Toshiba GRL100-701B Instruction Manual

Grl100-7**b series. line differential relay

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6 F 2 S 0 8 5 0

INSTRUCTION MANUAL

LINE DIFFERENTIAL RELAY

GRL100 - 7∗∗B

TOSHIBA Corporation 2006

( Ver. 0.3 )

Table of Contents

Summary of Contents for Toshiba GRL100-701B

Page 2: Safety Precautions
6 F 2 S 0 8 5 0 Safety Precautions Before using this product, please read this chapter carefully. This chapter describes the safety precautions recommended when using the GRL100. Before installing and using the equipment, this chapter must be thoroughly read and understood. Explanation of symbols used Signal words such as DANGER, WARNING, and two kinds of CAUTION, will be followed by important safety information that must be carefully reviewed.
Page 3 6 F 2 S 0 8 5 0 DANGER • Current transformer circuit Never allow the current transformer (CT) secondary circuit connected to this equipment to be opened while the primary system is live. Opening the CT circuit will produce a dangerously high voltage.
Page 4 6 F 2 S 0 8 5 0 • Modification Do not modify this equipment, as this may cause the equipment to malfunction. • Short-link Do not remove a short-link which is mounted at the terminal block on the rear of the relay before shipment, as this may cause the performance of this equipment such as withstand voltage, etc., to reduce.
Page 5: Table Of Contents
6 F 2 S 0 8 5 0 Contents Safety Precautions Introduction Application Notes 2.1 Protection Schemes 2.2 Current Differential Protection 2.2.1 Operation of Current Differential Protection 2.2.2 Segregated-phase Current Differential Protection 2.2.3 Zero-phase Current Differential Protection 2.2.4 Fail-safe Function 2.2.5 Remote Differential Trip 2.2.6 Transmission Data 2.2.7 Synchronized Sampling...
Page 6 6 F 2 S 0 8 5 0 2.13.3 Setting 2.14 Tripping Output 2.15 Autoreclose 2.15.1 Application 2.15.2 Scheme Logic 2.15.3 Autoreclose Output Signals 2.16 Characteristics of Measuring Elements 2.16.1 Segregated-phase Current Differential Element DIF and DIFSV 2.16.2 Zero-phase Current Differential Element DIFG 2.16.3 Distance Measuring Elements Z1, Z2, Z3, Z4, ZR and PSB 2.16.4 Phase Selection Element UVC 2.16.5 Directional Earth Fault Elements DEFF and DEFR...
Page 7 6 F 2 S 0 8 5 0 3.3.8 GPS Signal Reception Monitoring (For GPS-mode only) 3.3.9 Relay Address Monitoring 3.3.10 Disconnector Monitoring 3.3.11 Failure Alarms 3.3.12 Trip Blocking 3.3.13 Setting 3.4 Recording Function 3.4.1 Fault Recording 3.4.2 Event Recording 3.4.3 Disturbance Recording 3.5 Metering Function User Interface...
Page 8 6 F 2 S 0 8 5 0 6.5 Function Test 6.5.1 Measuring Element 6.5.2 Timer 6.5.3 Protection Scheme 6.5.4 Metering and Recording 6.5.5 Fault Locator 6.6 Conjunctive Tests 6.6.1 On Load Test 6.6.2 Signaling Circuit Test 6.6.3 Tripping and Reclosing Circuit Test 6.7 Maintenance 6.7.1 Regular Testing 6.7.2 Failure Tracing and Repair...
Page 9 6 F 2 S 0 8 5 0 Appendix A Block Diagram Appendix B Signal List Appendix C Variable Timer List Appendix D Binary Output Default Setting List Appendix E Details of Relay Menu and LCD & Button Operation Appendix F Case Outline Appendix G Typical External Connection Appendix H Relay Setting Sheet Appendix I Commissioning Test Sheet (sample)
Page 10: Introduction
6 F 2 S 0 8 5 0 1. Introduction The GRL100 provides high-speed phase-segregated current differential protection for use with telecommunication systems, and ensures high reliability and security for diverse faults including single-phase and multi-phase faults and double-faults on double-circuit lines, evolving faults and high-impedance earth faults.
Page 11 6 F 2 S 0 8 5 0 Programmable logic for I/O configuration, alarms, indications, recording, etc. Automatic supervision The GRL100 has the following models: Relay Type and Model Relay Type: - Type GRL100; Numerical current differential relay Relay Model: - For two terminal line, With distance protection and autoreclose •...
Page 12: Application Notes
6 F 2 S 0 8 5 0 2. Application Notes 2.1 Protection Schemes The GRL100 provides the following protection schemes (Appendix A shows block diagrams of the GRL100-700 series): • Segregated-phase current differential protection • Zero-phase current differential protection •...
Page 13: Current Differential Protection
6 F 2 S 0 8 5 0 2.2 Current Differential Protection GRL100 is applicable to telecommunication systems which employ dedicated optical fibre, 64 kbit/s multiplexed communication channels or microwave links. 2.2.1 Operation of Current Differential Protection Current differential protection compares the currents flowing into and out of the protected line. The difference of the currents, that is, the differential current, is almost zero when a fault is external or there is no fault, and is equal to the fault current when the fault is internal.
Page 14: Zero-Phase Current Differential Protection
6 F 2 S 0 8 5 0 Tripping output signals can be blocked by the PLC command DIF_BLOCK and CRT_BLOCK. The output signals of DIF-A, DIF-B and DIF-C are also blocked when a communication circuit failure is detected by the data error check, sampling synchronism check or interruption of the receive signals.
Page 15: Fail-Safe Function
6 F 2 S 0 8 5 0 restraint. For details of the characteristic, see Section 2.16. The scheme logic is shown in Figure 2.2.3.1. The output signal of the differential element DIFG performs time-delayed three-phase tripping of the circuit breaker with the tripping output signal DIFG.FS_TRIP.
Page 16: Remote Differential Trip
6 F 2 S 0 8 5 0 OC1-A ≥1 & DIF.FS-A_OP DIF-A_FS ≥1 DIF.FS_OP OC1-B ≥1 DIF-B_FS & DIF.FS-B_OP DIF-C_FS (see Fig. 2.2.2.1.) OC1-C ≥1 & DIF.FS-C_OP OCD-A & OCD-B & OCD-C & [DIF-FS] ≥1 " " ≥1 " "...
Page 17 6 F 2 S 0 8 5 0 sends the command when the tripping signals RDIF-A-S, RDIF-B-S, RDIF-C-S or RDIF-S are output locally and the scheme switches [RDIF] and [TERM] are set to “ON” and “3-TERM” respectively. The RDIF command is sent to the remote terminal via the 64kb/s digital link together with other data and signals.
Page 18: Transmission Data
6 F 2 S 0 8 5 0 2.2.6 Transmission Data The following data are transmitted to the remote terminal via the 64kb/s digital link. The data depends on the communication mode and whether a function is used or not. The details are shown in Appendix N.
Page 19 6 F 2 S 0 8 5 0 B-MODE, and the latter is applied to GPS-MODE. The intra-system synchronization keeps the sampling timing error between the terminals within ±10µs or ±20µs and the GPS-based system keeps it within ±5µs or ±10µs for two- or three-terminal applications.
Page 20 6 F 2 S 0 8 5 0 oscillator in the slave terminal. The difference of the transmission delay time T dd (= T d1 − T d2 ) is set to zero when sending and receiving take the same route and exhibit equal delays. When the route is separate and the sending and receiving delays are different, T dd must be set at each terminal to be equal to the sending delay time minus the receiving delay time.
Page 21 6 F 2 S 0 8 5 0 T d = ({T o − (T − T M )}/2 + T dd )/2 The calculated transmission delay time T d1 is divided by the sampling interval T. The mantissa is truncated and the quotient is expressed as an integer. If the integer is set to P, the reception at the slave terminal of the signal sent from the master terminal occurs at P sampling intervals from the transmission.
Page 22 6 F 2 S 0 8 5 0 Timing synchronization When the GPS signal is received normally at every line terminal, the GRL100 performs synchronized sampling based on the received clock signal. The GRL100 can provide a backup synchronization system if the GPS signal is interrupted at one or more terminals, and perform synchronized sampling without any external reference clock.
Page 23 6 F 2 S 0 8 5 0 time difference between send and receive terminals is less than the PDTD setting and the SYNC ALARM LED is off. If these conditions are not satisfied, the operation may cause a false tripping.
Page 24 6 F 2 S 0 8 5 0 θ θ -I1A Figure 2.2.7.5 Current Phase Difference Check Sampling address synchronization The same method as described in section 2.2.7.1 is employed in Mode 0 and Mode 2A where the sampling synchronization must be established. It is not employed in Mode 1 and 2B because the sampling address synchronization has already been established in the previous mode.
Page 25: Charging Current Compensation
6 F 2 S 0 8 5 0 between the remaining terminals to be performed. • If the slave terminal is out-of-service, the master and another slave terminal maintain the differential protection. When two terminals are out-of-service in a three-terminal line, the remaining terminal continues the current differential protection using the local current irrespective of whether it is a master terminal or a slave terminal.
Page 26: Blind Zone Protection
6 F 2 S 0 8 5 0 I = I’ - I c where, I = compensated current I’ = actual measured current Note that since GRL100 calculates both the charging current and compensated line current on a sample by sample basis, all necessary phase information is inherently taken into account. 2.2.9 Blind Zone Protection The GRL100 relay has “Out-of-Service Detection Logic”...
Page 27: Application To Three-Terminal Lines
6 F 2 S 0 8 5 0 Blind Zone I R (=I F ) I L (=I F ) LOCAL REMOTE LINE FAULT BUSBAR PROT. DIFF RELAY GRL100 (REMOTE) 89L1 DIFF RELAY GRL100 (LOCAL) Comm. Link CB CLOSE COMMAND CBDS-A,B,C CBDS-A,B,C ≧1...
Page 28 6 F 2 S 0 8 5 0 Case 1 Open Case 2 Figure 2.2.10.1 Fault Current Outflow in Internal Fault The larger current outflows from terminal C when the fault location is closer to terminal B and the power source behind terminal C is weaker. In case of a double-circuit three-terminal line, 50% of the fault current flowing in from terminal A can flow out from terminal C if terminal C is very close to the junction and has no power source behind it.
Page 29: Dual Communication Mode
6 F 2 S 0 8 5 0 But in case of a three-terminal line, the magnitude of the current varies between the terminals and the terminal closest to the external fault has the largest magnitude of outflowing fault current. Thus, the CT errors are not offset in the differential current calculation. Thus, it is necessary to check whether any fault causes CT saturation, particularly in the terminal with outflow, and the saturation must be accommodated utilising the DIFI2 setting of the DIF element.
Page 30: Communication System
6 F 2 S 0 8 5 0 Terminal A Terminal B Figure 2.2.12.2 Fault Current Outflow in Internal Fault 2.2.13 Communication System 2.2.13.1 Signaling Channel The GRL100 transmits all the local data to the remote terminal by coded serial messages. Two signaling channels are required for two-terminal line protection, six for three-terminal line protection and four for dual communication for two-terminal line as shown in Figure 2.2.13.1.
Page 31 6 F 2 S 0 8 5 0 The variation of the channel delay time due to switching the route of the channel is automatically corrected in the relay and does not influence the synchronized sampling provided the sending and receiving channels take the same route. If the routes are separate, the transmission delay difference time must be set (see Section 2.2.7).
Page 32 6 F 2 S 0 8 5 0 Optical fiber circuit GRL100 Optical interface (a) Direct link Multiplexed circuit Twisted pair cable with shield < 60m GRL100 Electrical interface (b) Electrical link via multiplexer Twisted pair cable Optical with shield < 60m fibers GRL100 Optical interface...
Page 33 6 F 2 S 0 8 5 0 2.2.13.3 Setup of Communication Circuit The GRL100 is provided with one set of transmit and receive signal terminals for two-terminal application models and two sets of signal terminals for three-terminal application models. In case of two-terminal applications, the communication circuit is set as shown in Figure 2.2.13.3.
Page 34 6 F 2 S 0 8 5 0 Terminal A Terminal B GRL100 GRL100 Signal ground Signal ground Shield Shield (e) Link via Multiplexer (Electrical Interface in accordance with X.21, RS530) Terminal A Terminal B GRL100 GRL100 Signal ground Signal ground Shield Shield Signal ground...
Page 35 6 F 2 S 0 8 5 0 Terminal A Terminal B GRL100 GRL100 Terminal C GRL100 Figure 2.2.13.4 Communication Circuit Setup for Three-terminal Applications Terminal A Terminal B GRL100 GRL100 Note: The corresponding channels are connected to each other. Figure 2.2.13.5 Dual Communication Mode 2.2.13.4 Telecommunication Channel Monitoring If a failure occurs or noise causes a disturbance in the telecommunication channel, this may...
Page 36: Setting
6 F 2 S 0 8 5 0 2.2.14 Setting The following shows the setting elements necessary for the current differential protection and their setting ranges. The settings can be made on the LCD screen or PC screen. Element Range Step Default Remarks...
Page 37 6 F 2 S 0 8 5 0 Element Range Step Default Remarks Communication Mode [SP.SYN] Master/Slave Master(*3) Sampling synchronization [CH. CON] Normal/Exchange Normal Telecommunication port exchanger [T.SFT1] ON/OFF Channel 1 bit shifting for multiplexer [T.SFT2] ON/OFF Channel 2 bit shifting for multiplexer [B.SYN1] ON/OFF Channel 1 bit synchronising for...
Page 38 6 F 2 S 0 8 5 0 If the CT secondary ratings at the local and remote terminals are different, relay model suitable for the CT secondary rating is used at each terminal and then CT ratio matching can be applied the same as above.
Page 39 6 F 2 S 0 8 5 0 double-circuit lines, lines with outer loop circuit, or double-circuit lines with one-and-a-half busbar system. DIFI2 should be set larger than the possible largest value of outflow current in case of an internal fault. As the occurrence of current outflow depends on the power system configuration or operation, it is necessary to check whether it is possible for the fault current to flow out of the line.
Page 40 6 F 2 S 0 8 5 0 ‘GPS-MODE’. The ‘GPS-MODE’ is only available for the relay provided with a GPS interface. PDTD, GPSBAK, AUTO2B, SRCθ : Available for [COMMODE]=‘GPS-MODE’ setting. See Section 2.2.7. Note: Do not set [TERM] to “Dual” in GPS-mode. Setting of TDSV, TCDT1 and TCDT2 The TDSV is a transmission delay time threshold setting.
Page 41 6 F 2 S 0 8 5 0 B.SYN1: is set to 'ON' when the relay is linked via multiplexer, and set to 'OFF' when direct link is applied. (for channel 1) This setting is available for CCITT G703-1.2.1, 1.2.2, 1.2.3, X21 and optical interface (short distance: 2km class).
Page 42 6 F 2 S 0 8 5 0 Setting depending on communication mode The setting depending on communication mode is shown in the following table. Setting A-MODE B-MODE GPS-MODE Default setting Remarks Communication COMMODE Must select “A” of Must select “B” of Must select “GPS”...
Page 43 6 F 2 S 0 8 5 0 “Master” or Slave” in SP.SYN. If the master terminal becomes out-of-service, therefore, the synchronization control of slave terminal follows that of the master terminal by ON/OFF at the master terminal and the current differential protection is blocked. When putting a terminal into out-of-service in three-terminal operation, the following setting change method is recommended: (Example)
Page 44: Distance Protection
6 F 2 S 0 8 5 0 2.3 Distance Protection 2.3.1 Time-Stepped Distance Protection 2.3.1.1 Application Using reach and tripping time settings coordinated with adjacent lines, the GRL100 provides three steps of distance protection for forward faults and one backup protection for reverse faults. These are used as the main protection when telecommunications are not available, or as backup protection for the protected line and adjacent lines.
Page 45 6 F 2 S 0 8 5 0 BFRG BFRS BFR2G BFR2S BFR1S BFR1G BRRS BRRG BRLS BRLG a) Phase fault element (b) Earth fault element Figure 2.3.1.2 Quadrilateral Characteristics Figure 2.3.1.3 shows typical time-distance characteristics of the time-stepped distance protection provided at terminal A.
Page 46 6 F 2 S 0 8 5 0 at the remote terminal. This is because it is difficult for zone 3 at terminals A and C to provide remote backup protection for the fault shown in Figure 2.3.1.4 due to fault infeed from the other terminal, whereas reverse looking zone R of terminal B is not affected by this.
Page 47 6 F 2 S 0 8 5 0 tripping can be disabled by the scheme switches [Z1CNT] and [Z∗TP]. Note: For the symbols used in the scheme logic, see Appendix L. TZ1G S-TRIP [PSB-Z1] Phase Trip Sigle-phase & selection mode "ON"...
Page 48 6 F 2 S 0 8 5 0 Table 2.3.1.1 Zone 1 Trip Mode Control Z1CNT CURRENT DIFFERENTIAL PROTECTION USE OR NOT Position NO USE (*) SINGLE-PHASE TRIP & AUTO-REC SINGLE-PHASE INST. TRIP & AUTO-REC THREE-PHASE TRIP SINGLE-PHASE INST. TRIP & AUTO-REC THREE-PHASE TRIP THREE-PHASE INST.
Page 49 6 F 2 S 0 8 5 0 Defalt setting Z1 can trip instantaneously. [Z1CNT] Z1_INST_TP 1936 Z1CNT_INST [DIF] Zone 1 Trip Z1 performs three-phase trip. Z1_3PTP 1968 Z1CNT_3PTP "OFF" Mode Defalt setting Z1 performs final tripping Communication From Z1CNT_ARCBLK 1847 Z1_ARC_BLOCK Control...
Page 50 6 F 2 S 0 8 5 0 is always output. The condition for the UVC two-phase operation is to inhibit the Z1S from overreaching in the event of a single-phase earth fault. The UVC element is applied to the zone 1 distance elements. EFL is an earth fault detection element, and UVPWI is a phase undervoltage relay to provide countermeasures for overreaching of a leading-phase distance element at positive phase weak infeed condition.
Page 51 6 F 2 S 0 8 5 0 Element Range Step Default Remarks Z2 reach 0.01 - 50.00Ω 0.01Ω 4.00Ω (0.10 - 250.00Ω 0.01Ω 20.00Ω) BFR2G Forward right blinder reach for Z2 0.10 - 20.00Ω 0.01Ω 5.10Ω (0.5 - 100.0Ω 0.1Ω...
Page 52 6 F 2 S 0 8 5 0 (*1) Ohmic values shown in the parentheses are in the case of 1 A rating. Other ohmic values are in the case of 5 A rating. (*2) Valid only when mho-based characteristic is selected by ZS-C and ZG-C. (*3) Valid only when quadrilateral characteristic is selected by ZS-C and ZG-C.
Page 53 6 F 2 S 0 8 5 0 Zone 1 setting Since instantaneous tripping is allowed in zone 1, it is desirable to select a setting that will cover the widest possible range of the protected line. Conversely, zone 1 elements must not respond to faults further than the remote end.
Page 54 6 F 2 S 0 8 5 0 • Line protection of adjacent lines • Remote end breaker failure protection Zone 3 setting Zone 3, in cooperation with zone 2, affords backup protection for faults that have occurred on adjacent lines. The reach should be set to exceed the remote end of the longest adjacent line whenever possible.
Page 55 6 F 2 S 0 8 5 0 limited to the BFR∗ setting reach as shown in Figure 2.3.1.11(b). BFR1 BFR2 BFR2 BFR1 Figure 2.3.1.11 BFR Reach The BFL angle can be set to 90 to 135° and is set to 120° as a default. The BRL angle is linked with the BFL angle.
Page 56 6 F 2 S 0 8 5 0 V a = (I a − I 0 )Z 1 + I 0 × Z 0 + I om × Z om where, V a : Phase “a” voltage I a : Phase “a” current I 0 : Zero-sequence current of the protected line I 0m : Zero-sequence current of the parallel line...
Page 57 6 F 2 S 0 8 5 0 I 0X : imaginary part of zero-sequence current of the protected line I 0R : real part of zero-sequence current of the protected line I omX : imaginary part of zero-sequence current of the parallel line I omR : real part of zero-sequence current of the parallel line I 0 ’...
Page 58 6 F 2 S 0 8 5 0 0.00 - 5.00 A 0.01 A 0.0 0 Charging current setting ( 0.00 - 1.00 A 0.01 A 0.00 A) (*) 100 - 120 110 V Rated line voltage (*) Current values shown in the parentheses are in the case of 1 A rating. Other current values are in the case of 5 A rating.
Page 59: Command Protection
6 F 2 S 0 8 5 0 2.3.2 Command Protection If operational information from the distance relays located at each end of the protected line is exchanged by means of telecommunication, it is possible to accurately determine whether or not the fault is internal or external to the protected line.
Page 60 6 F 2 S 0 8 5 0 far from the fault, but they can operate if the other terminal trips. Transmission of the trip permission signal continues for the setting time of TSBCT after reset of zone 1, and thus even the terminal for which the overreaching element has delayed-picked up can also trip.
Page 61 6 F 2 S 0 8 5 0 When a sequential fault clearance occurs for a fault on a parallel line, the direction of the current on the healthy line is reversed. The status of the forward overreaching element changes from an operating to a reset state at the terminal where the current is reversed from an inward to an outward direction, and from a non-operating status to operating status at the other terminal.
Page 62 6 F 2 S 0 8 5 0 TECCB CB-OR & 0.00 - 200.00s R1-CR & ≥ 1 ≥ 1 R2-CR ≥1 ≥ 1 [TERM] "2TERM" & TREBK ≥ 1 20ms 100ms & TSBCT 0.00 – 1.00s Phase S-TRIP & Selection M-TRIP (∗)
Page 63 6 F 2 S 0 8 5 0 The following elements have fixed setting values or their settings are interlinked with other elements listed above. So no setting operation is required. Element Setting Remarks Z4BS Z4 reverse offset reach Fixed to 1.5Ω (Fixed to 7.5Ω) (*1) Z4S θ(*2) Interlinked with Z3S θ...
Page 64 6 F 2 S 0 8 5 0 the actual trip permission signals when either one of the following conditions is established and executes tripping on condition that the overreaching element should operate. • CR1 is lost and only CR2 is received. •...
Page 65 6 F 2 S 0 8 5 0 UVC. Phase selection logic is described in Section 2.3.2.7. TECCB CB-OR & 0.00 - 200.00s R1-CR & ≥ 1 R2-CR ≥1 ≥ 1 ≥ 1 [TERM] "2TERM" & TREBK TSBCT ≥ 1 20ms 0.01-10.00s &...
Page 66 6 F 2 S 0 8 5 0 The following elements have fixed setting values or their settings are interlinked with other elements listed above. So no setting operation is required. Element Setting Remarks Z4BS Z4 reverse offset reach Fixed to 1.5Ω (Fixed to 7.5Ω) (*1) Z4S θ(*2) Interlinked with Z3S θ...
Page 67 6 F 2 S 0 8 5 0 The BOP performs fast tripping for any fault along the whole length of the protected line even if an open terminal exists. A strong infeed terminal operates for all internal faults even if a weak infeed terminal exists.
Page 68 6 F 2 S 0 8 5 0 BRRS Reverse right blinder reach 0.10 - 20.00Ω 0.01Ω 5.10Ω (0.5 - 100.0Ω 0.1Ω 25.5Ω) Z4 reach 0.01 - 100.00Ω 0.01Ω 8.00Ω (0.1 – 500.0Ω 0.1Ω 40.0Ω) BRRG Reverse right blinder reach 0.10 - 20.00Ω...
Page 69 6 F 2 S 0 8 5 0 BRR setting = 1.2 × (BFR setting at remote end) The delayed pick-up timer TCHD is set as follows taking into account the transmission delay time of the blocking signal and a safety margin of 5 ms. TCHD setting = maximum signal transmission delay time(*) + 5ms (*) includes delay time of binary output and binary input for the blocking signal.
Page 70 6 F 2 S 0 8 5 0 Figure 2.3.2.6 shows the scheme logic of the weak infeed trip function. Weak infeed tripping is executed on condition that a trip permission signal has been received (R1-CR=1, R2-CR=1) for the POP, and reception of a trip block signal has stopped (R1-CR=0, R2-CR=0) for the UOP, the undervoltage element UVL (UVLS or UVLG) operates and neither forward overreaching zone 2 or zone 3 nor reverse looking Z4 operates.
Page 71 6 F 2 S 0 8 5 0 (a) Direction of fault current : Before A1 opened : After A1 opened TREBK setting TREBK setting (b) Sequence diagram Figure 2.3.2.7 Current Reversal Phenomenon Figure 2.3.2.8 shows the current reversal logic. The current reversal logic is picked up on condition that reverse looking Z4 has operated and forward overreaching zone 2 or zone 3 have not operated, and the output CRL immediately controls the send signal to a trip block signal and at the same time blocks local tripping.
Page 72 6 F 2 S 0 8 5 0 2.3.2.7 Phase Selection Logic Every command protection has phase selection logic for single-phase tripping. Figure 2.3.2.9 gives details of the phase selection logic displayed in blocks in Figures 2.3.2.1 to 2.3.2.4. Tripping command signal TRIP of each command protection can be classified by the phase selection logic as a single-phase tripping command or a three-phase tripping command.
Page 73 6 F 2 S 0 8 5 0 Signaling Equipment Signal Receiving Trip Logic Level R1-CR1 Inversion Trip Logic Level R1-CR2 Signal Inversion Sending Logic Level Trip Inversion (*) Logic Level S-DEF Trip Inversion (*) (*): By PLC function. Figure 2.3.2.10 Interface with Signaling Equipment 2.3.2.9 Signaling Channel When directional earth fault command protection (see Section 2.4.1) is used with POP, UOP or...
Page 74: Power Swing Blocking
6 F 2 S 0 8 5 0 2.3.3 Power Swing Blocking When a power swing occurs on the power system, the impedance seen by the distance measuring element moves away from the load impedance area into the operating zone of the distance measuring element.
Page 75 6 F 2 S 0 8 5 0 PSBSZ and PSBGZ have same functions and characteristics as shown in Figures 2.3.3.1 and 2.3.3.2, and block tripping of phase and earth fault elements respectively. 593:PSBSOUT-AB 594:PSBSOUT-BC 595:PSBSOUT-CA PSBSOUT TPSB 596:PSBSIN-AB 597:PSBSIN-BC &...
Page 76 6 F 2 S 0 8 5 0 Setting The setting elements necessary for the PSB and their setting ranges are as shown in the table below. Element Range Step Default Remarks PSBSZ PSBS detection zone 0.50 - 15.00Ω 0.01Ω 2.00Ω...
Page 77: Directional Earth Fault Protection
6 F 2 S 0 8 5 0 2.4 Directional Earth Fault Protection For a high-resistance earth fault for which the impedance measuring elements cannot operate, the GRL100 uses a directional earth fault element (DEF) to provide the following protections. •...
Page 78: Directional Earth Fault Command Protection
6 F 2 S 0 8 5 0 2.4.1 Directional Earth Fault Command Protection High-speed directional earth fault command protection is provided using the forward looking directional earth fault element DEFF and reverse looking directional earth fault element DEFR. The signaling channel of DEF command protection can be shared with or separated from distance protection by the scheme switch [CH-DEF].
Page 79 6 F 2 S 0 8 5 0 DEF POP, DEF UOP and DEF PUP scheme logic Figure 2.4.1.3 shows the scheme logic of the DEF POP and DEF UOP. TREBK TDERC ≥1 20ms 0.01 – 10.00s DEFR & ≥1 TDEFC &...
Page 80 6 F 2 S 0 8 5 0 Both functions are used for lines with weak infeed terminals. The echo function allows fast tripping of the terminal on which the DEFF has operated when applied to a line with an open terminal or a weak infeed earth fault current terminal. The scheme logic is shown in Figure 2.4.1.4.
Page 81 6 F 2 S 0 8 5 0 The weak infeed trip function can be disabled by the scheme switch [WKIT]. ECHO1_DEF-1 ≥ 1 DEFWI_TRIP & ECHO1_DEF-2 & WI_TRIP ≥ 1 [WKIT] "ON" DISWI_TRIP Figure 2.4.1.5 Weak Infeed Trip Logic When the signaling channel of DEF POP or DEF UOP is separated from that of distance command protection, the signal S-DEF2 is used for CS and assigned to a user configurable binary output relay (see Section 3.2.2.).
Page 82: Directional Earth Fault Protection
6 F 2 S 0 8 5 0 When operation of the DEFR and non-operation of the DEFF last for 20 ms or more, even if the DEFF operates or the DEFR is reset later, tripping of the local terminal is blocked for the TREBK setting time and transmission of the trip block signal continues for the TSBCT setting time.
Page 83 6 F 2 S 0 8 5 0 Setting The settings necessary for the directional earth fault protection are as follows: Element Range Step Default Remarks DEFF Forward looking DEF DEFFI 0.5 - 5.0 A 0.1 A 1.0 A Residual current (0.10 - 1.00 A 0.01 A 0.2 A) (*)
Page 84: Overcurrent Backup Protection
6 F 2 S 0 8 5 0 2.5 Overcurrent Backup Protection Inverse time and definite time overcurrent protections are provided for phase faults and earth faults respectively. Scheme logic The scheme logic of the overcurrent backup protection is shown in Figures 2.5.1 and 2.5.2. The overcurrent protection issues single-phase tripping signals in the operation of OC and OCI, and issues a three-phase tripping signal BU-TRIP in the operation of EF or EFI element.
Page 85: Inverse Time Overcurrent Protection
6 F 2 S 0 8 5 0 EF TRIP BU-TRIP ≥ ≥ & 0.00 – 10.00s & EF_INST_TP 1634 [EFBT] [EFBTAL] "O N" & EFBT (Alarm ) & "O N" & EF_BLO CK 1591 EFI TRIP & [EFIBT] "NO D", "F", "R" &...
Page 86 6 F 2 S 0 8 5 0 0.5 - 5.0 A 0.1 A 5.0 A Earth fault EFI setting ( 0.10 - 1.00 A 0.01 A 1.00 A) (*) TEFI 0.05 - 1.00 0.01 0.50 EFI time setting TEFIR 0.0 –...
Page 87: Definite Time Overcurrent Protection
6 F 2 S 0 8 5 0 2.5.2 Definite Time Overcurrent Protection In a system in which fault current does not change greatly with the position of the fault, the advantages of the IDMT characteristics are not fully realised. In this case, the definite time overcurrent protection is applied.
Page 88: Transfer Trip Function
6 F 2 S 0 8 5 0 2.6 Transfer Trip Function The GRL100 provides the transfer trip function which receives a trip signal from the remote terminal and outputs a trip command. Two transfer trip commands are provided. The scheme logic is shown in Figure 2.6.1.
Page 89: Out-Of-Step Protection
6 F 2 S 0 8 5 0 2.7 Out-of-step Protection The GRL100 out-of-step protection (OST) operates only when the out-of-step loci cross the protected line and provides optimal power system separation in case of power system step out. The OST compares the phase of the local and remote positive sequence voltages and detects the out-of-step when the difference in the phase angle exceeds 180°.
Page 90 6 F 2 S 0 8 5 0 At terminal A, the terminal voltage V A is taken as a reference voltage. Then, the phase angle of the remote terminal voltage V B changes as shown in Figure 2.7.2. Out-of-step is detected when V B moves from the second quadrant to the third quadrant or vice versa.
Page 91: Thermal Overload Protection
6 F 2 S 0 8 5 0 2.8 Thermal Overload Protection The temperature of electrical plant rises according to an I t function and the thermal overload protection in GRL100 provides a good protection against damage caused by sustained overloading.
Page 92 6 F 2 S 0 8 5 0 is switched onto a system that has previously been loaded to 90% of its capacity. Thermal Curves (Cold Curve - no Thermal Curves (Hot Curve - 90% prior load) prior load) 1000 1000 τ...
Page 93 6 F 2 S 0 8 5 0 Setting The table below shows the setting elements necessary for the thermal overload protection and their setting ranges. Element Range Step Default Remarks 2.0 – 10.0 A 0.1 A 5.0 A Thermal overload setting. (0.40 –...
Page 94: Overvoltage And Undervoltage Protection
6 F 2 S 0 8 5 0 2.9 Overvoltage and Undervoltage Protection 2.9.1 Overvoltage Protection GRL100 provides four independent undervoltage elements with programmable dropoff/pickup(DO/PU) ratio for phase-to-phase voltage input and phase voltage input. OVS1 and OVS2 are used for phase-to-phase voltage input, and OVG1 and OVG2 for phase voltage input.
Page 95 6 F 2 S 0 8 5 0 Overvoltage Inverse Time Curves 1000.000 100.000 10.000 TMS = 10 TMS = 5 TMS = 2 1.000 TMS = 1 0.100 Applied Voltage (x Vs) Figure 2.9.1.1 IDMT Characteristic Scheme Logic Figures 2.9.1.2 (a) and 2.9.1.3 (a) show the scheme logic of the OVS1 and OVG1 overvoltage protection with selective definite time or inverse time characteristic.
Page 96 6 F 2 S 0 8 5 0 TOS1 & & OVS1-AB_TRIP OVS1 BC ≥1 & & OVS1-BC_TRIP ≥1 & & OVS1-CA_TRIP ≥1 0.00 - 300.00s [OVS1EN] ≥1 "DT" & ≥ 1 OVS1_TRIP "IDMT" ≥1 & OVS1_INST_TP 1952 & OVS1_BLOCK 1920 (a) OVS1 Overvoltage Protection TOS2...
Page 97 6 F 2 S 0 8 5 0 Setting The table shows the setting elements necessary for the overvoltage protection and their setting ranges. Element Range Step Default Remarks OVS1 5.0 – 150.0 V 0.1 V 120.0 V OVS1 threshold setting. TOS1I 0.05 –...
Page 98: Undervoltage Protection
6 F 2 S 0 8 5 0 2.9.2 Undervoltage Protection GRL100 provides four independent undervoltage elements for phase and earth fault protection. UVS1 and UVS2 are used for phase fault protection, and UVG1 and UVG2 for earth fault protection. UVS1 and UVG1 are programmable for inverse time (IDMT) or definite time (DT) operation.
Page 99 6 F 2 S 0 8 5 0 Undervoltage Inverse Time Curves 1000.000 100.000 TMS = 10 10.000 TMS = 5 TMS = 2 TMS = 1 1.000 Applied Voltage (x Vs) Figure 2.9.2.1 IDMT Characteristic Scheme Logic Figures 2.9.2.2 (a) and 2.9.2.3 (a) show the scheme logic of the UVS1 and UVG1 undervoltage protection with selective definite time or inverse time characteristic.
Page 100 6 F 2 S 0 8 5 0 “OFF” (not used) when the UV elements are used as fault detectors, and set to “ON” (used) when used for load shedding. Note: The UVSBLK and UVGBLK must be set lower than any other UV setting values. TUS1 &...
Page 101 6 F 2 S 0 8 5 0 TUG2 & & UVG2-A_ALM ≥1 UVG2 B & & UVG2-B_ALM ≥1 [UVG2EN] & & UVG2-C_ALM "ON" ≥1 NON UVGBLK 0.00 - 300.00s ≥ 1 UVG2_ALARM & & UVG2_INST_TP 1965 & 1933 UVG2_BLOCK (b) UVG2 Undervoltage Protection Figure 2.9.2.3 UVG Undervoltage Protection (continued) Setting...
Page 102: Broken Conductor Protection
6 F 2 S 0 8 5 0 2.10 Broken Conductor Protection Series faults or open circuit faults which do not accompany any earth faults or phase faults are caused by broken conductors, breaker contact failure, operation of fuses, or false operation of single-phase switchgear.
Page 103 6 F 2 S 0 8 5 0 Positive phase sequence current I , negative phase sequence current I and zero phase sequence current I at fault location in a single-phase series fault are given by: − Z − E −...
Page 104 6 F 2 S 0 8 5 0 Scheme Logic Figure 2.10.3 shows the scheme logic of the broken conductor protection. BCD element outputs trip signals BCD TRIP through a delayed pick-up timer TBCD. The tripping can be disabled by the scheme switch [BCDEN] or binary input signal BCD BLOCK.
Page 105: Breaker Failure Protection
6 F 2 S 0 8 5 0 2.11 Breaker Failure Protection When a fault remains uncleared due to a breaker failure, the breaker failure protection (BFP) clears the fault by backtripping the adjacent breakers. If the current continues to flow following the output of a trip command, the BFP judges it as a breaker failure.
Page 106 6 F 2 S 0 8 5 0 start-up. Tripping of the adjacent breakers can be blocked with the scheme switch [BF2]. There are two kinds of mode of the retrip signal to the original breaker RETRIP: the mode in which RETRIP is controlled by the overcurrent element OCBF, and the direct trip mode in which RETRIP is not controlled.
Page 107 6 F 2 S 0 8 5 0 Setting The setting elements necessary for the breaker failure protection and its setting ranges are as follows: Element Range Step Default Remarks − OCBF 0.1A 4.0A Overcurrent setting 10.0A − 0.1A 0.8A) (*) (0.1 2.0A TBF1...
Page 108: Switch-Onto-Fault Protection
6 F 2 S 0 8 5 0 2.12 Switch-Onto-Fault Protection The current differential protection can trip against a switch-onto-fault. However, the distance protection cannot operate against a switch-onto-fault. Therefore, the switch-onto-fault protection should be applied when the current differential protection is out of service. In order to quickly remove a fault which may occur when a faulted line or busbar is energized, the switch-onto-fault (SOTF) protection functions for a certain period after the circuit breaker is closed.
Page 109 6 F 2 S 0 8 5 0 Setting The setting elements necessary for the SOTF protection and their setting ranges are as follows: Element Range Step Default Remarks 2.0 - 15.0 A 0.1 A 6.0 A Overcurrent setting ( 0.4 - 3.0 A 0.1 A 1.2 A) (*) TSOTF...
Page 110: Stub Protection
6 F 2 S 0 8 5 0 2.13 Stub Protection In the case of a busbar with a one-and-a-half breaker arrangement as shown in Figure 2.13.1.1, the differential protection will operate and will trip the breakers at both terminals, and the distance protection will not operate.
Page 111: Setting
6 F 2 S 0 8 5 0 Scheme logic The scheme logic for the stub protection is shown in Figure 2.13.2.1. The stub protection performs three-phase tripping on the condition that the line disconnector is open (DS_N/O_CONT = 0) and the overcurrent element has operated (OCH = 1). CB condition (STUB_CB) can be added by using programmable BI function (PLC function).
Page 112: Tripping Output
6 F 2 S 0 8 5 0 2.14 Tripping Output Figure 2.14.1 shows the tripping logic. Segregated-phase differential protection outputs per-phase-based tripping signals such as DIF.FS-A_TP, DIF.FS-B_TP and DIF.FS-C_TP, etc. Zero-phase differential protection, thermal overload protection, earth fault backup protection and out-of-step protection output three-phase tripping signals DIFG.FS_TRIP, THM-T, BU-TRIP and OSTT.
Page 113 6 F 2 S 0 8 5 0 In the following cases, per-phase-based tripping is converted to three-phase tripping. • When autoreclose is prohibited by a binary input signal (ARC−BLK = 1) • When the autoreclose mode selection switch [ARC-M] is set to "EXT3P" •...
Page 114: Autoreclose
6 F 2 S 0 8 5 0 2.15 Autoreclose 2.15.1 Application Most faults that occur on high-voltage or extra-high-voltage overhead lines are transient faults caused by lightning. If a transient fault occurs, the circuit breaker is tripped to isolate the fault, and then reclosed following a time delay to ensure that the hot gases caused by the fault arc have de-ionized.
Page 115 6 F 2 S 0 8 5 0 This reclosing mode is simply expressed as "SPAR & TPAR" in the following descriptions. Multi-phase autoreclose: This autoreclose mode can be applied to double-circuit lines. In this mode, only the faulted phases are tripped and reclosed when the terminals of double-circuit lines are interconnected during the dead time through at least two or three different phases.
Page 116: Scheme Logic
6 F 2 S 0 8 5 0 2.15.2 Scheme Logic 2.15.2.1 One-breaker Autoreclose Figure 2.15.2.1 shows the simplified scheme logic for the single-shot autoreclose. Autoreclose for a further fault incident is available when the circuit breaker is closed and ready for autoreclose (CB-RDY=1), the reclosing mode selection switch [ARC-M] is set to "SPAR", "TPAR", "SPAR &...
Page 117 6 F 2 S 0 8 5 0 [ARC-M] ARC1 READY TRDY1 TSPR1 "SPAR", "TPAR", "SPAR & TPAR", & "MPAR2", "MPAR3" & & & (For Leader CB) ≥1 Single-phase trip 1571 CB1_READY & 0.1 - 10s 5-300s 0.01-10s ≥1 [ARC-M] ＆...
Page 118 6 F 2 S 0 8 5 0 is assigned by the PLC as a default setting.) If [ARC-M] is set to "SPAR" or "Disable", autoreclose is not activated. In "SPAR & TPAR" or "TPAR", if the operating conditions of the voltage and synchronism check elements assigned by the PLC as default are not satisfied during three-phase reclosing, the TRR is then picked up and reclosing is reset.
Page 119 6 F 2 S 0 8 5 0 Voltage Mode Busbar voltage (V B ) live live dead dead Line voltage (V L ) live dead live dead The synchronism check is performed for voltage mode 1 while the voltage check is performed for voltage modes 2 and 3.
Page 120 6 F 2 S 0 8 5 0 the scheme switch. When [VCHK] is set to "SYN", three-phase autoreclose is performed only with the synchronism check. When [VCHK] is set to "OFF", three-phase autoreclose is performed without the voltage and synchronism check.
Page 121 6 F 2 S 0 8 5 0 Autoreclosing requirement Using PLC function, various reclose requirements can be designed. In Figure 2.15.2.1, a reclose requirement for "SPAR", "TPAR", "SPAR&TPAR" or "MPAR" can be respectively assigned to the following signals by PLC: "SPAR": [SPR.L-REQ] "TPAR":...
Page 122 6 F 2 S 0 8 5 0 selected by the scheme switch [MA-NOLK] setting. Setting of [MA-NOLK] Operation Final Trip Three-phase autoreclose Single- and Three-phase autoreclose If “FT” is selected and the LINK is not satisfied, the final trip FT is performed. If “T” selected, the three-phase autoreclose is performed.
Page 123 6 F 2 S 0 8 5 0 Permanent fault When reclose-onto-a-fault is activated when a permanent fault exists, three-phase final tripping is performed. However, this operation is performed only in the single-shot autoreclose mode. In the multi-shot autoreclose mode, reclosing is retried as shown below, for multi-shot autoreclosing.
Page 124 6 F 2 S 0 8 5 0 When the three-shot mode is selected for the multi-shot mode, autoreclose is retried again after the above tripping occurs. At this time, the TS3 and TS3R are started. The third shot autoreclose is performed only when the voltage and synchronism check element operates after the period of time set on the TS3 has elapsed.
Page 125 6 F 2 S 0 8 5 0 Autoreclose is not activated when an autoreclose prohibiting binary input signal is applied at the local or remote terminal. • ARC_BLOCK signal common for leader and follower CB • ARC_BLOCK1 signal for leader CB •...
Page 126 6 F 2 S 0 8 5 0 Autoreclose start requirement Using PLC function, various autoreclose start requirements can be designed. In Figure 2.15.2.8, a reclose start requirement for "SPAR", "TPAR", "SPAR&TPAR" or "MPAR" can be respectively assigned to the following signals by PLC: "SPAR": [SPR.F-ST.REQ] "TPAR":...
Page 127 6 F 2 S 0 8 5 0 [ARC-M] ARC2 READY TRDY2 TSPR2 "SPAR", "TPAR", "SPAR & TPAR", & "MPAR2", "MPAR3" ≥1 & & & & (For Follower CB) ≥1 Single-phase trip 0.1 - 10s 1572 CB2_READY & 5-300s 0.01-10s ≥1 [ARC-M] SPR.F-REQ...
Page 128 6 F 2 S 0 8 5 0 Figure 2.15.2.9 shows the energizing control scheme of the two circuit breakers in the three-phase autoreclose. OVB and UVB are the overvoltage and undervoltage detectors of busbar voltage V B in Figure 2.15.2.7. OVL1 and UVL1 are likewise the overvoltage and undervoltage detectors of line voltage V L1 .
Page 129 6 F 2 S 0 8 5 0 The voltage and synchronism check is performed as shown below according to the [ARC-CB] settings: Setting of [ARC-CB] Voltage and synchronism check A voltage and synchronism check is performed using voltages V B and V L1 . ONE or O1 A voltage and synchronism check is performed using voltages V L1 and V L2 .
Page 130 6 F 2 S 0 8 5 0 When [ARC-CCB] is set to "MPAR", the center breaker is also reclosed in the multi-phase autoreclose mode at the time of the TMPR2 setting. When [ARC-CCB] is set to "OFF", autoreclose does not start for the center breaker. The scheme switch [ARC-CCB] used in single-phase autoreclose and single- and three-phase autoreclose is invalid when multi-phase autoreclose is selected as a reclose mode.
Page 131 6 F 2 S 0 8 5 0 Element Range Step Default Remarks TS2R 5.0 – 300.0s 0.1s 30.0s Second shot reset time TS3R 5.0 – 300.0s 0.1s 30.0s Third shot reset time TS4R 5.0 – 300.0s 0.1s 30.0s Fourth shot reset time TSUC 0.1 –...
Page 132: Autoreclose Output Signals
6 F 2 S 0 8 5 0 In three-phase autoreclose, if the voltage and synchronism check does not operate within the period of time set on the on-delay timer TRR, which is started at the same time as the dead time counter TTPR1 is started, reclosing is not performed and three-phase autoreclose is reset to its initial state.
Page 133: Characteristics Of Measuring Elements
6 F 2 S 0 8 5 0 2.16 Characteristics of Measuring Elements 2.16.1 Segregated-phase Current Differential Element DIF and DIFSV The segregated-phase current differential elements DIF have dual percentage restraint characteristics. Figure 2.16.1.1 shows the characteristics on the differential current (Id) and restraining current (Ir) plane.
Page 134: Zero-Phase Current Differential Element Difg
6 F 2 S 0 8 5 0 I out I out = I in DIFI2 Operating Zone DIFI1 I in Figure 2.16.1.2 Segregated-phase Current Differential Element (Iin-Iout Plane) Characteristic A is expressed by the following equation: I out ≤ (5/7)(I in - DIFI1) Characteristic B is expressed by the following equation: I out ≤...
Page 135: Distance Measuring Elements Z1, Z2, Z3, Z4, Zr And Psb
6 F 2 S 0 8 5 0 I d ≥ (1/6)I r + (5/6)DIFGI where DIFGI is a setting and defines the minimum residual fault current. 2.16.3 Distance Measuring Elements Z1, Z2, Z3, Z4, ZR and PSB The GRL100 provides eight distance measuring zones with mho-based characteristics or quadrilateral characteristics.
Page 136 6 F 2 S 0 8 5 0 BFR1,2,3 BFR1,2,3 a) Phase fault element (b) Earth fault element Figure 2.16.3.2 Quadrilateral Four Zone Characteristics (b) Quadrilateral characteristic (a) Mho-based characteristic Figure 2.16.3.3 ZRS Characteristic Offset Reach for Backup Tripping Zone 1 and zone 2 can trip on condition that zone 3 has operated, in both characteristics. The power swing blocking elements (PSBS and PSBG) are a combination of the reactance element and blinder element as shown in Figure 2.16.3.4.
Page 137 6 F 2 S 0 8 5 0 Mho element The characteristic of the mho element is obtained by comparing the phases between signals S1 and S2. If the angle between these signals is 90° or more, it means that the fault is within the mho characteristic, and the mho element will operate.
Page 138 6 F 2 S 0 8 5 0 The polarizing voltage for the phase fault mho element has a memory action for the close-up three-phase fault. V a and V bc mentioned above are the memorized pre-fault voltages. This memory is retained for two cycles after a fault occurs. The polarizing voltage for the earth fault mho element has no memory action.
Page 139 6 F 2 S 0 8 5 0 S1 = V − IZs −IZso S2 = V + IZso Figure 2.16.3.7 Offset Mho Element Reactance element The reactance element of Z1 has a composite characteristic with the two straight lines, one is parallel and the other is gradual descent toward the R-axis as shown in Figure 2.16.3.8.
Page 140 6 F 2 S 0 8 5 0 θ 1 90 ° θ 2 (b) Z2 and ZF (a) Z1 and Z1X Figure 2.16.3.8 Reactance Element The setting of θ1(Z1θ1) and θ2(Z1θ2) are set to the following: Z1θ2 < tan ( X / R Where, X = reactance component...
Page 141 6 F 2 S 0 8 5 0 R = resistance component of measured impedance X = reactance component of measured impedance Rs = reach setting The characteristic BFL is obtained by the following equation. Polarizing voltage employed is the same as employed for mho element.
Page 142 6 F 2 S 0 8 5 0 The characteristic of the directional element is obtained by the following equation. I･Vp cos ( θ − φ ) ≥ 0 where, I = fault current Vp = polarizing voltage φ = lagging angle of I to Vp θ...
Page 143: Phase Selection Element Uvc
6 F 2 S 0 8 5 0 θ Figure 2.16.3.12 Offset Directional Element The characteristic of the offset directional element is obtained by the following equation. X + R tanθ ≦ Z where, X = reactance component of measured impedance R = resistance component of measured impedance θ...
Page 144: Directional Earth Fault Elements Deff And Defr
6 F 2 S 0 8 5 0 where, V = fault voltage I = fault current θ = angle difference between V and IZs Zs = impedance setting Vs = undervoltage setting When the value and angle of Zs are set to those similar to the impedance of the protected line, the phase selection element will detect all single-phase earth faults that have occurred on the protected line even with a strong source and the voltage drop is small.
Page 145 6 F 2 S 0 8 5 0 = residual voltage −3V = polarizing voltage φ = lagging angle of (3I ) to (−3V θ = characteristic angle setting (lagging to polarizing voltage) I sf , I sr = current setting V sf , V sr = voltage setting 2.16.6 Inverse Definite Minimum Time (IDMT) Overcurrent Element OCI and EFI As shown in Figure 2.16.6.1, the IDMT element has one long time inverse characteristic and three...
Page 146: Thermal Overload Element
6 F 2 S 0 8 5 0 Long Time Inverse t = T × (I/Is)−1 Standard Inverse 0.14 t = T × 0.02 − 1 (I/Is) Very Inverse 13.5 t = T × (I/Is) − 1 Extremely Inverse t = T × −...
Page 147 6 F 2 S 0 8 5 0 2.16.9 Voltage and Synchronism Check Elements OVL, UVL, OVB, UVB and SYN The voltage check and synchronism check elements are used for autoreclose. The output of the voltage check element is used to check whether the line and busbar are dead or live.
Page 148: Current Change Detection Elements Ocd, Ocd1 And Efd
6 F 2 S 0 8 5 0 detected maximum slip cycle is determined by the following equation: SY1 θ 180° × T SYN1 where, f = slip cycle SY1θ = phase difference setting (degree) = setting of synchronism check timer (second) SYN1 2.16.10 Current change detection elements OCD, OCD1 and EFD As shown in Figure 2.16.10.1, the current change detection element operates if the vectorial...
Page 149 6 F 2 S 0 8 5 0 Residual overcurrent detector EF and EFL This detector measures a residual current and its sensitivity can be set. The EF is used for backup protection. The EFL is used for the earth fault detection of distance protection and VT failure supervision.
Page 150: Fault Locator
6 F 2 S 0 8 5 0 2.17 Fault Locator 2.17.1 Application GRL100 provides the following two type fault locators. Fault location using the local and remote end data (when current differential protection is applied.) (∗) Fault location using the only local end data (when current differential protection is not applied.) Note (∗): The fault location using the local and remote end data is applied.
Page 151: Distance To Fault Calculation
6 F 2 S 0 8 5 0 “∗OB”, “∗OJ”, and “∗NC” and may display after the location result. These mean the followings: ∗OB: Fault point is over the boundary. ∗OJ: Fault point is over the junction in three-terminal line application. ∗NC: Fault calculation has not converged.
Page 152 6 F 2 S 0 8 5 0 case of three-terminal application, the distance measurement equation varies according to which zone the fault is in, this side or beyond the junction. Terminal A measures the distance using Equations (5), (6) or (7). Terminal A Junction Terminal B...
Page 153 6 F 2 S 0 8 5 0 I B1 , I B2 and I B0 = positive, negative and zero sequence current at terminal B I d1 ,I d2 and I d0 = positive, negative and zero sequence differential current Z 11 , Z 12 and Z 10 are expressed by the following equations assuming that Z ab = Z ba , Z bc = Z cb and Z ca = Z ac : Z 11 = (Z aa + Z bb + Z cc - Z ab - Z bc - Z ca )/3...
Page 154 6 F 2 S 0 8 5 0 Distance calculation for earth fault (in the case of A-phase earth fault) ⋅ × ") α ⋅ α ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ α ⋅ ⋅ ⋅ ⋅ ⋅ × α "...
Page 155: Setting
6 F 2 S 0 8 5 0 2.17.5 Setting Fault location using the local and remote end data The setting items necessary for the fault location and their setting ranges are shown in the table below. When setting the line impedance, one of the following methods can be selected. Inputting phase impedances: The self-impedances Z aa , Z bb and Z cc and mutual impedances Z ab , Z bc and Z ca are input individually using the expression of the resistive components R ∗∗...
Page 156 6 F 2 S 0 8 5 0 Item Range Step Default Remarks Section 2 2R 1 0.00 - 199.99 Ω 0.10 Ω 0.20 Ω (0.0 - 999.9 Ω 0.1 Ω 1.0 Ω) (*) 2X 1 0.00 - 199.99 Ω 0.10 Ω...
Page 157 6 F 2 S 0 8 5 0 Fault location using the only local end data The setting items necessary for the fault location and their setting ranges are shown in the table below. The settings of R 0m and X 0m are only required for the double circuit lines. The reactance and resistance values are input in expressions on the secondary side of CT and VT.
Page 158 6 F 2 S 0 8 5 0 Item Range Step Default Remarks Section 1 0.0 - 199.99 Ω 0.01 Ω 0.20Ω (0.0 - 999.9 Ω 0.1 Ω 1.0Ω) (*) 0.0 - 199.99 Ω 0.01 Ω 2.00Ω (0.0 - 999.9 Ω 0.1 Ω...
Page 159: Technical Description
6 F 2 S 0 8 5 0 3. Technical Description 3.1 Hardware Description 3.1.1 Outline of Hardware Modules The GRL100 models are classified into two types by their case size. Models 701 and 711 have type A cases, while models 702 and 712 have type B cases. Case outlines are shown in Appendix The hardware structures of the models are shown in Figure 3.1.1.1 and Figure 3.1.1.2.
Page 160 6 F 2 S 0 8 5 0 IO#2 IO#4 IO#1 IO#3 Note: IO#1 is IO1 module. IO#2, IO#3 and IO#4 are IO2, IO5 and IO4 module respectively. Figure 3.1.1.2 Hardware Structure (Model: 702, 712) The correspondence between each model and module used is as follows: Model 701, 711 702, 712...
Page 161 6 F 2 S 0 8 5 0 Telecommunication system Binary I/O Module (IO#1)(*3) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15 Binary input MPU2 CT×4 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1 ×6...
Page 162: Transformer Module
6 F 2 S 0 8 5 0 3.1.2 Transformer Module The transformer module (VCT module) provides isolation between the internal and external AC circuits through an auxiliary transformer and transforms the magnitude of AC input signals to suit the electronic circuits. The AC input signals are as follows: •...
Page 163: Signal Processing And Communication Module
6 F 2 S 0 8 5 0 3.1.3 Signal Processing and Communication Module The signal processing and communication module (SPM) incorporates a signal processing circuit and a communication control circuit. Figure 3.1.3.1 shows the block diagram. The telecommunication control circuit is incorporated in the sub-module GCOM. The signal processing circuit consists of an analog filter, multiplexer, analog to digital (A/D) converter, main processing unit (MPU1) and memories (RAM and ROM), and executes all kinds of processing including protection, measurement, recording and display.
Page 164: Binary Input And Output Module
6 F 2 S 0 8 5 0 3.1.4 Binary Input and Output Module There are four types of binary input and output module (IO module): These modules are used depending on the model (see Section 3.1.1). 3.1.4.1 IO1 Module IO1 provides a DC/DC converter, binary inputs and binary outputs for tripping.
Page 165 6 F 2 S 0 8 5 0 3.1.4.2 IO2 Module As shown in Figure 3.1.4.2, the IO2 module incorporates 3 photo-coupler circuits (BI) for binary input signals, 14 auxiliary relays (13 BOs and FAIL) for binary output signals and an RS485 transceiver.
Page 166 6 F 2 S 0 8 5 0 3.1.4.3 IO3 and IO4 Modules The IO3 and IO4 modules are used to increase the number of binary outputs. The IO3 module incorporates 10 auxiliary relays (BO) for binary outputs. The IO4 module incorporates 14 auxiliary relays (BO) for binary outputs and 3 photo-coupler circuits (BI).
Page 167 6 F 2 S 0 8 5 0 3.1.4.4 IO5 and IO6 Modules The IO5 and IO6 modules are used to increase the number of binary inputs and outputs. The IO5 module incorporates 10 photo-coupler circuits (BI) for binary inputs and 10 auxiliary relays (BO) for binary outputs.
Page 168: Human Machine Interface (Hmi) Module
6 F 2 S 0 8 5 0 3.1.5 Human Machine Interface (HMI) Module The operator can access the GRL100 via the human machine interface (HMI) module. As shown in Figure 3.1.5.1, the HMI module has a liquid crystal display (LCD), light emitting diodes (LED), view and reset keys, operation keys, monitoring jacks and an RS232C connector on the front panel.
Page 169 6 F 2 S 0 8 5 0 LINE DIFFERENTIAL PROTECTION Liquid crystal display Light emitting diode GRL100 701B-31-10 100/110/115/120V Operation keys Monitoring jack • RS232C connector Figure 3.1.5.1 Front Panel  168 ...
Page 170: Input And Output Signals
6 F 2 S 0 8 5 0 3.2 Input and Output Signals 3.2.1 Input Signals AC input signals Table 3.2.1.1 shows the AC input signals necessary for the GRL100-700 series and their respective input terminal numbers. The AC input signals are input via terminal block TB1. See Appendix G for external connections.
Page 171: Cb1_Cont-A
6 F 2 S 0 8 5 0 Further, all binary input functions are programmable by PLC (Programmable Logic Controller) function. The default setting of the binary input is shown in Table 3.2.1.2. Table 3.2.1.2 Binary Input Signals Module Setting BI No.
Page 172: Cb1_Cont-C
6 F 2 S 0 8 5 0 The binary input signals of circuit breaker auxiliary contact are transformed as shown in Figure 3.2.1.2 to use in the scheme logic. BI1_command CB1_CONT-A 1536 & BI2_command CB1_CONT-B 1537 CB-AND BI3_command CB1_CONT-C 1538 [Default setting] ≥1...
Page 173: Binary Output Signals
6 F 2 S 0 8 5 0 3.2.2 Binary Output Signals The number of binary output signals and their output terminals vary depending on the relay model. For all models, all outputs except the tripping command and relay failure signal can be configured.
Page 174: Automatic Supervision
6 F 2 S 0 8 5 0 3.3 Automatic Supervision 3.3.1 Basic Concept of Supervision Though the protection system is in the non-operating state under normal conditions, it is waiting for a power system fault to occur at any time and must operate for faults without fail. Therefore, the automatic supervision function, which checks the health of the protection system during normal operation, plays an important role.
Page 175: Ct Circuit Current Monitoring
6 F 2 S 0 8 5 0 monitoring with the introduction of the residual circuit current can be performed with higher sensitivity than negative sequence monitoring. A/D accuracy checking An analog reference voltage is input to a prescribed channel in the analog-to-digital (A/D) converter, and the system checks that the data after A/D conversion is within the prescribed range and that the A/D conversion characteristics are correct.
Page 176: Ct Circuit Failure Detection
6 F 2 S 0 8 5 0 3.3.4 CT Circuit Failure Detection If a failure occurs in a CT circuit, the differential elements may operate incorrectly. GRL100 incorporates a CT failure detection function (CTF) against such incorrect operation. When the CTF detects a CT circuit failure, it can block the DIF trip.
Page 177 6 F 2 S 0 8 5 0 supervision function (VTFS) as a measure against such incorrect operation. When the VTFS detects a VT failure, it blocks the following voltage dependent protections instantaneously. In 10 seconds, it displays the VT failure and outputs an alarm. •...
Page 178: Differential Current (Id) Monitoring
6 F 2 S 0 8 5 0 CB-AND VTF1_ALARM 873:UVFGOR UVFS ≥1 874:UVFSOR UVFG & 605:OCD1-A ≥1 VTF1 606:OCD1-B 100ms 607:OCD1-C OCD1 891:VTF-ALARM VTF_ALARM ≥1 [VTF1EN] "ON", “OPT-ON” VTF2_ALARM 0.2s 350:OVG & ≥1 VTF2 634:EFL 100ms 888:VTF [VTF2EN] NON VTF ≥1 &...
Page 179: Telecommunication Channel Monitoring
6 F 2 S 0 8 5 0 3.3.7 Telecommunication Channel Monitoring Signal channel monitoring for current differential protection The telecommunication channel is monitored at each terminal by employing a cyclic redundancy check and fixed bit check of the received data. The check is carried out for every sampling. If a data failure occurs between the local terminal and remote terminal 1 and lasts for ten seconds, failure alarms "Com1 fail"...
Page 180: Failure Alarms
6 F 2 S 0 8 5 0 simultaneously in the open or closed state for the prescribed period. The monitoring is blocked by setting the scheme switch [LSSV] to OFF. The default setting of [LSSV] is OFF to prevent a false failure detection when the disconnector contacts are not introduced.
Page 181: Trip Blocking
6 F 2 S 0 8 5 0 ⋅⋅⋅ ⋅⋅⋅ (1) There are various messages such as " err" and " fail" as shown in the table in Section 6.7.2. (2) The LED is on when the scheme switch [SVCNT] is set to "ALM", and off when "ALM & BLK"...
Page 182: Recording Function
6 F 2 S 0 8 5 0 3.4 Recording Function The GRL100 is provided with the following recording functions: Fault recording Event recording Disturbance recording These records are displayed on the LCD of the relay front panel or on the local or remote PC. 3.4.1 Fault Recording Fault recording is started by a tripping command of the GRL100, a tripping command of the...
Page 183: Event Recording
6 F 2 S 0 8 5 0 - Magnitude and phase angle of phase voltage (V a , V b , V c ) - Magnitude and phase angle of phase current at the local terminal (I a , I b , I c ) - Magnitude and phase angle of phase voltage for autoreclose (V s1 , V s2 ) - Magnitude and phase angle of symmetrical component voltage (V 1 , V 2 , V 0 ) - Magnitude and phase angle of symmetrical component current at the local terminal (I 1 , I 2 , I 0 )
Page 184 6 F 2 S 0 8 5 0 I da , I db , I dc , I d0 , remote terminal 1: I a1 , I b1 , I c1 , 3I 01 remote terminal 2: I a2 , I b2 , I c2 , 3I 02 ), 32 binary signals and the dates and times at which recording started.
Page 185: Metering Function
6 F 2 S 0 8 5 0 3.5 Metering Function The GRL100 performs continuous measurement of the analog input quantities. The measurement data shown below is updated every second and displayed on the LCD of the relay front panel or on the local or remote PC. - Magnitude and phase angle of phase voltage (V a , V b , V c ) - Magnitude and phase angle of phase current at the local terminal (I a , I b , I c ) - Magnitude and phase angle of phase voltage for autoreclose (V s1 , V s2 )
Page 186: User Interface
6 F 2 S 0 8 5 0 4. User Interface 4.1 Outline of User Interface The user can access the relay from the front panel. Local communication with the relay is also possible using a personal computer (PC) via an RS232C port.
Page 187 6 F 2 S 0 8 5 0 Operation keys The operation keys are used to display records, status, and set values on the LCD, as well as to input or change set values. The function of each key is as follows: 0-9, −...
Page 188: Communication Ports
6 F 2 S 0 8 5 0 4.1.2 Communication Ports The following interfaces are provided as communication ports: • RS232C port • RS485, Fibre optic or Ethernet LAN port for serial communication • IRIG-B port • Interface port for telecommunication link RS232C port This connector is a standard 9-way D-type connector for serial port RS232C transmission and is mounted on the front panel.
Page 189 6 F 2 S 0 8 5 0 36-pin terminal block 20-pin terminal block ST, LC or Duplex LC type connector, or D-sub connector for Telecommunication IRIG BNC connector RS485 connection terminal RJ45 connector (option) Relay rear view (Case Type A) ST, LC or Duplex LC type connector, or D-sub connector for...
Page 190: Operation Of The User Interface
6 F 2 S 0 8 5 0 4.2 Operation of the User Interface The user can access such functions as recording, measurement, relay setting and testing with the LCD display and operation keys. Note: LCD screens depend on the relay model and the scheme switch setting. Therefore, LCD screens described in this section are samples of typical model.
Page 191 6 F 2 S 0 8 5 0 Press the VIEW key to scroll the LCD screen to read the rest of messages. Press the RESET key to turn off the LEDs and LCD display. Notes: 1) When configurable LEDs (LED1 through LED4) are assigned to latch signals by trigger of RESET tripping, press the key more than 3s until the LCD screens relight.
Page 192 6 F 2 S 0 8 5 0 "Latest fault" screens. Press the RESET key to turn off the LEDs and LCD display. However, if the failure continues, the "ALARM" LED remains lit. After recovery from a failure, the "ALARM" LED and "Auto-supervision" display turn off automatically.
Page 193: Relay Menu
6 F 2 S 0 8 5 0 4.2.2 Relay Menu Figure 4.2.2.1 shows the menu hierarchy in the GRL100. The menu has five sub-menus, "Record", "Status", "Setting (view)", "Setting (change)", and "Test". For details of the menu hierarchy, see Appendix E. Menu Record Fault record...
Page 194 6 F 2 S 0 8 5 0 Record In the "Record" menu, the fault records, event records and disturbance records can be displayed or erased. Furthermore, autoreclose function can be displayed in counter form or reset. Status The "Status" menu displays the power system quantities, binary input and output status, relay measuring element status, signal source for time synchronization (IRIG-B, RSM, IEC or GPS), terminal condition (In- or out-of-service) and adjusts the clock.
Page 195: Displaying Records
6 F 2 S 0 8 5 0 S c h e m e s w i t c h A R C - E X T 0 = O f f 1 = O n A R C - B U 0 = O f f 1 = O n A R C D I F G...
Page 196 6 F 2 S 0 8 5 0 ／４Ｆａｕｌｔｒｅｃｏｒｄ＃１３／６２ Date and Time １６／Ｏｃｔ／１９９７１８：１３：５７．０３１ Fault phase ＰｈａｓｅＡＢＣＮＴｒｉｐＡＢＣ Tripping Tripping mode phase ＤＩＦ Fault location ＊＊＊．＊ｋｍ（Ｊｕｎｃｔｉｏｎ－Ｒｅｍｏｔｅ１）＊ＯＢ＊ＮＣ＊ＣＦＰｒｅｆａｕｌｔｖａｌｕｅｓＶａ＊＊＊．＊ｋＶ＊＊＊．＊°...
Page 197 6 F 2 S 0 8 5 0 Note: I∗1 and I∗2 are phase currents of remote terminal 1 and remote terminal 2. V11 and V12 are symmetrical component voltages of remote terminal 1 and remote terminal 2. The lines which are not displayed in the window can be displayed by pressing the keys.
Page 198 6 F 2 S 0 8 5 0 E v e n t r e c o r d C l e a r a l l e v e n t r e c o r d s ? E N T E R = Y e s C A N C E L = N o •...
Page 199: Displaying The Status
6 F 2 S 0 8 5 0 • Select 1 (=Record) on the top "MENU" screen to display the "Record" sub-menu. • Select 4 (=Autoreclose count) to display the "Autoreclose count" screen. c o u n t e c l o s e 2 = R e s e t •...
Page 200 6 F 2 S 0 8 5 0 S t a t u s 1 = M e t e r i n g 2 = B i n a r y I / O 3 = R e l a y e l e m e n t 4 = T i m e s y n c...
Page 201 6 F 2 S 0 8 5 0 4.2.4.2 Displaying the Status of Binary Inputs and Outputs To display the binary input and output status, do the following: • Select 2 (=Status) on the top "MENU" screen to display the "Status" screen. •...
Page 202 6 F 2 S 0 8 5 0 R e l a l e m e n t D I F , D I F G [ 0 0 0 O S T [ 0 0 0 0 0 0 C B F [ 0 0 0 O C ,...
Page 203 6 F 2 S 0 8 5 0 — — — — — — UVS1 UVS2 UVSBLK — — — — — — UVG1 UVG2 UVGBLK — — — — — — — — CTFID CTFUV — — — — —...
Page 204 6 F 2 S 0 8 5 0 The asterisk on the far left shows that the inner clock is synchronized with the marked source clock. If the marked source clock is inactive, the inner clock runs locally. For the setting time synchronization, see Section 4.2.6.6. 4.2.4.5 Adjusting the Time To adjust the clock when the internal clock is running locally, do the following:...
Page 205: Viewing The Settings
6 F 2 S 0 8 5 0 ／２ＤｉｒｅｃｔｉｏｎＰｈａｓｅＡ：ＦｏｒｗａｒｄＰｈａｓｅＢ：ＦｏｒｗａｒｄＰｈａｓｅＣ： ______________ Note: If the load current is less than 0.04xIn, the direction is expressed as “----“. The BFL element is used to detect the direction of load current and shared with blinder. (See Figure 2.3.1.12.) 4.2.5 Viewing the Settings...
Page 206: Changing The Settings
6 F 2 S 0 8 5 0 4.2.6 Changing the Settings The "Setting (change)" sub-menu is used to make or change settings for the following items: Password Description Communication Recording Status Protection Binary input Binary output All of the above settings except the password can be seen using the "Setting (view)" sub-menu. 4.2.6.1 Setting Method There are three setting methods as follows:...
Page 207 6 F 2 S 0 8 5 0 To correct the entered number, do the followings. • If it is before pressing the ENTER key, press the CANCEL key and enter the new number. • If it is after pressing the ENTER key, move the cursor to the correcting line by pressing the keys and enter the new number.
Page 208 6 F 2 S 0 8 5 0 ／６Ｐｒｏｔｅｃｔｉｏｎｅｌｅｍｅｎｔ１／＊＊ＤＩＦＩ１（０．５０－１０．００）：１．００＿ＡＤＩＦＩ２（３．０－１２０．０）：２．０ＡＤＩＦＧＩ（０．２５－５．００）：０．５０ＡＤＩＦＩＣ（０．００－５．００）：１．００ＡＶｎ（１００－...
Page 209 6 F 2 S 0 8 5 0 P l a n t n a m e ← → A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ( ) [ ] @ _ ←...
Page 210 6 F 2 S 0 8 5 0 • For confirmation, enter the same 4-digit number in the brackets after "Retype new password" and press the ENTER key. • Press the END key to display the confirmation screen. If the retyped number is different from that first entered, the following message is displayed on the bottom of the "Password"...
Page 211 6 F 2 S 0 8 5 0 D e s c r p t i o ← → A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ( ) [ ] @ ←...
Page 212 6 F 2 S 0 8 5 0 • Press 2 (=Switch) on the "Communication" screen to select the protocol and the RS232C transmission speed (baud rate), etc., of the RSM or IEC60870-5-103. S w i t c h 1 /4 P R T C 1 = H D L C 2 = I E...
Page 213 6 F 2 S 0 8 5 0 Setting the event recording • Press 2 (=Event record) to display the "Event record" screen. E v e n t r e c o r d 1 / 1 2 9 B I T R N 1 2 8 ) : 1 2 8 E V 1...
Page 214 6 F 2 S 0 8 5 0 • Press 3 (=Binary signal) on the "Disturbance record" screen to display the "Binary signal" screen. / ４ B i n a r y s i g n a l 1 / 3 2 S I G 1 3 0 7 1 ) : S I G 2...
Page 215 6 F 2 S 0 8 5 0 Setting the time synchronization The calendar clock can run locally or be synchronized with external IRIG-B time standard signal, RSM clock, IEC60870-5-103 or GPS. This is selected by setting as follows: • Press 2 (=Time synchronization) to display the "Time synchronization" screen. / 3 T i m e s y n c h r o n i z a t i o n 1 / 1 S y n c...
Page 216 6 F 2 S 0 8 5 0 • Press 2 (=Change setting) to display the "Change setting" screen. C h a n g e s e t t i n g ( A c t i v e g r o u p = 1 = G r o u p 1 2 = G r o u p 2 3 = G r o u p 3...
Page 217 6 F 2 S 0 8 5 0 S e t t i n g p e d a n ( G r o u p 1 = S y m m e t r i c a l i m p e d a n 2 = P h a s e e d a C u r r e n t...
Page 218 6 F 2 S 0 8 5 0 L i n e Ω 1Xaa ( 0.00 - 199.99) : 10.00_ Ω 1Xbb ( 0.00 - 199.99) : 10.00 Ω 1Xcc ( 0.00 - 199.99) : 10.00 Ω 1Xab ( 0.00 - 199.99) : 0.50 Ω...
Page 219 6 F 2 S 0 8 5 0 mode "A", "B" or "GPS", and the "Master" or "Slave", and "2 terminal line (=2TERM)" or "3 terminal line (=3TERM)" or "Dual communication for 2 terminal line (=Dual)". Refer to Section 2 and 2.2.2. However "TERM", "CH.CON", "T.SFT2"...
Page 220 6 F 2 S 0 8 5 0 • Press 3 (=Trip) on the "Protection" screen to display the "TRIP" screen. T r i p ( G r o u p S c h e m e s w i t c h 2 = P r o t e c t i o n e l e m e n t Note: Depending on the scheme switch setting, some of the scheme switches and protection...
Page 221 6 F 2 S 0 8 5 0 Setting the protection elements • Press 2 (=Protection element) to display the "Protection element" screen. ／６Ｐｒｏｔｅｃｔｉｏｎｅｌｅｍｅｎｔ１／＊＊ＤＩＦＩ１（０．５０－１０．００）：１．００＿ＡＤＩＦＩ２（３．０－１２０．０）：２．０Ａ...
Page 222 6 F 2 S 0 8 5 0 A u t o r e c l o s e m o d e 1 = D i s a 2 = S P A R 3 = T P S P A &...
Page 223 6 F 2 S 0 8 5 0 C o p y g r o u p ( A c t i v e g r o u p = 8 ) ： 8 ) ： • Enter the group number to be copied in line A and press the ENTER key. •...
Page 224 6 F 2 S 0 8 5 0 user-configurable. It is possible to assign one signal or up to six ANDing or ORing signals to one output relay. Available signals are listed in Appendix B. It is also possible to attach a drop-off delay time of 0.2 second to these signals. The drop-off delay time is disabled by the scheme switch [BOTD].
Page 225 6 F 2 S 0 8 5 0 I n p u t l o g i c g a t e # 1 ( 0 7 1 ) ： 0 7 1 # 2 ( ) ： # 3 ( 0 7 1 ) ：...
Page 226: Testing
6 F 2 S 0 8 5 0 I n p u t l o g i c g a t e # 1 ( 0 7 1 ) ： # 2 ( 0 7 1 ) ： # 3 ( 0 7 1 ) ：...
Page 227 6 F 2 S 0 8 5 0 The fourth line (Open2) is displayed only for three-terminal line application ("3TERM" setting). The automatic monitor function (A.M.F.) can be disabled by setting the switch [A.M.F] to "OFF". A.M.F. Disabling the A.M.F. prevents tripping from being blocked even in the event of a failure in the items being monitored by this function.
Page 228 6 F 2 S 0 8 5 0 Note : Be sure to restore these switches after the tests are completed or three-terminal normal operation resumes. In normal operation, the switch [A.M.F] is set to "1" (=On) and other switches to "0" (=Off). In other situation, the red "TESTING" LED is lit for alarming. IECTST •...
Page 229 6 F 2 S 0 8 5 0 Z1Sθ1 or Z1Gθ1 Figure 4.2.7.2 Gradient Characteristic of Zone 1 UVTEST • Enter 0 (=Off) or 1 (=On) to set disable/enable the UV blocking (UVBLK) and press the key. E N TE R •...
Page 230 6 F 2 S 0 8 5 0 ( 0 = D i s a b l e 1 = E n a b l e ) 1 / 1 4 I O # B O 1 I O # B O 2 I O # B O 3...
Page 231 6 F 2 S 0 8 5 0 T i m e r P r e s s E N T E R o p e r a t e . P r e s s C A N C E L c a n c e l .
Page 232 6 F 2 S 0 8 5 0 • Press 5 (=Test) on the top "MENU" screen to display the "Test" screen. T e s t 2 = B i n a r y o u t p u t 1 = S w i t h 4 = L o g i c c i r c u i t...
Page 233: Personal Computer Interface
6 F 2 S 0 8 5 0 4.3 Personal Computer Interface The relay can be operated from a personal computer using an RS232C port on the front panel. On the personal computer, the following analysis and display of the fault voltage and current are available in addition to the items available on the LCD screen.
Page 234: Iec 60870-5-103 Interface
6 F 2 S 0 8 5 0 UTP cable (10Base-T) 214B-13-10 100/110/115/120V Other relays HUB. Relay Figure 4.4.2 Relay Setting and Monitoring System (2) 4.5 IEC 60870-5-103 Interface The GRL100 can support the IEC60870-5-103 communication protocol. This protocol is mainly used when the relay communicates with a control system and is used to transfer the following measurand, status data and general command from the relay to the control system.
Page 235: Installation
6 F 2 S 0 8 5 0 5. Installation 5.1 Receipt of Relays When relays are received, carry out the acceptance inspection immediately. In particular, check for damage during transportation, and if any is found, contact the vendor. Check that the following accessories are attached. •...
Page 236: External Connections
6 F 2 S 0 8 5 0 the high reliability and long life for which the equipment has been designed and manufactured. CAUTION • Before removing a module, ensure that you are at the same electrostatic potential as the equipment by touching the case.
Page 237 6 F 2 S 0 8 5 0 Optical interface for telecommunication The optical cables tend to come down, therefore, bending requires special attention. Handling instructions of optical cable are as follows: № Instructions Do not insert the connector obliquely. Tighten the connector when connecting.
Page 238: Commissioning And Maintenance
6 F 2 S 0 8 5 0 6. Commissioning and Maintenance 6.1 Outline of Commissioning Tests The GRL100 is fully numerical and the hardware is continuously monitored. Commissioning tests can be kept to a minimum and need only include hardware tests and conjunctive tests.
Page 239: Cautions
6 F 2 S 0 8 5 0 6.2 Cautions 6.2.1 Safety Precautions CAUTION • The relay rack is provided with a grounding terminal. Before starting the work, always make sure the relay rack is grounded. • When connecting the cable to the back of the relay, firmly fix it to the terminal block and attach the cover provided on top of it.
Page 240: Preparations
6 F 2 S 0 8 5 0 6.3 Preparations Test equipment The following test equipment is required for the commissioning tests. 1 Three-phase voltage source 2 Single-phase current sources 1 Dynamic three-phase test set (for protection scheme test) 1 DC power supply 3 DC voltmeters 3 AC voltmeters 3 Phase angle meters...
Page 241: Hardware Tests
6 F 2 S 0 8 5 0 6.4 Hardware Tests The tests can be performed without external wiring, but DC power supply and AC voltage and current source are required. 6.4.1 User Interfaces This test ensures that the LCD, LEDs and keys function correctly. LCD display •...
Page 242: Binary Input Circuit
6 F 2 S 0 8 5 0 6.4.2 Binary Input Circuit The testing circuit is shown in Figure 6.4.2.1. GRL100 -A11 BI15 -B11 TB3 -A14 BI16 -B14 BI17 -A15 BI18 -B15 BI19 BI20 -A10 BI25 -B10 -A16 power − supply -A17 Figure 6.4.2.1 Testing Binary Input Circuit...
Page 243: Binary Output Circuit
6 F 2 S 0 8 5 0 6.4.3 Binary Output Circuit This test can be performed by using the "Test" sub-menu and forcibly operating the relay drivers and output relays. Operation of the output contacts is monitored at the output terminal. The output contact and corresponding terminal number are shown in Appendix G.
Page 244: Ac Input Circuits
6 F 2 S 0 8 5 0 6.4.4 AC Input Circuits This test can be performed by applying known values of voltages and currents to the AC input circuits and verifying that the values applied coincide with the values displayed on the LCD screen.
Page 245: Function Test
6 F 2 S 0 8 5 0 6.5 Function Test CAUTION The function test may cause the output relays to operate including the tripping output relays. Therefore, the test must be performed with tripping circuits disconnected. 6.5.1 Measuring Element Measuring element characteristics are realized by software, so it is possible to verify the overall characteristics by checking representative points.
Page 246 6 F 2 S 0 8 5 0 6.5.1.1 Phase current differential element DIF The phase current differential element is checked for the following items. Operating current value Charging current compensation Percentage restraining characteristic The top two items are tested locally or under an end-to-end setup of each terminal relay. The last item is tested only under an end-to-end setup of each terminal relay.
Page 247 6 F 2 S 0 8 5 0 • Apply a test current and change the magnitude of the current applied and measure the value at which the element operates. • Check that the measured value is within 7% of the setting DIFI1. Charging current compensation The charging current compensation function is checked by displaying the differential current on the LCD.
Page 248 6 F 2 S 0 8 5 0 90 ° . • Check that the A-phase differential current I da on the "Metering" screen coincides with the I d mentioned above with an error within ± 7%. End-to-end test setup When the percentage restraint characteristic is checked, an end-to-end setup using two relays is required.
Page 249 6 F 2 S 0 8 5 0 Relay A: GRL100 Single-phase current source − (**) φ -A16 -A17 Monitoring jack Relay C: GRL100 -A16 -A17 Monitoring jack Relay B: GRL100 Single-phase current source − -A16 power supply -A17 Monitoring jack voltmeter Note: In case of two-terminal applications (The relay C is not used.),...
Page 250 6 F 2 S 0 8 5 0 <Testing on site> If the relays are tested at each installation site, the end-to-end test is performed after the telecommunication circuit between terminals is setup. Figure 6.5.1.3 (b) shows the testing circuit of the on-site end-to-end test.
Page 251 6 F 2 S 0 8 5 0 GRL100 Single-phase current source − φ Monitoring jack -A16 power supply -A17 − PULSE Reference Oscillo- voltage source scope − Telecomm. Circuit voltmeter GRL100 Single-phase current source − φ Monitoring jack -A16 power supply -A17...
Page 252 6 F 2 S 0 8 5 0 • Enter a signal number 270 for Term B to observe a signal PULSE at monitoring jack B, and then press the ENTER key. The phase of the test current is adjusted as follows. •...
Page 253 6 F 2 S 0 8 5 0 I out ≤ DIFI2 where, DIFI1 and DIFI2 are setting values. • Set the charging current compensation DIFIC to zero. • Press 4 (=Logic circuit) on the "Test" sub-menu screen to display the "Logic circuit" screen. •...
Page 254 6 F 2 S 0 8 5 0 6.5.1.3 Distance Measuring Element Z1, Z2, Z3, Z4, ZR and PSB Phase fault element reach test The test voltage and current input test circuit is shown in Figure 6.5.1.6. GRL100 Three-phase voltage source Monitoring φ...
Page 255 6 F 2 S 0 8 5 0 Reach setting Error ±10% 0.01 - 0.05Ω 5A)(*) (0.1 - 0.2Ω ±7% 0.06 - 0.09Ω (0.3 - 0.4Ω ±5% 0.10 - 1.00Ω (0.5 - 5.0Ω ±5% 1.01 - 10.00Ω (5.1 - 50.0Ω ±5% 10.01 - 20.00Ω...
Page 256 θ is the angle difference between voltage and current. Note: Toshiba recommend that a minimum of three values for θ be tested to check that the correct relay settings have been applied. Care must be taken in choosing values of θ to ensure that the testing points come within the operating boundary defined by the Z1S θ...
Page 257 6 F 2 S 0 8 5 0 Earth fault element reach test The test circuit is shown in Figure 6.5.1.7. GRL100 Three-phase voltage source Monitoring φ jack Single-phase current source 3I o -A16 power -A17 − supply voltmeter Figure 6.5.1.7 Testing Earth-Fault Element Earth fault elements and their output signal number are listed below.
Page 258 6 F 2 S 0 8 5 0 (0.3 - 0.4Ω ±5% 0.1 - 1.0Ω (0.5 - 5.0Ω ±5% 1.01 - 10.0Ω (5.1 - 50.0Ω ±5% 10.01 - 20.0Ω 2.5A 0.5A) (50.1 - 100Ω ±7% 20.01 - 50.0Ω 0.2A) (100.1 - 250Ω ±10% 50.01 - 100Ω...
Page 259 θ is the angle difference between voltage and current. Note: Toshiba recommend that a minimum of three values for θ be tested to check that the correct relay settings have been applied. Care must be taken in choosing values of θ to ensure that the testing points come within the operating boundary defined by the Z1G θ...
Page 260 6 F 2 S 0 8 5 0 default setting of the UVCV is 48 V.) • Choose a test current IT by referring to the table below, which shows the relation of setting reach UVCZ, test current IT and measuring error. UVCZ Error ±5%...
Page 261 6 F 2 S 0 8 5 0 • Press 5 (=Logic circuit) on the Test screen to display the Logic circuit screen. • Enter 59 as a signal number to be observed at monitoring jack A and press the ENTER key. Residual current level detection is verified as follows: •...
Page 262 6 F 2 S 0 8 5 0 Element Signal number OCI-A OCI-B OCI-C Fix the time characteristic to test by setting the scheme switch MEFI or MOCI on the "Scheme switch" screen. "Setting (change)" sub-menu → "Protection" screen → "Trip" screen → "Scheme switch" screen The test procedure is as follows: •...
Page 263 6 F 2 S 0 8 5 0 GRL100 Three-phase Current source Monitoring jack -A16 power -B17 − supply voltmeter Figure 6.5.1.9 Testing BCD element The output signal of testing element is assigned to the monitoring jack A. The output signal numbers of the elements are as follows: Element Signal No.
Page 264 6 F 2 S 0 8 5 0 Overvoltage and undervoltage elements and their output signal number are listed below. Element Signal No. OVS1-AB OVS2-AB OVG1-A OVG2-A UVS1-AB UVS2-AB UVG1-A UVG2-A • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1.
Page 265 6 F 2 S 0 8 5 0 GRL100 Single-phase voltage source φ -A16 -A17 Monitoring jack GRL100 Single-phase voltage source -A16 power − supply -A17 Monitoring jack voltmeter Figure 6.5.1.11 (a) Laboratory Setup for Testing Out-of-step Element  264 ...
Page 266 6 F 2 S 0 8 5 0 GRL100 Single-phase current source − φ Monitoring jack -A16 power supply -A17 − Reference Oscillo- voltage scope source − Telecomm. Circuit voltmeter GRL100 Single-phase current source − φ Monitoring jack -A16 power supply -A17 −...
Page 267 6 F 2 S 0 8 5 0 The output signal numbers of the OST element are as follows. Element Signal number Remarks OST1 Two-terminal and three-terminal application OST2 Three-terminal application • Press 4 (=Logic circuit) on the "Test" sub-menu screen to display the "Logic circuit" screen. •...
Page 268 6 F 2 S 0 8 5 0 Element Signal number OVL1 UVL1 OVL2 UVL2 SYN1 SYN2 OVL1(3PH) Connect the phase angle meter to the three-phase voltages taking the scheme switch "VT-RATE" and VTPH-SEL settings into consideration. The phase angle meter connection shown in Figure 6.5.1.12 is the case for the default settings, ie., "VT-RATE"...
Page 269 6 F 2 S 0 8 5 0 Synchronism check element SYN1 • Press 4 (=Logic circuit) on the "Test" screen to display the "Logic circuit" screen. • Enter a signal number for the TermA line to be observed at monitoring jack A and press the ENTER key.
Page 270: Timer
6 F 2 S 0 8 5 0 The output signal number of the OCD and OCDP is as follows: Measuring element Signal number OCD-A OCD-B OCD-C OCD1-A OCD1-B OCD1-C Operation must be verified by abruptly changing the test current from 0 A to 1.2 × Setting value or vice versa.
Page 271 6 F 2 S 0 8 5 0 GRL100 TB4 -A16 power − supply -A17 Monitoring jack Start Time Stop counter Figure 6.5.2.1 Testing Variable Timer • Press 3 (=Timer) on the "Test" screen to display the "Timer" screen. • Enter the number corresponding to the timer to be observed. The timers and assigned numbers are listed in Appendix C.
Page 272: Protection Scheme
6 F 2 S 0 8 5 0 6.5.3 Protection Scheme Protection schemes implemented in GRL100 are basically for unit protection. It is recommended that the protection schemes are tested under end-to-end mode. The setup of the end-to-end synchronized test is described in Section 6.5.1. In the protection scheme tests, a dynamic test set with the three-phase voltage source and current source is required to simulate power system pre-fault, fault and post-fault conditions.
Page 273 6 F 2 S 0 8 5 0 Check that the operating time is 1-1.5 cycle plus zone 3 timer setting. Check that the indications and recordings are correct. Zone R tripping Set the scheme switches [ZRTP] to "On". (The [ZRTP] default setting is "Off".) Check that three-phase time-delayed final tripping is performed for all kinds of faults.
Page 274 6 F 2 S 0 8 5 0 UOP tripping Set the scheme switch [CRSCM] to "UOP", [WKIT] and [ECHO] to "Off". De-energize the binary input BIn to simulate interruption of a trip block signal reception and apply a zone 2 fault. Check that instantaneous single-phase or three-phase tripping is performed depending on the fault types and setting of autoreclose mode selection switch [ARC-M].
Page 275 6 F 2 S 0 8 5 0 Voltage transformer failure supervision A voltage transformer (VT) failure is detected when an undervoltage element or residual overvoltage element operates but a current change detection element or residual overcurrent element does not operate accordingly. VT failure detection is checked as follows: •...
Page 276: Metering And Recording
6 F 2 S 0 8 5 0 [PSB-Z2], [-Z3] and [-ZR]. Check that power swing blocking is recorded on the event record. Out-of-step tripping Set the scheme switch [OST] to "Trip". Shift the phase angle from the second quadrant to the third quadrant or vice versa taking the remote terminal voltage as a reference voltage.
Page 277 6 F 2 S 0 8 5 0 The fault locator starts measurement when the current differential protection operates. Therefore, it is preferable to test it whilst testing the protection schemes by applying a fault. The line parameter settings must be changed to meet those of the test set. The measurement result is expressed as a percentage of the line length and the distance, and is displayed on the "Fault Record"...
Page 278: Conjunctive Tests
6 F 2 S 0 8 5 0 6.6 Conjunctive Tests 6.6.1 On Load Test With the relay connected to the line which is carrying load current, it is possible to check the polarity of the voltage and current transformers and the phase rotation with the metering displays on the LCD screen.
Page 279 6 F 2 S 0 8 5 0 • Press 3 (= Binary output) on the "Test" screen to display the "Binary output" screen. The LCD displays the output modules installed depending on the model. • Enter 2 to select the IO#2 module, the LCD will display the screen shown below, indicating the name of the module, the name of the output relay, the name of the terminal block and the terminal number to which the relay contact is connected.
Page 280: Tripping And Reclosing Circuit Test
6 F 2 S 0 8 5 0 output" screen. In the BOP scheme, the end-to-end test can be carried out more simply on the "Manual test" screen of the "Test" sub-menu. For the details, see Section 4.2.7.2. Note: In these tests it is recommended to block the tripping circuit to prevent false tripping. 6.6.3 Tripping and Reclosing Circuit Test The tripping and reclosing circuit including the circuit breaker is checked by forcibly operating...
Page 281 6 F 2 S 0 8 5 0 displays the name of the module, the name of the output relay, the name of the terminal block and the terminal number to which the relay contact is connected. Note: The autoreclose command is assigned to any of the output relays by the user setting. The following description is the case for the default setting.
Page 282: Maintenance
6 F 2 S 0 8 5 0 6.7 Maintenance 6.7.1 Regular Testing The relay is almost completely self-supervised. The circuits which cannot be supervised are binary input and output circuits and human interfaces. Therefore regular testing can be minimized to checking the unsupervised circuits. The test procedures are the same as described in Sections 6.4.1, 6.4.2 and 6.4.3.
Page 283 6 F 2 S 0 8 5 0 Table 6.7.2.1 LCD Message and Failure Location Message Failure location IO3, Channel Discon- AC cable (GCOM) IO5, nector Checksum err × ROM-RAM err × SRAM err × BU-RAM err × DPRAM err ×...
Page 284: Replacing Failed Modules
6 F 2 S 0 8 5 0 If no message is shown on the LCD, it means that the failure location is either in the DC power supply circuit or in the microprocessors mounted on the SPM module. In this case, check the "ALARM"...
Page 285 6 F 2 S 0 8 5 0 The software name is indicated on the memory device on the module with six letters such as GS1LM1- ∗∗ , GS1LC1- ∗∗ , etc. CAUTION When handling a module, take anti-static measures such as wearing an earthed wrist band and placing modules on an earthed conductive mat.
Page 286: Resumption Of Service
6 F 2 S 0 8 5 0 (*) This panel is attached only to models assembled in the type B case. • Detach the module holding bar by unscrewing the binding screw located on the left side of the bar. •...
Page 287: Putting Relay Into Service
6 F 2 S 0 8 5 0 7. Putting Relay into Service The following procedure must be adhered to when putting the relay into service after finishing commissioning or maintenance tests. • Check that all external connections are correct. •...
Page 288: Appendix A Block Diagram
6 F 2 S 0 8 5 0 Appendix A Block Diagram  287 ...
Page 289 6 F 2 S 0 8 5 0 DIFG TDIFG Zone 1 Trip Phase ≧1 & ≧1 Bus CB Trip Command & Selection TZ1G TZ2G Zone Back-up Trip & ≧1 ≧1 TZ3G & ≧1 Center CB Trip Command & TZRG &...
Page 290: Appendix B Signal List
6 F 2 S 0 8 5 0 Appendix B Signal List  289 ...
Page 291 6 F 2 S 0 8 5 0 Signal list Signal Name Contents Protection CONSTANT 0 constant 0 relay CONSTANT 1 constant 1 output 43CX Diff.protection enable condition 15 43BUX Backup protection enable condition 38 ARC_COM.ON Autorecloser active (for IEC103) 39 TELE.COM.ON Teleprotection active (for IEC103) 40 PROT.COM.ON...
Page 292 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 81 52AND1 CB1 contact AND logic 82 DIF-A TRIP DIF trip signal A 83 DIF-B TRIP DIF trip signal B 84 DIF-C_TRIP DIF trip signal C 85 TDIFG TDIFG timer output 86 DIFG TRIP DIFG trip signal...
Page 293 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 161 TDBL1 TDBL1 timer output 162 TLBD1 TLBD1 timer output 163 TSYN1 TSYN1 timer output 164 TDBL2 TDBL2 timer output 165 TLBD2 TLBD2 timer output 166 TSYN2 TSYN2 timer output 167 REC-READY1 ARC ready signal in leader CB autoreclose...
Page 294 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 251 CHECKING During automatic checking 252 CHK FAIL-Q Fail-to-operate of tripping output circuit 253 CHK STEP1 Checking step1 254 CHK_STEP2 Checking step2 255 CHK_STEP3 Checking step3 256 OC/OCI_TRIP OC/OCI trip 257 EF/EFI_TRIP EF/EFI trip...
Page 295 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 321 UVGF-A UVGF-A element output 322 UVGF-B UVGF-B element output 323 UVGF-C UVGF-C element output 325 UVDF-A UVDF-A element output 326 UVDF-B UVDF-B element output 327 UVDF-C UVDF-C element output 333 TMPR1 Dead time count up signal in leader CB MPAR...
Page 296 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 401 DIF.FS-A TRIP DIF-A trip with FS 402 DIF.FS-B_TRIP DIF-B trip with FS 403 DIF.FS-C_TRIP DIF-C trip with FS 404 DIFG.FS_TRIP DIFG trip with FS 405 DIF_TRIP DIF trip signal 408 DIFFS_OP Fail safe for DIF trip...
Page 297 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 481 ARCMD SPAR ditto (SPAR) 482 ARCMD_TPAR ditto (MPAR) 483 ARCMD S&T ditto (SPAR & TPAR) 484 ARCMD_MAPR2 ditto (MPAR2) 485 ARCMD MPAR3 ditto (MPAR3) 486 ARCMD EXT1P ditto (EXT1P) 487 ARCMD EXT3P...
Page 298 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 561 Z1G-B ditto 562 Z1G-C ditto 563 Z2G-A EARTH FAULT RELAY Z2G 564 Z2G-B ditto 565 Z2G-C ditto 566 Z3G-A EARTH FAULT RELAY Z3G 567 Z3G-B ditto 568 Z3G-C ditto 569 Z4G-A...
Page 299 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 641 OVS1-CA OVS1-CA relay element output 642 OVS2-AB OVS2-AB relay element output 643 OVS2-BC OVS2-BC relay element output 644 OVS2-CA OVS2-CA relay element output 645 OVG1-A OVG1-A relay element output 646 OVG1-B OVG1-B relay element output 647 OVG1-C...
Page 300 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 721 CB-OR CB CONTACT (3PHASE OR) 722 Z1G-AX Z1G-AX 723 Z1G-BX Z1G-BX 724 Z1G-CX Z1G-CX 725 Z2G-AX Z2G-AX 726 Z2G-BX Z2G-BX 727 Z2G-CX Z2G-CX 728 Z3G-AX Z3G-AX 729 Z3G-BX Z3G-BX 730 Z3G-CX...
Page 301 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 801 Z3G-A TRIP Z3G TRIP A ph. 802 Z3G-B_TRIP Z3G TRIP B ph. 803 Z3G-C TRIP Z3G TRIP C ph. 804 Z3S_TRIP Z3S TRIP 805 ZRG TRIP ZRG TRIP 806 ZRG-A TRIP ZRG TRIP A ph.
Page 302: Z2_Trip
6 F 2 S 0 8 5 0 Signal list Signal Name Contents 881 DISCR-C TRIP DISTANCE CARRIER TRIP (C ph.) 882 DEFCR_TRIP DG CARRIER TRIP 883 DEFCR-A_TRIP DG CARRIER TRIP (A ph.) 884 DEFCR-B_TRIP DG CARRIER TRIP (B ph.) 885 DEFCR-C_TRIP DG CARRIER TRIP (C ph.) 886 CAR-S...
Page 303 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 961 V.COM2-R1 ditto 962 V.COM3-R1 ditto 964 S.V.COM1-R1 Comm. data(V0 data frame) receive signal from term-1 965 S.V.COM2-R1 ditto 966 S.V.COM3-R1 ditto 967 S.V.COM4-R1 ditto 968 S.V.COM5-R1 ditto 969 S.V.COM6-R1 ditto...
Page 304 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1041 FAULT PHA B fault phase B 1042 FAULT_PHA_C fault_phase_C 1043 FAULT_PHA_N fault_phase_N 1044 FL_ERR fault location start up error 1045 FL_OB_FWD fault location out of bounds(forward) 1046 FL_OB_BACK fault location out of bounds(backward) 1047 FL_NC...
Page 305 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1121 SUB2 COM10-R1 ditto 1122 SUB2_COM11-R1 ditto 1123 SUB2_COM12-R1 ditto 1124 1125 1126 1127 1128 COM1-R2 Comm. data receive signal from remote term-2 1129 COM2-R2 ditto 1130 COM3-R2 ditto 1131 COM4-R2 ditto...
Page 306 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230...
Page 307 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1281 1282 1283 1284 BI1_COM_UF Binary input signal BI1 (unfiltered) 1285 BI2_COM_UF Binary input signal BI2 (unfiltered) 1286 BI3_COM_UF Binary input signal BI3 (unfiltered) 1287 BI4_COM_UF Binary input signal BI4 (unfiltered) 1288 BI5_COM_UF Binary input signal BI5 (unfiltered) 1289 BI6_COM_UF...
Page 308 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390...
Page 309 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1441 1442 1443 1444 1445 PLC_data_CHG PLC data change 1446 1447 1448 Sys.set_change System setting change 1449 Rly.set_change Relay setting change 1450 Grp.set_change Group setting change 1451 1452 1453 1454...
Page 310 6 F 2 S 0 8 5 0 Signal list Signal Name Contents Input for 1536 CB1 CONT-A CB1 contact (A-phase) protection 1537 CB1 CONT-B (B-phase) 1538 CB1 CONT-C (C-phase) 1539 CB2 CONT-A CB2 contact (A-phase) 1540 CB2 CONT-B (B-phase) 1541 CB2 CONT-C (C-phase) 1542 DS N/O CONT...
Page 311 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1616 DIF-A_FS Fail safe command for DIF-A trip 1617 DIF-B FS Fail safe command for DIF-B trip 1618 DIF-C_FS Fail safe command for DIF-C trip 1619 DIFG FS Fail safe command for DIFG trip 1620 TP-A_DELAY Trip command off-delay timer setting...
Page 312 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1696 DIF-A-R2 DIF-A relay operating command from remote term-2 for TFC 1697 DIF-B-R2 DIF-B relay operating command from remote term-2 for TFC 1698 DIF-C-R2 DIF-C relay operating command from remote term-2 for TFC 1699 DIFG-R2 DIFG relay operating command from remote term-2 for TFC 1700...
Page 313 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 IO#1-TP-A1 Binary output signal of TP-A1 1793 IO#1-TP-B1 TP-B1 1794 IO#1-TP-C1 TP-C1 1795 IO#1-TP-A2 Binary output signal of TP-A2...
Page 314 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1856 CAR.R1-1 Trip carrier from remote terminal-1 1857 CAR.R1-2 Independent DEF carrier from remote terminal-1 1858 OPEN TERM-R1 Remote terminal-1 out of service command 1859 1860 1861 1862 1863 1864 CAR.R2-1...
Page 315 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 1936 Z1 INST TP Z1 instantly trip command 1937 1938 Z2 INST TP Z2 instantly trip command 1939 Z3 INST TP Z3 instantly trip command 1940 1941 1942 1943 1944...
Page 316 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045...
Page 317 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2096 V.COM1-S Communiation on/off data(V0 data frame) send command 2097 V.COM2-S ditto 2098 V.COM3-S ditto 2099 2100 S.V.COM1-S Communiation on/off data(V0 data frame) send command 2101 S.V.COM2-S ditto 2102 S.V.COM3-S ditto...
Page 318 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605...
Page 319 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2656 CON TPMD1 User configurable trip mode in fault record 2657 CON TPMD2 ditto 2658 CON_TPMD3 ditto 2659 CON TPMD4 ditto 2660 CON TPMD5 ditto 2661 CON TPMD6 ditto 2662 CON TPMD7 ditto...
Page 320 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2816 TEMP001 2817 TEMP002 2818 TEMP003 2819 TEMP004 2820 TEMP005 2821 TEMP006 2822 TEMP007 2823 TEMP008 2824 TEMP009 2825 TEMP010 2826 TEMP011 2827 TEMP012 2828 TEMP013 2829 TEMP014 2830 TEMP015 2831 TEMP016 2832 TEMP017...
Page 321 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2896 TEMP081 2897 TEMP082 2898 TEMP083 2899 TEMP084 2900 TEMP085 2901 TEMP086 2902 TEMP087 2903 TEMP088 2904 TEMP089 2905 TEMP090 2906 TEMP091 2907 TEMP092 2908 TEMP093 2909 TEMP094 2910 TEMP095 2911 TEMP096 2912 TEMP097...
Page 322 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 2976 TEMP161 2977 TEMP162 2978 TEMP163 2979 TEMP164 2980 TEMP165 2981 TEMP166 2982 TEMP167 2983 TEMP168 2984 TEMP169 2985 TEMP170 2986 TEMP171 2987 TEMP172 2988 TEMP173 2989 TEMP174 2990 TEMP175 2991 TEMP176 2992 TEMP177...
Page 323 6 F 2 S 0 8 5 0 Signal list Signal Name Contents 3056 TEMP241 3057 TEMP242 3058 TEMP243 3059 TEMP244 3060 TEMP245 3061 TEMP246 3062 TEMP247 3063 TEMP248 3064 TEMP249 3065 TEMP250 3066 TEMP251 3067 TEMP252 3068 TEMP253 3069 TEMP254 3070 TEMP255 3071 TEMP256 ...
Page 324: Appendix C Variable Timer List
6 F 2 S 0 8 5 0 Appendix C Variable Timer List  323 ...
Page 325 6 F 2 S 0 8 5 0 Variable Timer List Timer Timer No. Contents Timer Timer No. Contents TDIFG DIFG delayed trip TDEFC DEF carrier trip delay time (forward) TBF1A BF retrip (phase A) TDERC DEF carrier trip delay time(reverse) TBF1B BF retrip (phase B) TSOTF...
Page 326: Appendix D Binary Output Default Setting List
6 F 2 S 0 8 5 0 Appendix D Binary Output Default Setting List  325 ...
Page 327 6 F 2 S 0 8 5 0 Binary Output Default Setting List (1) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: IO#2 A2-A1 TRIP-A1/A2 Trip A phase 99, 102 GRL100 A2-B1...
Page 328 6 F 2 S 0 8 5 0 Binary Output Default Setting List (2) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: IO#2 A2-A1 TRIP-A1/A2 Trip A phase 99, 102 GRL100 A2-B1...
Page 329 6 F 2 S 0 8 5 0  328 ...
Page 330: Appendix E Details Of Relay Menu And Lcd & Button Operation
6 F 2 S 0 8 5 0 Appendix E Details of Relay Menu and LCD & Button Operation  329 ...
Page 331 6 F 2 S 0 8 5 0 MENU 1=Record 2=Status 3=Setting(view) 4=Setting(change) 5=Test /1 Record 1=Fault record 2=Event record 3=Disturbance record 4= Autoreclose count /2 Fault record /3 Fault record /4 Fault record #2 3/33 1=Display 2=Clear #1 16/Oct/1998 23:18:03.913 16/Oct/1998 23:18:03.913 #2 12/Feb/1998 03:51:37.622 Phase BC...
Page 332 6 F 2 S 0 8 5 0 /1 Status /2 Metering 12/Feb/1998 22:56 3/13 1=Metering 2=Binary I/O Va ***.*kV ***.* Ia **.**kA ***.* 3=Relay element 4=Time sync source Vb ***.*kV ***.* Ib **.**kA ***.* 5=Clock adjustment 6=Terminal condition Vc ***.*kV ***.* Ic **.**kA ***.* /2 Binary input &...
Page 333 6 F 2 S 0 8 5 0 /2 Status /3 Metering 3/ 3 1=Metering Display value 1=Primary 2=Secondary 1 2=Time Synchronization Power (P/Q) 1=Send 2=Receive 3=Time zone Current 1=Lag 2=Lead /3 Time synchronization 1/ 1 Sync 0=Off 1=IRIG 2=RSM 3=IEC 4=GPS 1 /3 Time zone 1/ 1 /2 Protection...
Page 334 6 F 2 S 0 8 5 0 /2 Binary input 3/ 31 BISW 1 1=Norm 2=Inv BISW 2 1=Norm 2=Inv BISW 3 1=Norm 2=Inv /2 Binary output /3 Binary output (IO#2)3/12 1=IO#2 2=IO#3 3=IO#4 BO1 ( 1, 2, 3, 4, 5, 6) AND,D BO2 ( 1, 2, 3, 4, 5, 6) OR, BO3 ( 1, 2, 3, 4, 5, 6) OR,D /3 Binary output...
Page 335 6 F 2 S 0 8 5 0 /2 Status /3 Metering 1/ 3 1=Metering Display value 1=Primary 2=Secondary 1_ 2=Time Synchronization Power (P/Q) 1=Send 2=Receive 3=Time zone Current 1=Lag 2=Lead /3 Time synchronization 1/ 1 Sync 0=Off 1=IRIG 2=RSM 3=IEC 4=GPS 1 _ /3 Time zone 1/ 1 GMT (...
Page 336 6 F 2 S 0 8 5 0 /5 Autoreclose (Group 1) /6 Autoreclose mode 1=Autoreclose mode 1=Disable 2=SPAR 3=TPAR 4=SPAR&TPAR 2=Scheme switch 5=MPAR2 6=MPAR3 7=EXT1P 8=EXT3P 3=Autoreclose element Current No.= 4 Select No.= _ /6 Scheme switch 1/ 8 ARC-CB 1=00 2=01 3=03 4=L1 5=L2 1 _ ARC-EXT 0=Off 1=On...
Page 337 6 F 2 S 0 8 5 0 /1 Test 1/ ∗∗ /2 Switch 1=Switch 2=Binary output A.M.F. 0=Off 1=On 3=Timer 4=Logic circuit L.test 0=Off 1=On 5=Sim. Fault 6=Init. 2B Open1 0=Off 1=On /2 Binary output 1=IO#1 2=IO#2 3=IO#3 4=IO#4 Press number to start test /3 BO (0=Disable 1=Enable) 1/ 6...
Page 338 6 F 2 S 0 8 5 0 LCD AND BUTTON OPERATION INSTRUCTION MANUAL MODE 1. PRESS ARROW KEY TO MOVE TO EACH DISPLAYED ITEMS NORMAL 2. PRESS "END" KEY TO BACK TO PREVIOUS SCREEN (DISPLAY OFF) 1=RECORD PRESS BUTTON MENU EXCEPT FOR 1=FAULT RECORD...
Page 339 6 F 2 S 0 8 5 0  338 ...
Page 340: Appendix F Case Outline
6 F 2 S 0 8 5 0 Appendix F Case Outline • Case Type-A: Flush Mount Type • Case Type-B: Flush Mount Type • Case Type-A, B: Rack Mount Type  339 ...
Page 341 6 F 2 S 0 8 5 0 276.2 Front View Side View 4-φ5.5 190.5 34.75 235.4 Optical interface Panel Cut-out TB3/TB4 TB2 A1 B1 A1 B1 TB2-TB4: M3.5 Ring terminal (∗) (∗) TB1: M3.5 Ring A10 B10 terminal (∗): Provided with GRL100-∗1∗∗-∗9-∗∗ A18 B18 Electrical interface Rear View...
Page 342 6 F 2 S 0 8 5 0 276.2 Front View Side View 4-φ5.5 190.5 34.75 345.4 Optical interface Panel Cut-out TB2 - TB5 A1 B1 TB2-TB5: M3.5 Ring terminal TB1: M3.5 Ring terminal Electrical interface Rear View A18 B18 Terminal Block Case Type-B: Flush Mount Type for Models 702 and 712 ...
Page 343 6 F 2 S 0 8 5 0 Top View Attachment kit (top bar) Attachment kit Attachment kit (large bracket) (small bracket) 4 HOLES - 6.8x10.3 LINE DIFFERENTIAL PROTECTION GRL100 201A-11-10-30 100/110/115/120V 465.1 483.0 Front View Rack Mount Type: Case Type-A ...
Page 344 6 F 2 S 0 8 5 0 Attachment kit (top bar) Attachment kit Attachment kit (large bracket) (small bracket) Top View 4 HOLES - 6.8x10.3 LINE DIFFERENTIAL PROTECTION GRL100 202A-11-10-30 100/110/115/120V 110/125Vdc 465.1 483.0 Front View Rack Mount: Case Type-B ...
Page 345 6 F 2 S 0 8 5 0 247.8 19.4 18.8 (a) Large Bracket (b) Small Bracket (c) Bar for Top and Bottom of Relay Parts 1 Large bracket, 5 Round head screws with spring washers and washers (M4x10) 1 Small bracket, 3 Countersunk head screws (M4x6) 2 Bars, 4 Countersunk head screws (M3x8) Dimensions of Attachment Kit EP-101 ...
Page 346 6 F 2 S 0 8 5 0 19.4 137.8 18.8 (a) Large Bracket (b) Small Bracket (c) Bar for Top and Bottom of Relay Parts 1 Large bracket, 5 Round head screws with spring washers and washers (M4x10) 1 Small bracket, 3 Countersunk head screws (M4x6) 2 Bars, 4 Countersunk head screws (M3x8) Dimensions of Attachment Kit EP-102 ...
Page 347 6 F 2 S 0 8 5 0 How to Mount Attachment Kit for Rack-Mounting Caution: Be careful that the relay modules or terminal blocks, etc., are not damage while mounting. Tighten screws to the specified torque according to the size of screw. Step 1.
Page 348: Appendix G Typical External Connection
6 F 2 S 0 8 5 0 Appendix G Typical External Connection  347 ...
Page 349 6 F 2 S 0 8 5 0 TB3- A2 TB2-A1 B O 1 B O 1 B O 1 BUS VT TB1 -1 B O 2 B O 2 B O 3 B O 3 B O 2 B O 3 B O 4 Io from adjacent Line CT...
Page 350 6 F 2 S 0 8 5 0 TB3- A2 TB2- A2 TB5-A1 BUS VT B O 1 B O 1 B O 1 B O 1 TB1 -1 B O 1 B O 2 B O 2 B O 2 B O 2 B O 2 B O 3...
Page 351 6 F 2 S 0 8 5 0  350 ...
Page 352: Appendix H Relay Setting Sheet
6 F 2 S 0 8 5 0 Appendix H Relay Setting Sheet • Relay Identification • Transmission line parameters • Protection • Autoreclose scheme • Contacts setting • Contacts setting (continued) • Relay and Protection Scheme Setting Sheets  351 ...
Page 353 6 F 2 S 0 8 5 0 Relay Setting Sheets 1. Relay Identification Date: Relay type Serial Number Frequency CT rating VT rating dc supply voltage Password Active setting group 2. Transmission line parameters Line type Line length Line impedance Z1 = Z0 = Z0 (mutual) =...
Page 354 6 F 2 S 0 8 5 0 5. Contacts setting (1) IO#2 BO1 BO10 BO11 BO12 BO13 (2) IO#3 BO1 BO10 BO11 BO12 BO13 BO14 (3) IO#4 BO1 BO10 BO11 BO12 BO13 BO14 (Memo: For relay elements and scheme logic settings, the setting list as shown on the next page is made.) ...
Page 355 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents 2C B-ARC , NO -FD , W i t h D i st ance User 2TERM 3TERM Settiing 5A rating 1A rating Active group...
Page 356: Bu_Trip
6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents User 2C B-ARC , NO -FD , W i t h D i st ance 2TERM 3TERM Settiing 5A rating 1A rating SRCθ...
Page 357 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents 2C B-ARC , NO -FD , W i t h D i st ance User 2TERM 3TERM Settiing 5A rating 1A rating CTFCNT...
Page 358 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents 2C B-ARC , NO -FD , W i t h D i st ance User 2TERM 3TERM Settiing 5A rating 1A rating 0.01 - 100.00...
Page 359 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents User 2C B-ARC , NO -FD , W i t h D i st ance 2TERM 3TERM Settiing 5A rating 1A rating TOG2...
Page 360 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents 2C B-ARC , NO -FD , W i t h D i st ance User 2TERM 3TERM Settiing 5A rating 1A rating SY2θ...
Page 361 6 F 2 S 0 8 5 0 Default Setting of Relay Series(5A rating / 1A rating) № Name Range Units Contents 2C B-ARC , NO -FD , W i t h D i st ance User 2TERM 3TERM Settiing 5A rating 1A rating GW1-3...
Page 362 6 F 2 S 0 8 5 0 Event record Name Range Unit Contents Signal No. Signal name Type 0 - 3071 Event record signal 1536 CB1 A On/Off － 0 - 3071 － ditto 1537 CB1 B On/Off 0 - 3071 ditto 1538 CB1 C...
Page 363 6 F 2 S 0 8 5 0 Event record Name Range Unit Contents Signal No. Signal name Type EV65 0 - 3071 － ditto EV66 0 - 3071 ditto － EV67 0 - 3071 ditto － EV68 0 - 3071 ditto －...
Page 364 6 F 2 S 0 8 5 0 Disturbance record Default Name Range Unit Contents Signal No. Signal name SIG1 0 - 3071 － disturbance record triger TRIP-A SIG2 0 - 3071 － ditto TRIP-B SIG3 0 - 3071 － ditto TRIP-C SIG4 0 - 3071...
Page 365 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1536 CB1_CONT-A [513]BI1_COMMAND...
Page 366 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1600 ARC_OFF 1601...
Page 367 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 1671...
Page 368 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1731 1732 1733...
Page 369 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1801 1802 1803...
Page 370 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1871 INT.COM 1872...
Page 371 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 1941 1942 1943...
Page 372 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 2011 2012 2013...
Page 373 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2081...
Page 374 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2601...
Page 375 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 2671 2672 2673...
Page 376 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2741...
Page 377 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2811...
Page 378 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2881...
Page 379 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic ex pression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7x x Back Release None User Norm Time Value Signal Delay Delay Shot 2951...
Page 380 6 F 2 S 0 8 5 0 PLC Default Setting Output Timing Logic expression Delay Time / Flip Flop Cycle Flip Flop Timer № Signal Turn Model 7xx None Back Release User Norm Time Value Signal Delay Delay Shot 3021 TEMP206 3022...
Page 381 6 F 2 S 0 8 5 0  380 ...
Page 382: Appendix I Commissioning Test Sheet (Sample)
6 F 2 S 0 8 5 0 Appendix I Commissioning Test Sheet (sample) 1. Relay identification 2. Preliminary check 3. Hardware check 4. Function test 5. Protection scheme test 6. Metering and recording check 7. Conjunctive test  381 ...
Page 383 6 F 2 S 0 8 5 0 Relay identification Type Serial number Model System frequency Station Date Circuit Engineer Protection scheme Witness Active settings group number Preliminary check Ratings CT shorting contacts DC power supply Power up Wiring Relay inoperative alarm contact Calendar and clock Hardware check...
Page 384 6 F 2 S 0 8 5 0 Measured current (I 2 ) Tap setting × Tap × Tap 20 × Tap 4.2 Residual current differential element DIFG test (1) Minimum operating value test Tap setting Measured current (I 2 ) (2) Percentage restraining characteristic test Measured current (I 2 ) Tap setting...
Page 385 6 F 2 S 0 8 5 0 4.6 Directional earth fault element DEF test Element Current setting Measured current DEFF DEFR Element Voltage setting Measured voltage DEFF DEFR 4.7 Inverse definite minimum time overcurrent element (IDMT) EFI and OCI test Element Test current Measured operating time...
Page 386 6 F 2 S 0 8 5 0 4.10 Level detectors test Element Setting Measured value UVLS UVLG UVFS UVFG OCBF 4.11 BCD element check 4.12 Overvoltage and undervoltage elements test (1) Operating value test Element Voltage Measured Element Voltage Measured setting voltage...
Page 387 6 F 2 S 0 8 5 0 4.14 Voltage and synchronism check elements test (1) Voltage check element Element Setting Measured voltage Element Setting Measured voltage UVL1 OVL2 OVL1 UVL2 (2) Synchronism check element Voltage check Element Setting Measured voltage Element Setting Measured voltage...
Page 388: Appendix J Return Repair Form
6 F 2 S 0 8 5 0 Appendix J Return Repair Form  387 ...
Page 389 6 F 2 S 0 8 5 0 RETURN / REPAIR FORM Please fill in this form and return it to Toshiba Corporation with the GRL100 to be repaired. TOSHIBA CORPORATION Fuchu Complex 1, Toshiba-cho, Fuchu-shi, Tokyo, Japan For: Power Systems Protection & Control Department...
Page 390 6 F 2 S 0 8 5 0 Fault Record Date/Month/Year Time (Example: 04/ Nov./ 1997 15:09:58.442) Faulty phase: Fault Locator : km ( Prefault values (CT ratio: kA/: A, VT ratio: kV/: ° ° V a : kV or V∠ I a : kA or A∠...
Page 391 6 F 2 S 0 8 5 0 ° I db : kA or A∠ ° I dc : kA or A∠ ° I d0 : kA or A∠ R a : Ω X a : Ω R b : Ω...
Page 392 6 F 2 S 0 8 5 0 What was the message on the LCD display at the time of the incident. Please write the detail of the incident. Date of the incident occurred. Day/ Month/ Year: (Example: 10/ July/ 2005) Please write any comments on the GRL100, including the document.
Page 393 6 F 2 S 0 8 5 0 Customer Name: Company Name: Address: Telephone No.: Facsimile No.: Signature:  392 ...
Page 394: Appendix K Technical Data
6 F 2 S 0 8 5 0 Appendix K Technical Data  393 ...
Page 395 6 F 2 S 0 8 5 0 TECHNICAL DATA Ratings AC current I 1A or 5A AC voltage 100V, 110V, 115V, 120V Frequency: 50Hz or 60Hz DC power supply: 110Vdc/125Vdc (Operative range: 88 - 150Vdc) 220Vdc/250Vdc (Operative range: 176 - 300Vdc) 48Vdc/54Vdc/60Vdc (Operative range: 38.4 - 72Vdc) 24Vdc/30Vdc (Operative range: 19.2 –...
Page 396 6 F 2 S 0 8 5 0 Telecommunication Interface for current differential protection Bit rate 64kbs Transmission format IEC60870-5-1 Electrical interface (Telecomm. equipment link) Applicable standard CCITT-G703-1.2.1 CCITT-G703-1.2.2 or 1.2.3 X.21 Type of code NRZ (Non-Return to Zero) Connector type D-sub connector Optical interface (2 km class) Type of fibre...
Page 397 6 F 2 S 0 8 5 0 Minimum Operating Current of Distance Protection Current 0.08A (1A relay), 0.4A (5A relay) Residual Current Compensation Residual current compensation for reactance element Adjustable as follows: of Z1G, Z2G, ZRG Earth return compensation 0 to 1000% in 1% steps Mutual coupling compensation (ZRG excluded) 0 to 1000% in 1% steps...
Page 398 6 F 2 S 0 8 5 0 Overvoltage Protection Phase-to-phase element (OVS) Overvoltage thresholds: OFF, 5.0 – 150.0V in 0.1V steps Delay type (1 threshold only): DTL, IDMTL IDMTL Time Multiplier Setting TMS: 0.05 - 100.00 in 0.01 steps DTL delay: Inst, 0.01 - 300.00s in 0.01s steps Dropout / Pickup ratio:...
Page 399 6 F 2 S 0 8 5 0 Accuracy ± 5% ( ± 7% at I < 0.3 × In) Current differential protection: pick-up Distance measuring element ± 5% under SIR < 30, ± 10% under 30 < SIR < 50 Static accuracy ±...
Page 400 6 F 2 S 0 8 5 0 Communication Port Front communication port (local PC) Connection Point to point Cable type Multi-core (straight) Cable length 15m (max.) Connector RS232C 9-pin D-sub miniature connector female Rear communication port (remote PC) RS485 I/F: Transmission data rate for RSM system 64kbps Connection...
Page 401 6 F 2 S 0 8 5 0 CT REQUIREMENT Ideally it would be preferable to employ current transformers that did not saturate; this is particularly desirable if operation of the protection is to be avoided during external faults. However, there are circumstances due to accommodation requirements and occasionally on the basis of cost where this is not always possible.
Page 402 6 F 2 S 0 8 5 0 <Accuracy limit factor of CTs is given> Table K-2 CT Requirement defined by n’ Td [ms] Requirement 1 Requirement 2 n’ I ≧ 3.75 × I n’ I ≧ 7.5 × I fmax f_z1_max n’...
Page 403 6 F 2 S 0 8 5 0 <Step 2> Check the CT satisfies the condition given by table K-3 or K-4 depending on CT types. Each table has 2 requirements. Both must be satisfied. <Knee point voltage of CTs is given> Table K-3 CT Requirement defined by V Td [ms] Requirement 1...
Page 404 6 F 2 S 0 8 5 0 Special case In the case of a 3 terminal-double circuit line configuration, an additional system condition must be considered. It is possible, under certain circumstances, that when an internal fault occurs, out-flowing fault current can also be experienced. In this case, the effect of the out-flowing fault current must be considered when calculating DIFI1 and DIFI2.
Page 405 6 F 2 S 0 8 5 0 Id = Ir - 2DIFI2 Id = 1/6Ir+5/6DIFI1 2DIFI2 X+2Y+Z Fig.K-2 Internal fault in Id-Ir plane including out-flow current In order to ensure that the GRL100 relay will operate correctly in this case, the point shown on the plot must fall within the operating zone.
Page 406 6 F 2 S 0 8 5 0 Max{I /2, I }: The larger of (I /2) and I Lmax fmin fmaxout Lmax fmin fmaxout : Minimum fault current fmin : Maximum out-flowing fault current for the special condition fmaxout <Accuracy limit factor of CTs is given>...
Page 407 6 F 2 S 0 8 5 0 Table K-7 CT Requirement defined by V (Special case) Td [ms] Requirement 1 Requirement 2 ≧ I )×3 > )×14.4 Max{I /2, I ×(R fmax LMAX fmin fmaxout ≧ I )×3 > ×...
Page 408 6 F 2 S 0 8 5 0 Note : The values in the table are based on the following assumption. - 100% DC component is superimposed. - Only one CT is saturated. - No remnance flux is assumed.  407 ...
Page 409 6 F 2 S 0 8 5 0 ENVIRONMENTAL PERFORMANCE CLAIMS Test Standards Details Atmospheric Environment Operating range: -10 ° C to +55 ° C. Temperature IEC60068-2-1/2 Storage / Transit: -25 ° C to +70 ° C. Humidity IEC60068-2-78 56 days at 40 ° C and 93% relative humidity. Enclosure Protection IEC60529 IP51 (Rear: IP20)
Page 410: Appendix L Symbols Used In Scheme Logic
6 F 2 S 0 8 5 0 Appendix L Symbols Used in Scheme Logic  409 ...
Page 411 6 F 2 S 0 8 5 0 Symbols used in the scheme logic and their meanings are as follows: Signal names Marked with : Measuring element output signal Marked with : Signal number Marked with : Signal number and name of binary input by PLC function Signal No.
Page 412 6 F 2 S 0 8 5 0 Signal inversion Output Output Timer Delayed pick-up timer with fixed setting XXX: Set time Delayed drop-off timer with fixed setting XXX: Set time Delayed pick-up timer with variable setting XXX - YYY: Setting range XXX - YYY Delayed drop-off timer with variable setting XXX - YYY: Setting range...
Page 413 6 F 2 S 0 8 5 0  412 ...
Page 414: Appendix M Multi-Phase Autoreclose
6 F 2 S 0 8 5 0 Appendix M Multi-phase Autoreclose  413 ...
Page 415 6 F 2 S 0 8 5 0 Tables 1 and 2 show operations of the multi-phase autoreclose for different faults. The operations of the autoreclose depend on the settings of [ARC-M] and [MA-NOLK]. Cases 1 to 3 show the case when one of the double circuit lines is out of service. In MPAR2 and [MA-NOLK]=FT, only case 1 results in single-phase tripping and multi-phase reclosing.
Page 416 6 F 2 S 0 8 5 0 Table M-2 Reclosing in MPAR3 ([ARC-M]=M3 setting) Tripping and Reclosing (Tripping mode → Reclosing mode) Fault phase Case #1 line #2 line [MA-NOLK] = FT setting [MA-NOLK] = T setting [MA-NOLK] = S+T setting #1 line #2 line #1 line...
Page 417 6 F 2 S 0 8 5 0  416 ...
Page 418: Appendix N Data Transmission Format
6 F 2 S 0 8 5 0 Appendix N Data Transmission Format  417 ...
Page 419 6 F 2 S 0 8 5 0 Transmission Format The data transmission format depends on the communication mode. Figures N-1 and N-2 show the data transmission format that applies to the data transmission between terminals of the transmission lines by the relay. The individual parts of the transmission format are described below.
Page 420 6 F 2 S 0 8 5 0 Table N-1 User Configurable data Transmission data Sending side Receiving side Remarks 12 bits × (Ia, Ib, Ic) 12 bits × (Ia, Ib, Ic) Phase current Fixed. A-MODE: V1 fixed. 4 bits / 1 frame (sent it by 3 frame shared) Positive-sequence A-MODE: V1 fixed.
Page 421 6 F 2 S 0 8 5 0 Next Frame 88 bits Frame 1 Ia Ib 1 1 Ic V1 1 Io 1 CRC header 10 bits 4 1 4 3 1 1 1 1 1 1 1 1 2 1 Fixed SUB2 COM1...
Page 422 6 F 2 S 0 8 5 0 Next 88 bits Frame Frame 1 Ia Ib 1 1 Ic V1 1 Io 1 CRC header 10 bits 4 1 4 3 1 1 1 1 1 1 1 1 2 1 Fixed SUB2 SUB3...
Page 423 6 F 2 S 0 8 5 0 SUB2_COM1 to SUB2_COM12: These commands are assigned to bits (RA∗) for relay address monitoring RYIDSV as default setting. If the RYIDSV is not used, the user can use these commands. If multi-phase autoreclosing function is applied, for example, these commands are assigned to CBDS-A, -B and –C such as shown in Figure N-1.
Page 424: Appendix O Example Of Setting
6 F 2 S 0 8 5 0 Appendix O Example of Setting  423 ...
Page 425 6 F 2 S 0 8 5 0 Segregated-phase Current Differential Element DIF (1) Small current region DIFI1 The characteristic of the DIF for small current region is expressed by the following equation. I d ≥ (1/6)I r + (5/6)DIFI1 Where, DIFI1 defines the minimum operating current.
Page 426 6 F 2 S 0 8 5 0 2. Distance protection 2.1 Power System Data [Example system] A s/s B s/s Line length: 16.8km CT: 600/5A CT: 600/5A VT: 150kV/ 3 : 110V/ 3 VT: 150kV/ 3 : 110V/ 3 •...
Page 427 6 F 2 S 0 8 5 0 2.4 Minimum fault current The minimum fault current I fmin on a protected transmission line is the current of the phase to earth fault on the nearest remote terminal. A s/s B s/s Line length: 16.8km Earth fault GRL100...
Page 428 6 F 2 S 0 8 5 0 Element Contents Setting PSB-TP Trip under PSB Z1CNT Z1 trip mode TPMODE Trip mode STUB STUB protection SOTF-OC SOTF OC trip SOTF-Z1 SOTF Z1 trip SOTF-Z2 SOTF Z2 trip SOTF-Z3 SOTF Z3 trip SOTF-R SOTF ZF trip Z2TP...
Page 429 6 F 2 S 0 8 5 0 2.6 Impedance setting Element Standard setting (Recommended) Setting 80% of protected line reactance 120% or more of protected line reactance 130% 100% of protected line impedance plus 150% 300% of next line section Z3Sθ...
Page 430 6 F 2 S 0 8 5 0 sequence current compensation) × 1.5(operating margin) = 500% of Zline Setting condition of Z4G element The operation zone of the Z4G element includes the operating zone of the Z3G element remote terminal relay. Element Actual impedance k factor...
Page 431 6 F 2 S 0 8 5 0 2.8 Zero sequence compensation In the GRZ100, vector type zero sequence compensation is applied to Zone 1 and Zone 2, and the compensation factor is given in the resistive and reactive components independently. Step 1 Calculate the positive, zero sequence impedance and mutual impedance: Z 1 = [R 1 : 0.0197] + j[X 1 : 0.2747] (ohms)
Page 432 6 F 2 S 0 8 5 0 DEFFV, DEFRV > Max. zero sequence voltage (3V o ) in normal conditions Element Setting DEFFI 2.5 (A) DEFRI 2.5 (A) DEFFV 21.0 (V) DEFRV 21.0 (V) DEFF θ DEFR θ IDMT overcurrent element (EFI) The EFI element should not be operated by the unbalance current present under normal conditions.
Page 433 6 F 2 S 0 8 5 0 Element Setting OCBF 5.1 (A) TBF1 70ms TBF2 140ms 2.10 Undervoltage element Undervoltage element with current compensation (Phase selector) (1) Undervoltage element (UVCV) The UVCV element should be set not to work with the current of the power system. UVCV <...
Page 434 6 F 2 S 0 8 5 0 Time setting = Time delay of PSE + Margin = 12ms + 5ms = 17ms Time setting of earth fault element EF (TEF) This time setting is for time delay of the EF element. If it is set to 3s, the trip/alarm contact will close 3s after detecting an unbalance current (residual current) such as a CT open circuit fault.
Page 435 6 F 2 S 0 8 5 0 2.13 Synchronism check element The synchronism check element setting is as follows. Element Setting SY1UV SY10V SY1 θ 30deg. TSYN1 1.00s TDBL1 0.05s TLBD1 0.05s OVL1 UVL1  434 ...
Page 436: Appendix P Programmable Reset Characteristics And Implementation Of Thermal Model To Iec60255-8
6 F 2 S 0 8 5 0 Appendix P Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8  435 ...
Page 437 6 F 2 S 0 8 5 0 Programmable Reset Characteristics The overcurrent stages for phase and earth faults, OC1 and EF1, each have a programmable reset feature. Resetting may be instantaneous or definite time delayed. Instantaneous resetting is normally applied in multi-shot auto-reclosing schemes, to ensure correct grading between relays at various points in the scheme.
Page 438 6 F 2 S 0 8 5 0 Implementation of Thermal Model to IEC60255-8 Heating by overload current and cooling by dissipation of an electrical system follow exponential time constants. The thermal characteristics of the electrical system can be shown by equation (1). ...
Page 439 6 F 2 S 0 8 5 0 In fact, the cold curve is simply a special case of the hot curve where prior load current I = 0, catering for the situation where a cold system is switched on to an immediate overload. Figure P-3 shows a typical thermal profile for a system which initially carries normal load current, and is then subjected to an overload condition until a trip results, before finally cooling to ambient temperature.
Page 440: Appendix Q Iec60870-5-103: Interoperability
6 F 2 S 0 8 5 0 Appendix Q IEC60870-5-103: Interoperability  439 ...
Page 441 6 F 2 S 0 8 5 0 IEC60870-5-103 Configurator IEC103 configurator software is included in a same CD as RSM100, and can be installed easily as follows: Installation of IEC103 Configurator Insert the CD-ROM (RSM100) into a CDROM drive to install this software on a PC. Double click the “Setup.exe”...
Page 442 6 F 2 S 0 8 5 0 2. Application Layer COMMON ADDRESS of ASDU One COMMON ADDRESS OF ASDU (identical with station address) 3. List of Information The following items can be customized with the original software tool “IEC103 configurator”. (For details, refer to “IEC103 configurator”...
Page 443 6 F 2 S 0 8 5 0 This means that CAUSE OF TRANSMISSION = 7 ‘test mode’ is used for messages normally transmitted with COT=1 (spontaneous) or COT=2 (cyclic). For details, refer to the standard IEC60870-5-103 section 7.4.5. 3.1.6 Blocking of monitor direction If the blocking of the monitor direction is activated in the protection equipment, all indications and measurands are no longer transmitted.
Page 444 6 F 2 S 0 8 5 0 List of Information IEC103 Configurator Default setting Description Contents GI Type Signal No. OFF ON Standard Information numbers in monitor direction System Function End of General Interrogation Transmission completion of GI items. Time Synchronization Time Synchronization ACK.
Page 445 6 F 2 S 0 8 5 0 IEC103 Configurator Default setting Description Contents Type OFF ON Signal NO. Fault Indications Start/pick-up L1 A phase, A-B phase or C-A phase element pick-up No set Start/pick-up L2 B phase, A-B phase or B-C phase element pick-up No set Start/pick-up L3 C phase, B-C phase or C-A phase element pick-up...
Page 446 6 F 2 S 0 8 5 0 IEC103 configurator Default setting Type Description Contents Max. No. Measurands 144 Measurand I <meaurand I> 145 Measurand I,V <meaurand I> 146 Measurand I,V,P,Q <meaurand I> 147 Measurand IN,VEN <meaurand I> Measurand IL1,2,3, VL1,2,3, Ia, Ib, Ic, Va, Vb, Vc, P, Q, f measurand 2, 7 P,Q,f...
Page 447 6 F 2 S 0 8 5 0 IEC103 Configurator Default setting Description Contents Type Control direction Selection of standard information numbers in control direction System functions Initiation of general interrogation Time synchronization General commands Auto-recloser on/off ON/OFF Teleprotection on/off ON/OFF Protection on/off (*1)
Page 448 6 F 2 S 0 8 5 0 Description Contents GRL100 supported Comment Basic application functions Test mode Blocking of monitor direction Disturbance data Generic services Private data Miscellaneous Max. MVAL = rated Measurand value times Current L1 Configurable Current L2 Configurable Current L3 Configurable...
Page 449 6 F 2 S 0 8 5 0 [Legend] GI: General Interrogation (refer to IEC60870-5-103 section 7.4.3) Type ID: Type Identification (refer to IEC60870-5-103 section 7.2.1) 1 : time-tagged message 2 : time-tagged message with relative time 3 : measurands I 4 : time-tagged measurands with relative time 5 : identification 6 : time synchronization...
Page 450 6 F 2 S 0 8 5 0 IEC103 setting data is recommended to be saved as follows: (1) Naming for IEC103setting data The file extension of IEC103 setting data is “.csv”. The version name is recommended to be provided with a revision number in order to be changed in future as follows: ∗∗∗∗∗∗_01.csv First draft: ∗∗∗∗∗∗_02.csv...
Page 451 6 F 2 S 0 8 5 0 Troubleshooting Phenomena Supposed causes Check / Confirmation Object Procedure Communication Address setting is incorrect. Match address setting between BCU and relay. trouble (IEC103 Avoid duplication of address with other relay. communication is Transmission baud rate setting is Match transmission baud rate setting between not available.)
Page 452 6 F 2 S 0 8 5 0 Phenomena Supposed causes Check / Confirmation Object Procedure HMI does not The relevant event sending condition is Change the event sending condition (signal display IEC103 not valid. number) of IEC103 configurator if there is a setting event on the SAS error.
Page 453 6 F 2 S 0 8 5 0  452 ...
Page 454: Appendix R Inverse Time Characteristics
6 F 2 S 0 8 5 0 Appendix R Inverse Time Characteristics  453 ...
Page 455 6 F 2 S 0 8 5 0 IEC/UK Inverse Curves (VI) IEC/UK Inverse Curves (NI) (Time Multiplier TMS = 0.1 - 1.5) (Time Multiplier TMS = 0.1 - 1.5) 0.01 Current (Multiple of Setting) Current (Multiple of Setting) Normal Inverse Very Inverse ...
Page 456 6 F 2 S 0 8 5 0 IEC/UK Inverse Curves (EI) (Time Multiplier TMS = 0.1 - 1.5) 1000 UK Inverse Curves (LTI) (Time Multiplier TMS = 0.1 - 1.5) 1000 0.01 Current (Multiple of Setting) Current (Multiple of Setting) Extremely Inverse Long Time Inverse ...
Page 457 6 F 2 S 0 8 5 0  456 ...
Page 458: Appendix S Failed Module Tracing And Replacement
6 F 2 S 0 8 5 0 Appendix S Failed Module Tracing and Replacement  457 ...
Page 459 6 F 2 S 0 8 5 0 1. Failed module tracing and its replacement If the “ALARM” LED is ON, the following procedure is recommended. If not repaired, contact the vendor. Procedure Countermeasure No failure “ALARM” LED ON? Not displayed Press [VIEW] key Any LCD messages? Contact the vendor.
Page 460 6 F 2 S 0 8 5 0 Table S-1 LCD Message and Failure Location Message Failure location IO3, Channel Discon- AC cable (GCOM) IO5, nector Checksum err × ROM-RAM err × SRAM err × BU-RAM err × DPRAM err ×...
Page 461 6 F 2 S 0 8 5 0 2. Methods of Replacing the Modules CAUTION When handling a module, take anti-static measures such as wearing an earthed wrist band and placing modules on an earthed conductive mat. Otherwise, many of the electronic components could suffer damage. CAUTION After replacing the SPM module, check all of the settings including the PLC and IEC103 setting data are restored the original settings.
Page 462 6 F 2 S 0 8 5 0 5). Unplug the cables. Unplug the ribbon cable running among the modules by nipping the catch (in case of black connector) and by pushing the catch outside (in case of gray connector) on the connector. Gray connector Black connector 6).
Page 463 6 F 2 S 0 8 5 0 9). Lamp Test • RESET key is pushed 1 second or more by LCD display off. • It checks that all LCDs and LEDs light on. 10). Check the automatic supervision functions. •...
Page 464 6 F 2 S 0 8 5 0 Appendix T PLC Setting Sample  463 ...
Page 465 6 F 2 S 0 8 5 0 PLC setting sample for distance protection To enable the distance protection Z1, Z2, Z3 and ZR tripping only when communication failure and differential protection blocked in current differential protection, assign signals by PLC function as follows: (1) Zone 1 Trip Mode Control Circuit First, disconnect all the default PLC settings of Zone 1 Trip Mode Control Circuit shown in Figure...
Page 466 6 F 2 S 0 8 5 0 [Z1CNT] Z1_INST_TP Z1 can trip instantaneously. Z1CNT_INST 1936 Zone 1 Trip Z1 performs three-phase trip. Z1CNT_3PTP 1968 Z1_3PTP Mode [DIF] Z1 performs final tripping for Z1CNT_ARCBLK Control 1847 Z1_ARC_BLOCK all faults. 2015 DIF_OUT Logic "OFF"...
Page 467 6 F 2 S 0 8 5 0 PLC setting sample for autoreclosing (UARCSW application) If the follower Terminal is reclosed after checking the leader Terminal reclosed in the autoreclose mode “SPAR”, the leader Terminal is assigned to the signal number 1 with signal name “CONSTANT_1”...
Page 468 6 F 2 S 0 8 5 0 Appendix U Ordering  467 ...
Page 469 6 F 2 S 0 8 5 0 Ordering 1. Line Differential Protection Relay GRL100 − B − − a. Two-terminal application Relay Type: Line differential protection relay GRL100 Relay Model: -Model700: With distance protection and autoreclose for two-breaker scheme 25 BIs, 19 BOs, 6 trip BOs 28 BIs, 37 BOs, 6 trip BOs Ratings:...
Page 470 6 F 2 S 0 8 5 0 b. Three-terminal application GRL100 − B − − Relay Type: Line differential protection relay GRL100 Relay Model: -Model700: With distance protection and autoreclose for two-breaker scheme 25 BIs, 19 BOs, 6 trip BOs 28 BIs, 37 BOs, 6 trip BOs Ratings: 1A, 50Hz, 110V/125Vdc...
Page 471 6 F 2 S 0 8 5 0 2. Optical Interface Unit (Option) − − G1IF1 Type: Communication interface box G1IF1 Model: For X21 (*) For CCITT-G703-1.2.1 For CCITT-G703-1.2.2 or 1.2.3 For X21 DC auxiliary power supply: DC 48V/54V/60V DC 110V/125V DC 220V/250V Note (*): With outer case.
Page 472 6 F 2 S 0 8 5 0 Version-up Records Version Date Revised Section Contents Feb. 16, 2006 First issue. Nov. 20, 2006 2.2.8 Modified the description and added Figure 2.2.8.1. 2.3 to 2.5, 2,9, 2.10, Modified entirely the description related to distance protection, directional 2.12 to 2.14, 2.16, earth fault protection and over- and under-voltage protection, etc.

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Grl100-702b Grl100-711b Grl100-712b

Toshiba GRL100-701B Instruction Manual

1 Introduction

2 Application Notes

3 Technical Description

4 User Interface

5 Installation

6 Commissioning and Maintenance

7 Putting Relay into Service

Appendix A Block Diagram

Appendix B Signal List

Appendix C Variable Timer List

Appendix D Binary Output Default Setting List

Appendix E Details of Relay Menu and LCD & Button Operation

Appendix F Case Outline

Appendix G Typical External Connection

Appendix H Relay Setting Sheet

Appendix I Commissioning Test Sheet (Sample)

Appendix J Return Repair Form

Appendix K Technical Data

Appendix L Symbols Used in Scheme Logic

Appendix M Multi-Phase Autoreclose

Appendix N Data Transmission Format

Appendix O Example of Setting

Appendix P Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8

Appendix Q IEC60870-5-103: Interoperability

Appendix R Inverse Time Characteristics

Appendix S Failed Module Tracing and Replacement

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