0.05–1.00, C curves) Neutral Time-O/C EM Reset (Y, N) 51NRS = Y 51N Torque-Control Setting 51NTC = 1 Date Code 20020206 SEL-300G Instruction Manual...
Page 83: Residual Time-Overcurrent Settings
51G Torque-Control Setting 51GTC = 1 The SEL-300G Relay provides inverse-time overcurrent elements for neutral and residual current. Each of the elements includes a settable pickup, curve shape, and time-dial. Ten curve shapes are available. Curves U1–U5 emulate the popular North American induction disk relays.
Page 84 87 Input Level 2 Residual O/C With Tripping, Control, SER Definite-Time Delay Triggering Neutral Time-Overcurrent Pickup Indication, Event Triggering, SER Triggering, Testing 51NT Neutral Time-Overcurrent Trip Tripping, SER Triggering Neutral Time-Overcurrent Reset Testing 51NR Date Code 20020206 SEL-300G Instruction Manual...
Page 85: Neutral Overcurrent Setting Calculation
An inverse curve shape (U2) and time-dial of 3.0 provide 6.5 second tripping for 1.0 A secondary faults. 51NC 51NTD Electromechanical reset emulation is not necessary and this element may be in service continuously so the torque-control setting is logical 1. 51RS 51NTC SEL-300G Instruction Manual Date Code 20020206...
Page 86: Neutral Overcurrent Tripping
Figure 2.21 and Figure 2.22 show pickup and reset time curves applicable to all instantaneous overcurrent elements in the SEL-300G Relay. These times do not include output contact operating time and are accurate for determining element operation time for use in internal Control Equations.
Page 87 Relay Element Settings 2-47 Maximum Minimum Applied Current (Multiples of Pickup Setting) Figure 2.21: Instantaneous Overcurrent Element Pickup Time Curve Maximum Minimum Applied Current (Multiples of Pickup Setting) Figure 2.22: Instantaneous Overcurrent Element Reset Time Curve SEL-300G Instruction Manual Date Code 20020206...
Page 88 50P1D 50P1P 50P1T 50P2 50P2D 50P2P 50P2T |IN| 50N1 50N1D 50N1T 50N1P 50N2 50N2D 50N2P 50N2T |IG| 50G1 50G1D 50G1T 50G1P 50G2 50G2D 50G2P 50G2T DWG: M300G059 Figure 2.23: Definite-Time Overcurrent Element Logic Diagram Date Code 20020206 SEL-300G Instruction Manual...
Page 89 50H2T 50H2PB 50H2 |IC87| 50H2C 50H2PC |I287| 50Q1 50Q1D 50Q1P 50Q1T 50Q2 50Q2D 50Q2P 50Q2T |IR87| 50R1 50R1D 50R1P 50R1T 50R2 50R2D 50R2P 50R2T DWG: M300G060 Figure 2.24: 87-Input Definite-Time Overcurrent Element Logic Diagram SEL-300G Instruction Manual Date Code 20020206...
Page 90 Time Dial Reset 51GRS Electromechanical Reset? (Y/N) Setting 51GTC Torque Control Reset Timing 51GRS= State Switch Position Logical 1 Closed Electromechanical 1 Cycle Logical 0 Open DWG: M300G051 Figure 2.26: Residual Ground Time-Overcurrent Element 51GT Date Code 20020206 SEL-300G Instruction Manual...
Page 91 ç ÷ • • ç ÷ ç ÷ − − è ø è ø æ ö æ ö ç ÷ ç ÷ • • ç ÷ ç ÷ − − è ø è ø SEL-300G Instruction Manual Date Code 20020206...
Page 92 5 6 7 8 9 .5 .6 .7 .8 .9 5 6 7 8 9 Multiples of Multiples of Pickup Pickup Figure 2.29: U.S. Very Inverse Curve: U3 Figure 2.30: U.S. Extremely Inverse Curve: U4 Date Code 20020206 SEL-300G Instruction Manual...
Page 93 .5 .6 .7 .8 .9 5 6 7 8 9 Multiples of Multiples of Pickup Pickup Figure 2.33: I.E.C. Class B Curve (Very Figure 2.34: I.E.C. Class C Curve Inverse): C2 (Extremely Inverse): C3 SEL-300G Instruction Manual Date Code 20020206...
Page 94: Element Description
Element Description Functional Description The SEL-300G Relay provides a voltage-restrained phase time-overcurrent element and a voltage-controlled phase time-overcurrent element. One of these elements typically is used for system phase fault backup protection to trip the generator in the event of an uncleared phase fault on the system side of the step-up transformer.
Page 95: Setting Descriptions
Control Equation) 51VTC = !60LOP OGIC For system backup protection, the SEL-300G Relay provides a choice of voltage- controlled or voltage-restrained phase inverse-time overcurrent elements or phase distance elements (discussed earlier in this section). The overcurrent elements include a settable pickup, curve shape, and time-dial. Ten curve shapes are available. Curves U1–U5 emulate the popular North American induction disk relays.
Page 96: Relay Word Bits
This value may safely be below maximum load, as the element is only enabled during low-voltage fault conditions. Divide the generator fault duty by the phase current transformer ratio, CTR, to find the element pickup current in secondary amps. ≤ Date Code 20020206 SEL-300G Instruction Manual...
Page 97: Voltage-Restrained Time-Overcurrent Settings
To prevent misoperation if a potential transformer fuse blows, the element is torque controlled by the !60LOP Relay Word bit. With the settings above, the 51V element is enabled as long as there is not a loss-of-potential condition. SEL-300G Instruction Manual Date Code 20020206...
Page 98: Overcurrent Tripping
51CTC Reset 51CRS Electromechanical Reset? (Y/N) Setting 51CTC Torque Control Reset Timing 51CRS= State Switch Position Logical 1 Closed Electromechanical Logical 0 Open 1 Cycle DWG: M300G049 Figure 2.37: Voltage-Controlled Phase Time-Overcurrent Element 51CT Date Code 20020206 SEL-300G Instruction Manual...
Page 99 1 Cycle Logical 0 Open Figure 2.38: Voltage-Restrained Phase Time-Overcurrent Element 51VT 1.00 0.50 0.25 0.25 0.50 1.00 Faulted Phase Voltage DWG: M300G152 VNOM (per unit of Figure 2.39: 51V Element Voltage Restraint Characteristic SEL-300G Instruction Manual Date Code 20020206...
Page 100: Over/Under Voltage Elements
NDER OLTAGE LEMENTS Element Description Functional Description The SEL-300G Relay offers the following over- and undervoltage elements for protection, indication, and control functions. • Two levels of phase undervoltage, 27P1 and 27P2 • Two levels of phase-to-phase undervoltage, 27PP1 and 27PP2 •...
Page 101: Voltage Element Setting Calculation
Pickup settings and time delays are governed by the requirements of the application. Where specific elements typically are applied for torque control, setting guidelines have been provided in sections associated with the controlled element. Set the pickup of unused elements to OFF. SEL-300G Instruction Manual Date Code 20020206...
Page 102 Calculation PHROT |VPP| (minimum phase- to phase voltage magnitude) Relay |VP| Word Setting Bits 27P1P 27P1 27P2P 27P2 |VPP| 27PP1 27PP1 27PP2 27PP2 |V1| 27V1 27V1P DWG: M300G052 Figure 2.40: Undervoltage Element Logic Diagram Date Code 20020206 SEL-300G Instruction Manual...
Page 103 Calculation Relay Word |VP| Bits Setting 59P1P 59P1 59P2P 59P2 |VPP| 59PP1 59PP1 59PP2 59PP2 |VG| 59G1P 59G1 59G2P 59G2 |V1| 59V1 59V1P |V2| 59QP DWG: M300G053 Figure 2.41: Overvoltage Element Logic Diagram SEL-300G Instruction Manual Date Code 20020206...
Page 104: Loss-Of-Potential (60Lop) Protection
Element Description Functional Description The SEL-300G Relay provides an easy method to detect loss of relaying potential caused by blown potential fuses or operation of molded case circuit breakers in the potential circuit secondary. The relay declares a loss-of-potential if there is a 10% drop in the measured positive-sequence voltage with no corresponding change in positive-, negative-, or zero-sequence currents.
Page 105 This function detects stator ground faults in all but the bottom 5%–10% of the generator winding. In this area close to the generator neutral, the neutral voltage does not increase significantly during a generator ground fault. The SEL-300G Relay uses the third-harmonic voltage differential element to detect faults in this area.
Page 106: Setting Descriptions
The 64GTC torque-control setting disables both zones when its result is logical 0. Both zones are enabled when the 64GTC result is logical 1. Note: If 64G2 element is selected to operate in a differential mode, include !60LOP in the torque control equation 64GTC. This will avoid Date Code 20020206 SEL-300G Instruction Manual...
Page 107: Relay Word Bits
Set the balance of tripping functions according to the requirements of the particular generator. Leave these tripping functions in service to protect the generator in the event that a fault occurs during the test sequence. SEL-300G Instruction Manual Date Code 20020206...
Page 108 Element Setting Worksheet,” which is available on the SEL Internet home page at www.selinc.com or by contacting the factory. 1. Operate the generator at no load. Using the SEL-300G Relay METER command, record the values of terminal and neutral third-harmonic voltage.
Page 109: Third-Harmonic Neutral Undervoltage Setting Recommendations (Use With Open-Delta Potentials)
Leave these tripping functions in service to protect the generator in the event that a fault occurs during the test sequence. 1. Operate the generator at no load. Using the SEL-300G Relay METER command, record the values of neutral third-harmonic voltage.
Page 110 2-20 Relay Element Settings 2. Operate the generator at full load. Using the SEL-300G Relay METER command, record the value of neutral third-harmonic voltage. Shut down the generator; the rest of this procedure does not require that the generator be in service.
Page 111: 100% Stator Ground Fault Tripping
64G1 Voltages 64G1D |VN1| 64G1T 64G1P |VP3| 64RAT |•| 64G2 |VN3| 64G2D 64G2P 64G2T 64RAT = 0.0 DELTA_Y = D 64G2P |VN3| 0.8 * VNOM DWG: M300G055 1.73 |V1| Figure 2.43: 64G Logic Diagram SEL-300G Instruction Manual Date Code 20020206...
Page 112: Element Description
Element Description Functional Description The SEL-300G Relay contains an out-of-step element to detect out-of-step conditions between two electrical sources. Two interconnected systems can experience an out-of-step condition for several reasons. For example, loss of excitation can cause a generator to lose synchronism with the rest of the system.
Page 113 Figure 2.45 shows the logic diagram for the single blinder scheme. SEL-300G Instruction Manual Date Code 20020206...
Page 114 2-24 Relay Element Settings Figure 2.45: Single Blinder Scheme Logic Diagram Date Code 20020206 SEL-300G Instruction Manual...
Page 115: Setting Descriptions
Note that the positive-sequence current levels below the 50ABC setting will block the out-of-step function. Both 78R1 and 78R2 must be within the mho circle. SEL-300G Instruction Manual Date Code 20020206...
Page 116: Relay Word Bits
Make sure that the mho element and the blinders do not include the maximum possible generator load to avoid assertion of 78Z1, 78R1, and 78R2 under normal system operation. Date Code 20020206 SEL-300G Instruction Manual...
Page 117 M-N: Total Impedance Between Xd': Generator Transient Reactance Generator and System Transformer Reactance S-S': Perpendicular Bisector of M-N α and β: Angle of Separation Between Generator and System Figure 2.46: Single Blinder Typical Settings SEL-300G Instruction Manual Date Code 20020206...
Page 118: Element Description
Element Description Functional Description The SEL-300G Relay contains an out-of-step element to detect out-of-step conditions between two electrical sources. Two interconnected systems can experience an out-of-step condition for several reasons. For example, loss of excitation can cause a generator to lose synchronism with the rest of the system.
Page 119 During short circuit faults, the impedance either moves inside the inner blinder or goes through the two blinders almost instantaneously so the 78D does not time out. Either case prevents the out-of-step element from picking up. Figure 2.48 shows the logic diagram for the double blinder scheme. SEL-300G Instruction Manual Date Code 20020206...
Page 120 2-30 Relay Element Settings Figure 2.48: Double Blinder Scheme Logic Diagram Date Code 20020206 SEL-300G Instruction Manual...
Page 121 OOST is integrated into the overall trip logic used by other elements since the common ® trip logic has TDURD, an identical timer. Refer to Section 4: SEL Control OGIC Equations for details regarding common trip logic. SEL-300G Instruction Manual Date Code 20020206...
Page 122: Relay Word Bits
Set the inner blinder 78R2 to detect all out-of-step conditions. To do this, set the inner blinder so that the equivalent machine angles α, shown in Figure 2.49, is approximately 120 degrees. A separation angle of 120 degrees or greater between two sources will generally result in loss of synchronism. Date Code 20020206 SEL-300G Instruction Manual...
Page 123 The outer blinder should separate from the inner blinder far enough to ensure that the 78D timer accurately times the out-of-step slip cycle. The SEL-300G Relay processes the out-of-step logic every one-half cycle of the system frequency. To ensure that the relay times the out-of-step slip frequency accurately, the outer and inner blinders must be separated appropriately.
Page 124 Generator Transient Reactance Measured at 78R2 Transformer Reactance γ: Angle of Separation Between System Impedance Generator and System M-N: Total Impedance Between Measured at 78R1 Generator and System Figure 2.49: Double Blinder Typical Settings Date Code 20020206 SEL-300G Instruction Manual...
Page 125: Frequency Protection
Element Description Functional Description The SEL-300G Relay provides six steps of over/underfrequency elements. Each element can operate as an overfrequency or an underfrequency element, depending on its pickup setting. If the element pickup setting is less than the nominal machine frequency setting, FNOM, the element operates as an underfrequency element, picking up if measured frequency is less than the setpoint.
Page 126: Relay Word Bits
Your local system coordinating council may have published underfrequency load shedding requirements. A 20V setting for 27B81P provides frequency element operation over the widest range of system and generator voltages. Date Code 20020206 SEL-300G Instruction Manual...
Page 127: Underfrequency Tripping
Control Equations for more detail and examples of OGIC tripping SEL Control Equations. OGIC Element Operating Characteristics Setting/ Voltages 27B81P Relay Word DELTA_Y = Y 27B81 To Frequency Element Logic (Figure 2.51) DWG: M300G063 Figure 2.50: Frequency Element Voltage Supervision Logic SEL-300G Instruction Manual Date Code 20020206...
Page 128 E81 ³ 5) 81D5P < FNOM Under- Frequency Over- 81D6* Frequency 81D6P Frequency Element 6 81D6D 81D6P ³ FNOM (Setting 81D6T E81 = 6) 81D6P < FNOM Under- DWG: M300G064 Frequency Figure 2.51: Frequency Element Logic Date Code 20020206 SEL-300G Instruction Manual...
Page 129: Off-Frequency Accumulators
Eventually, this fatigue can lead to premature and catastrophic turbine blade failure. For steam turbine prime mover applications, the SEL-300G Relay records the total time of operation of the generator at off-nominal frequencies in up to six frequency bands.
Page 130: Relay Word Bits
Tripping, Indication, SER Triggering BND4A Frequency Band 4 Alarm Indication, Event Triggering, SER Triggering, Testing BND4T Frequency Band 4 Trip Tripping, Indication, SER Triggering Frequency Band 5 Alarm Indication, Event Triggering, SER BND5A Triggering, Testing Date Code 20020206 SEL-300G Instruction Manual...
Page 131: Abnormal Frequency Protection Setting Calculation
Consult the generator and prime mover manufacturers to determine the need or ability to trip the ® generator when the set time accumulation is reached. Refer to Section 4: SEL Control OGIC Equations for more detail and examples of tripping SEL Control Equations. OGIC SEL-300G Instruction Manual Date Code 20020206...
Page 132: Element Operating Characteristics
Operation LBND5 = 56.5 Hz Band 6 LBND6 = 56.0 Hz 0.001 0.01 10.0 100.0 Time (minutes) 0.06 60.0 600.0 6000.0 DWG: M300G061 Time (seconds) Figure 2.52: Example Turbine Operating Limitations During Abnormal Frequency Date Code 20020206 SEL-300G Instruction Manual...
Page 133 BND4A 62ACC TBND4 BND4T LBND3 BANDS ³ 4 BND5A 62ACC TBND5 BND5T LBND4 BANDS ³ 5 BND6A 62ACC TBND6 BND6T LBND5 BANDS = 6 DWG: M300G065 LBND6 Figure 2.53: Abnormal Frequency Protection Logic Diagram SEL-300G Instruction Manual Date Code 20020206...
Page 134: Rtd-Based Protection (Models Compatible With Sel-2600 Rtd Module)
SEL-2600. Use a fiber-optic cable and a transceiver (SEL-C801FD and SEL-2800 respectively) to transmit the RTD data to the SEL-300G Relay (See Figure 1.4 for the detail). The EIA-232 port used must be set for SEL protocol and a baud rate of 2400.
Page 135: Rtd Type Settings
The relay allows you to define the type of each monitored RTD independently using the RTD Type settings. If an RTD Location setting is equal to NONE, the relay does not request that an RTD Type setting be entered for that input. SEL-300G Instruction Manual Date Code 20020206...
Page 136: Rtd Alarms & Trip Temperature Settings
TRTMP11 = OFF RTD Alarm Temperature OFF, 32°–482°F ALTMP11 = OFF RTD Trip Temperature OFF, 32°–482°F TRTMP12 = OFF RTD Alarm Temperature OFF, 32°–482°F ALTMP12 = OFF Enable Winding Trip Voting Y, N EWDGV = N Date Code 20020206 SEL-300G Instruction Manual...
Page 137 RTD leads are shorted or open. Also, failure of the SEL-2600 or the fiber optic connection results in RTD fault alarm in the SEL-300G relay. The relay offers two options to bias the trip temperature thresholds for the winding RTDs.
Page 138 (Overload Bias Limit) set to 2.00 pu Amps. Load Current Biased RTD Element TRTMP+TMPK TRTMP TRTMP-TMPK TRTMP-2*TMPK Load (Per Unit of Nominal Current M300G253 Figure 2.54: Winding RTD Trip Characteristics with BLMT = 2.00 Date Code 20020206 SEL-300G Instruction Manual...
Page 139 172.46 291.96 231.80 16.39 200.00 175.84 303.46 240.70 16.78 210.00 179.15 315.31 249.80 17.17 220.00 183.17 327.54 259.20 17.56 230.00 186.82 340.14 268.90 17.95 240.00 190.45 353.14 278.90 18.34 250.00 194.08 366.53 289.10 18.73 SEL-300G Instruction Manual Date Code 20020206...
Page 140: Relay Word Bits
Note: The above Relay Word bits are not programmed for any action in the factory default settings. They must be added to appropriate SEL Control Equations and SER OGIC settings for Tripping, Alarm, SER triggering, etc. Date Code 20020206 SEL-300G Instruction Manual...
Page 141: Pole Open Logic
Element Description Functional Description The SEL-300G Relay pole open logic output Relay Word bit, 3PO, is logical 1 when the measured phase current and breaker auxiliary contact position agree that generator circuit breaker is open. The 3PO Relay Word bit is useful in event triggering, SER triggering, and other indication and control applications.
Page 142: Pole Open Logic Setting Calculation
52A input status to indicate breaker position. Set 3POD = 0 cycles unless your application requires a specific time-delayed dropout. NADVERTENT NERGIZATION ROTECTION The SEL-300G Relay Inadvertent Energization protection function is provided by the INAD ® Control Equation. Refer to Section 4: SEL Control Equations for complete OGIC OGIC details and a setting example.
Page 143 BKMON ......................3-23 Optoisolated Input Debounce Timers ..................3-24 Input Debounce Timers .......................3-25 Input Functions........................3-26 Factory Settings Example....................3-26 Input IN101........................3-26 SER Trigger Settings and Alias Settings ..................3-27 SER Triggering........................3-27 Making SER Trigger Settings .....................3-27 Alias Settings........................3-28 SEL-300G Instruction Manual Date Code 20020206...
Page 144 Figure 3.8: Latch Control Switch Operation Time Line ...............3-17 Figure 3.9: Plotted Breaker Maintenance Points for a 13.8 kV Circuit Breaker........3-20 Figure 3.10: SEL-300G Relay Breaker Maintenance Curve for a 13.8 kV Circuit Breaker....3-23 Figure 3.11: Operation of SEL Control Equation Breaker Monitor Initiation Setting....3-23 OGIC Figure 3.12: Example Operation of Optoisolated Inputs IN101 Through IN106 (All Models)....3-24...
Page 145: Section 3: Auxiliary Function Settings
SER Trigger Settings and Alias Settings EMAND ETER Functional Description The SEL-300G Relay offers the choice between two types of demand metering, settable with the enable setting: EDEM = THM (Thermal Demand Meter) EDEM = ROL (Rolling Demand Meter) The relay provides demand and peak demand metering for the following values:...
Page 146 Thermal Demand Meter Response (EDEM=THM) (minutes DMTC=15 minutes Rolling Demand Meter Response (EDEM=ROL) (minutes DWG: M300G124 Figure 3.1: Response of Thermal and Rolling Demand Meters to a Step Input (setting DMTC = 15 minutes) Date Code 20020206 SEL-300G Instruction Manual...
Page 147 (1.0 per unit) after a time period equal to setting DMTC = 15 minutes, referenced to when the step current input is first applied. The SEL-300G Relay updates thermal demand values approximately every 2 seconds. Rolling Demand Meter Response (EDEM = ROL) The response of the rolling demand meter in Figure 3.1 (bottom) to the step current input (top) is...
Page 148 -10 to -5 minutes 0.0 per unit -5 to 0 minutes 1.0 per unit 0 to 5 minutes 1.0 per unit Rolling demand meter response at “Time = 5 minutes” = 1.0/3 = 0.33 per unit Date Code 20020206 SEL-300G Instruction Manual...
Page 149: Demand Ammeter Thresholds
Phase Demand Pickup (OFF, 0.50–16.00 A secondary, 5 A model) PDEMP = 5.50 (OFF, 0.10–3.20 A secondary, 1 A model) Neutral (IN) Demand Pickup (OFF, 0.50–16.00 A secondary, 5 A model) NDEMP = 1.00 (OFF, 0.10–3.20 A secondary, 1 A model) SEL-300G Instruction Manual Date Code 20020206...
Page 150: Relay Word Bits
Typical Applications PDEM Phase Demand Current Exceeds Pickup Indication, Testing NDEM Neutral Demand Current Exceeds Pickup Indication, Testing Residual Demand Current Exceeds Pickup Indication, Testing GDEM QDEM Neg.-Seq. Demand Current Exceeds Pickup Indication, Testing Date Code 20020206 SEL-300G Instruction Manual...
Page 151 G(DEM) Thermal (EDEM=THM) (residual) Rolling (EDEM=ROL) reset demand Demand Function QDEMP QDEM 2(DEM) Thermal (EDEM=THM) | 3I Rolling (EDEM=ROL) Serial Port reset Command demand DWG: M300G099 MET RD Figure 3.3: Demand Current Logic Outputs SEL-300G Instruction Manual Date Code 20020206...
Page 152: Station Dc Monitor
Relay Word bits for control and indication. If the SEL-300G Relay has a 125/250 Vac/Vdc supply, it can be powered by ac voltage (85 to 264 Vac) connected to the rear-panel terminals labeled POWER. When powering the relay with ac voltage, the dc voltage elements in Figure 3.4 sees the average of the sampled ac voltage...
Page 153 Figure 3.5 shows the resultant dc voltage elements that can be created with SEL Control OGIC Equations for these two setting cases. In these two examples, the resultant dc voltage elements are time-qualified by timer SV5T and then routed to output contact OUT106 for alarm purposes. SEL-300G Instruction Manual Date Code 20020206...
Page 154: Dclo < Dchi (Top Of Figure 3.5)
(all output contacts deassert on total loss of power). Thus, the resultant dc voltage element at the bottom of Figure 3.5 would probably be a better choice – see the following discussion. Date Code 20020206 SEL-300G Instruction Manual...
Page 155: Dclo > Dchi (Bottom Of Figure 3.5)
OUT106 (according to contact type) is: open (“a” type output contact) closed (“b” type output contact) Note that in this case, the relay ALARM output contact (“b” type output contact) also closed (see Figure 4.16). SEL-300G Instruction Manual Date Code 20020206...
Page 156: Setting Group Selection Function
Control Equation Settings SS1 And SS2 OGIC Setting Definition go to (or remain in) setting Group 1 go to (or remain in) setting Group 2 The operation of these settings is explained with the following example. Date Code 20020206 SEL-300G Instruction Manual...
Page 157: Operation Of Serial Port Group Command And Front-Panel Group Pushbutton
Active Setting Group Switching Example Use a latch control switch to select setting Group 1 and 2 in the SEL-300G Relay. In this example, a SCADA contact is connected to optoisolated input IN104. Each pulse of the SCADA contact changes the active relay setting group.
Page 158 [= NOT(LT5); activate setting Group 2] Relay OGIC Word Setting SET5 (set) rising edge OGIC detect Relay Setting Word RST5 DWG: M300G084 IN104 (reset) Figure 3.7: Latch Control Switch Controlled by a Single Input to Switch Active Setting Group Date Code 20020206 SEL-300G Instruction Manual...
Page 159: Feedback Control
If input IN104 is then asserted for a few cycles by the SCADA contact (see Pulse 1 in Figure 3.8), SET5 is asserted to logical 1 for one processing interval. This causes latch bit LT5 to change state to LT5 = logical 1 the next processing interval. SEL-300G Instruction Manual Date Code 20020206...
Page 160 IN104 shows the state of optoisolated input IN104 after the input pickup/dropout debounce timer IN104D. Thus, when using Relay Word bit IN104 in Figure 3.7 and associated SEL Control OGIC Equations, keep in mind any time delay produced by the input pickup/dropout debounce timer IN104D. Date Code 20020206 SEL-300G Instruction Manual...
Page 161 Auxiliary Function Settings 3-17 Pulse 1 Pulse 2 Pulse 3 Pulse 4 rising rising rising rising edge edge edge edge IN104 /IN104 SET5=/IN104*!LT5 processing interval RST5=/IN104*LT5 DWG: M300G085 Figure 3.8: Latch Control Switch Operation Time Line SEL-300G Instruction Manual Date Code 20020206...
Page 162: Active Setting Group Retained
TGR qualifies settings SS1 and SS2 before changing the active setting group. If optoisolated inputs are used in settings SS1 or SS2, the inputs have their own built-in debounce timer that can help in providing the necessary time qualification. Date Code 20020206 SEL-300G Instruction Manual...
Page 163: Breaker Monitor Function
The breaker maintenance information in Table 3.3 is plotted in Figure 3.9. Connect the plotted points in Figure 3.9 for a breaker maintenance curve. To estimate this breaker maintenance curve in the SEL-300G Relay breaker monitor, three set points are entered: Set Point 1 maximum number of close/open operations with corresponding current interruption level.
Page 164 3-20 Auxiliary Function Settings 10,000 1000 kA Interrupted per DWG: M300G127 Operation Figure 3.9: Plotted Breaker Maintenance Points for a 13.8 kV Circuit Breaker Date Code 20020206 SEL-300G Instruction Manual...
Page 165: Breaker Monitor Setting Example
Each phase (A, B, and C) has its own breaker maintenance curve (like that in Figure 3.10), because the separate circuit breaker interrupting contacts for phases A, B, and C don’t necessarily interrupt the same magnitude current (depending on fault type and loading). SEL-300G Instruction Manual Date Code 20020206...
Page 166 3-22 Auxiliary Function Settings 100% 10,000 KASP1=1.2 COSP1=10000 1000 KASP2=8.0 COSP2=150 KASP3=20.0 COSP3=12 7 8 9 DWG. M300G128 kA Interrupted per Operation Date Code 20020206 SEL-300G Instruction Manual...
Page 167: Operation Of Sel Ogic Control Equation Breaker Monitor Initiation Setting
Auxiliary Function Settings 3-23 Figure 3.10: SEL-300G Relay Breaker Maintenance Curve for a 13.8 kV Circuit Breaker In Figure 3.10 note that the breaker maintenance curve levels off horizontally below set point KASP1, COSP1. This is the close/open operation limit of the circuit breaker (COSP1 = 10000), regardless of interrupted current value.
Page 168: Optoisolated Input Debounce Timers
IMERS Figure 3.12 and Figure 3.13 show the resultant Relay Word bits that follow corresponding optoisolated inputs for the different SEL-300G Relay models. The figures show examples of energized and deenergized optoisolated inputs and corresponding Relay Word bit states. To assert an input, apply rated control voltage to the appropriate terminal.
Page 169: Input Debounce Timers
1/4-cycle. The optoisolated input status may have made it through the pickup/dropout debounce timer (for settings less than 1/4-cycle) because these timers run each 1/16-cycle, but Relay Word bits IN101 through IN106 are updated every 1/4-cycle. SEL-300G Instruction Manual Date Code 20020206...
Page 170: Input Functions
IN1D = 0.5 cycles to provide input energization/deenergization debounce. Using Relay Word bit IN101 for the circuit breaker status setting 52A does not prevent using Relay Word bit IN101 in other SEL Control Equation settings. OGIC Date Code 20020206 SEL-300G Instruction Manual...
Page 171: Ser Trigger Settings And Alias Settings
SER1 = 51NT, 50N1T,, 51CT, 51VT 64G1T, The relay displays the setting as: SER1 = 51NT 50N1T 51CT 51VT 64G1T The relay can monitor up to 96 elements in the SER (24 in each of SER1, SER2, SER3, and SER4). SEL-300G Instruction Manual Date Code 20020206...
Page 172: Alias Settings
Relay Word bit will not be recorded, even though the Relay Word bit has an alias. If you do not wish to use an alias setting, set ALIASn = NA. Date Code 20020206 SEL-300G Instruction Manual...
Page 173 Factory Default Tripping Logic ..................4-18 Generator Fault, Prolonged System Fault, and Inadvertent Energization ....4-18 Generator Abnormal Operating Conditions and Manual Trips........4-18 Generator Main Circuit Breaker Tripping Settings.............4-19 Generator Field Circuit Breaker Tripping Settings .............4-19 Date Code 20020206 SEL-300G Instruction Manual...
Page 174 Front-Panel Display Configuration .....................4-47 Traditional Indicating Panel Meters..................4-47 Traditional Indicating Panel Meters Replaced with Rotating Meter Display.....4-47 Traditional Indicating Panel Lights..................4-48 Circuit Breaker Status Indication ................4-49 Traditional Indicating Panel Lights Replaced with Rotating Text Display ......4-49 Date Code 20020206 SEL-300G Instruction Manual...
Page 175 Table 4.3: Correspondence Between Local Control Switch Positions and Label Settings ....4-42 Table 4.4: Correspondence Between Local Control Switch Types and Required Label Settings..4-43 Table 4.5: Relay Self-Tests........................4-60 Table 4.6: SEL-300G Relay Word Bits ....................4-62 Table 4.7: Relay Word Bit Definitions for Table 4.6 ................4-64 FIGURES Figure 4.1: Result of Falling Edge Operator on a Deasserting Underfrequency Element......4-5...
Page 176 Figure 4.28: SEL-300G Relay Breaker Failure Logic ................4-55 Figure 4.29: Generator/Breaker Topology Where SEL-300G1 Relay Offers Breaker Failure and Breaker Flashover Protection ..................4-56 Figure 4.30: SEL-300G Relay Breaker Failure Plus Breaker Flashover Protection Logic ....4-57 Date Code 20020206 SEL-300G Instruction Manual...
Page 177: Sel Ogic ® Control Equations
SECTION 4: SEL CONTROL EQUATIONS OGIC NTRODUCTION ® This section describes SEL Control Equations and their various applications within the OGIC SEL-300G Relay. Specific topics include: • General Operation of Relay Word Bits • Control Equations OGIC • Control Equation Latch Function OGIC •...
Page 178: Relay Word Bit Operation Example - Neutral Time-Overcurrent Element 51Nt
If neutral time-overcurrent element 51NT is not fully reset, Relay Word bit 51NR is in the following state: 51NR = (logical 0) If neutral time-overcurrent element is fully reset, Relay Word bit 51NR is in the following state: 51NR = (logical 1) Date Code 20000616 SEL-300G Instruction Manual...
Page 179: Relay Word Bit Application Examples - Neutral Time-Overcurrent Element 51Nt
(40) element Relay Word bits. The 78 and 40 elements are updated by the relay on opposite half power system cycles. Therefore, the logical AND of the two element types may not operate as expected. SEL-300G Instruction Manual Date Code 20000616...
Page 180: Sel Ogic Control Equation Operators
Relay Word bit deassertion (element going from logical 1 to logical 0). The falling edge operator, \, in front of a Relay Word bit sees this logical 1 to logical 0 transition as a “falling edge” and asserts to logical 1 for one processing interval. Date Code 20000616 SEL-300G Instruction Manual...
Page 181: Sel Ogic Control Equation Parentheses Operator, ( )
Following are examples of both. Example of NOT Operator, !, Applied to Single Element The internal circuit breaker status logic in the SEL-300G Relay operates on 52a circuit breaker auxiliary contact logic. The SEL Control Equation circuit breaker status setting is labeled OGIC 52A.
Page 182: Example Of Not Operator, !, Applied To Multiple Elements (Within Parentheses)
If either one of 51N or 50L is still asserted [e.g., 51N = 1 (logical 1)], the unlatch condition is not true: ULTR1 = NOT(51N + 50L) = NOT(1 + 0) = NOT(1) = 0 Date Code 20000616 SEL-300G Instruction Manual...
Page 183: All Sel Ogic Control Equations Must Be Set
Control Equation settings that are set directly to 1 (logical 1) or 0 OGIC (logical 0) also have to be included in this combined limit of 330 Relay Word bits – each such setting counted as one Relay Word bit. SEL-300G Instruction Manual Date Code 20000616...
Page 184: Nondedicated Sel Ogic Control Equation Variable Settings
SEL Control Equation variable timer logic. OGIC Settings SV2 - SV16 operate similarly when enabled. Relay Word Bits OGIC Setting SVnPU SVnT SVnDO DWG: M300G078 Figure 4.2: SEL Control Equation Variable Timer Logic OGIC Date Code 20000616 SEL-300G Instruction Manual...
Page 185 Traditional Latching Relay DWG: M300G069 Figure 4.3: Traditional Latching Relay Up to sixteen (16) latch control switches (as enabled by the ESL setting) in the SEL-300G Relay provide latching relay type functions. Relay OGIC Word Settings (set)
Page 186: Latch Control Switch Application Ideas
Latch control switches can be applied to almost any control scheme. The following is an example of using a latch control switch to perform local or remote generator shutdown through the SEL-300G Relay. Local/Remote Generator Shutdown Setting Example Latch bit LT1, is set when either local bit LB1 or remote bit RB1 asserts. LT1 remains asserted until it is reset by assertion of the three-pole open, 3PO, Relay Word bit.
Page 187: Use Local Bit Lb1 Or Remote Bit Rb1 To Shut Down The Generator
SETn and RSTn. If any optoisolated inputs IN101 through IN108 are used in settings SETn and RSTn, the inputs have their own debounce timer that can help in providing the necessary time qualification (see Section 3: Auxiliary Function Settings). SEL-300G Instruction Manual Date Code 20000616...
Page 188 4-12 Control Equations OGIC OGIC The SEL-300G Relay provides tripping logic to operate up to four external devices. Table 4.2 shows the normal association between tripping settings and the apparatus controlled. Figure 4.6 illustrates the tripping logic. OGIC Trip Setting...
Page 189 Resultant logic output of Minimum Trip Duration Timer OR-combination of above two logic traces (inputs into OR-1 to drive Relay DWG: M300G079 Word bit TRIP1) Figure 4.7: Minimum Trip Duration Timer Operation (see Figure 4.6) SEL-300G Instruction Manual Date Code 20000616...
Page 190: Unlatch Trip
It is necessary to trip the Generator Main Circuit Breaker to isolate the generator from the system in response to many situations. The SEL-300G Relay elements and logic used to detect each of the conditions are summarized in the table below.
Page 191: Generator Field Breaker Trip, Tr2
It is necessary to trip the Generator Field Breaker if there is a generator fault or when tripping the generator manually. Field breaker tripping also is recommended for most abnormal operating conditions, excepting over/underfrequency element operation. The SEL-300G Relay elements and logic used to detect field breaker tripping conditions are summarized in the table below. The field is left energized after over/underfrequency trips and negative-sequence overcurrent trips so if the situation can be remedied quickly, the generator can be put back into service quickly.
Page 192: Prime Mover Trip, Tr3
As with the field breaker trips, this is so that the generator can be reconnected quickly if the problem is corrected, avoiding the need for a time-consuming prime mover restart. Date Code 20000616 SEL-300G Instruction Manual...
Page 193: Generator Lockout Relay Trip, Tr4
Ground Current Differential Elements, 87N1T or 87N2T Prolonged System Fault (Backup Tripping) Voltage Controlled Time-Overcurrent Element, 51CT Voltage Restrained Time-Overcurrent Element, 51VT Mho Phase Distance Elements, Z1P1T, Z1P2T Generator Inadvertent Energization Inadvertent Energization Detected, INADT SEL-300G Instruction Manual Date Code 20000616...
Page 194: Factory Default Tripping Logic
Inadvertent generator energization detected. Generator Abnormal Operating Conditions and Manual Trips Control Equation Variable 4 is used to indicate generator abnormal operating OGIC conditions and manual trips: 24C2T + 32P1T + 40Z1T + 40Z2T + LT1*32P2T Date Code 20000616 SEL-300G Instruction Manual...
Page 195: Generator Main Circuit Breaker Tripping Settings
The trip signal can be released after the generator main breaker is open, as indicated by the three-pole open, 3PO, Relay Word bit. ULTR1 = Generator Field Circuit Breaker Tripping Settings As described above, TR2 is used to define the generator field circuit breaker tripping conditions: SV3 + SV4 SEL-300G Instruction Manual Date Code 20000616...
Page 196: Prime Mover Tripping Settings
Generator fault detected by elements set in SV3 SEL OGIC Control Equation, defined above. The trip signal can be released after the tripping conditions are no longer present, as indicated by the inverse of the TR4 tripping condition: ULTR4 = Date Code 20000616 SEL-300G Instruction Manual...
Page 197: Program Output Contacts For Tripping
(close conditions, other than CLOSE command) ULCL (unlatch close conditions, other than circuit breaker status) OGIC Setting CLEN ULCL Serial Port Command CLOSE OGIC CLOSE Setting CLSD Reset Timer DWG: M300G066 Figure 4.8: Close Logic SEL-300G Instruction Manual Date Code 20000616...
Page 198: Set Close
If the CLOSE Relay Word bit is asserted at logical 1, it stays asserted at logical 1 until one of the following occurs: • The unlatch close condition asserts (ULCL = logical 1), • The circuit breaker closes (52A = logical 1), or • The close enable deasserts (CLEN = logical 0). Date Code 20000616 SEL-300G Instruction Manual...
Page 199: Settings Example
52a circuit breaker auxiliary contact. When a closed circuit breaker condition is detected, the CLOSE Relay Word bit is deasserted to logical 0. Setting 52A can handle a 52a or 52b circuit breaker auxiliary contact connected to an optoisolated input. SEL-300G Instruction Manual Date Code 20000616...
Page 200: Defeat The Close Logic
CLOSE signal to be issued by the SEL-300G Relay or can close an output contact to supervise an external close condition.
Page 201: Setting Descriptions
The 25SLO and 25SHI settings define the acceptable slip frequency between the system and the generator prior to closing the generator breaker. 25SHI must be greater than 25SLO. The SEL-300G Relay defines slip frequency greater than 0 Hz when the generator frequency is greater than the system frequency.
Page 202 The TCLOSD setting predicts the amount of time that it will take for the generator main breaker to close, from the instant the SEL-300G Relay CLOSE contact closes, to the instant the breaker main contacts close. Enter a value that is as accurate as possible to obtain best performance of the 25C close initiating Relay Word bit.
Page 203: Relay Word Bits
Generator VT Connection and Transformer Ratio. • Generator Breaker Closing Time. • Generator Step-Up Transformer Winding Turns Ratio and Connection (only required if the transformer is connected between the generator VTs and the synch VT). SEL-300G Instruction Manual Date Code 20000616...
Page 204: Recommendations
25RCF = 1.000, initially. You may wish to refine the setting using the procedure below after the relay is in service. When there is a generator step-up transformer between the generator VTs and the synch VT, set 25RCF using the equation below: Date Code 20000616 SEL-300G Instruction Manual...
Page 205 25RCF setting to account for transformer ratio errors. Use the procedure in the Manually Refine the 25RCF Setting While the Generator is in Service section on page 4-31 to refine the 25RCF setting manually. SEL-300G Instruction Manual Date Code 20000616...
Page 206 The 25SLO and 25SHI settings define the minimum and maximum acceptable slip frequency for a generator breaker close. 25SLO must be set less than 25SHI. The SEL-300G Relay defines the slip frequency positive when the generator frequency is higher than the system frequency.
Page 207: Manually Refine The 25Rcf Setting While The Generator Is In Service
The SEL-300G Relay synch-check function includes breaker slow close detection logic. If a circuit breaker close is initiated by the relay, the breaker close failure logic is armed. If the breaker closes, the 3PO Relay Word bit deasserts and the logic is disarmed.
Page 208 _________ kV primary _______ degrees _________ kV primary _______ degrees Using a scientific calculator and accounting for the phase angles, subtract the second voltage from the first, then note the magnitude of the phase-to-phase voltage: _________ kV primary Date Code 20000616 SEL-300G Instruction Manual...
Page 209: Synch-Check Supervised Closing
The most convenient method to apply the synch-check function is to use one of the resulting Relay Word bits to enable the SEL-300G Relay CLOSE output by setting the synch- check Relay Word bit in the CLEN, CLOSE Enable SEL Control Equation.
Page 210: Element Operating Characteristics
Setting 27VSP 27VS DWG: M300G214 Figure 4.10: Synch-Check Function Voltage Elements Volts − ⋅ NOTE: 25VHI DIFF Acceptable Difference |VP| Voltage Voltage |VS| Window 25VLO DWG: M300G213 Figure 4.11: Synch-Check Function Voltage Element Characteristic Date Code 20000616 SEL-300G Instruction Manual...
Page 211 Relay TCLOSD Word Bits Settings CANGLE | : | 25A1 25ANG1 25A2 25ANG2 CFANGL Enable Angle Calculation Uncompensated |Ang(VP) - Ang(VS) - COMPA| Angle Difference DWG: M300G216 |UncompAng| Figure 4.13: Synch-Check Function Angle Elements SEL-300G Instruction Manual Date Code 20000616...
Page 212: Er Control Equation
When setting ER sees a logical 0 to logical 1 transition, it generates an event report (if the SEL-300G Relay is not already generating a report that encompasses the new transition). The factory setting is:...
Page 213: Output Contact Control
OUT104 = TRIP4 Generator Lockout Relay Trip OUT105 = CLOSE Generator Main Breaker Close OUT106 = 60LOP Loss-of-Potential Annunciation OUT107 = 24D1T + 46Q1T + Operation alarm contact BCW + BNDT + !(DCLO * DCHI) SEL-300G Instruction Manual Date Code 20000616...
Page 214: Operation Of Output Contacts For Different Output Contact Types
Notice in Figure 4.16 that all possible combinations of ALARM output contact coil states (energized or deenergized) and output contact types (a or b) are demonstrated. See Output Contact Jumpers in Section 5: Installation for output contact type options. Date Code 20000616 SEL-300G Instruction Manual...
Page 215 -- an extra Alarm output contact (JMP23 in position 1-2) See Figure 5.19 and Table 5.6 in Section 5: Installation for more information on jumper JMP23. Figure 4.16: Logic Flow for Example Output Contact Operation (All Models) SEL-300G Instruction Manual Date Code 20000616...
Page 216 See Figure 5.20 in Section 5: Installation for more information DWG: M300G082 on selecting output contact type. Figure 4.17: Logic Flow for Example Output Contact Operation - Extra I/O Board (Model 0300G_1 and 0300G_Y) Date Code 20000616 SEL-300G Instruction Manual...
Page 217 The local control switch logic in Figure 4.18 repeats for each local bit LB1 through LB16. Use these local bits in SEL Control Equations. For a given local control OGIC switch, the local control switch positions are enabled by making corresponding label settings. SEL-300G Instruction Manual Date Code 20000616...
Page 218: Local Control Switch Types
Figure 4.19: Local Control Switch Configured as an ON/OFF Switch OFF/MOMENTARY Switch The local bit LBn is maintained in the OFF (LBn = logical 0) position and pulses to the MOMENTARY (LBn = logical 1) position for one processing interval (1/4 cycle). Date Code 20000616 SEL-300G Instruction Manual...
Page 219: On/Off/Momentary Switch
Figure 4.21: Local Control Switch Configured as an ON/OFF/MOMENTARY Switch Table 4.4: Correspondence Between Local Control Switch Types and Required Label Settings Local Switch Type Label NLBn Label CLBn Label SLBn Label PLBn ON/OFF OFF/MOMENTARY ON/OFF/MOMENTARY SEL-300G Instruction Manual Date Code 20000616...
Page 220: Factory Settings Examples
Control Equation result is a logical 1 within CLSD seconds of sequence initiation. CLB2 = RETURN OFF position (“return” from MOMENTARY position) SLB2 = ON position – not used (left “blank”) PLB2 = CLOSE MOMENTARY position Date Code 20000616 SEL-300G Instruction Manual...
Page 221: Additional Local Control Switch Application Ideas
If a local control switch is made newly operable because of a settings change (i.e., the corresponding label settings are set), the corresponding local bit starts out at logical 0. SEL-300G Instruction Manual Date Code 20000616...
Page 222: Remote Bit Application Ideas
(see preceding local control switch discussion). Also, remote bits can be used much as optoisolated inputs are used in operating latch control switches. Pulse (momentarily operate) the remote bits for this application. Date Code 20000616 SEL-300G Instruction Manual...
Page 223: Remote Bit States Not Retained When Power Is Lost
The indicating panel meters are not needed if the rotating default display feature in the SEL-300G Relay is applied. The relay already is measuring the desired quantities to a high degree of accuracy. Simply configure the front-panel display settings to enable the automatic display of real-time measured quantities.
Page 224: Traditional Indicating Panel Lights
OGIC Section 10: Serial Port Communications and Commands). Enabled real-time measurements are shown along with the text display points on the SEL-300G Relay front-panel display on a 2-second rotation (see Rotating Default Display in Section 9: Front-Panel Operation for more specific operation information).
Page 225: Circuit Breaker Status Indication
Traditional Indicating Panel Lights Replaced with Rotating Text Display The indicating panel lights are not needed if the rotating text display feature in the SEL-300G Relay is used. Figure 4.25 shows the elimination of the indicating panel lights by using the rotating text display.
Page 226: General Operation Of Rotating Text Display Settings
SHO G (see Section 6: Enter Relay Settings and Section 10: Serial Port Communications and Commands). These text settings are displayed on the SEL-300G Relay front-panel display on a 2-second rotation (see Rotating Default Display in Section 9: Front-Panel Operation for more specific operation information).
Page 227: Circuit Breaker Open
In Figure 4.25, optoisolated input IN101 is deenergized when the 52a circuit breaker auxiliary contact is open, resulting in: IN101 = logical 0 Corresponding text setting DP1_0 is not set (it is “blank”), so no message is displayed on the front-panel display. SEL-300G Instruction Manual Date Code 20000616...
Page 228: Continually Display A Message
OGIC setting directly to 0 (logical 0) or 1 (logical 1) and the corresponding text setting. For example, if an SEL-300G Relay is protecting a generator labeled “Unit 1A,” the generator name can be continually displayed with the following settings...
Page 229 Control Equation to trip the generator OGIC main circuit breaker, the field breaker, the prime mover, and the generator lockout relay when an inadvertent energization occurs. The logic diagram in Figure 4.26 summarizes the logic. SEL-300G Instruction Manual Date Code 20000616...
Page 230 If the field breaker auxiliary contact is connected to another input in your application, use the Relay Word bit representing that input in the SV2 SEL OGIC Control Equation. If a field breaker auxiliary contact is not connected to the SEL-300G Relay, remove this term from the SV2 SEL Control Equation.
Page 231 Figure 4.27: Generator/Breaker Topology Where SEL-300G1 Relay Offers Breaker Failure Protection In this topology, the SEL-300G Relay is able to directly measure current flowing in the generator breaker. The SV7 SEL Control Equation below creates a breaker failure function based on OGIC circuit breaker current and the breaker auxiliary contact, 52A, state.
Page 232: Breaker Failure Protection
Figure 4.29: Generator/Breaker Topology Where SEL-300G1 Relay Offers Breaker Failure and Breaker Flashover Protection In this topology, the SEL-300G Relay is able to measure directly current flowing in the generator breaker and step-up transformer neutral circuit. The SV7 SEL Control Equation below...
Page 233: Application Examples
In some cases, the early alarm may give an operator the opportunity to correct the problem before the relay trips the generator. In addition, the SEL-300G Relay provides several monitoring functions that can provide alarms related to loss of relaying potential, relay performance, dc battery voltage, and breaker wear.
Page 234: Protection Element Alarms
24D1 and 24C2, can be used to indicate that the SEL-300G Relay has detected volts/hertz overexcitation and is timing toward a trip. To obtain this indication, include the desired Relay Word bit in the SEL...
Page 235: Dc Voltage Monitor
• The relay generates automatic STATUS reports at the serial port for warnings and failures. • The relay displays failure messages on the relay LCD display for failures. Use the serial port STATUS command or front-panel STATUS pushbutton to view relay self-test status. SEL-300G Instruction Manual Date Code 20000616...
Page 236 Warning Measures the temperature -40° C at the A/D voltage +85° C reference every 10 seconds. Failure Latched -50° C +100° C Failure Latched Performs a read/write test on system RAM every 60 seconds. Date Code 20000616 SEL-300G Instruction Manual...
Page 237 10 seconds. The following self-tests are performed by dedicated circuitry in the microprocessor and the SEL-300G Relay main board. Failures in these tests shut down the microprocessor and are not shown in the STATUS report. Micro-...
Page 238 The Relay Word bit row numbers correspond to the row numbers used in the TAR command [see TAR Command (Target) in Section 10: Serial Port Communications and Commands]. Rows 0 and 1 are reserved for the display of the two front-panel target LED rows. Table 4.6: SEL-300G Relay Word Bits Relay Word Bits 24TC...
Page 239 See Figure 3.13 for more information on the operation of optoisolated inputs IN201 through IN208. All output contacts in the additional I/O board of SEL-300G Relay model 0300G01 and 0300G0Ycan be “a” or “b” type contacts. See Figure 5.26 and Figure 4.17 for more information on the operation of output contacts OUT201 through OUT212.
Page 240 59G1 Level 1 residual instantaneous overvoltage element [residual voltage (3V0) above pickup setting 59G1P; see Figure 2.41] 59G2 Level 2 residual instantaneous overvoltage element [residual voltage (3V0) above pickup setting 59G2P; see Figure 2.41] Date Code 20020206 SEL-300G Instruction Manual...
Page 241 Single blinder: 78R1/78R2 and 78Z1 assert Indication Double blinder: 78R1 and 78R2 assert or only 78R1 asserts (see Figures 2.44 and 2.47) Setting Group 1 active (see Table 3.1) Indication Setting Group 2 active (see Table 3.1) SEL-300G Instruction Manual Date Code 20020206...
Page 242 (maximum phase current above pickup setting 51CP; see Figure 2.37) 51CT Voltage controlled phase time-overcurrent element 51CT Tripping, Control timed out (derived from 51C; see Figure 2.37) 51CR Voltage controlled phase time-overcurrent element 51CT Testing fully reset (see Figure 2.37) Date Code 20020206 SEL-300G Instruction Manual...
Page 243 Figure 3.3) QDEM Negative-sequence demand current above pickup setting QDEMP (see Figure 3.3) GDEM Residual demand current above pickup setting GDEMP (see Figure 3.3) NDEM Neutral demand current above pickup setting NDEMP (see Figure 3.3) SEL-300G Instruction Manual Date Code 20020206...
Page 244 Testing Figure 4.8) Close Initiating SEL Control Equation (see Figure 4.8) OGIC CLOSE Close logic output asserted (see Figure 4.8) Output contact assignment ULCL Unlatch close SEL Control Equation (see Figure 4.8) Testing OGIC Date Code 20020206 SEL-300G Instruction Manual...
Page 245 (see Breaker Monitor in Section 3: Auxiliary Function Settings) FAULT Generator fault indication (halts Max/Min METER recording) DCLO Station dc battery instantaneous undervoltage element (see Figure 3.4) DCHI Station dc battery instantaneous overvoltage element (see Figure 3.4) SEL-300G Instruction Manual Date Code 20020206...
Page 246 Undervoltage element for frequency element blocking (any Indication, Control phase voltage below pickup setting 27B81P; see Figure 2.50) Phase instantaneous overcurrent element for load detection (maximum phase current above pickup setting 50LP; see Figure 2.54) Date Code 20020206 SEL-300G Instruction Manual...
Page 247 Abnormal frequency band 6 trip (accumulated off-frequency Indication, operating time in band 6 exceeds TBND6 setting; see Tripping Figure 2.53) BNDT BNDT = BND1T + BND2T + BND3T + BND4T + BND5T + BND6T SEL-300G Instruction Manual Date Code 20020206...
Page 248 Local Bit 4 asserted (see Figure 4.18) mounted control Local Bit 5 asserted (see Figure 4.18) switches Local Bit 6 asserted (see Figure 4.18) Local Bit 7 asserted (see Figure 4.18) Local Bit 8 asserted (see Figure 4.18) Date Code 20020206 SEL-300G Instruction Manual...
Page 249 Remote Bit 16 asserted (see Figure 4.23) Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use SEL-300G Instruction Manual Date Code 20020206...
Page 250 Control Equation variable timer output SV6T OGIC asserted (see Figure 4.2) SV7T Control Equation variable timer output SV7T OGIC asserted (see Figure 4.2) SV8T Control Equation variable timer output SV8T OGIC asserted (see Figure 4.2) Date Code 20020206 SEL-300G Instruction Manual...
Page 251 Display Point 8 asserted Front-panel text display Display Point 7 asserted Display Point 6 asserted Display Point 5 asserted Display Point 4 asserted Display Point 3 asserted Display Point 2 asserted Display Point 1 asserted SEL-300G Instruction Manual Date Code 20020206...
Page 252 Output contact OUT105 asserted (see Figure 4.16) OUT104 Output contact OUT104 asserted (see Figure 4.16) OUT103 Output contact OUT103 asserted (see Figure 4.16) OUT102 Output contact OUT102 asserted (see Figure 4.16) OUT101 Output contact OUT101 asserted (see Figure 4.16) Date Code 20020206 SEL-300G Instruction Manual...
Page 253 Level 2 87-input phase instantaneous overcurrent element Control, Indication pickup (maximum phase current above 50H2P setting; see Figure 2.24) 50H2T Level 2 87-input phase definite-time overcurrent element Tripping, Control, timed out (derived from 50H2; Indication see Figure 2.24) SEL-300G Instruction Manual Date Code 20020206...
Page 254 Initiate CLOSE to match target close angle (see Figure 4.13) Control, Testing 25A1 Slip/Breaker-time compensated phase angle less than Control, 25ANG1 setting (see Figure 4.13) Indication, Testing 25A2 Uncompensated phase angle less than 25ANG2 setting (see Control, Figure 4.13) Indication, Testing Date Code 20020206 SEL-300G Instruction Manual...
Page 255 Zone 2 phase distance element instantaneous pickup (see Control, Indication Figure 2.7) 21P2T Zone 2 phase distance element timed out (see Figure 2.7) Tripping Reserved for future use Reserved for future use Reserved for future use SEL-300G Instruction Manual Date Code 20020206...
Page 256 Output contact OUT210 asserted (see Figure 4.17) OUT211 Output contact OUT211 asserted (see Figure 4.17) OUT212 Output contact OUT212 asserted (see Figure 4.17) Reserved for future use Reserved for future use Reserved for future use Reserved for future use Date Code 20020206 SEL-300G Instruction Manual...
Page 257 Reset Latch Bit 4 (see Figure 4.4) RST5 Reset Latch Bit 5 (see Figure 4.4) RST6 Reset Latch Bit 6 (see Figure 4.4) RST7 Reset Latch Bit 7 (see Figure 4.4) RST8 Reset Latch Bit 8 (see Figure 4.4) SEL-300G Instruction Manual Date Code 20020206...
Page 258 Latch Bit 13 asserted (see Figure 4.4) mounted latching relays LT14 Latch Bit 14 asserted (see Figure 4.4) LT15 Latch Bit 15 asserted (see Figure 4.4) LT16 Latch Bit 16 asserted (see Figure 4.4) Date Code 20020206 SEL-300G Instruction Manual...
Page 259 Trip Logic (see Figure 4.6) and Close Logic (see Figure 4.8), respectively. Thus, they likely are not used in SEL Control Equations. They are in the Relay Word for embedded event OGIC report information functions. SEL-300G Instruction Manual Date Code 20020206...
Page 261 0300G_1 and 0300G_Y) .....................5-26 Output Contact Jumpers ......................5-29 “Extra Alarm” Output Contact Control Jumper..............5-29 Password and Breaker Jumpers...................5-30 EIA-232 Serial Port Voltage Jumpers .................5-31 Condition of Acceptability for North American Product Safety Compliance ....5-31 Clock Battery........................5-32 SEL-300G Instruction Manual Date Code 20020206...
Page 262 Installation TABLES Table 5.1: Communication Cables to Connect the SEL-300G Relay to Other Devices......5-19 Table 5.2: Output Contact Jumpers and Corresponding Output Contacts..........5-29 Table 5.3: “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers ......5-29 Table 5.4: Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation (Models 0300G_0 and 0300G_1) ..................5-30...
Page 263 Synch-Check ........................5-25 Figure 5.24: SEL-300G Relay DC Connection Example ................5-25 Figure 5.25: Jumper, Connector, and Major Component Locations on the SEL-300G Relay Main Board (All Models) ......................5-27 Figure 5.26: Jumper, Connector, and Major Component Locations on the SEL-300G Relay Extra I/O Board (Models 0300G_1 and 0300G_Y) ..............5-28...
Page 265: Installation
ELAY OUNTING Figure 5.1: SEL-300G Relay Dimensions and Panel Mount Cut-Out To better use Figure 5.1, refer to Table 1.3 for rack unit height information on the SEL-300G ® Relay models (2U or 3U, screw-terminal block or Connectorized option). SEL-300G Instruction Manual...
Page 266 Installation Figure 5.2: SEL-300G Relay Front-Panel Drawings for Rack-Mount Relays (2U and 3U), Screw-Terminal Block, and Connectorized Versions Date Code 20000616 SEL-300G Instruction Manual...
Page 267: Sel-300G Instruction Manual Date Code
Installation Figure 5.3: SEL-300G Relay Front-Panel Drawings for Panel-Mount Relays (2U and 3U), Screw-Terminal Block, and Connectorized Versions SEL-300G Instruction Manual Date Code 20000616...
Page 268 Installation Figure 5.4: SEL-300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Screw-Terminal Block Version Date Code 20000616 SEL-300G Instruction Manual...
Page 269 Installation Figure 5.5: SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Screw-Terminal Block Version SEL-300G Instruction Manual Date Code 20000616...
Page 270 Installation Figure 5.6: SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Screw-Terminal Block Version Date Code 20000616 SEL-300G Instruction Manual...
Page 271 Installation Figure 5.7: SEL-300G3 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Screw-Terminal Block Version SEL-300G Instruction Manual Date Code 20000616...
Page 272 Installation Figure 5.8: SEL300G0 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Connectorized Version Date Code 20000616 SEL-300G Instruction Manual...
Page 273 Installation Figure 5.9: SEL-300G1 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Connectorized Version SEL-300G Instruction Manual Date Code 20000616...
Page 274 5-10 Installation Figure 5.10: SEL-300G2 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Connectorized Version Date Code 20000616 SEL-300G Instruction Manual...
Page 275 Installation 5-11 Figure 5.11: SEL-300G3 Relay Rear-Panel Drawings for Rack- and Panel-Mount Relays (2U and 3U), Connectorized Version SEL-300G Instruction Manual Date Code 20000616...
Page 276: Making Rear-Panel Connections
(1) 8-position female plug-in connector for EIA-485/IRIG-B Serial Port 1. • (4) 6-position female plug-in connectors for output contacts OUT201 through OUT212 • (2) 8-position female plug-in connectors for optoisolated inputs IN201 through IN208. Date Code 20000616 SEL-300G Instruction Manual...
Page 277 (1) CT shorting connector for current inputs IA87, IB87, and IC87 (SEL-0300G1 and SEL-0300G3). • (1) connector for voltage input VS (SEL-0300G2 and SEL-0300G3). These prewired connectors (and the serial port connector) are unique and may only be installed in one orientation. SEL-300G Instruction Manual Date Code 20000616...
Page 278 5-14 Installation Figure 5.12: SEL-300G Relay Connectorized Coding (Top View; Models 0300G_W and 0300G_Y) Date Code 20000616 SEL-300G Instruction Manual...
Page 279: Models 0300G_0 And 000G_1 (Screw-Terminal Blocks)
Models 0300G_0H, 0300G_03, 0300G_WH, and 0300G_W3 Models 0300G_0H, 0300G_03, 0300G_WH, and 0300G_W3 can be ordered with standard output contacts only. Refer to General Specifications in Section 1: Introduction and Specifications for output contact ratings. SEL-300G Instruction Manual Date Code 20000616...
Page 280: Models 0300G_1H, 0300G_13, 0300G_Yh, And 0300G_Y3
The same holds true for output contacts OUT202 through OUT212 (if they are also high current interrupting output contacts). Note: Do not use the high current interrupting output contacts to switch ac control signals. Date Code 20000616 SEL-300G Instruction Manual...
Page 281: Optoisolated Inputs
5-17 Optoisolated Inputs The optoisolated inputs in any of the SEL-300G Relay models (e.g., IN102, IN207) are not polarity dependent. With nominal control voltage applied, each optoisolated input draws approximately 5 mA of current. Refer to General Specifications in Section 1: Introduction and Specifications for optoisolated input ratings.
Page 282: Models 0300G1 And 0300G3
Refer to Table 10.1 for information on the serial ports available on the different SEL-300G Relay models. Serial Port 1 on all the SEL-300G Relay models is an EIA-485 port (4-wire). The Serial Port 1 Connectorized connector accepts wire size AWG 24 to 12. Strip the wires 0.31 inches (8 mm) and install with a small slotted-tip screwdriver.
Page 283: Irig-B Time-Code Input
SEL-2020 Communications Processor or the SEL-IDM listed in Table 5.3. A demodulated IRIG-B time code can be input into Serial Port 2 on any of the SEL-300G Relay models (see Table 10.2). This is handled adeptly by connecting Serial Port 2 of the SEL-300G Relay to an SEL-2020 with Cable C273A.
Page 284: Example Ac And Dc Connection Diagrams
Figure 5.13: SEL-300G1 Relay AC Connection Example — High-Impedance Grounded Generator With Current Differential Protection Generator Phase-Input Current Transformers DWG: M300G088 Figure 5.14: SEL-300G0 Relay AC Connection Example — High-Impedance Grounded Generator Without Current Differential Protection Date Code 20000616 SEL-300G Instruction Manual...
Page 285 Grounded Generator With Step-Up Transformer Included in Differential Zone Generator DWG: M300G090 Optional VN connection provides 100% Stator Ground Protection Figure 5.16: SEL-300G0 Relay AC Connection Example — Resistance Grounded Generator With Ground Differential Protection (87N) SEL-300G Instruction Manual Date Code 20000616...
Page 286 Figure 5.17: SEL-300G0 Relay AC Connection Example — Solidly Grounded Generator With Ground Differential Protection (87N) Generator DWG: M300G093 Figure 5.18: SEL-300G1 Relay AC Connection Example — High-Impedance Grounded Generator With Split-Phase Current Differential Protection Date Code 20000616 SEL-300G Instruction Manual...
Page 287 Figure 5.19: SEL-300G1 Relay Applied Using Open-Delta Potentials Generator Phase-Input Current Transformers to A, B, or C DWG: M300G202 Figure 5.20: SEL-300G2 Relay High-Impedance Grounded Generator With Synch- Check and Without Current Differential Protection SEL-300G Instruction Manual Date Code 20000616...
Page 288 Window CT DWG: M300G206 Figure 5.21: SEL-300G1 Relay High-Impedance Grounded Generator With Split- Phase, Self-Balancing Differential Protection Generator SYNCP=VBC DWG: M300G205 Figure 5.22: SEL-300G2 Relay Solidly Grounded Generator With Ground Differential (87N) and Synch-Check Date Code 20000616 SEL-300G Instruction Manual...
Page 289 Relay Breaker Lockout Alarm Annunciator TRIP Relay Annunciator Field Breaker Main Failure Initiate Abnormal Main Prime Main Operation Breaker Mover Breaker Annunciator TRIP Trip Close DWG: M300G094 Figure 5.24: SEL-300G Relay DC Connection Example SEL-300G Instruction Manual Date Code 20000616...
Page 290: Accessing The Relay Main Board (All Models) And Extra I/O Board
4. Identify which drawout board needs to be changed. All SEL-300G Relay models have a main board in the top guides, and Models 0300G_1 and 0300G_Y have an extra I/O board below the main board.
Page 291 Installation 5-27 OUT101 OUT102 OUT103 OUT104 OUT105 OUT106 OUT107 ALARM JMP23 JMP2 JMP1 DWG: M300G096 Figure 5.25: Jumper, Connector, and Major Component Locations on the SEL-300G Relay Main Board (All Models) SEL-300G Instruction Manual Date Code 20000616...
Page 292 JMP23 OUT207 JMP22 OUT208 JMP21 OUT209 JMP20 OUT210 JMP19 OUT211 JMP18 OUT212 JMP17 DWG: M300G095 Figure 5.26: Jumper, Connector, and Major Component Locations on the SEL-300G Relay Extra I/O Board (Models 0300G_1 and 0300G_Y) Date Code 20000616 SEL-300G Instruction Manual...
Page 293: Extra Alarm" Output Contact Control Jumper
An extra alarm output contact can be had for all the SEL-300G Relay models without the addition of any external hardware. The output contact next to the dedicated ALARM output contact can be converted to operate as an “extra alarm”...
Page 294: Password And Breaker Jumpers
Table 5.5: Password and Breaker Jumper Positions for Standard Relay Shipments SEL-300G Relay Password Jumper/Position Breaker Jumper/Position Model Number (for standard relay (for standard relay Reference shipments) shipments) Figures All Models JMP6-A = OFF JMP6-B = ON Figure 5.25 Date Code 20000616 SEL-300G Instruction Manual...
Page 295: Eia-232 Serial Port Voltage Jumpers
Table 5.7: EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments EIA-232 EIA-232 SEL-300G Relay Serial Port 2 Serial Port 3 Reference Model Number (rear panel) (rear panel) Figure All Models JMP2 = OFF JMP1 = OFF Figure 5.25 SEL-300G Instruction Manual Date Code 20001212...
Page 296: Clock Battery
Reassemble the relay as described in Accessing the Relay Main Board (All Models) and Extra I/O Board (Models 0300G_1 and 0300G_Y). Set the relay date and time via serial communications port or front panel (see Section 10: Serial Port Communications and Commands or Section 9: Front-Panel Operation, respectively). Date Code 20001212 SEL-300G Instruction Manual...
Page 297 Settings Sheets ..........................6-9 TABLES Table 6.1: Serial Port SET Commands .....................6-1 Table 6.2: SET Command Editing Keystrokes ..................6-3 Table 6.3: Setting Interdependency Error Messages ................6-4 FIGURES Figure 6.1: Front-Panel SET Pushbutton Options Setting Sheets.............6-8 SEL-300G Instruction Manual Date Code 20010615...
Page 299: Enter Relay Settings
SEL-5801 Cable Selector software is also helpful to determine the correct cabling for relay communications. This software is available free of charge from the factory or may be downloaded from our world wide web site at www.selinc.com. SEL-300G Instruction Manual Date Code 20000616...
Page 300: Terminal Emulation
When you issue the SET command, the relay presents a list of settings, one at a time. Enter a new setting, or press <ENTER> to accept the existing setting. Editing keystrokes are shown in Table 6.2. Date Code 20000616 SEL-300G Instruction Manual...
Page 301: Setting Entry Error Messages
As you enter relay settings, the relay checks the setting entered against the setting’s own range, as published on the relay setting sheet. If any setting entered falls outside its range, the relay immediately responds ‘Out of Range’ and prompts you to reenter the setting. SEL-300G Instruction Manual Date Code 20000616...
Page 302: Volts/Hertz Element
CTCON out of range for selected Current Differential Verify that the CT connection selected is TRCON Function compatible with the transformer connection selected. Review the combinations available, as shown in Appendix B: Differential Connection Diagrams. Date Code 20010615 SEL-300G Instruction Manual...
Page 303 (5 A relays) and 500.5 Ohms (1 A 500.5 Ohms for 1 A relays. relays) Radius of 78Z1 must be < 78R1 Out-of-Step Function Increase the setting of 78R1 (Outer Double Blinder Resistance Blinder). Scheme SEL-300G Instruction Manual Date Code 20001212...
Page 304 SET pushbutton options. To terminate settings viewing or modification at any point in the process, press the EXIT pushbutton. The relay will return to the default display without saving any setting modifications. Date Code 20001212 SEL-300G Instruction Manual...
Page 305 To save your modifications and enable the relay with your new settings, press the SELECT pushbutton with underscore beneath the Y in Yes. To exit without saving, press the Right arrow pushbutton to move the underscore beneath the N in No, then press the SELECT pushbutton. SEL-300G Instruction Manual Date Code 20000616...
Page 306 Enter Relay Settings Figure 6.1: Front-Panel SET Pushbutton Options Setting Sheets Date Code 20000616 SEL-300G Instruction Manual...
Page 307 Enable Ground Differential Protection (Y, N) [Model 300G0, 300G2] E87N = â Enable SEL Control Equation Variables (0–16) ESV = OGIC Enable Set/Reset Latch Variables (0–16) ESL = Enable Demand Metering (THM, ROL) EDEM = SEL-300G Instruction Manual Date Code 20020206...
Page 308: Settings Sheets
(hidden when 24CCS = OFF, DD) 24IC = Level 2 Inverse-Time Factor (0.1–10.0 s) (hidden when 24CCS = OFF, DD) 24ITD = Level 2 Pickup One (100–200%) (hidden when 24CCS = OFF, ID, I) 24D2P1 = SEL-300G Instruction Manual Date Code 20020206...
Page 309 Level 2 Phase U/V Pickup (OFF, 0.1–200.0 V) 27P2P = Positive-Sequence U/V Pickup (OFF, 0.1–200.0 V) 27V1P = Level 1 Phase-to-Phase U/V Pickup (OFF, 0.1–200.0 V) 27PP1 = Level 2 Phase-to-Phase U/V Pickup (OFF, 0.1–200.0 V) 27PP2 = SEL-300G Instruction Manual Date Code 20020206...
Page 310 Level 1 Phase O/C Time Delay (0.00–400.00 s) (hidden when 50P1P = OFF) 50P1D = Level 2 Phase O/C Pickup (OFF, 0.25–100.00 A {5 A model}; OFF, 0.05–20.00 A {1 A model}) 50P2P = SEL-300G Instruction Manual Date Code 20020206...
Page 311 Level 2 Negative-Sequence O/C Time Delay (0.00–400.00 s) (hidden when 50Q2P = OFF) 50Q2D = Level 1 Residual O/C Pickup (OFF, 0.25–100.00 A {5 A model}; OFF, 0.05–20.00 A {1 A model}) 50R1P = SEL-300G Instruction Manual Date Code 20020206...
Page 312 51CC = Volt Controlled Time-O/C Time Dial (0.50–15.00, U curves; 0.05–1.00, C curves) 51CTD = Volt Controlled Time-O/C EM Reset (Y, N) 51CRS = 51C Element Torque Control (SEL Control Equation) OGIC 51CTC = SEL-300G Instruction Manual Date Code 20020206...
Page 313 78 Elements (hidden when E78 = N) If E78 = 1B, the following settings will apply: Forward Reach Reactance (0.1–100.0 Ohms {5 A model}; 0.5–500.0 Ohms {1 A model}) 78FWD = Reverse Reach Reactance 78REV = SEL-300G Instruction Manual Date Code 20020206...
Page 314 Level 4 Pickup (OFF, 20.00–70.00 Hz) (hidden when E81 < 4) 81D4P = Level 4 Time Delay (0.03–400.00 s) (hidden when E81 < 4 or 81D4P = OFF) 81D4D = Level 5 Pickup (OFF, 20.00–70.00 Hz) (hidden when E81 < 5) 81D5P = SEL-300G Instruction Manual Date Code 20020206...
Page 315 Level 1 Ground Differential Pickup (0.1 • CTR/CTRN to 15.0 A {5 A model}; 0.02 • CTR/CTRN to 3.00 A {1 A model}) 87N1P = Level 1 Ground Differential Time Delay (0.00 to 400.00 s) 87N1D = SEL-300G Instruction Manual Date Code 20020206...
Page 316 (hidden and set equal to OFF when E87 = G) PCT2 = Independent Harmonic Blocking (Y, N) (hidden when E87 = G or when PCT2 = OFF) IHBL = Restrained Element Block (SEL Control Equation) OGIC 87B = SEL-300G Instruction Manual Date Code 20020206...
Page 317 RTD Trip Temperature (OFF, 32°–482°F or 0°–250°C) TRTMP5 = RTD Alarm Temperature (OFF, 32°–482°F or 0°–250°C) ALTMP5 = RTD Trip Temperature (OFF, 32°–482°F or 0°–250°C) TRTMP6 = RTD Alarm Temperature (OFF, 32°–482°F or 0°–250°C) ALTMP6 = SEL-300G Instruction Manual Date Code 20020206...
Page 318 (OFF, 0.50–16.00 A {5 A model}; OFF, 0.10–3.20 A {1 A model}) QDEMP = Inadvertent Energization Logic Inadvertent Energization (SEL Control Equation) OGIC INAD = Inadvertent Energization PU Time (0.00–400.00 s) INADPU = Inadvertent Energization DO Time (0.00–400.00 s) INADDO = SEL-300G Instruction Manual Date Code 20020206...
Page 319 SV8 Pickup Time (0.00–3000.00 s) SV8PU = SV8 Dropout Time (0.00–3000.00 s) SV8DO = Control Equation Variable SV9 OGIC SV9 = SV9 Pickup Time (0.00–3000.00 s) SV9PU = SV9 Dropout Time (0.00–3000.00 s) SV9DO = SEL-300G Instruction Manual Date Code 20020206...
Page 320 Control Equation) OGIC SET1 = Reset Latch Bit LT1 (SEL Control Equation) OGIC RST1 = Set Latch Bit LT2 (SEL Control Equation) OGIC SET2 = Reset Latch Bit LT2 (SEL Control Equation) OGIC RST2 = SEL-300G Instruction Manual Date Code 20020206...
Page 321 Control Equation) OGIC SET11 = Reset Latch Bit LT11 (SEL Control Equation) OGIC RST11 = Set Latch Bit LT12 (SEL Control Equation) OGIC SET12 = Reset Latch Bit LT12 (SEL Control Equation) OGIC RST12 = SEL-300G Instruction Manual Date Code 20020206...
Page 322 Trip Equation 4 (SEL Control Equation) OGIC TR4 = Unlatch Trip Equation 4 (SEL Control Equation) OGIC ULTR4 = Close Enable Equation (SEL Control Equation) OGIC CLEN = Close Initiate Equation (SEL Control Equation) OGIC CL = SEL-300G Instruction Manual Date Code 20020206...
Page 323 Output Contact OUT205 (SEL Control Equation) OGIC OUT205 = Output Contact OUT206 (SEL Control Equation) OGIC OUT206 = Output Contact OUT207 (SEL Control Equation) OGIC OUT207 = Output Contact OUT208 (SEL Control Equation) OGIC OUT208 = SEL-300G Instruction Manual Date Code 20020206...
Page 324 Output Contact OUT209 (SEL Control Equation) OGIC OUT209 = Output Contact OUT210 (SEL Control Equation) OGIC OUT210 = Output Contact OUT211 (SEL Control Equation) OGIC OUT211 = Output Contact OUT212 (SEL Control Equation) OGIC OUT212 = SEL-300G Instruction Manual Date Code 20020206...
Page 325 Input Debounce Time (0.00–1.00 cycle in 0.25-cycle steps) IN103D = Input Debounce Time (0.00–1.00 cycle in 0.25-cycle steps) IN104D = Input Debounce Time (0.00–1.00 cycle in 0.25-cycle steps) IN105D = Input Debounce Time (0.00–1.00 cycle in 0.25-cycle steps) IN106D = SEL-300G Instruction Manual Date Code 20020206...
Page 326 Set Local Bit LB4 Label (7 characters) (setting hidden if NLB4 = NA) SLB4 = Pulse Local Bit LB4 Label (7 characters) (setting hidden if NLB4 = NA) PLB4 = Local Bit LB5 Name (14 characters) NLB5 = SEL-300G Instruction Manual Date Code 20020206...
Page 327 SLB10 = Pulse Local Bit LB10 Label (7 characters) (setting hidden if NLB10 = NA) PLB10 = Local Bit LB11 Name (14 characters) NLB11 = Clear Local Bit LB11 Label (7 characters) CLB11 = SEL-300G Instruction Manual Date Code 20020206...
Page 328 (setting hidden if NLB16 = NA) CLB16 = Set Local Bit LB16 Label (7 characters) (setting hidden if NLB16 = NA) SLB16 = Pulse Local Bit LB16 Label (7 characters) (setting hidden if NLB16 = NA) PLB16 = SEL-300G Instruction Manual Date Code 20020206...
Page 329 Display if DP7 = logical 0 (16 characters) DP7_0 = Display Point DP8 (SEL Control Equation) OGIC DP8 = Display if DP8 = logical 1 (16 characters) DP8_1 = Display if DP8 = logical 0 (16 characters) DP8_0 = SEL-300G Instruction Manual Date Code 20020206...
Page 330 Display if DP15 = logical 0 (16 characters) DP15_0 = Display Point DP16 (SEL Control Equation) OGIC DP16 = Display if DP16 = logical 1 (16 characters) DP16_1 = Display if DP16 = logical 0 (16 characters) DP16_0 = SEL-300G Instruction Manual Date Code 20020206...
Page 331 ALIAS14 = ALIAS15 = ALIAS16 = ALIAS17 = ALIAS18 = ALIAS19 = ALIAS20 = ALIAS21 = ALIAS22 = ALIAS23 = ALIAS24 = ALIAS25 = ALIAS26 = ALIAS27 = ALIAS28 = ALIAS29 = ALIAS30 = SEL-300G Instruction Manual Date Code 20020206...
Page 332 Date _______ SEL-300G R OR THE ELAY SET R) EQUENTIAL VENTS ECORDER ETTINGS ERIAL OMMAND ALIAS31 = ALIAS32 = ALIAS33 = ALIAS34 = ALIAS35 = ALIAS36 = ALIAS37 = ALIAS38 = ALIAS39 = ALIAS40 = SEL-300G Instruction Manual Date Code 20020206...
Page 333 Set FASTOP = Y to enable binary Fast Operate messages at the serial port. Set FASTOP = N to block binary Fast Operate messages. Refer to Appendix D: Configuration, Fast Meter, and Fast Operate Commands for the description of the SEL-300G Relay Fast Operate commands. SEL-300G Instruction Manual...
Page 335 Test Source Connections .....................7-38 Basic Element Operation.....................7-38 Voltage Element Accuracy Test..................7-39 Slip Frequency Accuracy Test ..................7-44 Static Phase Angle Accuracy Test................7-45 Undervoltage (27) Elements....................7-47 Equipment Needed ......................7-47 Test Source Connections .....................7-47 Basic Element Operation.....................7-47 SEL-300G Instruction Manual Date Code 20020206...
Page 336 Equipment Needed ......................7-75 Test Source Connections .....................7-75 Basic Element Operation.....................7-75 Element Pickup Accuracy Test ...................7-76 Element Timing Accuracy Test...................7-78 Inverse-Time Accuracy Test................7-78 Overvoltage (59) Elements....................7-80 Equipment Needed ......................7-80 Test Source Connections .....................7-80 Basic Element Operation.....................7-81 Date Code 20020206 SEL-300G Instruction Manual...
Page 337 U87P Unrestrained Element Operating Accuracy Test..........7-104 O87P Restrained Element Pickup Accuracy Test .............7-106 SLP1 Restrained Element Accuracy Test ..............7-107 SLP2 Restrained Element Accuracy Test ..............7-109 PCT2 Second-Harmonic Blocking Accuracy Test............7-110 Differential Element Commissioning Worksheet ..............7-112 Check List .........................7-113 SEL-300G Instruction Manual Date Code 20020206...
Page 338 Relay Commissioning TABLES Table 7.1: ... Communication Cables to Connect the SEL-300G Relayto Other Devices .......7-10 Table 7.2: ... SET Command Editing Keystrokes ..................7-12 Table 7.3: ... SEL-300G Relay Contact I/O Viewed by the TAR Command ..........7-15 Table 7.4: ... Serial Port Commands That Clear Relay Data Buffers ............7-17 Table 7.5: ...
Page 339 Figure 7.29: Out-of-Step Single Blinder Element, Diameter and Blinder Tests........7-92 Figure 7.30: Out-of-Step Double Blinder Element, Diameter and Blinder Tests ........7-96 Figure 7.31: 87N Test Connections.......................7-100 Figure 7.32: Percentage Restraint Differential Characteristic ..............7-104 Figure 7.33: Test Connections for Parallel Current Sources..............7-111 SEL-300G Instruction Manual Date Code 20020206...
Page 341 Relay Commissioning SECTION 7: RELAY COMMISSIONING NTRODUCTION This section provides guidelines for commissioning and testing the SEL-300G Relay. Included are discussions on testing philosophies, methods, and tools, plus detailed test procedures for selected protection functions. OMMISSIONING ESTING HILOSOPHY Commissioning testing is performed when a protective relay is installed to: Ensure that all system ac and dc connections are correct.
Page 342 Operation. Low-Level Test Interface The SEL-300G Relay has a low-level test interface between the calibrated input module and the separately-calibrated processing module. You may test the relay in either of two ways: conventionally, by applying ac current and voltage signals to the relay inputs or by applying low magnitude ac voltage signals to the low-level test interface.
Page 343 Figure 7.1: Low-Level Test Interface, 0300G0 Figure 7.2: Low-Level Test Interface, 0300G1 Figure 7.3: Low-Level Test Interface, 0300G2 Figure 7.4: Low-Level Test Interface, 0300G3 SEL-300G Instruction Manual Date Code 20001212...
Page 344 The examples below show the settings necessary to route the phase time-overcurrent element 51PT to the output contacts and the SER. The 51PT element, like many in the SEL-300G Relay, is controlled by enable settings and/or torque-control settings. To enable the 51PT element, set the E51 enable setting and 51PTC torque-control setting to the following: •...
Page 345 Do not forget to reenter the correct relay settings when you are ready to place the relay in service. See Section 11: Event Reports and SER Functions for more information regarding the SER function and associated serial port commands. SEL-300G Instruction Manual Date Code 20000616...
Page 346 ROCEDURE Introduction The procedure below is intended to help you enter settings into an SEL-300G Relay and verify that the SEL-300G Relay is properly connected. Steps later in the procedure call for operation of the protected generator at no load, light load, and full load to verify ac connections and take measurements for calculation of 100% stator ground fault protection elements.
Page 347 Contact Output DC Polarity Checks STEP 14 Verify Contact Output Operation Correct Current Connections STEP 6 Remove AC Signals STEP 7 Energize Relay DWG: M300G211 Figure 7.5: Relay Commissioning Flowchart (refer to text for detailed instructions) SEL-300G Instruction Manual Date Code 20000616...
Page 348 Relay Commissioning Step 1. Ensure that dc power is removed from the SEL-300G Relay dc circuits by opening the appropriate dc breaker or removing dc fuses. Step 2. Verify the accuracy and correctness of the ac and dc connections by performing point-to-point continuity checks on the circuits associated with the SEL-300G Relay.
Page 349 SEL world wide web site at http://www.selinc.com. Serial Port 1 on all the SEL-300G Relay models is an EIA-485 port (4-wire). The Serial Port 1 plug-in connector accepts wire size AWG 24 to 12. Strip the wires 0.31 inches (8 mm) and install with a small slotted-tip screwdriver.
Page 350 C801FD SEL-2800 transceiver) A corresponding main board jumper must be installed to power the Telenetics Modem with +5 Vdc (0.5 A limit) from the SEL-300G Relay. See Figure 5.25 and Table 5.7. Digital Terminal Equipment Digital Communication Equipment SEL-300G to Computer...
Page 351 Password: ? @@@@@@ The relay is shipped with the default Access Level 1 password shown in the table under the PAS command. At the above prompt enter the default password and press the <ENTER> key. SEL-300G Instruction Manual Date Code 20001212...
Page 352 Global, SER, or Port settings, the relay is disabled while it saves the new settings. If changes are made to the Group settings for the active setting group, the relay is disabled while it saves the new settings. The ALARM contact closes Date Code 20001212 SEL-300G Instruction Manual...
Page 353 Verify relay ac connections. Connect the protective relay ac test signal source to the SEL-300G Relay through the ac protection cabinet wiring. (You may connect directly to the relay, however this does not verify the accuracy of the wiring in the protection cabinet.) Apply rated ac voltage (67 Vln, 120 Vll) and current (1 A or 5...
Page 354 LEDs (see Figure 9.3, pushbutton OTHER). For instance, the TAR 31 command associates the front-panel 87 LED with input IN101. When rated dc voltage is applied to IN101, the 87 LED illuminates. Verify Date Code 2000616 SEL-300G Instruction Manual...
Page 355 IN201 through IN208 of SEL-300G_1 and SEL-300G_Y Relays using TAR 40. When input verification is complete, press the TARGET RESET or EXIT pushbutton to reset the front-panel target LEDs. Table 7.3: SEL-300G Relay Contact I/O Viewed by the TAR Command TRIP 21/51V...
Page 356 If the relay reports I1 near zero and I2 nearly equal to IA, IB, and IC, there is a phase rotation problem. Verify the relay ac current connections and the relay Global phase rotation setting, PHROT. A nonzero 3I0 meter value indicates a phase current polarity connection problem. Date Code 2000616 SEL-300G Instruction Manual...
Page 357 Note: The PRO R and SER C commands should only be used at initial installation. Do not reset the generator operating profiles or SER buffer following routine maintenance unless you are very familiar with the use of the data contained in these buffers. SEL-300G Instruction Manual Date Code 20000616...
Page 358 Relay Rear-Panel Voltage and Current Inputs (DELTA_Y=Y) VS Source only needed for 25 Element Tests Three-Phase Voltage and Current Sources DWG: M300G113 Figure 7.9: Three Voltage Source and Three Current Source Test Connections Date Code 2000616 SEL-300G Instruction Manual...
Page 359 Connect the voltage and current sources according to Figure 7.9 or Figure 7.10. Basic Element Operation The SEL-300G Relay phase distance elements are designed to provide backup protection for phase-to-phase and three-phase faults on the power system external to the generator. The relay provides two independent protection zones.
Page 360 The voltage and current phase shift introduced by a delta-wye step-up transformer changes the voltage and current signals presented to the SEL-300G Relay during a phase-phase fault on the system. The effect is illustrated by Figure 7.11 and Figure 7.12.
Page 361 Figure 7.12: Generator Voltage and Current Relationships During a System Three-Phase Fault The Z1CMP and Z2CMP settings instruct the SEL-300G Relay to compensate for the effects of the delta-wye step-up transformer when set to 30 or -30. If these settings are not set to 0, the phase distance element test for phase-to-phase faults must be performed based on different quantities than if Z1CMP and/or Z2CMP equal 0.
Page 362 Ib = -120 - MTAn° set angle Ic = 120 - MTAn° When setting PHROT = ACB, set angle Ia = -MTAn° set angle Ib = 120 - MTAn° set angle Ic = -120 - MTAn° Date Code 2000616 SEL-300G Instruction Manual...
Page 363 LCD display and lower deck of target LEDs to display individual Relay Word rows. Press the Down arrow button twice to display Relay Word Row 39, which contains the distance element indications as shown in Table 7.5. SEL-300G Instruction Manual Date Code 20000616...
Page 364 Use the equation below to calculate the element error (DELTA_Y = D, Z1CMP = 0): æ ö − ç ÷ ⋅ Itest ç ÷ ⋅ error ç ÷ ç ÷ è ø error = _________ % Date Code 2000616 SEL-300G Instruction Manual...
Page 365 Configure the current test sources to apply balanced, three-phase currents with magnitudes equal to 1.1 ⋅ Itest, as measured by the 21P1P accuracy test performed above. Step 2. Expect 21P1T to assert Z1D seconds after the test signals are applied. SEL-300G Instruction Manual Date Code 20000616...
Page 366 Basic Element Operation The SEL-300G Relay volts/hertz element is designed to detect generator overexcitation that occurs when the generator terminal voltage is increased or operating frequency is decreased. The relay measures the generator phase-to-phase voltages and the generator frequency, then...
Page 367 Using the front-panel or serial port SHO G command, note the global FNOM, PHROT, and DELTA_Y settings: FNOM = ________ Hz (nominal generator frequency) PHROT ________ ABC or ACB (generator phase rotation) DELTA_Y ________ Y or D (phase potential connection) SEL-300G Instruction Manual Date Code 20000616...
Page 368 Table 7.6. During the manual test, as you change test voltage magnitudes, you can see the 24D1 and 24C2 Relay Word bits assert and deassert to indicate pickup and dropout of the respective elements. Date Code 2000616 SEL-300G Instruction Manual...
Page 369 Configure the voltage test source to apply balanced voltages with magnitudes equal to 1.1 ⋅ Vtest, as measured by the 24D1P test performed above. Step 2. Expect 24D1T to assert 24D1D seconds after the test signals are applied. SEL-300G Instruction Manual Date Code 20000616...
Page 370 Test Point 1, Test Point 2, and the optional Test Points 3 and 4, if desired, using the equations below. ⋅ ⋅ VNOM Vtest V secondary ⋅ Vtest1 = ___________ V secondary Date Code 2000616 SEL-300G Instruction Manual...
Page 371 Vtest V secondary Vtest3 = ___________ V secondary ⋅ ⋅ VNOM Vtest V secondary Vtest2 = ___________ V secondary Select optional Test Point 4 such that 1.1 ⋅ 24D2P2 < Test Point 4 volts/hertz SEL-300G Instruction Manual Date Code 20000616...
Page 372 24C2 Time-Delay Accuracy Test, 24CCS = I When 24CCS = I, the 24C2 element operates as an inverse-time delayed element, as shown in Figure 7.14. This test procedure uses three test points to verify that the element is operating properly. Date Code 2000616 SEL-300G Instruction Manual...
Page 373 æ ⋅ ö æ Vtestn ö ç ÷ ç ÷ VNOM è ø ç ÷ − ç ÷ ç ÷ è ø Top1 = _____________ seconds Top2 = _____________ seconds Top3 = _____________ seconds SEL-300G Instruction Manual Date Code 20000616...
Page 374 Apply the test voltages and record the element operating time, Ttest1. Remove the test voltages for at least 24CR seconds to permit the element to fully reset. Repeat using Vtest2 and Vtest3. Ttest1 = _________ seconds Ttest2 = _________ seconds Ttest3 = _________ seconds Date Code 2000616 SEL-300G Instruction Manual...
Page 375 When DELTA_Y = Y, calculate the test voltage magnitudes for Test Point 1, Test Point 2, and Test Point 3 using the equations below. ⋅ ⋅ VNOM Vtest V secondary ⋅ Vtest1 = ___________ V secondary SEL-300G Instruction Manual Date Code 20000616...
Page 376 When DELTA_Y = D, calculate the test voltage magnitudes for Test Point 1, Test Point 2, and Test Point 3 using the equations below. ⋅ ⋅ VNOM Vtest V secondary Vtest1 = ___________ V secondary Date Code 2000616 SEL-300G Instruction Manual...
Page 377 Step 3. Apply the test voltages and record the element operating time, Ttest1. Remove the test voltages for at least 24CR seconds to permit the element to fully reset. Repeat using Vtest2, Vtest3, and Vtest4. SEL-300G Instruction Manual Date Code 20000616...
Page 378 Connect the voltage sources according to Figure 7.9 or Figure 7.10. Basic Element Operation The SEL-300G Relay synchronism checking function is designed to ensure that the generator and system voltage magnitudes, phase angles, and frequencies are matched within settable limits before the generator breaker can be closed.
Page 379 The voltage elements are easiest to test by applying all three phase voltages and VS, then adjusting the applied voltage magnitudes to cause the elements under test to pick up and drop out. A combination of relay settings determine the voltage phase angles SEL-300G Instruction Manual Date Code 20000616...
Page 380 DELTA_Y = Y PHROT = B -150 SYNCP = VBC ⋅ ⋅ COMPA = 0 ⋅ ⋅ − æ VTestP ö ⋅ ÷ errorP ç è ø DELTA_Y = Y PHROT = B -150 Date Code 2000616 SEL-300G Instruction Manual...
Page 381 SYNCP = VC ⋅ COMPA = 0 DELTA_Y = D æ ö æ VTestP ö ç ⋅ − ÷ ç ÷ è ø ç ÷ ⋅ errorP PHROT = B ç ÷ ç ÷ è ø SEL-300G Instruction Manual Date Code 20000616...
Page 382 ⋅ PHROT = B ç ÷ ç ÷ è ø SYNCP = VB ⋅ COMPA = 0 æ VTestP ⋅ − ö errorP ç ⋅ ÷ è ø DELTA_Y = D PHROT = B Date Code 2000616 SEL-300G Instruction Manual...
Page 383 Level 2 SET command to program an output contact to close when the element under test picks up. Step 5. Gradually increase the magnitude of the phase voltages. Record the voltage magnitude applied to the relay when the 59VP element asserts. SEL-300G Instruction Manual Date Code 20000616...
Page 384 Step 2. Set the synch voltage source frequency equal to the FNOM nominal frequency setting. The SEL-300G Relay defines slip frequency positive when the generator frequency is greater than system frequency. The slip frequency element, SF, asserts when: 25SLO < (Generator Frequency) - (System Frequency) < 25SHI Hz...
Page 385 Voltage Element Accuracy Test before proceeding with the Static Phase Angle Accuracy Test. Step 1. Configure the voltage test sources to apply balanced, three-phase voltages and synch voltage with magnitudes and phase angles as used in the voltage element accuracy SEL-300G Instruction Manual Date Code 20000616...
Page 386 Step 2. The SEL-300G Relay defines voltage phase angle difference positive when VP leads VS. The 25A1, 25A2 angle elements use the magnitude of the phase angle difference rather than the absolute phase angle difference. That is, setting 25ANG2 = 10°...
Page 387 DELTA_Y = D, connect the voltage sources according to Figure 7.10. Current sources are not needed for this test. Basic Element Operation The SEL-300G Relay offers a variety of phase, positive-sequence, and phase-to-phase undervoltage elements. See Section 2: Relay Element Settings for complete descriptions of the available under- and overvoltage elements.
Page 388 ⋅ ÷ ÷ error è ø When DELTA_Y = D, use the equation below to calculate the 27PPn element error: æ ö − Vtest ç ç ⋅ ÷ ÷ error è ø error = _________ % Date Code 2000616 SEL-300G Instruction Manual...
Page 389 DELTA Y= D, connect the voltage sources according to Figure 7.10. Basic Element Operation The SEL-300G Relay reverse/low-forward power element is designed to detect generator motoring conditions and provide an alarm or trip. The relay measures the generator phase voltages and currents, then calculates the three-phase power in per unit of the generator nominal power using the equation: ⋅...
Page 390 Set the phase angle of Ip equal to the phase angle of Vp - 180° phase angle of Vp Relay Word bit 32Pn is logical 1 when Relay Word bit 32Pn is logical 1 when |Ip| > |Iopn| |Ip| < |Iopn| Date Code 2000616 SEL-300G Instruction Manual...
Page 391 Relay Word bits may be asserted, depending on relay settings. During the manual test, as you change test current magnitudes, you can see the 32P1 and 32P2 Relay Word bits assert and deassert to indicate pickup and dropout of the respective elements. SEL-300G Instruction Manual Date Code 20000616...
Page 392 (element definite-time delay) 32P2P = ________ per unit reverse power (element pickup setting) 32P2D = ________ seconds (element definite-time delay) 32PTC = __________________________________________________________ Torque-Control Setting (elements are enabled when 32PTC = logical 1) Date Code 2000616 SEL-300G Instruction Manual...
Page 393 If you prefer to monitor a contact closure to indicate element pickup, use the Access Level 2 SET command to program an output contact to close when the element under test picks up. SEL-300G Instruction Manual Date Code 20000616...
Page 394 Configure the voltage test sources to apply balanced voltages with magnitudes and phase angles as used for the element accuracy tests above (go to Step 2 or Step 3). Set the current phase angles as you did in the element accuracy tests. Date Code 2000616 SEL-300G Instruction Manual...
Page 395 DELTA = D, connect the voltage and current sources according to Figure 7.10. Basic Element Operation The SEL-300G Relay loss-of-field element consists of two offset phase mho zones that operate on the basis of positive-sequence impedance. The 40Z1 and 40Z2 elements are definite-time, offset mho elements that operate using positive- sequence impedance.
Page 396 Ic = -30° Refer to Figure 7.17 and Figure 7.18. In these figures, the phase current necessary to apply the test at the point indicated by the vector TestXAn is calculated using the following equation: Date Code 2000616 SEL-300G Instruction Manual...
Page 397 Asserted DWG: M300G109 Figure 7.17: Loss-of-Field Element Diameter and Offset Tests, 40XD2 < 0 40XD2 40Z2 Relay Test XA2 Word bit Asserted 40Z2P DWG: M300G110 Figure 7.18: Loss-of-Field Element Diameter Test, 40XDn > 0 SEL-300G Instruction Manual Date Code 20000616...
Page 398 SG1 or SG2 will be asserted, depending on which relay setting group is active. During the manual test, as you change test current magnitudes, you can see the 40Z1 and 40Z2 Relay Word bits assert and deassert to indicate pickup and dropout of the respective elements. Date Code 2000616 SEL-300G Instruction Manual...
Page 399 ø æ ö − ç ÷ ⋅ ItestXBn ç ÷ ⋅ errorXBn (DELTA_Y = D) ç ÷ ç ÷ è ø errorXB1 = _________ % errorXB2 = _________ % (applicable when 40XD2 < 0) SEL-300G Instruction Manual Date Code 20000616...
Page 400 Calculate x and y: ⋅ δ sin( x = _________ ohms ⋅ δ cos( y = _________ ohms Calculate the magnitude of the impedance vector Z1: é ù ê ú ë û Z1 = _________ ohms Date Code 2000616 SEL-300G Instruction Manual...
Page 401 ⋅ IopXA = ________ A secondary For each test phase angle, increase the three-phase current magnitudes together until the element under test picks up. Record the test current magnitude. ItestXA = ________ A secondary SEL-300G Instruction Manual Date Code 20000616...
Page 402 1.1⋅ItestXAn, as determined by the previous test. The element time is calculated from the instant current signals are applied until the 40ZnT Relay Word bit asserts. Record the element operating time, Ttestn. Date Code 2000616 SEL-300G Instruction Manual...
Page 403 Figure 7.20: Single Current Source Test Connection Basic Element Operation The SEL-300G Relay negative-sequence overcurrent element is designed to detect current unbalance in the generator. The relay measures the generator phase currents, calculates the negative-sequence current, then operates definite-time and inverse-time protection elements.
Page 404 LCD display and lower deck of target LEDs to display individual Relay Word rows. Press the Down arrow button several times to display Relay Word Row 6, which contains the negative-sequence overcurrent element indications, as shown in Table 7.14. Date Code 2000616 SEL-300G Instruction Manual...
Page 405 The object of the Element Timing Accuracy Test is to apply predefined signals to the relay and measure the element response time. There are two methods available to measure the element response time, SER review and output contact operation. These methods are described in Test Methods beginning on page 7-4. SEL-300G Instruction Manual Date Code 20000616...
Page 406 46Q2 Inverse-Time Accuracy Test The 46Q2 negative-sequence overcurrent element operates as an inverse-time delayed element, as shown in Figure 7.21. This test procedure uses three test points to verify that the element is operating properly. Date Code 2000616 SEL-300G Instruction Manual...
Page 407 Based on the two timing test descriptions above (SER or output contact driving an external timer), select one method and make the settings and connections necessary to support the selection. Configure the current test source to apply single-phase current with a magnitude equal to Itest1. SEL-300G Instruction Manual Date Code 20000616...
Page 408 Connect the current source according to Figure 7.20. Basic Element Operation The SEL-300G Relay offers a variety of phase, residual, and neutral overcurrent elements. These elements offer instantaneous, definite-time, and inverse-time operating characteristics. You can test any of the elements using a single-phase current source.
Page 409 This test applies signals greater than the pickup and measures the element definite operating time. Step 1. Based on the two timing test descriptions above (SER or output contact driving an external timer), select one method and make the settings and connections necessary to SEL-300G Instruction Manual Date Code 20000616...
Page 410 Apply the test current and record the element operating time, Ttest1. Remove the test current for a few minutes to permit the element to fully reset if electromechanical reset is enabled for the element under test. Repeat using Itest2 and Itest3. Date Code 2000616 SEL-300G Instruction Manual...
Page 411 = _________ % error3 = _________ % Voltage Controlled Time-Overcurrent (51C) Element Equipment Needed • SEL-300G Relay under test. • Two- or Three-Phase Voltage plus a Single-Phase Current AC Test Source with adjustable magnitude and phase angle between the signals. •...
Page 412 Using the front-panel or serial port SHO command, note the settings associated with the 51C overcurrent element. EBUP = C (setting enables the voltage-controlled time-overcurrent elements) 51CP = ________ A secondary (element pickup setting) 51CC = ________ (element curve selection) 51CTD = ________ (element time-dial selection) Date Code 2000616 SEL-300G Instruction Manual...
Page 413 Table 7.15. During the manual test, as you change the test current magnitude, you can see the 51C Relay Word bit asserts and deasserts to indicate pickup and dropout of the element. SEL-300G Instruction Manual Date Code 20000616...
Page 414 (see Overcurrent Elements in Section 2: Relay Element Settings), and using M = 3, 5, and 7 as defined above. Top1 = _____________ seconds Top2 = _____________ seconds Top3 = _____________ seconds Date Code 2000616 SEL-300G Instruction Manual...
Page 415 = _________ % error3 = _________ % Voltage Restrained Time-Overcurrent (51V) Element Equipment Needed • SEL-300G Relay under test. • Two- or Three-Phase Voltage plus a Single-Phase Current AC Test Source with adjustable magnitude and phase angle between the signals. •...
Page 416 (DELTA_Y = D) Iop1 = ________ A secondary Vop1 = _______ V secondary ⋅ A secondary VNOM ⋅ V secondary (DELTA_Y = Y) ⋅ VNOM V secondary (DELTA_Y = D) Iop2 = ________ A secondary Date Code 2000616 SEL-300G Instruction Manual...
Page 417 Apply VNOM/1.73 (DELTA_Y = Y) or VNOM (DELTA_Y = D) to the remaining phase(s). Gradually increase the magnitude of the test current. Record the current magnitude applied to the relay when the 51V element asserts. SEL-300G Instruction Manual Date Code 20000616...
Page 418 (see Overcurrent Elements in Section 2: Relay Element Settings), and using M = 3, 5, and 7, as defined above. Top1 = _____________ seconds Top2 = _____________ seconds Top3 = _____________ seconds Date Code 2000616 SEL-300G Instruction Manual...
Page 419 Itest2 = ___________ A secondary ⋅ æ Vtest ö ⋅ ÷ ⋅ Itest ç A secondary (DELTA_Y = Y) VNOM è ø Vtest æ ö ⋅ ÷ ⋅ Itest A secondary (DELTA_Y = D) ç VNOM è ø SEL-300G Instruction Manual Date Code 20000616...
Page 420 Step 1 above. Overvoltage (59) Elements Equipment Needed • SEL-300G Relay under test. • Single-Phase AC Voltage Test Source with adjustable magnitude. • PC with terminal emulation software and appropriate serial cable to connect the PC-COM port to the relay.
Page 421 Figure 7.25: One Voltage Source Test Connection (DELTA_Y = D) Basic Element Operation The SEL-300G Relay offers a variety of phase, phase-to-phase, positive-sequence, negative- sequence, and residual overvoltage elements. You can test any of the elements using a single- phase voltage source.
Page 422 = _________ % 100% Stator Ground (64) Element Equipment Needed • SEL-300G Relay under test. • Single-Phase AC Voltage Test Source with adjustable magnitude for 64G1 element test. • Two Single-Phase AC Voltage Test Sources with adjustable magnitude and frequency for 64G2 element test (64RAT ≠...
Page 423 64GTC = ___________________________________________________________ Torque-Control Setting (element is enabled when 64GTC = logical 1) Using the front-panel or serial port SHO G command, note the global FNOM setting: FNOM = ________ Hz (nominal generator frequency) SEL-300G Instruction Manual Date Code 20000616...
Page 424 Element Pickup Accuracy Test before proceeding with the Element Timing Accuracy Test. The object of the Element Timing Accuracy Test is to apply predefined signals to the relay and measure the element response time. There are two methods available to measure the element Date Code 2000616 SEL-300G Instruction Manual...
Page 425 64G2 Element Operating Accuracy Test, 64RAT ≠ ≠ ≠ ≠ 0 Step 1. Connect the voltage sources according to Figure 7.27. Relay Rear-Panel Voltage and Current Inputs DWG: M300G122 Two-Phase Voltage Sources Figure 7.27: 64G2 Element Test Connections, 64RAT ≠ ≠ ≠ ≠ 0 SEL-300G Instruction Manual Date Code 20000616...
Page 426 Level 2 SET command to program an output contact to close when the element under test picks up. Step 4. Gradually decrease the neutral voltage magnitude. Record the test voltage applied to the relay when the 64G2 Relay Word bit asserts. Vtest = ________ volts Date Code 2000616 SEL-300G Instruction Manual...
Page 427 Calculate the relay timing error using the equation: − æ Ttest ö ⋅ ÷ error ç è ø error = _________ % 64G2 Element Operating Accuracy Test, 64RAT = 0 Step 1. Connect the voltage sources according to Figure 7.28. SEL-300G Instruction Manual Date Code 20000616...
Page 428 Set the neutral voltage test source frequency equal to 3⋅FNOM. Set the magnitude of the test source connected to the VN input greater than the 64G2P setting. Calculate the expected element operate voltage using the equation: Date Code 2000616 SEL-300G Instruction Manual...
Page 429 Step 3 above. Configure the neutral voltage test source to switch from the original magnitude to a voltage magnitude equal to 0.9⋅ Vtest volts, as determined in Step 4, above. SEL-300G Instruction Manual Date Code 20000616...
Page 430 = _________ % Out-of-Step (78) Element–Single Blinder Equipment Needed • SEL-300G Relay under test. • Two- or Three-Phase AC Voltage and Current Test Source, with adjustable magnitude. • PC with terminal emulation software and appropriate serial cable to connect the PC-COM port to the relay.
Page 431 Ia = 90° set angle Ib = -30° set angle Ic = -150° When setting PHROT = ACB, set angle Ia = 90° set angle Ib = -150° set angle Ic = -30° SEL-300G Instruction Manual Date Code 20000616...
Page 432 Record the applied current magnitude when the 78Z1 element asserts. Itest78Z1 = ____________________ A secondary Step 5. Use the equations below to calculate the element error: é ù − setting ê ë ú û Itest ⋅ error78Z1 = (DELTA_Y = Y) setting Date Code 2000616 SEL-300G Instruction Manual...
Page 433 78R1. Expected value: Iop78R1 = (DELTA_Y = Y) ohms Iop78R1 = (DELTA_Y = D) ⋅ ohms Expected Iop78R1 = _________ A secondary SEL-300G Instruction Manual Date Code 20020206...
Page 434 78R1. For purposes of accuracy testing for 78R1, ignore assertions of other elements. Similarly, during the accuracy test for the 78R2 other elements such as 78R1 and 78Z1 will assert prior to the assertion of 78R2. Date Code 20020406 SEL-300G Instruction Manual...
Page 435 Relay Commissioning 7-95 Out-of-Step (78) Element–Double Blinder Equipment Needed • SEL-300G Relay under test. • Two- or Three-Phase AC Voltage and Current Test Source, with adjustable magnitude. • PC with terminal emulation software and appropriate serial cable to connect the PC-COM port to the relay.
Page 436 Basic Element Operation The SEL-300G Relay over/underfrequency elements measure the frequency of the voltage applied to the relay. Underfrequency operation is defined when an element pickup setting is less than the nominal generator frequency setting, FNOM. Overfrequency operation is defined when...
Page 437 TARGET function. Press the front-panel OTHER pushbutton, use the Down arrow button to underline the word TAR in the LCD display, then press SELECT. This command SEL-300G Instruction Manual Date Code 20000616...
Page 438 The 81DnT Relay Word bit asserts 81DnD seconds after the measured frequency falls below the element underfrequency setting or climbs above the element overfrequency setting. The Element Pickup Accuracy Test verified the accuracy of the pickup settings. This test measures the element definite operating time. Date Code 2000616 SEL-300G Instruction Manual...
Page 439 ø error = _________ % Ground Differential (87N) Element Equipment Needed • SEL-300G Relay under test. • Two AC Current Test Sources with adjustable magnitude. • PC with terminal emulation software and appropriate serial cable to connect the PC-COM port to the relay.
Page 440 Figure 7.31: 87N Test Connections Basic Element Operation The SEL-300G Relay ground differential element detects generator ground faults on solidly or low-impedance grounded generators by calculating the difference between the neutral current and the residual current. When a generator ground fault occurs between the phase current transformers and the neutral current transformer, the difference current will be nonzero.
Page 441 LCD display and lower deck of target LEDs to display individual Relay Word rows. Press the Down arrow button twice to display Relay Word Row 38, which contains the volts/hertz ground differential element indications as shown in Table 7.19. SEL-300G Instruction Manual Date Code 20000616...
Page 442 Use the equation below to calculate the element error using Atest2 and the applied neutral current, IN: æ ö æ ö ç − ⋅ − ÷ Atest ç ÷ CTRN è ø ç ÷ ⋅ error ç ÷ ç ÷ è ø error = _________ % Date Code 2000616 SEL-300G Instruction Manual...
Page 443 You may wish to test the 87N2D timer using the same procedure. Current Differential (87) Elements Equipment Needed • SEL-300G Relay under test. • Two Single-Phase AC Current Test Sources with adjustable magnitude. • PC with terminal emulation software and appropriate serial cable to connect the PC-COM port to the relay.
Page 444 7-104 Relay Commissioning Basic Element Operation The SEL-300G Relay has several components to its differential element. Figure 7.32 gives a representation of the differential characteristic and the plot of each test. 87U Unrestrained Element Operating Region U87P Selected IRT Test Points...
Page 445 Step 4. Gradually increase the current magnitude. Record the test current applied to the relay when the 87U Relay Word bit asserts. Itest = ________ amps Use the equation below to calculate the element error: SEL-300G Instruction Manual Date Code 20000616...
Page 446 LCD display and lower deck of target LEDs to display individual Relay Word rows. Press the Down arrow button several times to display Relay Word Row 33, which contains the 87R element indications, as shown in Table 7.22. Date Code 2000616 SEL-300G Instruction Manual...
Page 447 TAP1 = ________ A (phase current input tap quantity) TAPD = ________ A (87-input tap quantity) O87P = ________ multiple of TAP (restrained element pickup setting) SLP1 = ________ % (restrained element slope 1 percentage) SEL-300G Instruction Manual Date Code 20000616...
Page 448 Row 33, which contains the 87R element indications, as shown in Table 7.22. During the manual test, as you change the test current, you can see the Relay Word bits assert and deassert to indicate pickup and dropout of the respective elements. Date Code 2000616 SEL-300G Instruction Manual...
Page 449 ÷ è ø IOP = __________ multiples of TAP Calculate the expected current for IA and IA87 at the restrained differential element SLP1 threshold for the test point selected above using the following formula: SEL-300G Instruction Manual Date Code 20000616...
Page 450 E87 = G or when E87 = T and PCT2 = OFF. Step 1. Connect current sources to the IA current inputs, as shown in Figure 7.33. Date Code 2000616 SEL-300G Instruction Manual...
Page 451 Current Source 2 magnitude. Record the test current applied to the relay when the 87R Relay Word bit deasserts. The test current should closely equal the IA2 value calculated in Step 3. Itest = ________ amps SEL-300G Instruction Manual Date Code 20000616...
Page 452 CT tap, per the CTR and CTRD settings. If mismatch remains on all three phases, check the CTR and CTRD settings to ensure that they are correct, per the actual CT ratio. Date Code 20010824 SEL-300G Instruction Manual...
Page 453 Then, I87 should lead IW1 by 150°. If E87 = T TRCON = GEN, CTCON = DAB TRCON = DACY, CTCON = Y TRCON = YDAB, CTCON = Y Then, I87 should lag IW1 by 150°. SEL-300G Instruction Manual Date Code 20000616...
Page 455 View or Reset Energy Metering Information..............8-12 Via Serial Port ......................8-12 Via Front Panel......................8-13 Energy Metering Updating and Storage................8-13 Maximum/Minimum Metering ....................8-13 View or Reset Maximum/Minimum Metering Information..........8-13 Via Serial Port ......................8-13 Via Front Panel......................8-13 Maximum/Minimum Metering Updating and Storage............8-14 SEL-300G Instruction Manual Date Code 20000616...
Page 456 Monitoring and Metering Functions FIGURES Figure 8.1: Breaker Monitor Accumulates 10% Wear................8-5 Figure 8.2: Breaker Monitor Accumulates 25% Wear................8-6 Figure 8.3: Breaker Monitor Accumulates 50% Wear................8-7 Figure 8.4: Breaker Monitor Accumulates 100% Wear................8-8 Date Code 20000616 SEL-300G Instruction Manual...
Page 457: Section 8: Monitoring And Metering Functions
Maximum/Minimum Metering This section explains these functions in detail. ENERATOR PERATING TATISTICS The SEL-300G Relay helps track the performance and utilization of the protected generator by tracking several generator operating statistics such as: • Total Generator Running Hours • Total Generator Stopped Hours •...
Page 458: Generator Accumulated I
Generator Accumulated I Because the detrimental mechanical effects of unbalance current on the generator are cumulative, the SEL-300G Relay records the accumulated I t experienced by the generator over time. The relay advances this time whenever the negative-sequence time-overcurrent element is picked up, as indicated by Relay Word bit 46Q2.
Page 459: Resetting The Averages And Accumulators
Refer to Figure 8.3. The current value changes from 2.5 kA to 12.0 kA. 12.0 kA is interrupted 11 times (11 close/open operations = 24 – 13), pushing the breaker maintenance curve from the 25% wear level to the 50% wear level. SEL-300G Instruction Manual Date Code 20000616...
Page 460: 50% To 100% Breaker Wear
(see View or Reset Breaker Monitor Information that follows later). The current and trip counts continue to be accumulated, until reset by the BRE R command. Additionally, logic outputs assert for alarm or other control applications – see the following discussion. Date Code 20000616 SEL-300G Instruction Manual...
Page 461 Monitoring and Metering Functions 100% 10,000 1000 kA Interrupted per DWG: M300G132 Operation Figure 8.1: Breaker Monitor Accumulates 10% Wear SEL-300G Instruction Manual Date Code 20000616...
Page 462 Monitoring and Metering Functions 100% 10,000 1000 6 7 8 9 kA Interrupted per DWG: M300G133 Operation Figure 8.2: Breaker Monitor Accumulates 25% Wear Date Code 20000616 SEL-300G Instruction Manual...
Page 463 Monitoring and Metering Functions 100% 10,000 1000 7 8 9 kA Interrupted per DWG: M300G134 Operation Figure 8.3: Breaker Monitor Accumulates 50% Wear SEL-300G Instruction Manual Date Code 20000616...
Page 464 Monitoring and Metering Functions 100% 10,000 1000 kA Interrupted per DWG: M300G135 Operation Figure 8.4: Breaker Monitor Accumulates 100% Wear Date Code 20000616 SEL-300G Instruction Manual...
Page 465: Breaker Monitor Output
Relay Word bit BCWA asserts (BCWA = logical 1). Execution of the BRE R command resets the wear levels for all three phases back to 0% and consequently causes Relay Word bit BCWA to deassert (BCWA = logical 0). SEL-300G Instruction Manual Date Code 20000616...
Page 466: Via Front Panel
ATTERY ONITOR The station dc battery monitor in the SEL-300G Relay can alarm for under- or overvoltage dc battery conditions and give a view of how much the station dc battery voltage dips when tripping, closing, and other dc control functions take place. The monitor measures the station dc battery voltage applied to the rear-panel terminals labeled POWER, Z25, and Z26.
Page 467: View Station Dc Battery Voltage
Vdc in the event report. Station DC Battery Voltage Dips During Circuit Breaker Closing To generate an event report when the SEL-300G Relay closes the circuit breaker, make the Control Equation event report generation setting: OGIC /OUT105 + ...
Page 468: Operation Of Station Dc Battery Monitor When Ac Voltage Is Powering The Relay
Operation of Station DC Battery Monitor When AC Voltage is Powering the Relay If the SEL-300G Relay has a 125/250 Vac/Vdc supply, it can be powered by ac voltage (85 to 264 Vac) connected to the rear-panel terminals labeled POWER. When powering the relay with ac voltage, the dc voltage elements in Figure 3.4 see the average of the sampled ac voltage...
Page 469 Section 9: Front-Panel Operation. Energy Metering Updating and Storage The SEL-300G Relay updates energy values approximately every 2 seconds. The relay stores energy values to nonvolatile storage once per day (it overwrites the previous stored value). Should the relay lose control power, it will restore the energy values saved by the relay at 23:50 hours on the previous day.
Page 470: Maximum/Minimum Metering Updating And Storage
Megawatt and megavar values are subject to the above voltage and current thresholds. The SEL-300G Relay stores maximum/minimum values to nonvolatile storage once per day (it overwrites the previous stored value if it is exceeded). Should the relay lose control power, it will restore the maximum/minimum values saved by the relay at 23:50 hours on the previous day.
Page 471 Figure 9.1: SEL-300G Relay Front-Panel Pushbuttons – Overview............9-2 Figure 9.2: SEL-300G Relay Front-Panel Pushbuttons – Primary Functions.........9-3 Figure 9.3: SEL-300G Relay Front-Panel Pushbuttons – Primary Functions (continued) .....9-4 Figure 9.4: SEL-300G Relay Front-Panel Pushbuttons – Secondary Functions........9-5 Figure 9.5: Local Control Switch Configured as an ON/OFF Switch ............9-6 Figure 9.6: Local Control Switch Configured as an OFF/MOMENTARY Switch ........9-6...
Page 473: Section 9: Front-Panel Operation
This section describes how to get information, make settings, and execute control operations from the relay front panel. It also describes the default displays. RONT ANEL ARGET Table 9.1: SEL-300G Relay Front-Panel Target LED Definitions LED Label Definition Number Relay Enabled – see subsection Relay Self-Test Alarms in Section 4: ®...
Page 474: Target Reset/Lamp Test Front-Panel Pushbutton
DWG: M300G136 Function (see Figure 9.4) Figure 9.1: SEL-300G Relay Front-Panel Pushbuttons – Overview Primary Functions Note in Figure 9.2 and Figure 9.3 that the front-panel pushbutton primary functions correspond to serial port commands – both retrieve the same information or perform the same function. To...
Page 475: Front-Panel Password Security
Access Level 1 password through the front panel. DWG: M300G137 Figure 9.2: SEL-300G Relay Front-Panel Pushbuttons – Primary Functions Front-Panel Password Security Refer to the comments at the bottom of Figure 9.3 concerning Access Level B and Access Level 2 passwords.
Page 476: Secondary Functions
***** Local control is not available through the serial port and does not require the entry of a password. DWG: M300G138 Figure 9.3: SEL-300G Relay Front-Panel Pushbuttons – Primary Functions (continued) Secondary Functions After a primary function is selected (see Figure 9.2 and Figure 9.3), the pushbuttons revert to operating on their secondary functions (see Figure 9.4).
Page 477 Front-panel pushbutton functions that correspond to Access Level 1 serial port commands do not require the entry of the Access Level 1 password through the front panel. DWG: M300G139 Figure 9.4: SEL-300G Relay Front-Panel Pushbuttons – Secondary Functions SEL-300G Instruction Manual Date Code 20000616...
Page 478: Local Control Function Description
Figure 9.6: Local Control Switch Configured as an OFF/MOMENTARY Switch position Relay Word OFF position Logical 1 (n=1 through 16) (logical 0) MOMENTARY DWG: M300G145 position Figure 9.7: Local Control Switch Configured as an ON/OFF/MOMENTARY Switch Date Code 20000616 SEL-300G Instruction Manual...
Page 479: View Local Control (With Factory Settings)
Press the right arrow pushbutton, and scroll back to the first set local control switch in the factory default settings: GEN SHUTDOWN Local RETURN Logical 1 GEN SHUTDOWN ←→ (logical 0) Position: RETURN TRIP DWG: M300G080 SEL-300G Instruction Manual Date Code 20000616...
Page 480 See Local Control Switches in Section 4: SEL Control Equations for details on how local OGIC bit outputs LB1 and LB2 are set in SEL Control Equation settings to respectively trip and OGIC close a circuit breaker. Date Code 20000616 SEL-300G Instruction Manual...
Page 481: Local Control State Retained When Relay Deenergized
OTATING EFAULT ISPLAY The relay name, “SEL-300G”, displays if no local control is operational (i.e., no corresponding switch position label settings were made) and no display point labels or metering quantities are enabled for display.
Page 483 Port Connector and Communications Cables................10-1 IRIG-B..........................10-2 SEL-300G to Computer.......................10-2 SEL-300G to Modem ......................10-3 SEL-300G to SEL-PRTU ....................10-4 SEL-300G to SEL-2020 or SEL 2030.................10-4 Communications Protocol ......................10-5 Hardware Protocol.......................10-5 Software Protocols ......................10-6 SEL ASCII Protocol ....................10-6 SEL Distributed Port Switch Protocol (LMD) ............10-7 SEL Fast Meter Protocol.....................10-7...
Page 484 Table 10.4: Serial Communications Port Pin/Terminal Function Definitions ........10-5 Table 10.5: Serial Port Automatic Messages ..................10-8 Table 10.6: Serial Port Command Summary..................10-10 Table 10.7: SEL-300G Relay Word and Its Correspondence to TAR Command.........10-29 Table 10.8: SEL-300G Relay Control Subcommands ................10-35 Table 10.9: SEL-300G Error Messages ....................10-38 FIGURES Figure 10.1: DB-9 Connector Pinout for EIA-232 Serial Ports ..............10-1...
Page 485: Commands
Serial Port Communications and Commands 10-1 SECTION 10: SERIAL PORT COMMUNICATIONS AND COMMANDS NTRODUCTION Various serial ports are available in the following SEL-300G Relay models: Table 10.1: SEL-300G Relay Available Serial Ports Rear Panel Front Panel Serial Port 1 Serial Port 2...
Page 486: Irig-B
Serial Port Communications and Commands IRIG-B You can input the demodulated IRIG-B time code into Serial Port 2 on any of the SEL-300G Relay models This is handled adeptly by connecting Serial Port 2 of the SEL-300G Relay to an SEL-2020 or an SEL-2030 with Cable C273A (see cable diagrams that follow in this section).
Page 487: Sel-300G To Modem
25-Pin Female “D” Subconnector “D” Subconnector 7 GND 3 RXD 2 TXD 1 RTS 4 CTS 5 GND SEL-300G to Modem Cable C222 SEL-300G Relay DCE** Device 9-Pin Male 25-Pin Female “D” Subconnector “D” Subconnector 7 GND 2 TXD (IN)
Page 488 9-Pin Male Round Conxall “D” Subconnector 5 GND 2 RXD 3 TXD 7 RTS 8 CTS 9 GND SEL-300G to SEL-2020 or SEL 2030 Cable C273A SEL-2020/2030 SEL-300G Relay 9-Pin Male 9-Pin Male “D” Subconnector “D” Subconnector 3 TXD 2 RXD...
Page 489: Communications Protocol
Y, the relay does not send characters until the CTS input is asserted. If RTSCTS H, the relay permanently asserts the RTS line (for MOD PROTO) When PROTO = LMD, the RTSCTS setting is hidden and hardware handshaking is disabled. SEL-300G Instruction Manual Date Code 20020206...
Page 490: Software Protocols
10-6 Serial Port Communications and Commands Software Protocols The SEL-300G Relay provides standard SEL ASCII, SEL Distributed Port Switch Protocol ® (LMD), SEL Fast Meter, SEL Compressed ASCII, and Modbus RTU protocols. Only one port at a time can be set for the Modbus RTU protocol. The relay activates protocols on a per-port basis.
Page 491: Sel Distributed Port Switch Protocol (Lmd)
SEL Compressed ASCII protocol provides compressed versions of some of the relay ASCII commands. The protocol is described in Appendix E: Compressed ASCII Commands. Modbus RTU Protocol Modbus RTU protocol provides binary multidrop communication with the SEL-300G. The protocol is described in Appendix F: Modbus RTU Communications Protocol. ERIAL...
Page 492: Serial Port Access Levels
The ACC command takes the relay to Access Level 1 [see ACC, BAC, and 2AC Commands (Go to Access Level 1, B, or 2) in the Command Explanations subsection for more detail]. Access Level 1 When the relay is in Access Level 1, the relay sends the following prompt: => Date Code 20000616 SEL-300G Instruction Manual...
Page 493 When the relay is in Access Level 2, the relay sends the prompt: =>> Commands ACC through STA C in Table 10.6 are available from Access Level 2. For example, enter the SET command at the Access Level 2 prompt to make relay settings: =>>SET <ENTER> SEL-300G Instruction Manual Date Code 20000616...
Page 494: Command Summary
MET RM Reset max/min metering => MET RP Reset peak demand ammeter => MET T Thermal Metering Data => Display generator operation profile => Quit access level => Sequential Events Recorder => Show/view settings Date Code 20000616 SEL-300G Instruction Manual...
Page 495 EVE command, where it is the time the event occurred). The serial port command explanations that follow in the Command Explanations subsection are in the same order as the commands listed in Table 10.6. SEL-300G Instruction Manual Date Code 20000616...
Page 496: Command Explanations
The relay is shipped with the default Access Level 1 password shown in the table under the PAS command later in this section. At the above prompt enter the default password and press the <enter> key. The relay responds: GENERATOR Date: 01/17/98 Time: 09:46:47.237 TERMINAL Level 1 => Date Code 20000616 SEL-300G Instruction Manual...
Page 497: Access Level Attempt (Password Not Required)
LAST RESET 01/17/98 09:45:35 => See the BRE n command in Access Level 2 Commands that follows in this section and Breaker Monitor in Section 8: Monitoring and Metering Functions for further details on the breaker monitor. SEL-300G Instruction Manual Date Code 20000616...
Page 498: Dat Command (View/Change Date)
The event summaries include the date and time the event was triggered, the type of event, the maximum phase current in the event, the power system frequency, the number of the active setting group, and the front-panel targets. Date Code 20000616 SEL-300G Instruction Manual...
Page 499 If an IRIG-B signal is present, the relay synchronizes its internal clock with IRIG-B. It is not necessary to issue the IRI command to synchronize the relay clock with IRIG-B. Use the IRI command to determine if the relay is properly reading the IRIG-B signal. SEL-300G Instruction Manual Date Code 20000616...
Page 500 =>MET k <ENTER> where k is an optional parameter to specify the number of times (1 - 32767) to repeat the meter display. If k is not specified, the meter report is displayed once. The output from an SEL-300G Relay is shown: =>MET <ENTER>...
Page 501 Reset Time Demand, Peak Last time the demands and peak demands were reset To view demand metering values, enter the command: =>MET D <ENTER> The output from an SEL-300G Relay is shown: =>MET D <ENTER> GENERATOR Date: 01/20/98 Time: 07:59:03.241...
Page 502 Second-Harmonic Currents Winding 1, Winding 2, and Winding 3 in multiples of TAP and percent of their respective operate quantities. To view differential meter quantities, enter the command: =>MET DIF<ENTER> The output from an SEL-300G Relay is shown below: =>MET Dif <ENTER> GENERATOR Date: 03/06/98 Time: 08:21:19.744...
Page 503 Serial Port Communications and Commands 10-19 The output from an SEL-300G Relay is shown: =>MET E <ENTER> GENERATOR Date: 01/20/98 Time: 07:59:18.992 TERMINAL MWhA MWhB MWhC MWh3P MVARhA MVARhB MVARhC MVARh3P 113.3 113.5 113.9 340.7 14.1 LAST RESET 01/19/98 16:50:09.245 =>...
Page 504 3 BRG = 94 4 NONE 5 WDG = 140 6 WDG = 137 7 WDG = 136 8 NONE 9 WDG = 142 10 NONE 11 AMB = 78 12 OTH = 105 => Date Code 20000616 SEL-300G Instruction Manual...
Page 505: Pro Command (Display Generator Operation Profile)
• Accumulated I • Three-phase power output averages • Generator time of operation in 0.1 Hz frequency bands from 40.0 to 69.9 Hz To view the generator operation profile, enter the command: =>PRO <ENTER> SEL-300G Instruction Manual Date Code 20000616...
Page 506: Qui Command (Quit Access Level)
10-22 Serial Port Communications and Commands The output from an SEL-300G Relay is shown: =>PRO <ENTER> GENERATOR Date: 01/17/98 Time: 09:47:45.114 TERMINAL 81AC Off-Frequency Time Accumulators Since: 01/17/98 09:46 Frequency Band 1, 59.5 to 58.8: 0.0s or 0.0% of limit setting Frequency Band 2, 58.8 to 58.0:...
Page 507 The SHO commands display only the enabled settings. To display all settings, including disabled/hidden settings, append an A to the SHO command (e.g., SHO 1 A). Below are sample SHOWSET commands for the SEL-300G Relay model 0300G10, showing all the setting categories. The settings for the other SEL-300G Relay models are similar.
Page 508 = 2.40 LBND6 = 40.0 TNBD6 = 1.00 62ACC = 0.16 ONLINE =!27B81 * !3PO TAP1 = 5.00 TAPD = 5.00 U87P = 10.0 O87P = 0.30 SLP1 = 40 (continued on next page) Date Code 20000616 SEL-300G Instruction Manual...
Page 509 =TRIP1 OUT102 =TRIP2 OUT103 =TRIP3 Press RETURN to continue OUT104 =TRIP4 OUT105 =CLOSE OUT106 =60LOP OUT107 =24D1T + 46Q1T + BCW + BNDA + BNDT + !(DCLO * DCHI) OUT201 (continued on next page) SEL-300G Instruction Manual Date Code 20000616...
Page 510 =GEN BKR OPEN =IN102 DP2_1 =FIELD BKR CLOSED DP2_0 =FIELD BKR OPEN =SG1 DP3_1 =GROUP 1 ACTIVE DP3_0 =GROUP 2 ACTIVE =SV2T Press RETURN to continue DP4_1 =INAD ARMED DP4_0 =LT2 DP5_1 =INAD TRIP DP5_0 =LT1 Date Code 20000616 SEL-300G Instruction Manual...
Page 511 ALIAS13 =LT3 DC_FAULT FAULT RESET ALIAS14 =DP3 GROUP_CHANGE GROUP_1_ACTIVE GROUP_2_ACTIVE ALIAS15 =TRGTR TARGET_RESET PRESSED RELEASED ALIAS16 =SV2T INAV_ENR_SCHM ARMED RESET ALIAS17 =INADT INAV_ENR_SCHM TRIPPED TR_RESET ALIAS18 =IN101 GEN_MAIN_BKR CLOSED OPENED ALIAS19 =IN102 FIELD_BKR CLOSED OPENED ALIAS20 =NA => SEL-300G Instruction Manual Date Code 20000616...
Page 512: Sta Command (Relay Self-Test Status)
=>STA n <ENTER> where n is an optional parameter to specify the number of times (1 - 32767) to repeat the status display. If n is not specified, the status report is displayed once. The output of an SEL-300G Relay is shown: =>STA <ENTER>...
Page 513: Tar Command (Display Relay Element Status)
Word row is displayed once. Clears front-panel tripping target LEDs. Unlatches the trip TAR R logic for testing purposes (see Figure 4.6). Shows Relay Word Row 0. Table 10.7: SEL-300G Relay Word and Its Correspondence to TAR Command TAR 0 LOP 60 TRIP 21/51V...
Page 514 TAR 41 TAR 42 OUT201 OUT202 OUT203 OUT204 OUT205 OUT206 OUT207 OUT208 OUT209 OUT210 OUT211 OUT212 TAR 43 TAR 44 50H2A 50H2B 50H2C TAR 45 TAR 46 SET1 SET2 SET3 SET4 SET5 SET6 SET7 SET8 Date Code 20000616 SEL-300G Instruction Manual...
Page 515 <ENTER>. Separate the hours, minutes, and seconds with colons, semicolons, spaces, commas, or slashes. To set the clock to 23:30:00, enter: =>TIM 23:30:00 <ENTER> 23:30:00 => TRI Command (Trigger Event Report) Issue the TRI command to generate an event report: =>TRI <ENTER> Triggered => SEL-300G Instruction Manual Date Code 20000616...
Page 516: Access Level B Commands
The GRO n command changes the active setting group to setting Group n. To change to settings Group 2, enter the following: ==>GRO 2 <ENTER> Change to Group 2 Are you sure (Y/N) ? Y <ENTER> Active Group = 2 ==> Date Code 20000616 SEL-300G Instruction Manual...
Page 517: Ope N Command (Open Breaker)
The OPE n command is supervised by the main board Breaker jumper (see Table 5.6). If the Breaker jumper is not in place (Breaker jumper = OFF), the relay does not execute the OPE command and responds: Aborted: No Breaker Jumper SEL-300G Instruction Manual Date Code 20000616...
Page 518 GENERATOR Date: 01/17/98 Time: 10:04:11.330 TERMINAL Int Trips= 0.0 IB= 0.0 IC= 0.0 kA Ext Trips= 0.0 IB= 0.0 IC= 0.0 kA Percent wear: A= 10 B= 12 C= LAST RESET 01/17/98 09:45:35 ==> Date Code 20000616 SEL-300G Instruction Manual...
Page 519: Con Command (Control Remote Bit)
CONTROL RB5: PRB 5 <ENTER> =>> You must enter the same remote bit number in both steps in the command. If the bit numbers do not match, the relay responds “Invalid Command.” Table 10.8: SEL-300G Relay Control Subcommands Subcommand Description SRB n Set Remote Bit n (“ON”...
Page 520: His C Command (Clear Event Summaries/History)
To change the password for Access Level 1 to Ot3579, enter the following: =>>PAS 1 Ot3579 <ENTER> =>> Similarly, PAS B and PAS 2 can be used to change the Level B and Level 2 passwords, respectively. Date Code 20000616 SEL-300G Instruction Manual...
Page 521: Set Command (Change Settings)
If you select “Y”, the relay displays: Rebooting the relay The relay then restarts (just like powering down, then powering up relay), and all diagnostics are rerun before the relay is enabled. SEL-300G Instruction Manual Date Code 20000616...
Page 522: Syn R (Models 0300G2, 0300G3)
The relay will generate error messages in response to serial port commands or arguments that it does not recognize. The following table lists the error messages and their causes and suggests corrections. Table 10.9: SEL-300G Error Messages Error Message Command...
Page 523 Synch-check Relay is not equipped with option not ordered synch-check elements and so in this relay does not create this type of event report. SEL-300G Instruction Manual Date Code 20000616...
Page 525 Conditions When CLOSE Asserted ..................11-21 SYN Report Closure......................11-21 Use the Breaker Close Time Average ................11-22 Reset the Breaker Close Time Average ................11-22 Example Standard 15-Cycle Event Report................11-22 Example Sequential Events Recorder (SER) Report ..............11-30 Differential Event Report Headers....................11-31 SEL-300G Instruction Manual Date Code 20020206...
Page 526 Sampled Current Waveform..................11-28 Figure 11.4: Derivation of Phasor RMS Current Values From Event Report Current Values.....11-29 Figure 11.5: Example Sequential Events Recorder (SER) Event Report ..........11-30 Figure 11.6: Example Differential Event Report 1/4-Cycle Resolution ..........11-32 Date Code 20020206 SEL-300G Instruction Manual...
Page 527: Section 11: Event Reports And Ser Functions
See Figure 11.2 for an example event report (Note: Figure 11.2 is on multiple pages). Event Report Length (Settings LER and PRE) The SEL-300G Relay provides user-programmable event report length and prefault length. Event report length is either 15 or 30 cycles. Prefault length ranges from 1 to LER-1 cycles.
Page 528: Standard Event Report Triggering
When setting ER sees a logical 0 to logical 1 transition, it generates an event report (if the SEL-300G Relay is not already generating a report that encompasses the new transition). The factory setting is:...
Page 529: Tri (Trigger Event Report) And Pul (Pulse Output Contact) Commands
The relay sends event summaries to all serial ports with setting AUTO = Y each time an event triggers. The latest twenty-nine 15-cycle or fifteen 30-cycle event summaries are stored in nonvolatile memory and are accessed by the HIS (Event Summaries/History) command. SEL-300G Instruction Manual Date Code 20020206...
Page 530: Retrieving Full-Length Standard Event Reports
Group and global settings Use the EVE command to retrieve the reports. There are several options to customize the report format. The general command format is: [n DIF Sx Ly[-[w]] R A D C] Date Code 20020206 SEL-300G Instruction Manual...
Page 531 1/4-cycle resolution. EVE 2 A R S4 Display the unfiltered analog section of the second event report at 1/4-cycle resolution. If an event report is requested that does not exist, the relay responds: “Invalid Event” SEL-300G Instruction Manual Date Code 20020206...
Page 532: Compressed Ascii Event Reports
Filtered and Unfiltered Event Reports The SEL-300G Relay samples the basic power system measurands (ac voltage, ac current, station battery, and optoisolated inputs) 16 times per power system cycle. The relay filters the measurands to remove transient signals. The relay operates on the filtered values and reports them in the event report.
Page 533: Current, Voltage, And Frequency Columns
OGIC Equations for more information on Relay Word bits shown in Table 11.3. Note: The event report does not show the output contacts or optoisolated inputs for the extra I/O board on model 0300G_1. SEL-300G Instruction Manual Date Code 20020206...
Page 534 24C2 element picked up and timing. 24C2 element timed out. 24C2 element fully reset. 24D1 24D1, 24D1T 24D1 element picked up. 24D1 element picked up; timer timed out on pickup time; timer output 24D1T asserted. Date Code 20020206 SEL-300G Instruction Manual...
Page 535 Both Level 1 and Level 2 phase-to-phase undervoltage elements picked up. 27VS 27VS Synch-check (VS) input undervoltage element picked up. 32P1 32P1, 32P1T Level 1 reverse/low-forward power instantaneous element picked up. 32P1 picked up, 32P1T timed out. SEL-300G Instruction Manual Date Code 20020206...
Page 536 Both Level 1 and Level 2 elements picked up. 50H1 50H1 Level 1 instantaneous 87-input phase overcurrent element picked up. Level 1 87-input phase overcurrent element picked up and time delay expired. Date Code 20020206 SEL-300G Instruction Manual...
Page 537 Neutral time-overcurrent element timed out. Time-overcurrent element reset. 51C, 51CT, 51CR Voltage controlled phase time- overcurrent element picked up and timing. Voltage controlled phase time- overcurrent element timed out. Time-overcurrent element reset. SEL-300G Instruction Manual Date Code 20020206...
Page 538 64G1 picked up. 64G1 definite-time delay timed out. 64G2 64G2, 64G2T 64G2 picked up. 64G2 definite-time delay timed out. SWING The Relay Word bit SWING picked up. The Relay Word bit OOS picked up. Date Code 20020206 SEL-300G Instruction Manual...
Page 539 Lcl 56 LB5, LB6 Local bit LB5 asserted. Local bit LB6 asserted. Both LB5 and LB6 asserted. Lcl 78 LB7, LB8 Local bit LB7 asserted. Local bit LB8 asserted. Both LB7 and LB8 asserted. SEL-300G Instruction Manual Date Code 20020206...
Page 540 Both NDEM and GDEM picked up. TR12 TR1, TR2 Trip bit TRIP1 asserted. Trip bit TRIP2 asserted. Both TRIP1 and TRIP2 asserted. TR34 TR3, TR4 Trip bit TRIP3 asserted. Trip bit TRIP4 asserted. Both TRIP3 and TRIP4 asserted. Date Code 20020206 SEL-300G Instruction Manual...
Page 541: Differential Event Report Column Definitions (Models 0300G1 And 0300G3)
Refer to Figure 11.6 to view event report columns. This example event report displays rows of information each 1/4 cycle and was retrieved with the EVE DIF command. The columns contain ac current, differential element, output, input, and operate, restraint, and second-harmonic current magnitude information. SEL-300G Instruction Manual Date Code 20020206...
Page 542: Current Columns
Out 56 OUT105, OUT106 Output contact OUT105 asserted. Output contact OUT106 asserted. Both OUT105 and OUT106 asserted. Out 7A OUT107, ALARM Output contact OUT107 asserted. Output contact ALARM asserted. Both OUT107 and ALARM asserted. Date Code 20020206 SEL-300G Instruction Manual...
Page 543: Differential Current Magnitudes And Control Elements
Columns for the individual unrestrained elements (87U1, 87U2, 87U3), restrained elements (87R1, 87R2, 87R3), second-harmonic blocking condition and 87B SEL Control Equation OGIC result are also shown, with an * appearing in the column if the element is asserted. SEL-300G Instruction Manual Date Code 20020206...
Page 544: Sequential Events Recorder (Ser) Report
The relay saves the latest 512 rows of the SER in nonvolatile memory. Row 1 is the most recently triggered row and Row 512 is the oldest. View the SER report by date or SER row number as outlined in the examples below. Date Code 20020206 SEL-300G Instruction Manual...
Page 545 DATE_F. If setting DATE_F = MDY, then the dates are entered as in the above examples (Month/Day/Year). If setting DATE_F = YMD, then the dates are entered Year/Month/Day. If the requested SER event report rows do not exist, the relay responds: No SER Data SEL-300G Instruction Manual Date Code 20020206...
Page 546: Clearing Ser Report
EPORT ODELS SEL-300G Relays equipped with synchronism checking generate a report each time the relay initiates a synch-check supervised generator breaker close. The report contains information about the system and generator at the time the close was performed. The relay stores the three latest reports in nonvolatile relay memory.
Page 547: Conditions When Close Asserted
If 3PO does not deassert and the uncompensated phase angle difference does not exceed the CFANGL setting within about 99 seconds of CLOSE initiation, the relay reports the message ‘Close Failed’ in the place of the breaker close time and stores the SYN report. SEL-300G Instruction Manual Date Code 20020206...
Page 548: Use The Breaker Close Time Average
If the “trigger” row (>) and the maximum phase current row (*) are the same row, the * symbol takes precedence. Date Code 20020206 SEL-300G Instruction Manual...
Page 549 ...r ..r ..rrr ....V ..3....r ..r ..rrr ....v ..3....r ..r ..rrr ....v ..3....r ..r ..rrr ....v ..3....(continued on next page) SEL-300G Instruction Manual Date Code 20020206...
Page 550 =!3PO 24D1P = 105 24D1D = 1.00 24CCS = ID 24IP = 105 24IC = 2.0 24ITD = 0.1 24D2P2 = 176 24D2D2 = 3.00 24CR = 240.00 24TC =!60LOP (continued on next page) Date Code 20020206 SEL-300G Instruction Manual...
Page 551 =51NT + 50N1T + 51CT + 51VT + 64G1T + 64G2T + INADT + LT1 * 32P2T SV3PU = 0.00 SV3DO = 0.00 =24C2T + 32P1T + 40Z1T + 40Z2T SV4PU = 0.00 SV4DO = 0.00 (continued on next page) SEL-300G Instruction Manual Date Code 20020206...
Page 552 OUT210 =0 OUT211 =0 OUT212 =0 Global Settings: = 15 FP_TO = 15 DATE_F = MDY DCLOP = OFF DCHIP = OFF FNOM = 60 PHROT = ABC DELTA_Y = Y (continued on next page) Date Code 20020206 SEL-300G Instruction Manual...
Page 553 DP12_1 = DP12_0 = DP13 DP13_1 = DP13_0 = DP14 DP14_1 = DP14_0 = DP15 DP15_1 = DP15_0 = DP16 DP16_1 = DP16_0 = => => Figure 11.2: Example Standard 15-Cycle Event Report 1/4-Cycle Resolution SEL-300G Instruction Manual Date Code 20020206...
Page 554 Figure 11.3: Derivation of Event Report Current Values and RMS Current Values From Sampled Current Waveform In Figure 11.3, note that any two rows of current data from the event report in Figure 11.2, 1/4 cycle apart, can be used to calculate RMS current values. Date Code 20020206 SEL-300G Instruction Manual...
Page 555 RMS current value is: IA = 1472 A ∠-38.0° The present sample (IA = 1160 A) is a real RMS current value that relates to the phasor RMS current value: 1472 A * cos(-38.0°) = 1160 A SEL-300G Instruction Manual Date Code 20020206...
Page 556 50N1, pick up and start timing at fault inception. 50N1D definite time-delay expires and 50N1T Relay Word bit asserts. Related settings: 50N1D = 0.10 seconds Time difference: 09:09:58.714 – 09:09:58.611 = 0.103 seconds Date Code 20020206 SEL-300G Instruction Manual...
Page 557: Differential Event Report Headers
Like standard format event reports, in differential event reports the arrow (>) in the column following the IC87 column identifies the “trigger” row. This is the row that corresponds to the Date and Time values at the top of the event report. SEL-300G Instruction Manual Date Code 20020206...
Page 558 0.95 0.94 0.00 0.00 0.00 ..Event: TRIG Frequency: 60.00 Targets: Currents (A Pri), ABCNGQ: 1885 1888 1884 Group 1 Settings: =GENERATOR =TERMINAL Figure 11.6: Example Differential Event Report 1/4-Cycle Resolution Date Code 20020206 SEL-300G Instruction Manual...
Page 559 Relay Does Not Respond to Commands From Device Connected to Serial Port ..12-4 Relay Does Not Respond to Faults................12-4 Relay Calibration ........................12-4 Firmware (FLASH) Upgrade Instructions ..................12-4 Required Equipment......................12-4 Upgrade Instructions ......................12-5 Factory Assistance ........................12-8 SEL-300G Instruction Manual Date Code 20010615...
Page 561: Section 12: Maintain And Troubleshoot Relay
2. Using the Access Level B PULSE command or the front-panel CNTRL function, close the relay output contacts individually (see Section 9: Front-Panel Operation and Section 10: Serial Port Communications and Commands for more detailed information regarding use of the contact control functions). SEL-300G Instruction Manual Date Code 20000616...
Page 562: Relay Misoperation
R command to record the active SER settings. Close the text file. Section 10: Serial Port Communications and Commands contains information on establishing serial communications with the relay and more details on the commands above. Date Code 20000616 SEL-300G Instruction Manual...
Page 563: Relay Troubleshooting
Press any front-panel button. The relay should turn on the LCD back lighting. c) Locate the contrast adjust potentiometer adjacent to the serial port connector. d) Use a small screwdriver to adjust the potentiometer. e) Replace the relay front panel. SEL-300G Instruction Manual Date Code 20000616...
Page 564: Relay Does Not Respond To Commands From Device Connected To Serial Port
4. Analog input cable between transformer secondary and main board loose or defective. 5. Failed relay self-test. ELAY ALIBRATION The SEL-300G Relay is factory-calibrated. If you suspect that the relay is out of calibration, please contact the factory. (FLASH) U IRMWARE...
Page 565: Upgrade Instructions
10. The relay then prompts you to press a key and begin the transfer. Press a key (e.g., <ENTER>). 11. Start the file transfer by selecting the send file option in your communication software. Use the XMODEM protocol and send the file that contains the new firmware (e.g., 300GR101.S19). SEL-300G Instruction Manual Date Code 20000616...
Page 566 Press <ENTER> to see if level 0 prompt “=” appears on your terminal screen. If it does, enter Access Level 2 by issuing the ACC and 2AC commands. b. Issue Initialize (INI) command to reinitialize the I/O board(s). Date Code 20010615 SEL-300G Instruction Manual...
Page 567 14. Apply current and voltage signals to the relay. Issue the METER command; verify the current and voltage signals are correct. Issue the TRIGGER and EVENT commands. Verify the current and voltage signals are correct in the EVENT report. SEL-300G Instruction Manual Date Code 20010615...
Page 568: Factory Assistance
12-8 Maintain and Troubleshoot Relay 15. If an SEL-2020 or SEL-2030 Communications Processor is connected to the SEL-300G Relay, re-auto-configure the SEL-20x0 port. This step will prevent a future auto- configuration failure of the SEL-20x0 when its power is cycled and if the new SEL-300G Relay firmware does not match the original configuration.
Page 569: Element Description
Percentage Restraint Slope 2 Settings, SLP2, IRS1 ..........13-15 Second-Harmonic Blocking Settings, PCT2, IHBL ..........13-15 Differential Element Tripping...................13-15 Differential Element Transformer Connection and Ratio Compensation.........13-16 Restrained Differential Element Operating Characteristics............13-17 TABLES Table 13.1: Connection and TAP Compensation..................13-16 SEL-300G Instruction Manual Date Code 20020206...
Page 570 Figure 13.6: Restrained Differential Element Logic When E87 = T and IHBL = N......13-7 Figure 13.7: Restrained Differential Element Logic When E87 = T and IHBL = Y......13-7 Figure 13.8: Differential Element Operating Characteristics ...............13-17 Date Code 20020206 SEL-300G Instruction Manual...
Page 571: Section 13: Differential Element Settings
Figures 5.16 or 5.17. Do not attempt to use this element with high-impedance grounded generators, as the primary residual current they supply during a ground fault is too low for secure, dependable protection. SEL-300G Instruction Manual Date Code 20020206...
Page 572: Setting Descriptions
Time-delayed Level 1 Ground Differential Indication, Testing, Tripping Element Pickup 87N2P Instantaneous Level 2 Ground Differential Indication, Testing, SER, Element Pickup Event Triggering 87N2T Time-delayed Level 2 Ground Differential Indication, Testing, Tripping Element Pickup Date Code 20020206 SEL-300G Instruction Manual...
Page 573: Setting Calculation
OGIC Setting 87NTC Relay Word Relay Bits AC Inputs 87N1P 87N1D I87N = |Id - In| Id = IG×CTR/CTRN 87N1T 87N2P Settings 87N1P 87N2D 87N2T 87N2P DWG: M300G227 Figure 13.1: 87N Element Logic Diagram SEL-300G Instruction Manual Date Code 20020206...
Page 574 (I1F2, I2F2, and I3F2). Fundamental Frequency Digital Cosine Filter IA87 IA871 IB87 IB871 IC87 IC871 Second-Harmonic Digital Cosine Filter IA872 IB872 IC872 DWG: M300G198 Figure 13.2: Fundamental and Second-Harmonic Filters Provide Current Inputs to Differential Elements Date Code 20020206 SEL-300G Instruction Manual...
Page 575 These values are a direct report of the differential element mismatch and are very useful when commissioning the relay. More details on these commands are contained in Section 9: Front-Panel Operation, Section 10: Serial Port Communications and Commands, and Section 11: Event Reports and SER Functions. SEL-300G Instruction Manual Date Code 20020206...
Page 576: Relay Word Bits
(87BL2, 87BL3 similar) Setting PCT2 ¹OFF DWG: M300G167 Figure 13.4: Differential Element Logic Diagram Relay Word Relay Bits Word 87R1 87R2 87R3 Setting DWG: M300G168 Figure 13.5: Restrained Differential Element Logic When E87 = G Date Code 20020206 SEL-300G Instruction Manual...
Page 577 Restrained Differential Element Pickup Tripping 87U1 Element 1 Unrestrained Element Pickup Indication, Testing Element 2 Unrestrained Element Pickup Indication, Testing 87U2 87U3 Element 3 Unrestrained Element Pickup Indication, Testing 87R1 Element 1 Restrained Element Pickup Indication, Testing SEL-300G Instruction Manual Date Code 20020206...
Page 578: Settings For Generator Protection
ROTECTION Setting Description For generator current differential applications similar to those shown in Figure 5.13, the SEL-300G Relay offers simple generator differential protection, whose settings are described below: Enable Differential Protection (G, T, N) Set E87 = G to enable differential protection elements in most generator differential applications.
Page 579: Setting Calculation
It should be set high enough to not respond to false difference current caused by differences in CT performance for heavy through-faults. Setting U87P = 10 generally provides satisfactory performance. SEL-300G Instruction Manual Date Code 20020206...
Page 580: Restrained Differential Element Pickup Setting, O87P
INOM setting. TAPD is set equal to the same current, placed in terms of secondary A at the differential input CTs: TAPD = INOM • CTR/CTRD. Date Code 20020206 SEL-300G Instruction Manual...
Page 581: Differential Element Tripping
ETTINGS ROTECTION Setting Description For unit current differential applications similar to those shown in Figure 5.15, the SEL-300G Relay offers differential protection that can compensate correctly for the ratio and phase shift of the generator step-up transformer. Enable Differential Protection (G, T, N) Set E87 = T to enable differential protection elements when the generator step-up transformer is included in the differential zone.
Page 582 The PCT2 setting defines a second-harmonic blocking percentage. In the majority of unit protection applications, setting PCT2 to OFF or 12% will provide satisfactory performance. When PCT2 = OFF, the IHBL setting is hidden and does not require a value. Date Code 20020206 SEL-300G Instruction Manual...
Page 583: Setting Calculation
• VWDGD • CTRD where: VNOM, INOM, PTR, CTR, VWDGD, CTRD = relay settings C2 = 1.732 if CTCON = DAB or DAC C2 = 1.0 for all other combinations of TRCON and CTCON SEL-300G Instruction Manual Date Code 20020206...
Page 584: Unrestrained Differential Element Pickup Setting, U87P
2. Use an auxiliary current transformer in secondary circuits of the 87 input current transformers to modify the current transformer ratio apparent to the SEL-300G Relay. 3. Set VWDGD = OFF then manually set TAP1 and TAPD to values that are close – but not equal –...
Page 585: Percentage Restraint Slope 2 Settings, Slp2, Irs1
The 87U and 87R differential elements detect faults and usually are used to trip the main generator breaker, the field breaker, the prime, and the generator lockout relay. Refer to Section ® 4: SEL Control Equations for more detail and examples of tripping SEL Control OGIC OGIC Equations. SEL-300G Instruction Manual Date Code 20020206...
Page 586 IA871 IB871 I1W1F1 I187F1 • 3 TAP1 • 3 TAPD − − IB871 IC871 I2W1F1 I287F1 • 3 TAP1 • 3 TAPD − − IC871 IA871 I3W1F1 I387F1 • 3 TAP1 • 3 TAPD Date Code 20020206 SEL-300G Instruction Manual...
Page 587 TAP and connection compensation for the second-harmonic currents is similar. ESTRAINED IFFERENTIAL LEMENT PERATING HARACTERISTICS (Multiples of TAP) 87U Operate Region U87P SLP2 Operate Region Restraint Region SLP1 O87P IRS1 (Multiples of TAP) DWG: M300G171 Figure 13.8: Differential Element Operating Characteristics SEL-300G Instruction Manual Date Code 20020206...
Page 589 APPENDIX E: COMPRESSED ASCII COMMANDS......E-1 Introduction ..........................E-1 CASCII Command – General Format ..................E-1 CASCII Command – SEL-300G ....................E-2 CSTATUS Command – SEL-300G ..................... E-7 CHISTORY Command – SEL-300G ................... E-9 CEVENT Command – SEL-300G ....................E-9...
Page 590 Figure B.7: Delta-Delta Power Transformer With Wye High-Side Connections........B-4 Figure B.8: Wye-Delta Power Transformer With Wye High-Side Connections........B-4 Figure B.9: Wye-Delta Power Transformer With Wye High-Side Connections........B-5 Figure B.10: Wye-Wye Power Transformer With Wye High-Side CT Connections .......B-5 Date Code 20020206 SEL-300G Instruction Manual...
Page 591 04h Read Holding Register Command ................F-9 Table F.10: 05h Force Single Coil Command..................F-10 Table F.11: SEL-300G Relay Command Coils (FC05h) ..............F-11 Table F.12: 06h Preset Single Register Command................F-12 Table F.13: 07h Read Exception Status Command................F-13 Table F.14: 08h Loopback Diagnostic Command.................
Page 593: Appendix A: Firmware Versions
The firmware revision number is after the “R” and the release date is after the “D”. The string of x’s after “SEL-300G” is the firmware part number and depends on the features ordered with the relay (see SEL-300G Relay Ordering in Section 1).
Page 594 Model SEL-0300G3Y Fourth Revision. Model SEL-0300G2W Fourth Revision. Model SEL-0300G2Y Fourth Revision. Model SEL-0300G1W Fourth Revision. Model SEL-0300G1Y Fourth Revision. Model SEL-0300G0W Fourth Revision. Model SEL-0300G0Y Fourth Revision. —Corrected setting interdependency checks of Local Bit Settings. Date Code 20020206 SEL-300G Instruction Manual...
Page 595 Model SEL-0300G0Y Third Revision. —Increased CTR and CTRD setting range to 1-30000 for 1 A version relays. —Corrected 87N element to prevent potential unreliable operations. —Corrected ability to set RTD, 32, and 25 elements from front panel. SEL-300G Instruction Manual Date Code 20020206...
Page 596 —Added compatibility with SEL-2600 —Added thermal elements —Add thermal metering —Allow TRGTR to be in SER —Improve frequency metering display —Improve current meter display accuracy at low levels —Increase 25RCF setting to range 0.5-2.000 Date Code 20020206 SEL-300G Instruction Manual...
Page 597 —Modified FID String Format. SEL-300G-R203-D000218 Model SEL-0300G30 Fourth Revision. Model SEL-0300G31 Fourth Revision. Model SEL-0300G20 Fourth Revision. Model SEL-0300G21 Fourth Revision. —Corrected potential misoperation of synchronization check element at slip frequencies close to zero. SEL-300G Instruction Manual Date Code 20020206...
Page 598 —Corrected scaling error in directional power and phase distance elements - 1 A Models only. —Corrected positive-sequence impedance calculation for phase distance load encroachment function. —Corrected front-panel serial port setting baud rate range typographical error. Date Code 20020206 SEL-300G Instruction Manual...
Page 599 SEL-300G-R102-D980429 Model SEL-0300G10 First Revision. Model SEL-0300G11 First Revision. Model SEL-0300G00 Second Revision. Model SEL-0300G01 Second Revision. —Corrected problem with 40 Loss-of-Field element. —Corrected V1 and V2 Metering calculations for ACB rotation. SEL-300G Instruction Manual Date Code 20020206...
Page 600 To find the firmware revision number in your relay, view the status report using the serial port STATUS command or the front-panel STATUS pushbutton. The status report displays the FID label with the Part/Revision number in bold, for example: FID=SEL-300G-R200-V00H425XX4X-D981130 Date Code 20020206 SEL-300G Instruction Manual...
Page 601: Appendix B: Differential Connection Diagrams
DWG: M300G193 (Partial) Figure B.1: Protected Generator With No Step-Up Transformer Generator Winding 1 Winding 2 IA87 IB87 IC87 TRCON=DACY CTCON=Y SEL-300G (Partial) DWG: M300G191 Figure B.2: Delta-Wye Power Transformer With Wye High-Side CT Connections SEL-300G Instruction Manual Date Code 20000616...
Page 602 Figure B.3: Delta-Wye Power Transformer With Wye High-Side CT Connections Generator Winding 1 Winding 2 IA87 IB87 IC87 TRCON=DACY CTCON=DAC DWG: M300G188 SEL-300G (Partial) Figure B.4: Delta-Wye Power Transformer With Delta High-Side CT Connections Date Code 20000616 SEL-300G Instruction Manual...
Page 603 Figure B.5: Delta-Wye Power Transformer With Delta High-Side CT Connections Generator Winding 1 Winding 2 IA87 IB87 IC87 TRCON=DACDAC CTCON=Y SEL-300G (Partial) DWG: M300G187 Figure B.6: Delta-Delta Power Transformer With Wye High-Side CT Connections SEL-300G Instruction Manual Date Code 20000616...
Page 604 DWG: M300G192 Figure B.7: Delta-Delta Power Transformer With Wye High-Side Connections Generator Winding 1 Winding 2 IA87 IB87 IC87 TRCON=YDAC CTCON=Y SEL-300G DWG: M300G194 (Partial) Figure B.8: Wye-Delta Power Transformer With Wye High-Side Connections Date Code 20000616 SEL-300G Instruction Manual...
Page 605 (Partial) Figure B.9: Wye-Delta Power Transformer With Wye High-Side Connections Generator Winding 1 Winding 2 IA87 IB87 IC87 TRCON=YY CTCON=Y SEL-300G (Partial) DWG: M300G189 Figure B.10: Wye-Wye Power Transformer With Wye High-Side CT Connections SEL-300G Instruction Manual Date Code 20000616...
Page 607: Appendix C: Sel Distributed Port Switch Protocol
6. Enter the sequence CTRL-X QUIT <CR> before entering the prefix character if all relays in the multidrop network do not have the same prefix setting. Note: You can use the front-panel SET pushbutton to change the port settings to return to SEL protocol. SEL-300G Instruction Manual Date Code 20000616...
Page 609: Appendix D: Configuration, Fast Meter, And Fast
ASCII Configuration Message List Request to Relay (ASCII) Response From Relay ASCII Firmware ID String and Terminal ID Setting (TID) ASCII Names of Relay Word bits ASCII Names of bits in the A5B9 Status Byte SEL-300G Instruction Manual Date Code 20000616...
Page 610: Message Definitions
One status flag byte Scale factors in Fast Meter message No scale factors # of analog input channels # of samples per channel # of digital banks # of calculation blocks 0004 Analog channel offset Date Code 20020206 SEL-300G Instruction Manual...
Page 611 Analog channel name (VBC) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 564341000000 Analog channel name (VCA) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-300G Instruction Manual Date Code 20001212...
Page 612 # of calculation blocks 0004 Analog channel offset 006C Time stamp offset 0074 Digital offset 494100000000 Analog channel name (IA) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message Date Code 20001212 SEL-300G Instruction Manual...
Page 613 Analog channel name (VN) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 494138370000 Analog channel name (IA87) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-300G Instruction Manual Date Code 20001212...
Page 614 Scale factors in Fast Meter message No scale factors # of analog input channels # of samples per channel # of digital banks # of calculation blocks 0004 Analog channel offset 005C Time stamp offset 0064 Digital offset Date Code 20001212 SEL-300G Instruction Manual...
Page 615 Analog channel name (VCA) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 565300000000 Analog channel name (VS) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-300G Instruction Manual Date Code 20001212...
Page 616 # of calculation blocks 0004 Analog channel offset 0074 Time stamp offset 007C Digital offset 494100000000 Analog channel name (IA) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message Date Code 20001212 SEL-300G Instruction Manual...
Page 617 Analog channel name (VS) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 564E00000000 Analog channel name (VN) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-300G Instruction Manual Date Code 20001212...
Page 618 FFFF No Rs compensation FFFF No Xs compensation IA channel index IB channel index IC channel index VA channel index VB channel index VC channel index Reserved checksum 1-byte checksum of all preceding bytes Date Code 20001212 SEL-300G Instruction Manual...
Page 619: A5D1 Fast Meter Data Block
X and Y components of: IA, IB, IC, IN, VA, VB, VC,VS, VN, Freq, and Vdc in 4-byte IEEE FPS 8-bytes Time stamp 54-bytes 54 Digital banks: TAR0 - TAR53 1-byte Reserved checksum 1-byte checksum of all preceding bytes SEL-300G Instruction Manual Date Code 20001212...
Page 620: A5C2/A5C3 Demand/Peak Demand Fast Meter Configuration Messages
Analog channel name (IN) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 494700000000 Analog channel name (IG) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message Date Code 20001212 SEL-300G Instruction Manual...
Page 621 Analog channel name (PB-) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message 50432D000000 Analog channel name (PC-) Analog channel type Scale factor type 0000 Scale factor offset in Fast Meter message SEL-300G Instruction Manual Date Code 20001212...
Page 622: A5D2/A5D3 Demand/Peak Demand Fast Meter Message
MVA I, MVB I, MVC I, MV3PI, MWA O, MWB O, MWC O, MW3PO, MVA O, MVB O, MVC O, MV3PO in 8-byte IEEE FPS 8-bytes Time stamp 1-byte Reserved 1-byte 1-byte checksum of all preceding bytes Date Code 20001212 SEL-300G Instruction Manual...
Page 623: A5B9 Fast Meter Status Acknowledge Message
In response to the A5B9 request, the relay clears the Fast Meter (message A5D1) Status Byte. The SEL-300G Status Byte contains one active bit, STSET (bit 4). The bit is set on power up and on settings changes. If the STSET bit is set, the external device should request the A5C1, A5C2, and A5C3 messages.
Page 624: A5E0 Fast Operate Remote Bit Control
It is common practice to route remote bits to output contacts to provide remote control of the relay outputs. If you wish to pulse an output contact closed for a specific duration, SEL ® recommends using the remote bit pulse command and SEL Control Equations to provide OGIC Date Code 20001212 SEL-300G Instruction Manual...
Page 625: A5E3 Fast Operate Breaker Control
The relay performs the specified breaker operation if the following conditions are true: 1. Conditions 1 - 5 defined in the A5E0 message are true. 2. The breaker jumper (JMP6B) is in place on the SEL-300G Relay main board. ID Message In response to the ID command, the relay sends the firmware ID, relay TID setting, and the ®...
Page 626: Dna Message
"50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" "TR1","TR2","TR3","TR4","ULTR1","ULTR2","ULTR3","ULTR4","0CC8" "LB1","LB2","LB3","LB4","LB5","LB6","LB7","LB8","0994" "LB9","LB10","LB11","LB12","LB13","LB14","LB15","LB16","0AE5" "RB1","RB2","RB3","RB4","RB5","RB6","RB7","RB8","09C4" "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" "DP8","DP7","DP6","DP5","DP4","DP3","DP2","DP1","09C4" "DP16","DP15","DP14","DP13","DP12","DP11","DP10","DP9","0B15" "ER","OOST","IN106","IN105","IN104","IN103","IN102","IN101","0C61" "ALARM","OUT107","OUT106","OUT105","OUT104","OUT103","OUT102","OUT101", "0FC8" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "59PP2","27PP2","*","*","*","*","*","*","06F7" "87NTC","87N1P","87N1T","87N2P","87N2T","*","*","*","0A54" "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" Date Code 20001212 SEL-300G Instruction Manual...
Page 627 Model SEL-0300G01 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" "50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" "TR1","TR2","TR3","TR4","ULTR1","ULTR2","ULTR3","ULTR4","0CC8" "LB1","LB2","LB3","LB4","LB5","LB6","LB7","LB8","0994" "LB9","LB10","LB11","LB12","LB13","LB14","LB15","LB16","0AE5" "RB1","RB2","RB3","RB4","RB5","RB6","RB7","RB8","09C4" "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" SEL-300G Instruction Manual Date Code 20001212...
Page 628 "*","*","*","*","*","*","*","*","04D0" "SET1","SET2","SET3","SET4","SET5","SET6","SET7","SET8","0C84" "SET9","SET10","SET11","SET12","SET13","SET14","SET15","SET16","0DD5" "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> Model SEL-0300G10 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" "50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" Date Code 20001212 SEL-300G Instruction Manual...
Page 629 "*","*","*","*","*","*","*","*","04D0" "59PP2","27PP2","*","*","*","*","*","*","06F7" "*","*","*","*","*","*","*","*","04D0" "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "50H2A","50H2B","50H2C","*","*","*","*","*","07B5" "*","*","*","*","*","*","*","*","04D0" "SET1","SET2","SET3","SET4","SET5","SET6","SET7","SET8","0C84" "SET9","SET10","SET11","SET12","SET13","SET14","SET15","SET16","0DD5" "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> Model SEL-0300G11 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" SEL-300G Instruction Manual Date Code 20001212...
Page 630 "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" "DP8","DP7","DP6","DP5","DP4","DP3","DP2","DP1","09C4" "DP16","DP15","DP14","DP13","DP12","DP11","DP10","DP9","0B15" "ER","OOST","IN106","IN105","IN104","IN103","IN102","IN101","0C61" "ALARM","OUT107","OUT106","OUT105","OUT104","OUT103","OUT102","OUT101", "0FC8" "87B","87BL1","87BL2","87BL3","87R","87R1","87R2","87R3","0B58" "87U","87U1","87U2","87U3","50H1","50H1T","50H2","50H2T","0B48" "50Q1","50Q1T","50Q2","50Q2T","50R1","50R1T","50R2","50R2T","0C10" "*","*","*","*","*","*","*","*","04D0" "59PP2","27PP2","*","*","*","*","*","*","06F7" "*","*","*","*","*","*","*","*","04D0" "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "IN208","IN207","IN206","IN205","IN204","IN203","IN202","IN201","0CEC" "*","*","*","*","*","*","*","*","04D0" "OUT201","OUT202","OUT203","OUT204","OUT205","OUT206","OUT207","OUT208", "0FF4" "OUT209","OUT210","OUT211","OUT212","*","*","*","*","0A5F" "50H2A","50H2B","50H2C","*","*","*","*","*","07B5" "*","*","*","*","*","*","*","*","04D0" "SET1","SET2","SET3","SET4","SET5","SET6","SET7","SET8","0C84" "SET9","SET10","SET11","SET12","SET13","SET14","SET15","SET16","0DD5" "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> Date Code 20001212 SEL-300G Instruction Manual...
Page 631 "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" "TR1","TR2","TR3","TR4","ULTR1","ULTR2","ULTR3","ULTR4","0CC8" "LB1","LB2","LB3","LB4","LB5","LB6","LB7","LB8","0994" "LB9","LB10","LB11","LB12","LB13","LB14","LB15","LB16","0AE5" "RB1","RB2","RB3","RB4","RB5","RB6","RB7","RB8","09C4" "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" "DP8","DP7","DP6","DP5","DP4","DP3","DP2","DP1","09C4" "DP16","DP15","DP14","DP13","DP12","DP11","DP10","DP9","0B15" "ER","OOST","IN106","IN105","IN104","IN103","IN102","IN101","0C61" "ALARM","OUT107","OUT106","OUT105","OUT104","OUT103","OUT102","OUT101", "0FC8" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "59VP","59VS","CFA","BKRCF","BSYNCH","25C","25A1","25A2","0C01" "59PP2","27PP2","SF","VDIF","GENVHI","GENVLO","GENFHI","GENFLO","0EB5" "87NTC","87N1P","87N1T","87N2P","87N2T","*","*","27VS","0B3C" "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" SEL-300G Instruction Manual Date Code 20001212...
Page 632 Model SEL-0300G21 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" "50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" "TR1","TR2","TR3","TR4","ULTR1","ULTR2","ULTR3","ULTR4","0CC8" "LB1","LB2","LB3","LB4","LB5","LB6","LB7","LB8","0994" "LB9","LB10","LB11","LB12","LB13","LB14","LB15","LB16","0AE5" "RB1","RB2","RB3","RB4","RB5","RB6","RB7","RB8","09C4" "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" "DP8","DP7","DP6","DP5","DP4","DP3","DP2","DP1","09C4" "DP16","DP15","DP14","DP13","DP12","DP11","DP10","DP9","0B15" "ER","OOST","IN106","IN105","IN104","IN103","IN102","IN101","0C61" Date Code 20001212 SEL-300G Instruction Manual...
Page 633 "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> Model SEL-0300G30 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" "50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" "BKMON","BCW","BCWA","BCWB","BCWC","FAULT","DCLO","DCHI","0CE3" "81D1","81D2","81D3","81D4","81D5","81D6","3PO","52A","0A3D" "81D1T","81D2T","81D3T","81D4T","81D5T","81D6T","27B81","50L","0C80" "ONLINE","BND1A","BND1T","BND2A","BND2T","BND3A","BND3T","BNDA","0E3D" "TRGTR","BND4A","BND4T","BND5A","BND5T","BND6A","BND6T","BNDT","0E30" "TRIP","TRIP1","TRIP2","TRIP3","TRIP4","OC1","OC2","OC3","0CD1" "TR1","TR2","TR3","TR4","ULTR1","ULTR2","ULTR3","ULTR4","0CC8" "LB1","LB2","LB3","LB4","LB5","LB6","LB7","LB8","0994" "LB9","LB10","LB11","LB12","LB13","LB14","LB15","LB16","0AE5" SEL-300G Instruction Manual Date Code 20001212...
Page 634 "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" "50H2A","50H2B","50H2C","*","*","*","*","*","07B5" "*","*","*","*","*","*","*","*","04D0" "SET1","SET2","SET3","SET4","SET5","SET6","SET7","SET8","0C84" "SET9","SET10","SET11","SET12","SET13","SET14","SET15","SET16","0DD5" "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> Model SEL-0300G31 DNA message is: <STX>"EN","BKR","LOP","TRIP","21/51V","50","51","N","0983" "24","27/59","32","40","46","64G","81","87","07A8" "24TC","24D1","24D1T","24C2","24C2T","24CR","SS1","SS2","0B3B" "27P1","27P2","27PP1","27V1","59P1","59P2","59G1","59G2","0B2B" "32PTC","32P1","32P1T","32P2","32P2T","59V1","59Q","59PP1","0C01" "40ZTC","40Z1","40Z1T","40Z2","40Z2T","SWING","SG1","SG2","0C5A" "46QTC","46Q1","46Q1T","46Q2","46Q2T","46Q2R","INAD","INADT","0CF7" "78R1","78R2","78Z1","OOSTC","51CTC","51C","51CT","51CR","0BC8" "51GTC","51G","51GT","51GR","51NTC","51N","51NT","51NR","0B7E" "51VTC","51V","51VT","51VR","PDEM","QDEM","GDEM","NDEM","0C3B" "50P1","50P1T","50P2","50P2T","50G1","50G1T","50G2","50G2T","0BE0" "50N1","50N1T","50N2","50N2T","CC","CL","CLOSE","ULCL","0B75" "64GTC","64G1","64G1T","64G2","64G2T","OOS","60LOP","CLEN","0C5E" Date Code 20001212 SEL-300G Instruction Manual...
Page 635 "RB9","RB10","RB11","RB12","RB13","RB14","RB15","RB16","0B15" "*","*","*","*","*","*","*","*","04D0" "SV1","SV2","SV3","SV4","SV1T","SV2T","SV3T","SV4T","0BAC" "SV5","SV6","SV7","SV8","SV5T","SV6T","SV7T","SV8T","0BCC" "SV9","SV10","SV11","SV12","SV9T","SV10T","SV11T","SV12T","0CD6" "SV13","SV14","SV15","SV16","SV13T","SV14T","SV15T","SV16T","0D44" "DP8","DP7","DP6","DP5","DP4","DP3","DP2","DP1","09C4" "DP16","DP15","DP14","DP13","DP12","DP11","DP10","DP9","0B15" "ER","OOST","IN106","IN105","IN104","IN103","IN102","IN101","0C61" "ALARM","OUT107","OUT106","OUT105","OUT104","OUT103","OUT102","OUT101", "0FC8" "87B","87BL1","87BL2","87BL3","87R","87R1","87R2","87R3","0B58" "87U","87U1","87U2","87U3","50H1","50H1T","50H2","50H2T","0B48" "50Q1","50Q1T","50Q2","50Q2T","50R1","50R1T","50R2","50R2T","0C10" "59VP","59VS","CFA","BKRCF","BSYNCH","25C","25A1","25A2","0C01" "59PP2","27PP2","SF","VDIF","GENVHI","GENVLO","GENFHI","GENFLO","0EB5" "*","*","*","*","*","*","*","27VS","05B8" "21PTC","21P1P","21P1T","21P2P","21P2T","*","*","*","0A22" "IN208","IN207","IN206","IN205","IN204","IN203","IN202","IN201","0CEC" "*","*","*","*","*","*","*","*","04D0" "OUT201","OUT202","OUT203","OUT204","OUT205","OUT206","OUT207","OUT208", "0FF4" "OUT209","OUT210","OUT211","OUT212","*","*","*","*","0A5F" "50H2A","50H2B","50H2C","*","*","*","*","*","07B5" "*","*","*","*","*","*","*","*","04D0" "SET1","SET2","SET3","SET4","SET5","SET6","SET7","SET8","0C84" "SET9","SET10","SET11","SET12","SET13","SET14","SET15","SET16","0DD5" "RST1","RST2","RST3","RST4","RST5","RST6","RST7","RST8","0CEC" "RST9","RST10","RST11","RST12","RST13","RST14","RST15","RST16","0E3D" "LT1","LT2","LT3","LT4","LT5","LT6","LT7","LT8","0A24" "LT9","LT10","LT11","LT12","LT13","LT14","LT15","LT16","0B75" "*","*","*","*","*","*","*","*","04D0" "*","*","*","*","*","*","*","*","04D0" <ETX> SEL-300G Instruction Manual Date Code 20001212...
Page 636 Byte in the A5D1 message. The first name is the MSB; the last name is the LSB. The BNA message is: <STX>"*","*","*","STSET","*","*","*","*","yyyy"<ETX> where: "yyyy" is the 4-byte ASCII representation of the checksum. "*" indicates an unused bit location. The BNA command is available from Access Level 1 and higher. Date Code 20001212 SEL-300G Instruction Manual...
Page 637 APPENDIX E: COMPRESSED ASCII COMMANDS NTRODUCTION The SEL-300G Relay provides compressed ASCII versions of some of the relay’s ASCII commands. The compressed ASCII commands allow an external device to obtain data from the relay in a format which directly imports into spreadsheet or database programs and that can be validated with a checksum.
Page 638 If a compressed ASCII request is made for data that are not available (e.g. the history buffer is empty or invalid event request), the relay responds with the following message: <STX>"No Data Available","0668"<CR><ETX> CASCII C – SEL-300G OMMAND Display the SEL-300G Relay compressed ASCII configuration message by sending: CAS <CR> Model SEL-0300G0 Relay sends: <STX> "CAS",5,"yyyy"<CR> "CST",1,"yyyy"<CR>...
Page 639 "1D","I","I","I","I","I","I","I","yyyy",<CR> "15H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","TARGETS", "IA","IB","IC","IN","IG","3I2","*","*","*","yyyy"<CR> "1D","F","I","I","I","6S","56S","I","I","I","I","I","I","I","I","I","yyyy"<CR> "14H","IA","IB","IC","IN","IG","VA(kV)","VB(kV)","VC(kV)","VN(kV)", "*","VDC", "FREQ","TRIG ","Names of elements in the relay word rows 2 - 51 separated by spaces","yyyy"<CR> "256D","I","I","I","I","I","F","F","F","F","F","I","F","2S","88S","yyyy"<CR> <ETX> Model SEL-0300G1 Relay sends: <STX> "CAS",5,"yyyy"<CR> "CST",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy",<CR> SEL-300G Instruction Manual Date Code 20001212...
Page 640 "FREQ","TRIG ","Names of elements in the relay word rows 2 - 51 separated by spaces","yyyy"<CR> "256D","I","I","I","I","I","F","F","F","F","F","I","F","2S","88S","yyyy"<CR> "CEV R",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy",<CR> "15H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","TARGETS", "IA","IB","IC","IN","IG","3I2","IA87","IB87","IC87","yyyy"<CR> "1D","F","I","I","I","6S","56S","I","I","I","I","I","I","I","I","I","yyyy"<CR> "14H","IA","IB","IC","IN","IG","VA(kV)","VB(kV)","VC(kV)","VN(kV) ","*","VDC", "FREQ","TRIG ","Names of elements in the relay word rows 2 - 51 separated by spaces","yyyy"<CR> "256D","I","I","I","I","I","F","F","F","F","I","F","2S","88S","yyyy"<CR> <ETX> Date Code 20001212 SEL-300G Instruction Manual...
Page 641 "CEV C",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy",<CR> "15H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","TARGETS", "IA","IB","IC","IN","IG","3I2","*","*","*","yyyy"<CR> "1D","F","I","I","I","6S","56S","I","I","I","I","I","I","I","I","I","yyyy"<CR> "14H","IA","IB","IC","IN","IG","VA(kV)","VB(kV)","VC(kV)","VN(kV)", "VS(kV) ","VDC", "FREQ","TRIG ","Names of elements in the relay word rows 2 - 51 separated by spaces","yyyy"<CR> "240D","I","I","I","I","I","F","F","F","F","F","I","F","2S","88S","yyyy"<CR> "CEV R",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy",<CR> SEL-300G Instruction Manual Date Code 20001212...
Page 642 "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy"<CR> "15H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","TARGETS", "IA","IB","IC","IN","IG","3I2","IA87","IB87","IC87","yyyy"<CR> "1D","F","I","I","I","6S","56S","I","I","I","I","I","I","I","I","I","yyyy"<CR> "14H","IA","IB","IC","IN","IG","VA(kV)","VB(kV)","VC(kV)","VN(kV)", "VS(kV) ","VDC", "FREQ","TRIG ","Names of elements in the relay word rows 2 - 51 separated by spaces","yyyy"<CR> "60D","I","I","I","I","I","F","F","F","F","F","I","F","2S","88S","yyyy"<CR> "CEV C",1,"yyyy"<CR> "1H","FID","yyyy"<CR> "1D","46S","yyyy"<CR> "7H","MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> "1D","I","I","I","I","I","I","I","yyyy",<CR> "15H","FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT","TARGETS", "IA","IB","IC","IN","IG","3I2","IA87","IB87","IC87","yyyy"<CR> "1D","F","I","I","I","6S","56S","I","I","I","I","I","I","I","I","I","yyyy"<CR> Date Code 20001212 SEL-300G Instruction Manual...
Page 643 Rows 2 - 51 separated by spaces” field. CSTATUS C – SEL-300G OMMAND Display status data in compressed ASCII format by sending: CST <CR> Model SEL-0300G0 Relay sends: <STX>"FID","yyyy"<CR> "Relay FID string","yyyy"<CR> "MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "IA","IB","IC","IN","VA","VB","VC","VN","MOF","*","*","*","*","+5V_PS","+5V_REG", "-5V_REG","+12V_PS","-12V_PS","+15V_PS","-15V_PS","TEMP","RAM","ROM","A/D","C R_RAM","EEPROM","IO_BRD","yyyy"<CR> ,"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","yyyy"<CR><ETX> SEL-300G Instruction Manual Date Code 20001212...
Page 644 "Relay FID string","yyyy"<CR> "MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> "IA","IB","IC","IN","VA","VB","VC","VN","MOF","IA87","IB87","IC87","VS","+5V_PS", "+5V_REG","-5V_REG","+12V_PS","-12V_PS","+15V_PS","-15V_PS","TEMP","RAM","RO M","A/D","CR_RAM","EEPROM","IO_BRD","yyyy"<CR> ,"xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx","xxxx", "yyyy"<CR><ETX> where: xxxx are the data values corresponding to the first line labels and yyyy is the 4-byte hex ASCII representation of the checksum. Date Code 20001212 SEL-300G Instruction Manual...
Page 645 (unfiltered) data; defaults to 16 samples per cycle unless overridden by the Sx parameter. Defaults to 16 cycles in length unless overridden with the Ly parameter. specifies 16 samples per cycle, 15 cycle length. Specifies differential data report (SEL-0300G1 and SEL-0300G3 models). SEL-300G Instruction Manual Date Code 20001212...
Page 646 SEL-0300G1 and SEL-0300G3 Relay models respond to the CEV DIF command with the nth event report as shown below. Items in italics will be replaced with the actual relay data. <STX>"FID","yyyy"<CR> "Relay FID string","yyyy"<CR> "MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR> xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR> Date Code 20001212 SEL-300G Instruction Manual...
Page 647 50G2T 50N1 50N1T 50N2 50N2T CC CL CLOSE ULCL 64GTC 64G1 64G1T 64G2 64G2T OOS 60LOP CLEN BKMON BCW BCWA BCWB BCWC FAULT DCLO DCHI 81D1 81D2 81D3 81D4 81D5 81D6 3PO 52A 81D1T 81D2T 81D3T 81D4T 81D5T 81D6T 27B81 50L SEL-300G Instruction Manual Date Code 20001212...
Page 648 RST8 RST9 RST10 RST11 RST12 RST13 RST14 RST15 RST16 LT1 LT2 LT3 LT4 LT5 LT6 LT7 LT8 LT9 LT10 LT11 LT12 LT13 LT14 LT15 LT16 * * * * * * * * * * * * * * * * " Date Code 20001212 SEL-300G Instruction Manual...
Page 649 DP5 DP4 DP3 DP2 DP1 DP16 DP15 DP14 DP13 DP12 DP11 DP10 DP9 ER OOST IN106 IN105 IN104 IN103 IN102 IN101 ALARM OUT107 OUT106 OUT105 OUT104 OUT103 OUT102 OUT101 87B 87BL1 87BL2 87BL3 87R 87R1 87R2 87R3 87U 87U1 87U2 87U3 SEL-300G Instruction Manual Date Code 20001212...
Page 650 OOS 60LOP CLEN BKMON BCW BCWA BCWB BCWC FAULT DCLO DCHI 81D1 81D2 81D3 81D4 81D5 81D6 3PO 52A 81D1T 81D2T 81D3T 81D4T 81D5T 81D6T 27B81 50L ONLINE BND1A BND1T BND2A BND2T BND3A BND3T BNDA TRGTR BND4A BND4T Date Code 20001212 SEL-300G Instruction Manual...
Page 651 The “Names of elements in the Relay Word separated by spaces” field is shown below for Model SEL-0300G31 Relay: "24TC 24D1 24D1T 24C2 24C2T 24CR SS1 SS2 27P1 27P2 27PP1 27V1 59P1 59P2 59G1 59G2 32PTC 32P1 32P1T 32P2 32P2T 59V1 59Q 59PP1 40ZTC 40Z1 40Z1T 40Z2 40Z2T SEL-300G Instruction Manual Date Code 20001212...
Page 652 Relay Word are “84”. In binary, this evaluates to 10000100. Mapping the labels to the bits yields: Labels 24TC 24D1 24D1T 24C2 24C2T 24CR Bits In this example, the 24TC and 24CR Relay Word bits are asserted (logical 1) ; all others are deasserted (logical 0). Date Code 20001212 SEL-300G Instruction Manual...
Page 653 Cyclical Redundancy Check (CRC) 2 bytes The SEL-300G Relay SLAVEID setting defines the device address. Set this value to a unique number for each device on the Modbus network. For Modbus communication to operate properly, no two slave devices may have the same address.
Page 654 (if applicable), and a cyclical redundancy check value. Supported Modbus Function Codes The SEL-300G Relay supports the Modbus function codes shown in Table F.2. Table F.2: SEL-300G Relay Modbus Function Codes Codes...
Page 655 CRC. If the calculated CRC matches the CRC sent by the SEL-300G Relay, the master device uses the data received. If there is not a match, the check fails and the message is ignored. The devices use a similar process when the master sends queries.
Page 656 Returned Counter Increments Invalid Illegal Data Address Invalid Address bit to read (02h) Invalid number of bits to Illegal Data Value Illegal Register read (03h) Format error Illegal Data Value Bad Packet Format (03h) Date Code 20020206 SEL-300G Instruction Manual...
Page 657 ® Modbus RTU Communications Protocol The coil number assignments are defined in Table F.5. Table F.5: SEL-300G Relay Command Coils (FC01h) Coil Number Description Coil Number Description OUT101 OUT102 OUT103 OUT104 OUT105 OUT106 OUT107 ALARM OUT201 OUT202 RB10 OUT203 RB11...
Page 658 If the number of bits requested is not evenly divisible by eight, the relay adds one more byte to maintain the balance of bits, padded by zeroes to make an even byte. Input numbers are defined in Table F.7. Table F.7: SEL-300G Relay Inputs Input Description...
Page 659 In each row, the input numbers are assigned from the right-most input to the left-most input (i.e., Input 1 is “N” and Input 8 is “EN”). Input addresses start at 0000 (i.e., Input 1 is located at Input Address 0000). SEL-300G Instruction Manual Date Code 20020206...
Page 660 2 bytes CRC-16 A successful response from the slave will have the following format: 1 byte Slave Address 1 byte Function Code (03h) 1 byte Bytes of data (n) n bytes Data 2 bytes CRC-16 Date Code 20020206 SEL-300G Instruction Manual...
Page 661 2 bytes CRC-16 A successful response from the slave will have the following format: 1 byte Slave Address 1 byte Function Code (04h) 1 byte Bytes of data (n) n bytes Data 2 bytes CRC-16 SEL-300G Instruction Manual Date Code 20020206...
Page 662 Function Code (05h) 2 bytes Coil Reference 1 byte Operation Code (FF for bit set, 00 for bit clear) 1 byte Placeholder (00) 2 bytes CRC-16 Note: The command response is identical to the command request. Date Code 20020206 SEL-300G Instruction Manual...
Page 663 RTU Communications Protocol F-11 The coil numbers supported by the SEL-300G Relay are listed in Table F.11. The physical coils (coils 1–20) are self-resetting. Pulsing a set remote bit clears the remote bit. Table F.11: SEL-300G Relay Command Coils (FC05h)
Page 664 06h Preset Single Register Command The SEL-300G Relay uses this function to allow a Modbus master to write directly to a database register. Refer to the Modbus Register Map in Table F.20 for a list of registers that can be written using this function code.
Page 665 Modbus RTU Communications Protocol F-13 07h Read Exception Status Command The SEL-300G Relay uses this function to allow a Modbus master to read the present status of the relay and protected circuit. Table F.13: 07h Read Exception Status Command Bytes...
Page 666 RTU Communications Protocol 08h Loopback Diagnostic Command The SEL-300G Relay uses this function to allow a Modbus master to perform a diagnostic test on the Modbus communications channel and relay. When the subfunction field is 0000h, the relay returns a replica of the received message.
Page 667 (03h) Illegal Write Incorrect number of bytes Illegal Data Value Bad Packet Format in query data region (03h) Illegal Write Invalid register data value Illegal Data Value Illegal Write (03h) SEL-300G Instruction Manual Date Code 20020206...
Page 668 RTU Communications Protocol 64h Scattered Register Read The SEL-300G Relay uses this function to allow a Modbus master to read noncontiguous registers in a single request. A maximum of 100 registers can be read in a single query. Table F.16: 64h Scattered Register Read Command...
Page 669 (02h) Controlling Output Contacts and Remote Bits Using Modbus The SEL-300G Relay Modbus Register Map (Table F.20) includes three fields that allow a Modbus master to force the relay to perform a variety of operations. Use Modbus function codes 06h or 10h to write the appropriate command codes and parameters into the registers shown in 0.
Page 670 06h, 10h Pulse OUT211 1–30 seconds duration (defaults to 1 second) 06h, 10h Pulse OUT212 1–30 seconds duration (defaults to 1 second) 06h, 10h Change Act. 06h, 10h Group Switch Protocol 0080h 06h, 10h Date Code 20020206 SEL-300G Instruction Manual...
Page 671 0000 0000 0001 0000 0001 0000 0000 0000 RB13 0000 0000 0010 0000 0010 0000 0000 0000 RB14 0000 0000 0100 0000 0100 0000 0000 0000 RB15 0000 0000 1000 0000 1000 0000 0000 0000 RB16 SEL-300G Instruction Manual Date Code 20020206...
Page 672 The Modbus Register Map (Table F.20) provides a feature that allows you to download complete event data via Modbus. The SEL-300G Relay stores the 29 latest event summaries and the 29 latest 15-cycle or the 15 latest 30-cycle full-length event reports. Please refer to Section 11: Event Reports and SER Functions for a detailed description.
Page 673 Relay Element Status Row 16 Relay Element Status Row 17 Relay Element Status Row 18 Relay Element Status Row 19 Relay Element Status Row 20 Relay Element Status Row 21 Relay Element Status Row 22 SEL-300G Instruction Manual Date Code 20020206...
Page 674 Relay Element Status Rows 0 and 1, which represents targets, are displayed at 0260h and 0261h in the Modbus Register Map. If the user selects an event number for which there is no data available, 8000h will be returned. Date Code 20020206 SEL-300G Instruction Manual...
Page 675 5000 0057 Channel IN status message — — — — — 0=OK, 1=Warn, 2=fail 0058 Channel VA offset value –5000 5000 0059 Channel VA status message — — — — — 0=OK, 1=Warn, 2=fail SEL-300G Instruction Manual Date Code 20020206...
Page 676 –1500 0.01 0073 (–12_ps) Power Supply Status — — — — — 0=OK, 1=Warn, 2=fail 0074 (+15_ps) Power Supply Value 2000 0.01 0075 (+15_ps) Power Supply — — — — — Status0=OK, 1=Warn, 2=fail Date Code 20020206 SEL-300G Instruction Manual...
Page 677 Phase A Voltage Angle degrees –18000 18000 0.01 009C Phase B Voltage 65535 009D Phase B Voltage Angle degrees –18000 18000 0.01 009E Phase C Voltage 65535 009F Phase C Voltage Angle degrees –18000 18000 0.01 SEL-300G Instruction Manual Date Code 20020206...
Page 678 0.01 00B5 LEAD/LAG 3 Phase — — — — — 0 = LAG 1 = LEAD 00B6 Positive Sequence Current ( I1 ) Amps 65535 00B7 Positive Sequence Current Angle degrees –18000 18000 0.01 Date Code 20020206 SEL-300G Instruction Manual...
Page 679 — 65535 winding 3 00D4 Second harmonic current in Amps 65535 0.01 winding 1 00D5 Percent of operate quantity for — 65535 winding 1 00D6 Second harmonic current in Amps 65535 0.01 winding 2 SEL-300G Instruction Manual Date Code 20020206...
Page 680 MWatts –32767 32767 00EC Megavars Phase A MVars –32767 32767 (DELTA_Y=Y)** 00ED Megavars Phase B MVars –32767 32767 (DELTA_Y=Y)** 00EE Megavars Phase C MVars –32767 32767 (DELTA_Y=Y)** 00EF Megavars 3 Phase MVars –32767 32767 Date Code 20020206 SEL-300G Instruction Manual...
Page 681 MWatts –32767 32767 (DELTA_Y=Y)** 0107 Megawatts Phase C MWatts –32767 32767 (DELTA_Y=Y)** 0108 Megawatts 3 Phase MWatts –32767 32767 0109 Megavars Phase A MVars –32767 32767 (DELTA_Y=Y)** 010A Megavars Phase B MVars –32767 32767 SEL-300G Instruction Manual Date Code 20020206...
Page 682 (DELTA_Y=Y)** 011F Megawatts 3 Phase MWattH 65535 0120 Megavars Phase A MVarH 65535 (DELTA_Y=Y)** 0121 Megavars Phase B MVarH 65535 (DELTA_Y=Y)** 0122 Megavars Phase C MVarH 65535 (DELTA_Y=Y)** 0123 Megavars 3 Phase MVarH 65535 Date Code 20020206 SEL-300G Instruction Manual...
Page 683 Max Phase B Current Date 0141 month 0142 year 1992 2999 0143 Min Phase B Current Amps 65535 0144 Min Phase B Current Time 0145 0146 minute 0147 hour 0148 Min Phase B Current Date 0149 month SEL-300G Instruction Manual Date Code 20020206...
Page 684 Min Neutral Current Time 0165 0166 minute 0167 hour 0168 Min Neutral Current Date 0169 month 016A year 1992 2999 016B Max Residual Current Amps 65535 016C Max Residual Current Time 016D 016E minute 016F hour Date Code 20020206 SEL-300G Instruction Manual...
Page 685 018D 018E minute 018F hour 0190 Max Phase B Voltage Date 0191 month 0192 year 1992 2999 0193 Min Phase B Voltage 65535 0194 Min Phase B Voltage Time 0195 0196 minute 0197 hour SEL-300G Instruction Manual Date Code 20020206...
Page 686 Min Sync Voltage Time 01B5 01B6 minute 01B7 hour 01B8 Min Sync Voltage Date 01B9 month 01BA year 1992 2999 01BB Max Neutral Voltage 65535 01BC Max Neutral Voltage Time 01BD 01BE minute 01BF hour Date Code 20020206 SEL-300G Instruction Manual...
Page 687 Voltage Date 01D9 month 01DA year 1992 2999 01DB Max Neutral 3 Harmonic 65535 Voltage 01DC Max Neutral 3 Harmonic Voltage Time 01DD 01DE minute 01DF hour 01E0 Max Neutral 3 Harmonic Voltage Date SEL-300G Instruction Manual Date Code 20020206...
Page 688 01FF hour 0200 Max Phase B 87 Current Date 0201 month 0202 year 1992 2999 0203 Min Phase B 87 Current Amps 65535 0204 Min Phase B 87 Current Time 0205 0206 minute Date Code 20020206 SEL-300G Instruction Manual...
Page 689 0227 hour 0228 Min 3 Phase Mega Watts Date 0229 month 022A year 1992 2999 022B Max 3 Phase Mega Vars MVars –32767 32767 022C Max 3 Phase Mega Vars Time 022D 022E minute SEL-300G Instruction Manual Date Code 20020206...
Page 690 32767 024D Temp Input 12 degrees –32767 32767 024E Reserved 024F Reserved Relay Time and Date 0250 Time ss (RW) (See Note 5) 0251 minute (RW) 0 0252 hour (RW) 0253 Date day (RW) Date Code 20020206 SEL-300G Instruction Manual...
Page 691 IN106 IN105 IN104 IN103 IN102 IN101 0263 Input Contact Status 2 65535 IN208 IN207 IN206 IN205 IN204 IN203 IN202 IN201 0264 Output Contact Status 1 65535 ALARM OUT107 OUT106 OUT105 OUT104 OUT103 OUT102 OUT101 SEL-300G Instruction Manual Date Code 20020206...
Page 692 24CR 0268 Row 3 65535 27P1 27P2 27PP1 27V1 59P1 59P2 59G1 59G2 0269 Row 4 65535 32PTC 32P1 32P1T 32P2 32P2T 59V1 59PP1 026A Row 5 65535 40ZTC 40Z1 40Z1T 40Z2 40Z2T SWING Date Code 20020206 SEL-300G Instruction Manual...
Page 693 51NR 026E Row 9 65535 51VTC 51VT 51VR PDEM QDEM GDEM NDEM 026F Row 10 65535 50P1 50P1T 50P2 50P2T 50G1 50G1T 50G2 50G2T 0270 Row 11 65535 50N1 50N1T 50N2 50N2T CLOSE ULCL SEL-300G Instruction Manual Date Code 20020206...
Page 694 Row 15 65535 81D1T 81D2T 81D3T 81D4T 81D5T 81D6T 27B81 0275 Row 16 65535 ONLINE BND1A BND1T BND2A BND2T BND3A BND3T BNDA 0276 Row 17 65535 TRGTR BND4A BND4T BND5A BND5T BND6A BND6T BNDT Date Code 20020206 SEL-300G Instruction Manual...
Page 695 ULTR1 ULTR2 ULTR3 ULTR4 0279 Row 20 65535 027A Row 21 65535 LB10 LB11 LB12 LB13 LB14 LB15 LB16 027B Row 22 65535 027C Row 23 65535 RB10 RB11 RB12 RB13 RB14 RB15 RB16 SEL-300G Instruction Manual Date Code 20020206...
Page 696 Row 26 65535 SV5T SV6T SV7T SV8T 0280 Row 27 65535 SV10 SV11 SV12 SV9T SV10T SV11T SV12T 0281 Row 28 65535 SV13 SV14 SV15 SV16 SV13T SV14T SV15T SV16T 0282 Row 29 65535 Date Code 20020206 SEL-300G Instruction Manual...
Page 697 OUT101 0286 Row 33 65535 87BL1 87BL2 87BL3 87R1 87R2 87R3 0287 Row 34 65535 87U1 87U2 87U3 50H1 50H1T 50H2 50H2T 0288 Row 35 65535 50Q1 50Q1T 50Q2 50Q2T 50R1 50R1T 50R2 50R2T SEL-300G Instruction Manual Date Code 20020206...
Page 698 Row 38 65535 87NTC 87N1P 87N1T 87N2P 87N2T 27VS 028C Row 39 65535 21PTC 21P1P 21P1T 21P2P 21P2T 028D Row 40 65535 IN208 IN207 IN206 IN205 IN204 IN203 IN202 IN201 028E Row 41 65535 Date Code 20020206 SEL-300G Instruction Manual...
Page 699 Row 44 65535 50H2A 50H2B 50H2C 0292 Row 45 65535 0293 Row 46 65535 SET1 SET2 SET3 SET4 SET5 SET6 SET7 SET8 0294 Row 47 65535 SET9 SET10 SET11 SET12 SET13 SET14 SET15 SET16 SEL-300G Instruction Manual Date Code 20020206...
Page 700 RST16 0297 Row 50 65535 0298 Row 51 65535 LT10 LT11 LT12 LT13 LT14 LT15 LT16 0299 Row 52 65535 OTHTRIPOT HALRM AMBTRIP AMBALRMB RGTRIP BRGALRMW DGTRIPWDG ALRM 029A Row 53 65535 RTDFLT 2600IN Date Code 20020206 SEL-300G Instruction Manual...
Page 701 (see Note 1) 02BA (See Note 2) 02BB 02BC 02BD Event Type Code (See Note 8) 02BE Current 65535 02BF Frequency 7000 0.01 02C0 Group 02C1 Targets 1 65535 CLOSED LOP 60 TRIP 21/51V SEL-300G Instruction Manual Date Code 20020206...
Page 702 4 ½ cycle –32767 32767 02E5 4 ¾ cycle –32767 32767 02E6 5 cycle –32767 32767 02E7 5 ¼ cycle –32767 32767 02E8 5 ½ cycle –32767 32767 02E9 5 ¾ cycle –32767 32767 Date Code 20020206 SEL-300G Instruction Manual...
Page 703 14 ½ cycle –32767 32767 030D 14 ¾ cycle –32767 32767 030E 15 cycle –32767 32767 030F 15 ¼ cycle –32767 32767 0310 15 ½ cycle –32767 32767 0311 15 ¾ cycle –32767 32767 SEL-300G Instruction Manual Date Code 20020206...
Page 704 24 ½ cycle –32767 32767 0335 24 ¾ cycle –32767 32767 0336 25 cycle –32767 32767 0337 25 ¼ cycle –32767 32767 0338 25 ½ cycle –32767 32767 0339 25 ¾ cycle –32767 32767 Date Code 20020206 SEL-300G Instruction Manual...
Page 705 Event type ASCII string (see Note 1) 0353 (see Note 2) 0354 0355 0356 Event Type Code (see Note 8) 0357 Frequency 65536 0.01 0358 Targets 1 65535 BKR CLOSED LOP 60 TRIP 21/51V SEL-300G Instruction Manual Date Code 20020206...
Page 706 Sync Check Report (See Note 6) 0380 Number of Sync Check Reports — — 0381 Sync Check Report Selection (RW) (See Note 5) 0382 CLOSE Asserted At (Time ) 0383 0384 minute 0385 hour Date Code 20020206 SEL-300G Instruction Manual...
Page 707 03A0 hour 03A1 Breaker Close Time 65535 0.01 03A2 Average Breaker Close Time 65535 0.01 03A3 Close Operations 65535 03A4 Last Reset Time 03A5 03A6 minute 03A7 hour 03A8 Last Reset Date 03A9 month SEL-300G Instruction Manual Date Code 20020206...
Page 708 65535 Accumulator 03D8 % of limit setting 65535 03D9 Frequency Band 3, Time 65535 Accumulator 03DA % of limit setting 65535 03DB Frequency Band 4, Time 65535 Accumulator 03DC % of limit setting 65535 Date Code 20020206 SEL-300G Instruction Manual...
Page 709 2999 03F9 MW out MWatts –32767 32767 03FA MVAR out MVars –32767 32767 03FB MVAR in MVars –32767 32767 03FC Power factor 03FD LEAD/LAG Power Factor 0 = LAG,1 = LEAD 03FE– Reserved 03FF SEL-300G Instruction Manual Date Code 20020206...
Page 710 All values are in degrees Centigrade or degrees Fahrenheit based on relay setting TEMREF Note 5 Registers (RW) are read write registers Registers (W) are write only registers Registers ® are read only registers All other registers are read only Date Code 20020206 SEL-300G Instruction Manual...
Page 711 History data, SER data, Sync Check Report data, or Generator Operation Profile data via Modbus. The SEL-300G relay stores the twenty-nine latest event reports, twenty-nine latest event summaries (History data), 512 SER, Generator Operating Profile data, and three Sync Check Report in nonvolatile memory.
Page 713 SEL-300G Relay Command Summary Access The only thing that can be done at Access level 0 is to go to Access Level 1 or use the Level 0 HELP command. The screen prompt is: = Commands Enter Access Level 1. If the main board password jumper is not in place, the relay prompts for the entry of the Access Level 1 password in order to enter Access Level 1.
Page 714 SET P n Change port n settings. SET R Change Sequential Events Recorder (SER) settings. STA C Reset self-test warnings/failures, clear data buffers and restart relay. SYN R Reset Synch-Check function breaker close time average. Date Code 20001212 SEL-300G Instruction Manual...

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