Page 2 6 F 2 S 0 8 4 6 Safety Precautions Before using this product, please read this chapter carefully. This chapter describes the safety precautions recommended when using the GRZ100. 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 4 6 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 4 6 • 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 6 F 2 S 0 8 4 6 Contents Safety Precautions Introduction Application Notes 2.1 Power System Protection - Basic Concepts 2.1.1 The Function of The Protection Relay 2.1.2 Protection Relay Requirements 2.1.4 Distance Relay - General Performance 2.1.5 Power Swing and Out-of-Step 2.1.6 Redundant Configuration of Protection Relay and Improvement of Reliability 2.2 Principle of Distance Measurement...
Page 6 6 F 2 S 0 8 4 6 2.5.6 Voltage and Synchronism Check Elements OVL, UVL, OVB, UVB, and 2.5.7 Current Change Detection Elements OCD and OCDP 2.5.8 Negative Sequence Directional Elements DOCNF and DOCNR 2.5.9 Level Detectors 2.5.10 Fault Detector Elements 2.6 Autoreclose 2.6.1 Application 2.6.2 Scheme Logic...
Page 7 6 F 2 S 0 8 4 6 4.1 Outline of User Interface 4.1.1 Front Panel 4.1.2 Communication Ports 4.2 Operation of the User Interface 4.2.1 LCD and LED Displays 4.2.2 Relay Menu 4.2.3 Displaying Records 4.2.4 Displaying Status Information 4.2.5 Viewing the Settings 4.2.6 Changing the Settings 4.2.7 Testing...
Page 8 6 F 2 S 0 8 4 6 6.7.2 Failure Tracing and Repair 6.7.3 Replacing Failed Modules 6.7.4 Resumption of Service 6.7.5 Storage Putting Relay into Service ⎯ 7 ⎯...
Page 9 6 F 2 S 0 8 4 6 Appendix A Block Diagrams Appendix B Signal List Appendix C Variable Timer List Appendix D Binary Input/Output Default Setting List Appendix E Details of Relay Menu and LCD & Button Operation Appendix F Case Outline Appendix G Typical External Connections...
Page 10 6 F 2 S 0 8 4 6 1. Introduction GRZ100 is a fully numeric distance protection for application to transmission lines on solidly earthed network. The GRZ100 provides the following protection schemes. - Time-stepped distance protection with four forward zones, three reverse zones, and one non-directional zone - Zone 1 extension protection - Command protection (Distance protection using telecommunication)
Page 11 6 F 2 S 0 8 4 6 Either one or two rear ports (RS485 or fibre optic) are provided for connection to a remote PC and for IEC60870-5-103 communication with a substation control and automation system. Further, Ethernet LAN port can be provided as option. Further, the GRZ100 provides the following functions.
Page 12 6 F 2 S 0 8 4 6 Table 1.1.1 shows the measuring elements incorporated. Table 1.1.1 Incorporated Measuring Elements Model 101, 102 201, 202, 301, 203, 204, 302, 303 Measuring elements 205, 206 Z1S, Z1SX, Z2S, Z3S, Distance element (phase fault) ZFS, ZR1S, ZR2S, Z4S, ZNDS Z1G, Z1GX, Z2G, Z3G,...
Page 13 6 F 2 S 0 8 4 6 2. Application Notes 2.1 Power System Protection - Basic Concepts 2.1.1 The Function of The Protection Relay The protection relay, which protects the power system from various faults, plays an extremely important role in power system stability. Its main functions are as follows: Prevention of power supply interruption: Fault clearance and resumption of healthy power transmission as soon as possible.
Page 14 6 F 2 S 0 8 4 6 Busbar Busbar Busbar Line Line :Circuit Breaker Figure 2.1.2.1 Protection Zones Busbar Busbar Line Line Figure 2.1.2.2 Protection Zone and CB, CT c) Reliability: The protection relay is normally in a quiescent state and is available to respond to faults that may occur on the power system in the protection zone.
Page 15 6 F 2 S 0 8 4 6 2.1.3 Main Protection and Backup Protection The power system protection system generally consists of a main protection and a backup protection to reliably remove all faults. In principle, system faults must be removed in the shortest possible time and cause the minimum outage.
Page 16 6 F 2 S 0 8 4 6 voltage at the fault will have a phase angle difference with respect to the local current, producing a measuring error in the distance relay with the principle of measuring the reactance component. The existence of a zero-sequence current on the protected line and adjacent line can also cause errors in the earth fault relay.
Page 17 6 F 2 S 0 8 4 6 Distance protection characteristic (Mho) Impedance locus during out-of-step condition Load Area Figure 2.1.5.2 Impedance Locus during Out-of-Step Condition In the case of a full out-of-step condition (as opposed to a transient power swing) it is desirable to separate the system in the vicinity of the centre of the out-of-step condition.
Page 18 6 F 2 S 0 8 4 6 2.2 Principle of Distance Measurement 2.2.1 Phase Fault The phase-fault distance relay measures the impedance from the relay to the fault point using a delta voltage and current. The positive-sequence impedance is used as the line impedance. The principle is described below.
Page 19 6 F 2 S 0 8 4 6 2.2.2 Earth Fault Figure 2.2.2.1 shows the circuit in the event of a single-phase earth fault. It is not simple to exactly measure the distance up to the fault point for a single-phase earth fault. This is because the impedance of the zero-sequence circuit including the earth return is generally different from the positive-sequence impedance.
Page 20 6 F 2 S 0 8 4 6 V a = V 1 + V 2 + V 0 = Z 1 (I a + (Z 0 − Z 1 )/Z 1 × I 0 + Z 0m /Z 1 × I 0m ) ..(2-11) Where, I a is the current at phase "a"...
Page 21 6 F 2 S 0 8 4 6 2.3 Multi-Terminal Line Protection 2.3.1 Increased Use of Multi-Terminal Lines The number of multi-terminal transmission lines has increased in recent years, mainly for economic reasons. For example, connecting three substations through three-terminal transmission lines can reduce the construction cost considerably compared to connecting substations through individual lines.
Page 22 6 F 2 S 0 8 4 6 2.3.2.2 Current Outfeed in the Event of an Internal Fault In the event of an internal fault in a multi-terminal system, a fault current may flow out of a specific terminal. An example is shown using a three-terminal system with two parallel lines shown in Figure 2.3.2.2.
Page 23 6 F 2 S 0 8 4 6 2.3.2.4 Possible Attenuation of Carrier Wave in Power Line Carrier There are no particular problems related to power line carrier or multi-terminal lines. However, when the distance of the line from a branch point is 1/4, 3/4, 5/4 and 7/4, etc. of the wavelength of the carrier wave, the reflected wave from the branch line may cause considerable attenuation of the carrier signal, and thus care is required in selecting the carrier frequency.
Page 24 6 F 2 S 0 8 4 6 Terminal A Terminal B Terminal C Figure 2.3.3.2 Short-Distance Tapped Line (2) Permissive Overreach Protection (POP) The Permissive Overreach Protection (POP) method carries out tripping on condition that zone 2 of each terminal (or zone 3 depending on the setting) has operated for an internal fault. Accordingly it needs to use a different transmission channel when applied to three terminals.
Page 25 6 F 2 S 0 8 4 6 2.4 Protection Scheme The GRZ100 series has the following protection schemes and is applied to transmission lines of directly earthed networks. The function of high-speed detection and clearance of faults ensures that the disturbance to the power system is kept to a minimum in combination with the built-in autoreclose functions.
Page 26 6 F 2 S 0 8 4 6 Figure 2.4.1.2 shows the quadrilateral characteristics. These have a complex characteristic combining the reactance element, directional element and blinder element. The Z4 for phase faults has an offset characteristic with an offset directional element which assures detection of close-up phase faults.
Page 27 6 F 2 S 0 8 4 6 Zone 1 is set to cover about 80% of the protected line. When GRZ100 is used as the main protection, zone 1 generally provides instantaneous tripping but if used as a backup protection, time delayed tripping can be provided.
Page 28 6 F 2 S 0 8 4 6 To maintain stable operation for close-up three-phase faults which cause the voltages of all phases to drop to 0 or close to 0, zone 1 for phase faults, once operated, changes its element to a reverse offset element.
Page 29 6 F 2 S 0 8 4 6 CRT USE M-PROT_ON 1550 Trip [PSB-Z1] mode Phase S-TRIP & selection control " ON " logic Sigle-phase logic 0.00 - 10.00s tripping command M-TRIP [PSB-Z2] & Three-phase " ON " ≥ 1 tripping 0.00 - 10.00s command...
Page 30 6 F 2 S 0 8 4 6 is established when the binary input signal (PLC signal) CRT_BLOCK is "0" and the scheme switch [CRSCM] is set to "ON" as shown in Figure 2.4.1.6. CRT_BLOCK CRT USE 1601 & [CRSCM] "ON"...
Page 31 6 F 2 S 0 8 4 6 Defalt setting CRT USE Z1CNT_INST Z1_INST_TP Z1 can trip instantaneously. 1696 Zone 1 Trip Z1 performs three-phase trip. Z1_3PTP Z1CNT_3PTP 1712 Mode [Z1CNT] Z1CNT_ARCBLK Z1 performs final tripping for all faults. Control 1655 Z1_ARC_BLOCK Logic...
Page 32 6 F 2 S 0 8 4 6 Depending on the setting of the scheme switch [Z1CNT] or [ARC-M] which selects reclosing mode, single-phase tripping may be converted to a three-phase tripping command. This is not shown in the figure. In case of multi-phase fault, the phase fault measuring zone 1 element Z1S and the two phases of the UVC operate together, the Z1G trip is blocked and the three-phase tripping command M-TRIP is always output.
Page 33 6 F 2 S 0 8 4 6 Element Range Step Default Remarks (0.1 – 250.0Ω 0.1Ω 40.0Ω) BRRS Reverse right blinder reach 0.10 - 20.00Ω 0.01Ω 5.10Ω (0.5 - 100.0Ω 0.1Ω 25.5Ω) ZNDS ZND reach 0.01 - 50.00Ω 0.01Ω 10.00Ω...
Page 34 6 F 2 S 0 8 4 6 Element Range Step Default Remarks (0.1 – 500.0Ω 0.1Ω 50.0Ω) BNDG ZNDG blinder reach 0.10 - 20.00Ω 0.01Ω 12.00Ω (0.5 - 100.0Ω 0.1Ω 60.0Ω) 0 - 1000 % 340% Residual current compensation = R0/R1 0 - 1000 % 340% Residual current compensation = X0/X1...
Page 35 6 F 2 S 0 8 4 6 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 Z1BS Z1 reverse offset reach Fixed to 1.5Ω (Fixed to 7.5Ω)(*1) BFRS θ...
Page 36 6 F 2 S 0 8 4 6 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 37 6 F 2 S 0 8 4 6 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 38 6 F 2 S 0 8 4 6 Blinder setting BFR and BRR reaches are set to the minimum load impedance with a margin. The minimum load impedance is calculated using the minimum operating voltage and the maximum load current. The blinder element (BFR) can be provided for each forward zone.
Page 39 6 F 2 S 0 8 4 6 Setting of earth fault compensation factor (zero sequence compensation) In order to correctly measure the positive-sequence impedance to the fault point, the current input to the earth fault measuring elements is compensated by the residual current (3I 0 ) of the protected line in the case of a single circuit line and by residual current (3I 0 ) of the protected line and residual current (3I 0 ’) of the parallel line in the case of a double circuit line.
Page 40 6 F 2 S 0 8 4 6 V aX : imaginary part of phase “a” voltage V aR : real part of phase “a” voltage I aX : imaginary part of phase “a” current I aR : real part of phase “a” current 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...
Page 41 6 F 2 S 0 8 4 6 effect of charging current cannot be ignored. It appears as a distance measurement error in the fault. To suppress the effect of the charging current and maintain the highly accurate distance measurement capability, the GRZ100 has a charging current compensation function. The compensation is recommended if the minimum fault current can be less than three times the charging current.
Page 42 6 F 2 S 0 8 4 6 When autoreclose is out of service, the zone 1 extension protection is blocked. Time Zone R Zone 3 Zone 2 Zone 1 Zone 1X Figure 2.4.2.1 Time/Distance Characteristics of Zone 1 Extension Protection and Time-Stepped Distance Protection Scheme Logic The scheme logic of the zone 1 extension protection is shown in Figure 2.4.2.2.
Page 43 6 F 2 S 0 8 4 6 respond to a reclose-on-to-fault. Fault inception Closed Open Circuit breaker REC- READY1 Reclaim time Reclaim time Trip Auto - reclose Figure 2.4.2.3 Sequence Diagram of Zone 1 Extension Zone 1 extension executes single-phase tripping and autoreclose for single-phase to earth faults when the reclosing mode selection switch [ARC-M] is set to "SPAR &...
Page 44 6 F 2 S 0 8 4 6 the reclosing mode of the autoreclose. 2.4.3 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 45 6 F 2 S 0 8 4 6 TSBCT 0.00 – 1.00s R1-CR ≥ 1 "Z2" & S-TRIP Phase TCHD & Selection [ZONESEL] M-TRIP & ≥ 1 0-50m s "Z3" & CS (Carrier send) signal 1842 PSCM_TCHDEN [PSB-CR] Signal No. Signal nam e 225: EXT_CAR-S...
Page 46 6 F 2 S 0 8 4 6 forward overreaching elements at both terminals. It is possible to use zone 2 or zone 3, as the forward overreaching element. The POP is provided with an echo function and weak infeed trip function so that even when the protection is applied to a line with open terminal or weak infeed terminal, it enables fast tripping of both terminals for any fault along the whole length of the protected line.
Page 47 6 F 2 S 0 8 4 6 TECCB CB-OR & 0.00 - 200.00s R1-CR ≥ 1 ≥ 1 & & TREBK ≥ 1 20ms 0.00-10.00s & TSBCT 0.00 – 1.00s & ≥ 1 (∗) & Phase S-TRIP Selection M-TRIP "Z2"...
Page 48 6 F 2 S 0 8 4 6 Element Range Step Default Remarks ECHO OFF/ON Echo function WKIT OFF/ON Weak infeed trip function (*) 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.
Page 49 6 F 2 S 0 8 4 6 In this system, the transmitted signal is a trip block signal, and transmission of that signal is required only in the case of external faults. Therefore, even if power line carrier is used, a failure to operate or false operation due to attenuation of the signal would not be experienced.
Page 50 6 F 2 S 0 8 4 6 • The forward overreaching element operates. • The undervoltage element UVL (UVLS or UVLG) operates and the forward overreaching and the reverse looking elements do not operate. The latter is implemented when the weak infeed trip function is selected. To select the faulted phase reliably, phase selection is performed using the phase selection element UVC.
Page 51 6 F 2 S 0 8 4 6 Element Range Step Default Remarks (0.5 - 100.0Ω 0.1Ω 25.5Ω) TCHD 0 - 50 ms 1 ms 12 ms Channel delay time TREBK 0.00 - 10.00s 0.01s 0.10s Current reversal block time TSBCT 0.00 –...
Page 52 6 F 2 S 0 8 4 6 2.4.3.4 Blocking Overreach Protection Application In blocking overreach protection (BOP), each terminal normally transmits a trip permission signal, and transmits a trip block signal if the reverse looking Z4 operates and the forward overreaching element does not operate.
Page 53 6 F 2 S 0 8 4 6 UVC. The phase selection logic is described in Section 2.4.3.7. & & TREBK ≥ 1 20ms 0.00 – 10.00s R1-CR TSBCT TCHD "Z2" [ZONESEL] & 0.00 – 1.00s & S-TRIP Phase 0 - 50ms Selection "Z3"...
Page 54 6 F 2 S 0 8 4 6 Element Setting Remarks Z4BG θ(*3) Interlinked with ZBG θ Angle of Z4 directional element BRRG θ Fixed to 75° Angle of reverse right blinder BRRG BRLG Interlinked with BRRG Reverse left blinder BRLG θ...
Page 55 6 F 2 S 0 8 4 6 The echo function can be disabled by the scheme switch [ECHO] and the PLC signal ECHO_BLOCK. The setting element necessary for the echo function and its setting range is as follows: Element Range Step Default...
Page 56 6 F 2 S 0 8 4 6 to the reclosing mode of the autoreclose function. The weak infeed trip function can be disabled by the scheme switch [WKIT] and the PLC signal WKIT_BLOCK. 2.4.3.6 Measure for Current Reversal In response to faults on parallel lines, sequential opening of the circuit breaker may cause a fault current reversal on healthy lines.
Page 57 6 F 2 S 0 8 4 6 CRL will last for the TREBK setting even after the condition above ceases to exist. TREBK "Z2" ≥1 20ms 0.01 – 10.00s [ZONESEL] 214:REV_BLK & "Z3" Figure 2.4.3.8 Current Reversal Logic The operation of the current reversal logic and its effect in the event of a fault shown in Figure 2.4.3.7 (a) are as follows.
Page 58 6 F 2 S 0 8 4 6 UVC - A & UVC - B & S - TRIP UVC - C & Z3G - A & Z3G - B ≥1 ≥1 & & Z3G - C & TRIP ≥1 Z3S - AB M - TRIP &...
Page 59 6 F 2 S 0 8 4 6 Signaling Equipment Signal Receiving Trip Logic Level R1-CH1 Inversion Guard or Trip Logic Level R1-CH2 Signal Inversion Sending Logic Level BO13 Trip Inversion (*) Logic Level Test Inversion (*) Logic Level S-DEF2 Trip Inversion (*) (or S-DEFBOP2)
Page 60 6 F 2 S 0 8 4 6 "Single" [CHSEL] "And" & R1-CR "Guard" R1-CH1 & ≥1 & R1-CH2 R1-CF & "Guard" 20ms 150ms 100ms ≥1 "CH1" R1-CR-DEF & [CH-DEF] "CH2" & & "(PUP+DEF)" [SCHEME] "(POP+DEF)", "(UOP+DEF)", "(BOP+DEF)" Figure 2.4.3.11 Signal Receive Logic Selecting "And"...
Page 61 6 F 2 S 0 8 4 6 2.4.4 Directional Earth Fault Protection For a high-resistance earth fault for which the impedance measuring elements cannot operate, the GRZ100 uses a directional earth fault element (DEF) to provide the following protections. •...
Page 62 6 F 2 S 0 8 4 6 2.4.4.1 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 63 6 F 2 S 0 8 4 6 When the PUP+DEF scheme logic is selected, the DEF scheme logic is constructed same as the DEF POP scheme logic in Figure 2.4.4.3. The signal transmitted is a trip permission signal for the POP and a trip block signal for the UOP. In the event of an internal fault, the POP transmits a signal, while the UOP stops transmission.
Page 64 6 F 2 S 0 8 4 6 R1-CR-DEF(POP) ≥ 1 & & R1-CR-DEF(UOP) (POP) & DEFFCR 50ms DEFRY & ≥ 1 ECHO1_DEF-R1 250ms 200ms (UOP) & "Z2" [ECHO] CS (Carrier send) signal [ZONESEL] Signal No. Signal name "ON" 225: EXT_CAR-S for Distance and DEF command CB-OR "Z3"...
Page 65 6 F 2 S 0 8 4 6 With the BOP, the signal transmitted is a trip block signal. When the reverse looking DEFR operates, the logic level of the transmit signal CS becomes 1 and a trip block signal is transmitted. When the trip block signal is received, R1-CR-DEF becomes 1.
Page 66 6 F 2 S 0 8 4 6 2.4.4.2 Directional Earth Fault Protection The scheme logic is shown in Figure 2.4.4.1. The directional inverse or definite time earth fault protection as backup protection executes three-phase final tripping. The forward looking DEFF or reverse looking DEFR can be selected. The directional inverse and definite time earth fault protections are available to trip instantaneously by binary input DEF∗_INST-TRIP except for [DEF∗EN]= “OFF”...
Page 67 6 F 2 S 0 8 4 6 [EFIBT], and also can be disabled by the binary input signals (PLC signals) OC_BLOCK, OCI_BLOCK, EF_BLOCK and EFI_BLOCK. The EF element issues an alarm for the backup trip for earth fault. The alarm can be disabled by the scheme switch [EFBTAL]. The OC and EF protections can trip instantaneously by PLC signals OC_INST_TP and EF_INST_TP.
Page 68 6 F 2 S 0 8 4 6 • standard inverse IEC 60255-3 • very inverse IEC 60255-3 • extremely inverse IEC 60255-3 The IDMT element has a reset feature with definite time reset. If the reset time is set to instantaneous, then no intentional delay is added. As soon as the energising current falls below the reset threshold, the element returns to its reset condition.
Page 69 6 F 2 S 0 8 4 6 Figure 2.4.5.2 Current Settings in Radial System Time setting Time setting is performed to provide selectivity in relation to the relays on adjacent lines. Consider a minimum source impedance when the current flowing in the relay becomes a maximum. In Figure 2.4.5.2, in the event of a fault at the near end, F2 of the adjacent line, the operating time is set so that terminal A may operate by time grading Tc behind terminal B.
Page 70 6 F 2 S 0 8 4 6 Setting The setting elements necessary for the definite time overcurrent backup protection and their setting ranges are shown below. Element Range Step Default Remarks 0.5 - 100.0 A 0.1 A 6.0 A Phase overcurrent ( 0.1 - 20.0 A 0.1 A...
Page 71 6 F 2 S 0 8 4 6 ⎡ ⎤ t =τ· ⎢ ⎥ − ⎣ ⎦ ⎡ ⎤ − t =τ· ⎢ ⎥ − ⎢ ⎥ ⎣ ⎦ where: t = time to trip for constant overload current I (seconds) I = overload current (largest phase current) (amps) = allowable overload current (amps) = previous load current (amps)
Page 72 6 F 2 S 0 8 4 6 The alarming and tripping can be disabled by the scheme switches [THMAL] and [THMT] respectively or binary input signals THMA_BLOCK and THM_BLOCK. THM_ALARM & & THM_TRIP [THMAL] "ON" [THMT] "ON" THMA_BLOCK 1615 THM_BLOCK 1631 Figure 2.4.6.2 Thermal Overload Protection Scheme Logic...
Page 73 6 F 2 S 0 8 4 6 2.4.7 Switch-Onto-Fault Protection 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 74 6 F 2 S 0 8 4 6 Element Range Step Default Remarks SOTF - OC OFF/ON Overcurrent tripping SOTF - Z1 OFF/ON Zone 1 tripping SOTF - Z2 OFF/ON Zone 2 tripping SOTF - Z3 OFF/ON Zone 3 tripping SOTF - F OFF/ON Zone F tripping...
Page 75 6 F 2 S 0 8 4 6 2.4.9 Overvoltage and Undervoltage Protection 2.4.9.1 Overvoltage Protection GRZ100 provides four independent overvoltage 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. OVS1 and OVG1 are programmable for inverse time (IDMT) or definite time (DT) operation.
Page 76 6 F 2 S 0 8 4 6 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 2.4.9.1 IDMT Characteristic Scheme Logic Figures 2.4.9.2 and 2.4.9.4 show the scheme logic of the OVS1 and OVG1 overvoltage protection with selective definite time or inverse time characteristic.
Page 77: Table Of Contents
6 F 2 S 0 8 4 6 TOS1 & & OVS1-AB_TRIP ≥1 OVS1 BC & & OVS1-BC_TRIP ≥1 & & OVS1-CA_TRIP ≥1 0.00 - 300.00s [OVS1EN] ≥1 "DT" & ≥ 1 OVS1_TRIP "IDMT" ≥1 & OVS1_INST_TP 1808 & 1856 OVS1_BLOCK Figure 2.4.9.2 OVS1 Overvoltage Protection TOS2...
Page 78: [Ovs1En
6 F 2 S 0 8 4 6 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 79 6 F 2 S 0 8 4 6 Definite time reset The definite time resetting characteristic is applied to the UVS1 and UVG1 elements when the inverse time delay is used. If definite time resetting is selected, and the delay period is set to instantaneous, then no intentional delay is added.
Page 80: Idmt" ≥1
6 F 2 S 0 8 4 6 definite time characteristic. The UV∗2 gives the PLC signal UV∗2_ALARM through delayed pick-up timer TU∗2. The UV∗2_ALARM can be blocked by incorporated scheme switch [UV∗2EN] and the PLC signal UV∗2_BLOCK. These protections are also available to alarm instantaneously by the PLC signal UV∗2_INST_TP. In addition, there is user programmable voltage threshold UVSBLK and UVGBLK.
Page 81 6 F 2 S 0 8 4 6 TUG2 & & UVG2-A_ALM ≥1 UVG2 B & & UVG2-B_ALM ≥1 [UVG2EN] & & UVG2-C_ALM ≥1 "ON" NON UVGBLK 0.00 - 300.00s ≥ 1 UVG2_ALARM & & UVG2_INST_TP 1821 & UVG2_BLOCK 1869 Figure 2.4.9.10 UVG2 Undervoltage Protection Setting The table shows the setting elements necessary for the undervoltage protection and their setting...
Page 82 6 F 2 S 0 8 4 6 2.4.10 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 83 6 F 2 S 0 8 4 6 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 84 6 F 2 S 0 8 4 6 Scheme Logic Figure 2.4.10.3 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 the PLC signal BCD BLOCK. TBCD BCD_TRIP &...
Page 85 6 F 2 S 0 8 4 6 2.4.11 Breaker Failure Protection When fault clearance fails due to a breaker failure, the breaker failure protection (BFP) clears the fault by backtripping adjacent circuit breakers. If the current continues to flow even after a trip command is output, the BFP judges it as a breaker failure.
Page 86 6 F 2 S 0 8 4 6 If the OCBF continues to operate, a retrip command is given to the original breaker after the setting time of TBF1. Unless the breaker fails, the OCBF is reset by retrip. TBF2 does not time-out and the BFP is reset.
Page 87 6 F 2 S 0 8 4 6 Setting The setting elements necessary for the breaker failure protection and their setting ranges are as follows: Element Range Step Default Remarks OCBF 0.5 – 10.0 A 0.1 A 4.0 A Overcurrent setting (0.1 - 2.0 A 0.1 A 0.8 A) (*)
Page 88 6 F 2 S 0 8 4 6 2.4.12 Out-of-Step Protection Application For an out-of-step condition on a power system, power system separation is executed in order to recover power system stability or prevent the failure from extending to the entire system. Power system separation by the distance protection with several operating zones is not desirable because it is not always carried out at the optimal points.
Page 89 6 F 2 S 0 8 4 6 OST-ZM TOST1 & ≥1 & OST_TRIP 0.01 - 1.0s & (M-TRIP) & 100ms OST_BO & & "TRIP" [OST] "BO" OST-ZN TOST2 & ≥1 0.01 - 1.0s & & ≥1 OST_BLOCK 1630 Figure 2.4.12.2 Out-of-Step Tripping Logic Setting The setting elements for the out-of-step protection and their setting ranges are as follows: Element...
Page 90 6 F 2 S 0 8 4 6 2.4.13 Voltage Transformer Failure Supervision When a fault occurs in the secondary circuit of the voltage transformer (VT), the voltage dependent measuring elements may operate incorrectly. GRZ100 incorporates a VT failure 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.
Page 91 6 F 2 S 0 8 4 6 CB-AND VTF1_ALARM 142:UVFSOR UVFS ≥1 140:UVFGOR & UVFG 63:OCD-A ≥1 VTF1 64 OCD-B 100ms 65:OCD-C VTF_ALARM ≥1 [VTF1EN] "ON", “OPT-ON” VTF2_ALARM 0.2s & ≥1 VTF2 100ms 173:VTF [VTF2EN] NON VTF ≥1 & "ON", “OPT-ON”...
Page 92 6 F 2 S 0 8 4 6 2.4.14 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 93 6 F 2 S 0 8 4 6 PSBSZ and PSBGZ have same functions and characteristics as shown in Figures 2.4.14.1 and 2.4.14.2, and block tripping of phase and earth fault elements respectively. 49:PSBSOUT-AB 50:PSBSOUT-BC 51:PSNSOUT-CA PSBSOUT TPSB 323:PSBSIN-AB 324:PSBSIN-BC &...
Page 94 6 F 2 S 0 8 4 6 When an internal fault occurs during the power swing and all of the following conditions are established, C/R SEND-PSB (PSB-CS) becomes 1 and the trip permission signal is sent for the PUP or POP, and the trip block signal sending is stopped for the UOP or BOP as shown in Figure 2.4.14.4.
Page 95 6 F 2 S 0 8 4 6 Element Range Step Default Remarks DOCNF 4.0 A fixed Forward looking negative ( 0.8A fixed) sequence directional element 6 V fixed DOCNR 4.0 A fixed Reverse looking negative ( 0.8A fixed) sequence directional element 6 V fixed PSB-Z1 OFF/ON...
Page 96 6 F 2 S 0 8 4 6 2.4.15 Tripping Output Signals The single-phase tripping signals drive the high-speed tripping output relays according to the tripping logic in Figure 2.4.15.1. Two sets of output relays are provided for each phase and each relay has one normally open contact.
Page 97 6 F 2 S 0 8 4 6 ≥1 TRIP Tripping output relay A-phase ≥1 ≥1 trip 60ms TP-A1 by PLC B-phase S-TRIP ≥1 trip ≥1 60ms TP-B1 by PLC C-phase ≥1 trip ≥1 TP-C1 60ms by PLC ≥1 A-phase &...
Page 98 6 F 2 S 0 8 4 6 2.4.16 Fault Detector GRZ100 model 400s and 500s are provided with a fault detector (FD) which functions as a check relay and enhances security, or prevents false tripping due to a single failure in the protection system.
Page 99 6 F 2 S 0 8 4 6 Lever Four pairs of pins Connector Front Rear plug Ribbon cable receptacle Figure 2.4.16.2 FD Module • Short-circuit the pins 1-2 (located topmost) for the J1 to disable the OCMF. Short-circuit the pins 3-4 (located second from the top) for the J1 to disable the OCDF. •...
Page 100 6 F 2 S 0 8 4 6 short-circuited. Figure 2.4.16.3 shows the tripping output circuit when the FD is in service. The checking output contact is connected with A- to C-phase tripping output contacts in series. They are connected outside the relay as shown by the broken line.
Page 101 6 F 2 S 0 8 4 6 2.5 Characteristics of Measuring Elements 2.5.1 Distance Measuring Elements Z1, Z1X, Z2, ZF, Z3, Z4, ZR1, ZR2, ZND and PSB The GRZ100 provides eight distance measuring zones with mho-based characteristics or quadrilateral characteristics. As shown in Figure 2.5.1.1, mho-based zone characteristics are composed of mho element, offset mho element, impedance element, reactance element, and blinder element for phase fault protection and earth fault protection.
Page 102 6 F 2 S 0 8 4 6 blocking in the command schemes, and its offset is not limited by the zone 1 reach setting. It is fixed at 7.5Ω (or 1.5Ω) in order to give reliable, fast blocking for a close-up reverse fault. ZNDS ZNDG BFRG...
Page 103 6 F 2 S 0 8 4 6 PSBZ PSBOUT PSBIN PSBZ PSBZ PSBZ Figure 2.5.1.4 Power Swing Blocking Element 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 104 6 F 2 S 0 8 4 6 Both the phase fault mho element and earth fault mho element of the GRZ100 employ a dual polarization (self-polarization plus cross-polarization). Its polarizing voltage Vp is expressed by the following equations. For B-to-C-phase phase fault element V pbc = 3 (V a −...
Page 105 6 F 2 S 0 8 4 6 where, V = fault voltage I = fault current Zs = zone reach setting Zso = offset zone reach setting Figure 2.5.1.7 is a voltage diagram showing the offset mho characteristics obtained by the phase comparison between S1 and S2.
Page 106 6 F 2 S 0 8 4 6 A decision to operate is made 6 times in each power frequency cycle using the above-mentioned equation. The reactance element operates when two consecutive measurements are made if the distance to a fault is within 90% of the reach setting. If the distance to a fault is more than 90%, the reactance element operates when four consecutive measurements are made.
Page 107 6 F 2 S 0 8 4 6 The characteristic of the BFR is obtained by the following equation. X ≥ (R − Rs) tan 75° where, R = resistance component of measured impedance X = reactance component of measured impedance Rs = reach setting The characteristic BFL is obtained by the following equation.
Page 108 6 F 2 S 0 8 4 6 Directional element The directional element is used for the quadrilateral four zone characteristics. θ Figure 2.5.1.10 Directional Element 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...
Page 109 6 F 2 S 0 8 4 6 Reactance Blinder Directional Figure 2.5.1.11 Quadrilateral characteristic Offset directional element The offset directional element is used only in Z4 for phase faults in the quadrilateral four zone characteristics. θ Figure 2.5.1.12 Offset Directional Element The characteristic of the offset directional element is obtained by the following equation.
Page 110 6 F 2 S 0 8 4 6 2.5.2 Phase Selection Element UVC The phase selection element has the undervoltage characteristic shown in Figure 2.5.2.1 and is used to select a faulty phase in case of a single-phase-to-earth fault. θ Figure 2.5.2.1 Phase Selection Element The characteristic is obtained by a combination of the equations below.
Page 111 6 F 2 S 0 8 4 6 DEFR DEFF I sr −3V 0 θ + 180° φ θ 3I 0 I sf Figure 2.5.3.1 Directional Earth Fault Element The operation decision is made using the following equation. DEFF ⋅ cos(φ − θ) ≥ I sf ≥...
Page 112 6 F 2 S 0 8 4 6 2.5.4 Inverse Definite Minimum Time (IDMT) OC, EF, DEF Elements As shown in Figure 2.5.4.1, the IDMT element has one long time inverse characteristic and three inverse time characteristics in conformity with IEC 60255-3. One of these characteristics can be selected.
Page 113 6 F 2 S 0 8 4 6 Very Inverse 13.5 t = T × (I/Is) − 1 Extremely Inverse t = T × − 1 (I/Is) where, t = operating time I = fault current Is = current setting T = time multiplier setting Definite time reset The definite time resetting characteristic is provided.
Page 114 6 F 2 S 0 8 4 6 Operation of the impedance measuring element Z1 is expressed by the following equations. −OSTXB ≤ X ≤ OSTXF (R − OSTR1)tan75° ≤ X ≤ (R − OSTR2)tan75° where, X = measured reactance R = measured resistance OSTXB, OSTXF = reactive reach setting OSTR1, OSTR2 = resistive reach setting...
Page 115 6 F 2 S 0 8 4 6 SY1UV = upper voltage setting The phase difference is checked by the following equations. VB ⋅ VL cos θ ≥ 0 VB ⋅ VL sin (SY1θs) ≥ VB ⋅ VL sinθ where, θ...
Page 116 6 F 2 S 0 8 4 6 2.5.8 Negative Sequence Directional Elements DOCNF and DOCNR There are two types of negative sequence directional element, the forward looking element (DOCNF) and reverse looking element (DOCNR). They are used to detect faults during a power swing.
Page 117 6 F 2 S 0 8 4 6 2.5.9 Level Detectors In addition to those explained above, GRZ100 has overcurrent, overvoltage, and undervoltage level detectors described below. All level detectors except for undervoltage level detectors UVFS and UVFG, and overcurrent level detector OCBF which require high-speed operation, operate in a similar manner.
Page 118 6 F 2 S 0 8 4 6 2.5.10 Fault Detector Elements The fault detector incorporates the following six fault detection elements. Multi-level overcurrent element OCMF The OCMF is used as a fault detector for the out-of-step protection. The current fluctuates in an out-of-step situation. To detect this current securely, the OCMF has seven current level detectors.
Page 119 6 F 2 S 0 8 4 6 Single Shot & ≥1 OCMF Output & • • • • • • • • • & Figure 2.5.10.2 OCMF Output Logic Current change detection element OCDF The characteristic of the OCDF is same as the OCD element, see Section 2.5.7. Undervoltage change detection element UVDF The UVDF operates if a voltage drops by 7 percent compared to that of one cycle before.
Page 120 6 F 2 S 0 8 4 6 2.6 Autoreclose 2.6.1 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 gases caused by the fault arc have de-ionized.
Page 121 6 F 2 S 0 8 4 6 Single- and three-phase autoreclose: In this autoreclose mode, single-phase tripping and reclosing are performed if a single-phase fault occurs, while three-phase tripping and reclosing are performed if a multi-phase fault occurs. This reclosing mode is simply expressed as "SPAR & TPAR" in the following descriptions. Shingle-shot autoreclose can be applied to one-breaker reclosing and two-breaker reclosing in the one-and-a-half breaker busbar system.
Page 122 6 F 2 S 0 8 4 6 2.6.2 Scheme Logic 2.6.2.1 One-breaker Autoreclose Figure 2.6.2.1 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 (CB1 READY=1), the autoreclose mode by the switch [ARC-M] or the PLC is set to "SPAR", "TPAR"...
Page 123 6 F 2 S 0 8 4 6 time-delayed backup protection (BUP =1). • When an autoreclose prohibiting binary input signal is applied (ARC_BLOCK =1) If autoreclosing is not ready, a three-phase tripping command M-TRIP is output for all tripping modes.
Page 124 6 F 2 S 0 8 4 6 As shown in the figure, if an evolving fault occurs before TEVLV is picked up, three-phase tripping is performed. If this occurs, TSPR and TEVLV are reset, and TTPR1 is now started. After TTPR1 is picked up, three-phase reclosing is performed based on the status of the voltage and synchronism check elements output signal SYN-OP.
Page 125 6 F 2 S 0 8 4 6 Setting of [VCHK] Energizing control Reclosed under "live bus and dead line" condition or with synchronism check Reclosed under "dead bus and live line" condition or with synchronism check Reclosed with synchronism check only. Reclosed without voltage and synchronism check.
Page 126 6 F 2 S 0 8 4 6 Distance Measuring Busbar or line voltages Voltage check & Synchronism check Line or busbar V ref reference voltage [VTPH - SEL] "A" "B" "C" [VT - RATE] "PH/PH" "PH/G" [3PH - VT] "Bus"...
Page 127 6 F 2 S 0 8 4 6 STEP COUNTER [ARC-SM] ≥1 "S2", "S3", "S4" CLOCK MSARC ARC1 & MSARC1 & 5 - 300s ≥ 1 ≥ 1 TS2R MULT.ARC MSARC1 0.1s 5 - 300s & ARC1 MSARC2 ≥ 1 &...
Page 128 6 F 2 S 0 8 4 6 Use of external automatic reclosing equipment To use external automatic reclosing equipment instead of the built-in autoreclose function of the GRZ100, the autoreclose mode is set to "EXT1P" or "EXT3P". When "EXT1P" is selected, the GRZ100 performs single-phase tripping for a single-phase fault and three-phase tripping for a multi-phase fault.
Page 129 6 F 2 S 0 8 4 6 Setting of [ARC-CB] Autoreclose mode Single-phase autoreclose: Both breakers are reclosed simultaneously.(*1) Three-phase autoreclose: The center breaker is reclosed first. If successful, then the busbar breaker is reclosed. Note : " " is set only when the relay is applied to a one-breaker system. Trip and reclose commands are output only for CB1(bus CB).
Page 130 6 F 2 S 0 8 4 6 The start of the dead time counter can be configured by the PLC. In the default setting, the single-phase autoreclose is started instantaneously after tripping, and the three-phase autoreclose is started after the ARC-SET condition is satisfied. The “ARC-SET”...
Page 131 6 F 2 S 0 8 4 6 Requirement Default setting Reclose requirement [R.F-ST.REQ] = CONSTANT_0 (No used) Reclose start requirement "SPAR" [SPR.F2-REQ] = CONSTANT_0 (No used) "TPAR" [TPR.F2-REQ] = CONSTANT_0 (No used) Figure 2.6.2.8 shows the energizing control scheme of the two circuit breakers in the three-phase autoreclose.
Page 132 6 F 2 S 0 8 4 6 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 133 6 F 2 S 0 8 4 6 Element Range Step Default Remarks SYN1 Synchronism check SY1 θ 5 - 75° 1° 30° SY1UV 10 - 150 V 83 V SY1OV 10 - 150 V 51 V 10 - 150 V 51 V Live bus check 10 - 150 V...
Page 134 6 F 2 S 0 8 4 6 To determine the dead time, it is essential to find an optimal value while taking factors, de-ionization time and power system stability, into consideration which normally contradict one other. Normally, a longer de-ionization time is required for a higher line voltage or larger fault current. For three-phase autoreclose, the dead time is generally 15 to 30 cycles.
Page 135 6 F 2 S 0 8 4 6 2.7 Fault Locator 2.7.1 Application The fault locator incorporated in the GRZ100 measures the distance to fault on the protected line using local voltages and currents. The measurement result is expressed as a percentage (%) of the line length and the distance (km) and is displayed on the LCD on the relay front panel.
Page 136 6 F 2 S 0 8 4 6 Distance calculation for earth fault (in the case of A-phase earth fault) ⋅ × ") α ⋅ α ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ α ⋅ ⋅ ⋅ ⋅ ⋅ × α "...
Page 137 6 F 2 S 0 8 4 6 • zone F trip • zone 1 extension trip • external main protection trip 2.7.4 Displaying Location The measurement result is stored in the "Fault record" and displayed on the LCD of the relay front panel or on the local or remote PC.
Page 138 6 F 2 S 0 8 4 6 current of the parallel line is used in order for the earth fault measuring element to correctly measure the impedance. In the case of single circuit line, the switch [FL-Z0B] is set to "OFF". Item Range Step...
Page 139 6 F 2 S 0 8 4 6 3. Technical Description 3.1 Hardware Description 3.1.1 Outline of Hardware Modules The GRZ100 models are classified into two types by their case size. Models 101, 102, 201, 204 and 301 have type A cases, while models 202, 203, 205, 206, 302, 303, 401 and 501 have type B cases.
Page 140 6 F 2 S 0 8 4 6 IO#3 IO#2 SPM IO#1 IO#1: IO1(Model 102, 201, 301), IO8(Model 204) IO#2: IO2 IO#3: IO3(Model 102, 201, 301), IO6(Model 204) Figure 3.1.1.2 Hardware Structure (Model: 102, 201, 204, 301) IO#2 SPM IO#1 IO#3 IO#1: IO1(Model 202, 302), IO8(Model 205) IO#2: IO2...
Page 141 6 F 2 S 0 8 4 6 IO#2 SPM IO#4 IO#1 IO#3 IO#1: IO1(Model 203, 303), IO8(Model 206) IO#2: IO2 IO#3: IO4(Model 203, 303), IO5(Model 206) IO#4: IO4 Figure 3.1.1.4 Hardware Structure (Model: 203, 206, 303) IO#2 SPM IO#4 IO#1 IO#3 IO#1: IO1...
Page 142 6 F 2 S 0 8 4 6 The relationship between each model and module used is as follows: Models 102, 201 Module × × × × × × × × × × × × × × × × × ×...
Page 143 6 F 2 S 0 8 4 6 Binary I/O Module (IO#1) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15(IO1) or Binary input ×12(IO8) CT×5 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1 AC input...
Page 144 6 F 2 S 0 8 4 6 Binary I/O Module (IO#1) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15(IO1) or Binary input ×12(IO8) CT×5 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1 AC input...
Page 145 6 F 2 S 0 8 4 6 Binary I/O Module (IO#1) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15(IO1) Binary input CT×5 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1 AC input ×6(IO1) command...
Page 146 6 F 2 S 0 8 4 6 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 147 6 F 2 S 0 8 4 6 3.1.3 Signal Processing 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 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 148 6 F 2 S 0 8 4 6 3.1.4 Binary Input and Output Module 3.1.4.1 IO1 and IO8 Module IO1 and IO8 provide a DC/DC converter, binary inputs and binary outputs for tripping. As shown in Figure 3.1.4.1, the IO1 module incorporates a DC/DC converter, 15 photo-coupler circuits (BI) for binary input signals and 6 auxiliary relays (TP-A1 to TP-C2) dedicated to the circuit breaker tripping command.
Page 149 6 F 2 S 0 8 4 6 IO8 module Line filter DC/DC converter (−) supply Photo-coupler Auxiliary relay (high speed) Tripping Binary command input (× 3) signals (× 12) Figure 3.1.4.2 IO8 Module ⎯ 148 ⎯...
Page 150 6 F 2 S 0 8 4 6 3.1.4.2 IO2 Module As shown in Figure 3.1.4.3, the IO2 module incorporates 3 photo-coupler circuits (BI) for binary input signals, 14 auxiliary relays (BOs and FAIL ) for binary output signals and an RS485 transceiver.
Page 151 6 F 2 S 0 8 4 6 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 152 6 F 2 S 0 8 4 6 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 153 6 F 2 S 0 8 4 6 3.1.5 Human Machine Interface (HMI) Module The operator can access the GRZ100 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 154 6 F 2 S 0 8 4 6 Liquid crystal display Light emitting diode 204B-21-10 100/110/115/120V Operation keys Monitoring jack • RS232C connector Figure 3.1.5.1 Front Panel ⎯ 153 ⎯...
Page 155 6 F 2 S 0 8 4 6 3.1.6 Fault Detector Module Models 400 and 500 series have an independent fault detector in the form of a check relay, and provide the highest order of security against non-power system fault tripping. As shown in Figure 3.1.6.1, the fault detector module consists of an analog filter, multiplexer, analog to digital (A/D) converter, main processing unit (MPU) and output auxiliary relays.
Page 156 6 F 2 S 0 8 4 6 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 each of the GRZ100 models and their respective input terminal numbers. The AC input signals are input via terminal block TB1 for all models.
Page 157 6 F 2 S 0 8 4 6 Table 3.2.1.2 Default Binary Input Allocation Model Model NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,FD 2CB-ARC,FD 1CB-ARC,NO-FD CB1-A CB1-A CB1-B CB1-B CB1-C CB1-C Signal Receive(CH1) Signal Receive(CH1) Signal Receive(CH2) or Z1X init Signal Receive(CH2) or Z1X init EXT VTF EXT VTF DS-N/O...
Page 158 6 F 2 S 0 8 4 6 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 CB-AND 1537 BI3_command CB1_CONT-C 1538 [Default setting] ≥1...
Page 159 6 F 2 S 0 8 4 6 3.2.3 PLC (Programmable Logic Controller) Function GRZ100 is provided with a PLC function allowing user-configurable sequence logics on binary signals. The sequence logics with timers, flip-flops, AND, OR, XOR, NOT logics, etc. can be produced by using the PC software “PLC editor tool”...
Page 160 6 F 2 S 0 8 4 6 3.3 Automatic Supervision 3.3.1 Basic Concept of Supervision Though the protection system is in non-operating state under normal conditions, it is waiting for a power system fault to occur at any time and must operate for the fault without fail. Therefore, the automatic supervision function, which checks the health of the protection system during normal operation, plays an important role.
Page 161 6 F 2 S 0 8 4 6 the presence of the zero sequence current on the power system by introduction of the residual circuit current. Only zero sequence monitoring is carried out for the current input circuit, because zero sequence monitoring with the introduction of the residual circuit current can be performed with higher sensitivity than negative sequence monitoring.
Page 162 6 F 2 S 0 8 4 6 Signal channel testing In the BOP scheme, the signal circuit including the remote end is automatically tested at a prescribed time interval. Testing commences when a signal is transmitted from the local to remote end.
Page 163 6 F 2 S 0 8 4 6 Table 3.3.6.1 Supervision Items and Alarms Supervision item LCD message External Event record "IN SERVICE" "ALARM" alarm message V0 err / V2 err / AC input imbalance on/off (5) monitoring Vo, V2, Io I0 err CT err CT circuit monitoring...
Page 164 6 F 2 S 0 8 4 6 3.4 Recording Function The GRZ100 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. For samples of LCD screen, see Section 4.2.
Page 165 6 F 2 S 0 8 4 6 The distance is expressed in km and as a percentage (%) of the line length. For the fault locator, see Section 2.7.4. Relevant events Such events as autoreclose, re-tripping following the reclose-on-to-a fault or autoreclose and tripping for evolving faults are recorded with time-tags.
Page 166 6 F 2 S 0 8 4 6 3.4.2 Event Recording The events shown are recorded with a 1 ms resolution time-tag when the status changes. The user can set a maximum of 128 recording items, and their status change mode. The event items can be assigned to a signal number in the signal list.
Page 167 6 F 2 S 0 8 4 6 Settings The elements necessary for initiating a disturbance recording and their setting ranges are shown in the table below. Element Range Step Default Remarks Timer 0.1-3.0 s 0.1 s 1.0 s Post-fault recording time OCP-S 0.5-250.0 A 0.1 A...
Page 168 6 F 2 S 0 8 4 6 3.5 Metering Function The GRZ100 performs continuous measurement of the analog input quantities. The currents and voltages at remote terminals can be also displayed. 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-to-phase voltage (V ab , V bc , V ca ) Magnitude and phase angle of symmetrical component voltage (V 1 , V 2 , V 0 )
Page 169 6 F 2 S 0 8 4 6 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 170 6 F 2 S 0 8 4 6 There are 8 LED displays. The signal labels and LED colors are defined as follows: Label Color Remarks IN SERVICE Green Lit when the relay is in service. TRIP Lit when a trip command is issued. ALARM Lit when a failure is detected.
Page 171 6 F 2 S 0 8 4 6 4.1.2 Communication Ports The following 3 individual interfaces are mounted as the communication ports: • RS232C port • Serial communication port (RS485 port, optional Fibre optic or Ethernet LAN etc.) • IRIG-B port (1) RS232C port This connector is a standard 9-way D-type connector for serial port RS232C transmission and mounted on the front panel.
Page 172 6 F 2 S 0 8 4 6 36-pin terminal block 20-pin terminal block IRIG BNC connector RS485 connection terminal RJ45 connector (option) Relay rear view (Case Type A) IRIG BNC connector RS485 connection terminal RJ45 connector ST connector for serial (option) communication (option) Relay rear view (Case Type B)
Page 173 6 F 2 S 0 8 4 6 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 174 6 F 2 S 0 8 4 6 Table 4.2.1 Turning off latch LED operation LED lighting status Operation "TRIP" LED Configurable LED (LED1 - LED4) Step 1 RESET Press the key more than 3s on the "Latest fault" screen continue to lit turn off Step 2...
Page 175 6 F 2 S 0 8 4 6 RESET RESET 2) When configurable LED is still lit by pressing key in short period, press again to reset remained LED in the above manner. 3) LED1 through LED4 will remain lit in case the assigned signals are still active state. While any of the menu screen is displayed, the VIEW and RESET keys do not function.
Page 176 6 F 2 S 0 8 4 6 Menu Record Fault record Event record Disturbance record Automatic test Autoreclose count Status Metering Binary I/O Relay element Time sync source Clock adjustment Direction Setting (view) Version Description Communication Record Status Protection Binary input Binary output Setting (change)
Page 177 6 F 2 S 0 8 4 6 Record In the "Record" menu, the fault record, event record and disturbance record can be displayed or erased. Furthermore, autoreclose and automatic test functions can be displayed in a counter form or reset. Status The "Status"...
Page 178 6 F 2 S 0 8 4 6 S c h e m e s w i t c h 1 / 0 A R C - E X T 0 = O f f 1 = O n A R C - D E F 0 = O f f 1 = O n A R C - B U 0 = O f f...
Page 179 6 F 2 S 0 8 4 6 ENTER key to display the details of the fault record. For displayed items, see Section 3.4.1. ／４Ｆａｕｌｔｒｅｃｏｒｄ＃１３／＊０４／Ｎｏｖ／１９９７１５：０９：５８．４４２ Date and Time Tripping ＰｈａｓｅＡＢＣＮＴｒｉｐＡＢＣ Fault phase phase Ｚ１...
Page 180 6 F 2 S 0 8 4 6 • Press the ENTER (= Yes) key to clear all the fault records stored in non-volatile memory. If all fault records have been cleared, the "Latest fault" screen of the digest screens is not displayed.
Page 181 6 F 2 S 0 8 4 6 r b a n c e r e c o r 2 = C l e a r • Select 1 (= Display) to display the date and time of the disturbance records from the top in new-to-old sequence.
Page 182 6 F 2 S 0 8 4 6 T e l e c o m m c h a n n e l t e s t 1 = D i s p l a y c o u n t &...
Page 183 6 F 2 S 0 8 4 6 • Select 1 (=CB1) to display the following confirmation screen. c o u n t R e s e t e c l o s e R e s e t c o u n t s ? E N T E R = Y e s C A N C E L = N o •...
Page 184 6 F 2 S 0 8 4 6 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 185 6 F 2 S 0 8 4 6 ／２Ｒｅｌａｙｅｌｅｍｅｎｔ３／＊＊ＺＧ［０００００００００００００００］ＺＧ２［００００００００００００］ＺＳ［０００００００００００００００］ＺＳ２［００００００００００００］ＢＬ［０００００００００...
Page 186 6 F 2 S 0 8 4 6 Lines 1 to 4 show the operation status of distance measuring elements for earth faults and phase faults respectively. Line 5 shows the operation status of blinder elements. Lines 6 to 9 show the status of overcurrent, directional earth fault and overvoltage elements. Lines 10 to 13 show the status of undervoltage elements.
Page 187 6 F 2 S 0 8 4 6 If a date which does not exist in the calendar is set and END key is pressed, "Error: Incorrect date" is displayed on the top line and the adjustment is discarded. Adjust again. 4.2.4.6 Displaying the Direction of Load Current To display the direction of load current on the LCD, do the following: •...
Page 188 6 F 2 S 0 8 4 6 ／２Ｒｅｌａｙｖｅｒｓｉｏｎ３／６Ｒｅｌａｙｔｙｐｅ：＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ＳｅｒｉａｌＮｏ．：＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Ｍａｉｎｓｏｆｔｗａｒｅ：＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ＦＤｓｏｆｔｗａｒｅ：＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ＰＬＣｄａｔａ：＊＊＊＊＊＊＊＊＊＊＊＊（＊＊＊＊＊＊＊＊）ＩＥＣ１０３ｄａｔａ：＊＊＊＊＊＊＊＊＊＊＊＊（＊＊＊＊＊＊＊＊） 4.2.5.2 Settings The "Description", "Comm.", "Record", "Status", "Protection", "Binary input", "Binary output" and "LED"...
Page 189 6 F 2 S 0 8 4 6 (On the lowest line, the entered number blinks in reverse video.) • After completing the setting on the screen, press the END key to return to the upper menu. To correct the entered number, do the following: •...
Page 190 6 F 2 S 0 8 4 6 To correct the entered numerical value, do the following: • If it is before pressing the ENTER key, press the CANCEL key and enter the new numerical value. • If it is after pressing the ENTER key, move the cursor to the correcting line by pressing the keys and enter the new numerical value.
Page 191 6 F 2 S 0 8 4 6 or press the CANCEL key to correct or cancel the entries. In the latter case, the screen turns back to the setting screen to enable reentries. Press the CANCEL key to cancel entries made so far and to turn to the "Setting (change)"...
Page 192 6 F 2 S 0 8 4 6 If 4 (= Setting (change)) is entered on the top "MENU" screen, the password trap screen "Password" is displayed. If the password is not entered correctly, it is not possible to move to the "Setting (change)"...
Page 193 6 F 2 S 0 8 4 6 • Press 4 (= Setting (change)) on the main "MENU" screen to display the "Setting (change)" screen. • Press 3 (= Comm.) on the "Setting (change)" screen to display the "Communication" screen. C o m m u n i 1 = A d d r e s s...
Page 194 6 F 2 S 0 8 4 6 • When the remote RSM system applied, select 1 (=HDLC). When the IEC60870-5-103 applied, select 2 (=IEC103). <232C> This line is to select the RS-232C baud rate when the RSM system applied. Note: The default setting of the 232C is 9.6kbps.
Page 195 6 F 2 S 0 8 4 6 ／３Ｅｖｅｎｔｒｅｃｏｒｄ１／１２９ＢＩＴＲＮ（０－１２８）：１２８＿ＥＶ１（０－３０７１）：０ＥＶ２（０－３０７１）：１ＥＶ３（０－３０７１）：１ＥＶ４（０－３０７１）：１...
Page 196 6 F 2 S 0 8 4 6 1 / 5 S c h e m e s w i t c h T R I P 1 = O n O C P - S 0 = O f f 1 = O n O C P - G 0 = O f f...
Page 197 6 F 2 S 0 8 4 6 Note: Power and Current setting Active Power Display Power setting=1(Send) Power setting=2(Receive) ＋－＋－－＋＋－ Reactive Power Display Current setting=1(Lag) Current setting=2(Lead) ＋－－＋－－...
Page 198 6 F 2 S 0 8 4 6 P r o t e c t i o n 1 = C h a n g e a c t i v e g r o u p 2 = C h a n g e s e t t i n g 3 = C o p y g r o u p...
Page 199 6 F 2 S 0 8 4 6 ／６ＶＴ＆ＣＴｒａｔｉｏ１／４ＶＴ（１－２００００）：２２００＿ＶＴｓ１（１－２００００）：２２００ＶＴｓ１（１－２００００）：２２００ＣＴ（１－２００００）：４００ •...
Page 200 6 F 2 S 0 8 4 6 T r i p ( G r o u p 1 = P r o t e c t i o n s c h e m e 2 = S c h e m e s w i t c h 3 = P r o t e c t i o n e l e m e n t...
Page 201 6 F 2 S 0 8 4 6 ／６Ｓｃｈｅｍｅｓｗｉｔｃｈ１／＊＊ＺＳ－Ｃ１＝Ｍｈｏ２＝Ｑｕａｄ１＿ＺＧ－Ｃ１＝Ｍｈｏ２＝Ｑｕａｄ１ＢＬＺＯＮＥ１＝ＣＯＭ２＝ＩＮＤ１Ｚ１ＣＮＴ１＝１２＝２３＝３４＝４５＝５１ＰＳＢ－Ｚ１０＝Ｏｆｆ１＝Ｏｎ１：：ＰＳＢ－ＴＰ０＝Ｏｆｆ...
Page 202 6 F 2 S 0 8 4 6 • After setting all switches, press the END key to return to the "Trip" screen. Setting the protection elements • Press 3 (= Protection element) to display the "Protection element" screen. P r o t e c t i o n e l e m e n t ( G r o u p 1 = D i s t a n c e...
Page 203 6 F 2 S 0 8 4 6 ／７Ｄｉｓｔａｎｃｅ１／＊＊Ｚ１Ｓ（０．０１－５０．００）：０．０１＿ Ω Ｚ１ＸＳ（０．０１－５０．００）：０．０１ Ω Ｚ１Ｓθ１（０－４５）：０ｄｅｇＺ１Ｓθ２（４５－９０）：９０ｄｅｇＢＦＲ１Ｓ（０．１０－...
Page 204 6 F 2 S 0 8 4 6 • Enter the numerical value and press the ENTER key for each element. • After setting all elements, press the END key to return to the "Protection element" menu. <PSB&OST> • Press 2 (= PSB&OST) to display the "PSB & OST" screen. The measuring elements and timers used in the power swing blocking and out-of-step tripping are set using this screen.
Page 205 6 F 2 S 0 8 4 6 ／７ＯＣ，ＤＥＦ＆ＵＶ１／＊＊ＯＣＨ（２．０－１５．０）：２．０＿ＡＴＳＯＴＦ（０－３００）：５ｓＯＣＢＦ（０．５－１０．０）：０．５ＡＴＢＦ１（５０－５００）：５０ｍｓＴＢＦ２...
Page 206 6 F 2 S 0 8 4 6 C o m m a n d t r i p T D E F F ( 0 . 0 0 - 0 . 3 0 ) : 0 . 0 0 T D E F R ( 0 .
Page 207 6 F 2 S 0 8 4 6 S c h e m e s w i t c h 1 / 0 A R C - E X T 0 = O f f 1 = O n A R C - D E F 0 = O f f 1 = O n A R C - B U 0 = O f f...
Page 208 6 F 2 S 0 8 4 6 S y n c h r o c h e c k 1 / 1 1 O V B 1 0 - 1 5 0 ) : U V B 1 0 - 1 5 0 ) : O V L 1 1 0 -...
Page 209 6 F 2 S 0 8 4 6 • Enter 1 (= Normal) or 2 (= Inverted) and press the ENTER key for each binary input. 4.2.6.9 Binary Output All the binary outputs of the GRZ100 except the tripping command, signal for command protection and relay failure signal are user-configurable.
Page 210 6 F 2 S 0 8 4 6 • Press the key to return to the "Setting" screen. Assigning signals • Press 2 on the "Setting" screen to display the "Input to logic gate" screen. I n p u t l o g i c g a t e # 1 (...
Page 211 6 F 2 S 0 8 4 6 Note: To release the latch state, refer to Section 4.2.1. Assigning signals • Press 2 on the "Setting" screen to display the "Input to logic gate" screen. I n p u t l o g i c g a t e # 1 (...
Page 212 6 F 2 S 0 8 4 6 load current is transmitted from local to remote terminal. So, the switch [XANGLE] is used to fix the gradient characteristic for testing. When testing, the switch [XANGLE] is set to "1". Z1Sθ1 or Z1Gθ1 Figure 4.2.7.2 Gradient Characteristic of Zone 1 and Zone 1X DOCN element can operate during a power swing condition.
Page 213 6 F 2 S 0 8 4 6 • Press the END key to return to the "Test" screen. Testing the characteristic of DOCN • Enter 0 for A.M.F to disable the automatic monitoring function and enter 1 for DOCN-C to enable the DOCN element to operate.
Page 214 6 F 2 S 0 8 4 6 M a n u a l t e s t T e l e c o m m c h a n n e l t e s t i n g . . . C o m p l e t e d .
Page 215 6 F 2 S 0 8 4 6 • Enter 1 and press the ENTER key to operate the output relays forcibly. • After completing the entries, press the END key. Then the LCD displays the screen shown below. K e e p p r e s s i n o p e r a t e .
Page 216 6 F 2 S 0 8 4 6 jacks A and B. • Press 5 (= Logic circuit) on the "Test" screen to display the "Logic circuit" screen. L o g i c c i r c u i t T e r m A ( 0 7 1 ) ：...
Page 217 6 F 2 S 0 8 4 6 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 218 6 F 2 S 0 8 4 6 UTP cable (10Base-T) 214B-13-10 100/110/115/120V Other HUB. relays Relay Figure 4.4.2 Relay Setting and Monitoring System (2) 4.5 IEC 60870-5-103 Interface The GRZ100 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 219 6 F 2 S 0 8 4 6 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 220 6 F 2 S 0 8 4 6 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 221 6 F 2 S 0 8 4 6 6. Commissioning and Maintenance 6.1 Outline of Commissioning Tests The GRZ100 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 222 6 F 2 S 0 8 4 6 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 223 6 F 2 S 0 8 4 6 6.3 Preparations Test equipment The following test equipment is required for the commissioning tests. 1 Three-phase voltage source 1 Single-phase current source 1 Dynamic three-phase test set (for protection scheme test) 1 DC power supply 3 AC voltmeters 3 Phase angle meter 1 AC ammeter...
Page 224 6 F 2 S 0 8 4 6 6.4 Hardware Tests The tests can be performed without external wiring, but a DC power supply and an 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 225 6 F 2 S 0 8 4 6 6.4.2 Binary Input Circuit The testing circuit is shown in Figure 6.4.2.1. GRZ100 (−) BI15 BI16 BI17 BI18 BI19 BI20 BI28 BI34 BI35 BI36 -A16 power − supply -A17 Terminal block (TB) and Terminal numbers are depending on the relay model.
Page 226 6 F 2 S 0 8 4 6 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 227 6 F 2 S 0 8 4 6 6.4.4 AC Input Circuits This test can be performed by applying known values of voltage and current to the AC input circuits and verifying that the values applied coincide with the values displayed on the LCD screen.
Page 228 6 F 2 S 0 8 4 6 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 229 6 F 2 S 0 8 4 6 6.5.1.1 Distance Measuring Element Z1, Z1X, Z2, Z3, Z4, ZF, ZR1, ZR2 and PSBS Phase fault element reach test The test voltage and current input test circuit is shown in Figure 6.5.1.1. GRZ100 Three-phase voltage...
Page 230 6 F 2 S 0 8 4 6 • Apply three-phase rated voltage. • Choose a test current IT by referring to the table below, the table shows the relationship between the reach setting, test current and measuring error. Reach setting Error ±10% 0.01 - 0.05Ω...
Page 231 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 232 6 F 2 S 0 8 4 6 Earth fault element reach test The test circuit is shown in Figure 6.5.1.2. GRZ100 Three-phase voltage source Monitoring φ jack Single-phase current source 3I o (for Zero-sequence current of own line) 3I om (for Zero-sequence current of parallel line) -A16...
Page 233 6 F 2 S 0 8 4 6 Reach setting Error ±10% 0.01 - 0.05Ω 5A)(*) (0.1 - 0.2Ω ±7% 0.06 - 0.09Ω (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...
Page 234 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 235 6 F 2 S 0 8 4 6 changed in case of OST-ZN.) • Press 5 (= Logic circuit) on the "Test" screen to display the "Logic circuit" screen. • Enter 84 as a signal number to be observed at monitoring jack A and press the ENTER key. •...
Page 236 6 F 2 S 0 8 4 6 90° • Adjust the magnitude of V a and V b while retaining the conditions above and measure the voltage V a at which the element operates. • The theoretical operating voltage is obtained by 2IT × Z OST when the setting reach is Z OST . Check that the measured voltage is within ±...
Page 237 6 F 2 S 0 8 4 6 • Adjust the magnitude of V a and V b while retaining the conditions above and measure the voltage V a at which the element operates. • The theoretical operating voltage is obtained by 2IT × Z when the setting reach is Z Check that the measured voltage is within ±...
Page 238 6 F 2 S 0 8 4 6 θ • Adjust the magnitude of V a while retaining the conditions above and measure the voltage V a at which the element operates. • The theoretical operating voltage is obtained by (IT × UVCZ + UVCV) when the setting reach is UVCZ.
Page 239 6 F 2 S 0 8 4 6 Residual voltage level detection is verified as follows: • Set IT to rated current and the three-phase voltage to rated voltage. Lower the magnitude of V a while retaining the phase angle with the current and measure the voltage V a at which the element operates.
Page 240 6 F 2 S 0 8 4 6 6.5.1.6 Inverse Definite Minimum Time Overcurrent Element (IDMT) OCI, EFI The testing circuit is shown in Figure 6.5.1.4. GRZ100 Single-phase current source 3I o Monitoring jack TB4 -A16 power − -A17 supply Start Time counter...
Page 241 6 F 2 S 0 8 4 6 The output signal numbers of the elements are as follows: Element Signal No. THM-A THM-T To test easily the thermal overload element, the scheme switch [THMRST] in the "Switch" screen on the "Test" menu is used. •...
Page 242 6 F 2 S 0 8 4 6 • Apply the three-phase balance current at 10% of the rated current and interrupt a phase current. Then, check the BCD element operates. 6.5.1.9 Overvoltage / undervoltage elements OVS1, OVS2, OVG1, OVG2, UVS1, UVS2, UVG1, UVG2 The testing circuit is shown in Figure 6.5.1.6.
Page 243 6 F 2 S 0 8 4 6 Operating time check of OVS1, OVG1, UVS1, UVG1 IDMT curves • Apply a rated voltage at the IDMT time multiplier setting 10.0 of the relay. • Change the voltage from the rated voltage to the test voltage quickly and measure the operating time.
Page 244 6 F 2 S 0 8 4 6 Connect a phase angle meter to the three-phase voltages taking the scheme switch [VT-RATE] and [VTPHSEL] setting into consideration. The phase angle meter connection shown in Figure 6.5.1.7 is the case for the default settings, that is, [VT-RATE] and [VTPHSEL] are set to "PH/G" and "A"...
Page 245 6 F 2 S 0 8 4 6 Phase angle check: • Set V a and V s1 to any value between the SY1OV and SY1UV settings keeping V a in-phase with V s1 . Then the SYN1 element operates. •...
Page 246 6 F 2 S 0 8 4 6 single-phase test source is adequate for these tests. Change the magnitude of the voltage or current applied and measure the value at which the element operates. Check that the measured value is within 5% of the setting. Level detectors and their output signal numbers are listed below.
Page 247 6 F 2 S 0 8 4 6 6.5.2 Timer Test The delayed pick-up time of the variable timer can be measured by connecting the monitoring jacks A and B to a time counter as shown in Figure 6.5.2.1. Jacks A and B are used to observe the input signal and output signal of the timer respectively.
Page 248 6 F 2 S 0 8 4 6 6.5.3 Protection Scheme In the following protection scheme tests, a dynamic test set with a three-phase voltage source and current source is required to simulate power system pre-fault, fault and post-fault conditions. In the following command tripping test, the remote end is not simulated and the receiving signal is simulated by energizing a binary input circuit locally.
Page 249 6 F 2 S 0 8 4 6 Zone R2 tripping Set the scheme switch [ZR2BT] to "On". (The [ZR2BT] default setting is "Off".) Check that three-phase time-delayed final tripping is performed for all kinds of faults. Faults should be set midway zone R1 and zone R2. Check that the operating time is 1-1.5 cycle plus zone R2 timer setting.
Page 250 6 F 2 S 0 8 4 6 Set [WKIT] and [ECHO] to "On" and apply a weak-infeed fault. Check that instantaneous tripping is performed. De-energize the binary input BI4 and apply a zone 2 fault. Check that POP tripping does not occur. Apply a zone 2 fault, and check that binary output relay BO13 operates.
Page 251 6 F 2 S 0 8 4 6 element OCH operation. Z1 to Z4 can perform the SOTF tripping by setting. The SOTF function is activated when the breaker has been open for timer TSOTF (0 – 300s) setting and active for an additional 500ms after the breaker is closed. The SOTF function is checked as follows: •...
Page 252 6 F 2 S 0 8 4 6 VT failure detection is checked as follows: • Set the circuit breaker closed condition by applying a "1" signal to binary inputs BI1, BI2 and BI3. • Press 5 (= Logic circuit) on the "Test" screen to display the "Logic circuit" screen. •...
Page 253 6 F 2 S 0 8 4 6 6.5.4 Metering and Recording The metering function can be checked while testing the AC input circuit. See Section 6.4.4. Fault recording can be checked while testing the protection schemes. Open the "Fault records" screen and check that the descriptions are correct for the applied fault.
Page 254 6 F 2 S 0 8 4 6 6.6 Conjunctive Tests 6.6.1 On Load Test With the relay connected to the line which is carrying a load current, it is possible to check the polarity of the voltage transformer and current transformer and the phase rotation with the metering displays on the LCD screen.
Page 255 6 F 2 S 0 8 4 6 terminal number to which the relay contact is connected. ( 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 #...
Page 256 6 F 2 S 0 8 4 6 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 the output relay and monitoring the circuit breaker to confirm that it is tripped or reclosed.
Page 257 6 F 2 S 0 8 4 6 • Enter 2 to select the IO#2 module, then the LCD displays the screen shown below. ( 0 = D i s a b l e 1 = E n a b l e ) 1 / 1 4 I O # B O 1...
Page 258 6 F 2 S 0 8 4 6 6.7 Maintenance 6.7.1 Regular Testing The relay is almost completely self-supervised. The circuits which can not 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 259 6 F 2 S 0 8 4 6 Table 6.7.2.1 LCD Message and Failure Location Message Failure location IO1 or Channel Discon- nector cable × Checksum err × ROM data err × ROM-RAM err × SRAM err × BU-RAM err ×...
Page 260 6 F 2 S 0 8 4 6 If no message is shown on the LCD, this means that the failure location is either in the DC power supply circuit or in the microprocessors mounted on the SPM module. Then check the "ALARM" LED.
Page 261 6 F 2 S 0 8 4 6 The software name is indicated on the memory device on the module with letters such as GS1ZM1- ∗∗∗ , GS1ZF1- ∗∗∗ , 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 262 6 F 2 S 0 8 4 6 (*) 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 263 6 F 2 S 0 8 4 6 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 264 6 F 2 S 0 8 4 6 Appendix A Block Diagram ⎯ 263 ⎯...
Page 265 6 F 2 S 0 8 4 6 Zone 1 Trip Phase & ≧1 CB Trip Command ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 & ≧1 ≧1 TZ3G & TZFG & TZR1G ZR1G & TZR2G ZR2G &...
Page 266 6 F 2 S 0 8 4 6 Zone 1 Trip Phase & ≧1 CB Trip Command ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 & ≧1 ≧1 TZ3G & TZFG & TZR1G ZR1G & TZR2G ZR2G &...
Page 267 6 F 2 S 0 8 4 6 Zone 1 Trip Phase & ≧1 CB Trip Command ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 & ≧1 TZ3G & TZFG & TZR1G ZR1G & TZR2G ZR2G &...
Page 268 6 F 2 S 0 8 4 6 Zone 1 Trip Phase & ≧1 Bus CB Trip Command ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 & ≧1 ≧1 Center CB Trip Command TZ3G & TZFG &...
Page 269 6 F 2 S 0 8 4 6 Fault Detection OCDF (FD) unit ≧1 OCMF UVDF UVGF UVSF Zone 1 Trip Phase & ≧1 CB Trip Command ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 & ≧1 ≧1 TZ3G...
Page 270 6 F 2 S 0 8 4 6 Fault Detection OCDF (FD) unit ≧1 OCMF UVDF UVGF UVSF Zone 1 Trip Bus CB Trip Command Phase & ≧1 ≧1 & Selection TZ1G Z1XG & TZ2G Zone Back-up Trip & ≧1 &...
Page 271 6 F 2 S 0 8 4 6 ⎯ 270 ⎯...
Page 272 6 F 2 S 0 8 4 6 Appendix B Signal List ⎯ 271 ⎯...
Page 273 6 F 2 S 0 8 4 6 Signal list Signal Name Contents CONSTANT 0 constant 0 CONSTANT 1 constant 1 CRT USE CARRIER IN SERVICE 19 Z1G-A EARTH FAULT RELAY Z1G 20 Z1G-B ditto 21 Z1G-C ditto 22 Z1XG-A EARTH FAULT RELAY Z1XG 23 Z1XG-B ditto...
Page 274 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 71 UVFS-CA ditto 72 UVLS-AB UV RELAY (Low set) 73 UVLS-BC ditto 74 UVLS-CA ditto 75 UVFG-A UV RELAY (High set) 76 UVFG-B ditto 77 UVFG-C ditto 78 UVLG-A UV RELAY (Low set) 79 UVLG-B...
Page 275 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 141 UVLSOR UVLSOR 142 UVFGOR UVFGOR 143 UVLGOR UVLGOR 144 2PH 145 TZ1GA TZ1GA 146 TZ1GB TZ1GB 147 TZ1GC TZ1GC 148 Z1G TRIP Z1G TRIP 149 Z1G-A TRIP Z1G TRIP A ph.
Page 276 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 211 CRG-POP/UOP POTT/UNBLK LOCAL TRIP 212 CRS-POP/UOP ditto 213 WI TRIP WEAK INFEED TRIP 214 REV BLK CARRIER SEND FOR BLOCK 215 DEFFCR DG CARRIER TRIP DELAY TIMER 216 DEFRCR CARR.
Page 277 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 281 REC.READY1 LEAD REC. READY SIGNAL 282 REC.READY2 FLW REC. READY SIGNAL 283 BRIDGE1 LEAD BRIDGE CONDITION 284 BRIDGE2 FLW BRIDGE CONDITION 285 IN-PROG1 LEAD REC. IN PROGRESS 286 IN-PROG2 FLW REC.
Page 278 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 351 PUP TRIP PUP TRIP 352 PSBSIN-ABX PSBSIN-ABX 353 PSBSIN-BCX PSBSIN-BCX 354 PSBSIN-CAX PSBSIN-CAX 355 TP-2PH Multi phase trip signal 356 TP-MPH Multi phase trip signal 357 OCDP-A CURRENT CHANGE DET.
Page 279: Ovs1_Inst_Tp
6 F 2 S 0 8 4 6 Signal list Signal Name Contents 421 UVGF-A ditto 422 UVGF-B ditto 423 UVGF-C ditto 425 UVDF-A VOLTAGE CHANGE DETECTION RELAY 426 UVDF-B ditto 427 UVDF-C ditto 431 52AND1 CB1 contact AND logic 432 52AND2 CB2 contact AND logic 433 LB...
Page 280 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 491 ARC SUCCESS2 Follower CB autoreclose success signal 492 ARC FAIL1 leader CB autoreclose fail signal 493 ARC FAIL2 Follower CB autoreclose fail signal 501 UARCSW P1 User ARC switch Position1 502 UARCSW P2 User ARC switch Position2...
Page 281 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 561 PSBGIN-A POWER SWING BLOCK FOR ZG INNER ELEMENT 562 PSBGIN-B ditto 563 PSBGIN-C ditto 565 PSBGOUT-A POWER SWING BLOCK for ZG OUTER ELEMENT 566 PSBGOUT-B ditto 567 PSBGOUT-C ditto 568 EFL...
Page 282 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 631 ZR1G-CX ZR1G-CX 632 ZR2G-AX ZR2G-AX 633 ZR2G-BX ZR2G-BX 634 ZR2G-CX ZR2G-CX 635 ZFS-ABX ZFS-ABX 636 ZFS-BCX ZFS-BCX 637 ZFS-CAX ZFS-CAX 638 ZR2S-ABX ZR2S-ABX 639 ZR2S-BCX ZR2S-BCX 640 ZR2S-CAX ZR2S-CAX 641 Z2G-A_TRIP...
Page 283 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 701 PSBGIN-CX PSBGIN-CX 702 PSBS DET PSB for ZS DETECTION 703 PSBG DET PSB for ZG DETECTION 704 ZF TRIP ZONE-F TRIP 705 ZR2 TRIP ZONE-R2 TRIP 706 ZND TRIP ZONE-ND TRIP 707 SHOT NUM1...
Page 284 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 771 C/R DISECHO-S CARRIER SEND FOR ECHO (ZS) 772 C/R DEFECHO-A DG CARRIER SEND FOR ECHO (A ph.) 773 C/R DEFECHO-B DG CARRIER SEND FOR ECHO (B ph.) 774 C/R DEFECHO-C DG CARRIER SEND FOR ECHO (C ph.) 775 WI TRIP-A...
Page 285 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 841 TR2-A TRIP TRANSFER TRIP-2 (A ph.) 842 TR2-B TRIP TRANSFER TRIP-2 (B ph.) 843 TR2-C TRIP TRANSFER TRIP-2 (C ph.) 844 INTER TRIP2 INTER TRIP-2 845 INTER TRIP2-A INTER TRIP-2 (A ph.) 846 INTER TRIP2-B INTER TRIP-2 (B ph.)
Page 286: Ovs1-Ca_Trip
6 F 2 S 0 8 4 6 Signal list Signal Name Contents 912 REM2 READY Remote term.2 ready condition 913 CF2 Remote term.2 comm.fail 914 SPF2 Remote term.2 SP.sync.fail 916 COMM2 FAIL Remote term.2 Comm.fail alarm (918+919+922+923) 917 READY2 Remote term.2 Ready alarm 918 UNREADY2 Remote term.2 Un-Ready alarm...
Page 287 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 981 OVS1-AB_RST OVS1-AB relay element delayed reset 982 OVS1-BC_RST OVS1-BC relay element delayed reset 983 OVS1-CA_RST OVS1-CA relay element delayed reset 984 OVG1-A_RST OVG1-A relay element delayed reset 985 OVG1-B_RST OVG1-B relay element delayed reset 986 OVG1-C_RST...
Page 288 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080...
Page 289 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1121 SUB_COM2-R1 ditto 1122 SUB_COM3-R1 ditto 1123 SUB_COM4-R1 ditto 1124 BUCAR-R1 Back up carrier mode in remote term-1 data 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135...
Page 290 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220...
Page 291 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1261 TRIP-H_ Trip signal hold 1262 CT_ERR_UF CT error(unfiltered) 1263 I0_ERR_UF I0 error(unfiltered) 1264 V0_ERR_UF V0 error(unfiltered) 1265 V2_ERR_UF V2 error(unfiltered) 1266 CT_ERR CT error 1267 I0_ERR I0 error 1268 V0_ERR V0 error...
Page 292 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360...
Page 293 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1401 LOCAL OP ACT local operation active 1402 REMOTE OP ACT remote operation active 1403 NORM LED ON IN-SERVICE LED ON 1404 ALM LED ON ALARM LED ON 1405 TRIP LED ON TRIP LED ON 1406 TEST LED ON...
Page 294 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1471 1472 SUM_err Program ROM checksum error 1473 1474 SRAM_err SRAM memory monitoring error 1475 BU-RAM_err BU-RAM memory monitoring error 1476 1477 EEPROM_err EEPROM memory monitoring error 1478 1479 A/D_err A/D accuracy checking error...
Page 295 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1536 CB1_CONT-A CB1 contact (A-phase) 1537 CB1_CONT-B (B-phase) 1538 CB1_CONT-C (C-phase) 1539 1540 Z1X_INIT Z1X protection initiation command 1541 EXT_VTF External VTF command 1542 DS_N/O_CONT DS N/O contact 1543 DS_N/C_CONT DS N/C contact 1544 ARC_BLOCK...
Page 296 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1601 CRT_BLOCK Carrier trip block command 1602 DISCRT_BLOCK Carrier protection out of service command 1603 DEFCRT_BLOCK DEF carrier trip block command 1604 PSBTP_BLOCK PSBTP block command 1605 PSB_BLOCK PSB detection block command 1606 1607...
Page 297 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1671 ZNDS_COM ZNDS operating command 1672 Z2G-A_BLOCK Z2G-A block command 1673 Z2G-B_BLOCK Z2G-B block command 1674 Z2G-C_BLOCK Z2G-C block command 1675 1676 1677 1678 1679 1680 TP-A_DELAY Trip command off-delay timer setting 1681 TP-B_DELAY Trip command off-delay timer setting...
Page 298 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1741 PSBCAR-B-R1 ditto 1742 PSBCAR-C-R1 ditto 1743 1744 TR1-A-R1 Transfer trip-1 command from remote term-1 1745 TR1-B-R1 ditto 1746 TR1-C-R1 ditto 1747 1748 TR2-A-R1 Transfer trip-2 command from remote term-1 1749 TR2-B-R1 ditto 1750 TR2-C-R1...
Page 299 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 1811 1812 OVG1_INST_TP OVG1 instantly trip command 1813 OVG2_INST_TP OVG2 instantly trip command 1814 1815 1816 UVS1_INST_TP UVS1 instantly trip command 1817 UVS2_INST_TP UVS2 instantly trip command 1818 1819 1820 UVG1_INST_TP...
Page 300 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 2041 2042 2043 2044 2045 2046 2047 2048 COM1-S Communication on/off data send command 2049 COM2-S ditto 2050 COM3-S ditto 2051 COM4-S ditto 2052 COM5-S ditto 2053 COM6-S ditto 2054 COM7-S ditto...
Page 301 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 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 2606 2607 2608 2609 2610 ALARM_LED_SET...
Page 302 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 2651 2652 2653 2654 2655 2656 CON TPMD1 User configrable trip mode in fault record 2657 CON TPMD2 ditto 2658 CON TPMD3 ditto 2659 CON TPMD4 ditto 2660 CON TPMD5 ditto 2661 CON TPMD6...
Page 303 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 TEMP001 2817 TEMP002 2818 TEMP003 2819 TEMP004...
Page 304 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 2861 TEMP046 2862 TEMP047 2863 TEMP048 2864 TEMP049 2865 TEMP050 2866 TEMP051 2867 TEMP052 2868 TEMP053 2869 TEMP054 2870 TEMP055 2871 TEMP056 2872 TEMP057 2873 TEMP058 2874 TEMP059 2875 TEMP060 2876 TEMP061 2877 TEMP062...
Page 305 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 2931 TEMP116 2932 TEMP117 2933 TEMP118 2934 TEMP119 2935 TEMP120 2936 TEMP121 2937 TEMP122 2938 TEMP123 2939 TEMP124 2940 TEMP125 2941 TEMP126 2942 TEMP127 2943 TEMP128 2944 TEMP129 2945 TEMP130 2946 TEMP131 2947 TEMP132...
Page 306 6 F 2 S 0 8 4 6 Signal list Signal Name Contents 3001 TEMP186 3002 TEMP187 3003 TEMP188 3004 TEMP189 3005 TEMP190 3006 TEMP191 3007 TEMP192 3008 TEMP193 3009 TEMP194 3010 TEMP195 3011 TEMP196 3012 TEMP197 3013 TEMP198 3014 TEMP199 3015 TEMP200 3016 TEMP201 3017 TEMP202...
Page 307 6 F 2 S 0 8 4 6 ⎯ 306 ⎯...
Page 308 6 F 2 S 0 8 4 6 Appendix C Variable Timer List ⎯ 307 ⎯...
Page 309 6 F 2 S 0 8 4 6 Variable Timer List Timer Timer No. Contents Timer Timer No. Contents TZ1GA Z1G TRIP TIMER T3PLL THREE PHASE LIVE LINE TIMER TZ1GB ditto TDER DEFR BACK-UP TRIP TIMER TZ1GC ditto TOS1 OVS1 BACK-UP TRIP TIMER TZ2G Z2G TRIP TIMER TOS2...
Page 310 6 F 2 S 0 8 4 6 Appendix D Binary Input/Output Default Setting List ⎯ 309 ⎯...
Page 311 6 F 2 S 0 8 4 6 Binary Input Default Setting List Model Model NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,FD 2CB-ARC,FD 1CB-ARC,NO-FD CB1-A CB1-A CB1-B CB1-B CB1-C CB1-C Signal Receive(CH1) Signal Receive(CH1) Signal Receive(CH2) or Z1X init Signal Receive(CH2) or Z1X init EXT VTF EXT VTF DS-N/O...
Page 312 6 F 2 S 0 8 4 6 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: GRZ100 IO#2 A2-A1 TRIP-A1 Trip O/P for bus CB -101 A2-B1 TRIP-B1...
Page 313 6 F 2 S 0 8 4 6 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: GRZ100 IO#2 A2-A1 TRIP-A1 Trip O/P for bus CB -201 A2-B1 TRIP-B1...
Page 314 6 F 2 S 0 8 4 6 Binary Output Default Setting List (3) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 TRIP-A1 Trip O/P for bus CB -203 A2-B1 TRIP-B1...
Page 315 6 F 2 S 0 8 4 6 Binary Output Default Setting List (4) 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: GRZ100 IO#2 A2-A1 Z1G/Z1S_TRIP Z1G/ Z1S trip 148,160 -204 A2-B1...
Page 316 6 F 2 S 0 8 4 6 Binary Output Default Setting List (5) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 Z1G/Z1S_TRIP Z1G/ Z1S trip 148,160 -206 A2-B1...
Page 317 6 F 2 S 0 8 4 6 Binary Output Default Setting List (6) 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: GRZ100 IO#2 A2-A1 TRIP-A1,2 Trip O/P for bus/center CB 240,243 -301 A2-B1...
Page 318 6 F 2 S 0 8 4 6 Binary Output Default Setting List (7) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 TRIP-A1,2 Trip O/P for bus/center CB 240,243 -303 A2-B1...
Page 319 6 F 2 S 0 8 4 6 Binary Output Default Setting List (8) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 TRIP-A1 Trip O/P for bus CB -401 A2-B1 TRIP-B1...
Page 320 6 F 2 S 0 8 4 6 Binary Output Default Setting List (9) Relay Model Module BO No. Terminal No. Signal Name Contents Setting Name Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 TRIP-A1,2 Trip O/P for bus/center CB 240,243 -501 A2-B1...
Page 321 6 F 2 S 0 8 4 6 ⎯ 320 ⎯...
Page 322 6 F 2 S 0 8 4 6 Appendix E Details of Relay Menu and LCD & Button Operation ⎯ 321 ⎯...
Page 323 6 F 2 S 0 8 4 6 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=Automatic test 5=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 324 6 F 2 S 0 8 4 6 /1 Status /2 Metering 12/Feb/1998 22:56 3/15 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=Direction Vc ***.*kV ***.* Ic **.**kA ***.* /2 Binary input &...
Page 325 6 F 2 S 0 8 4 6 /2 Protection (Active group= *) 1=Group1 2=Group2 3=Group3 4=Group4 5=Group5 6=Group6 7=Group7 8=Group8 /3 Protection (Group 1) 1=Line parameter 2=Trip 3=Autoreclose /4 Line parameter (Group 1) /5 Line name 1/ 1 1=Line name Line name ******************** 2=VT &...
Page 326 6 F 2 S 0 8 4 6 /2 Binary input 3/18 BISW1 1=Norm =Inv BISW2 1=Norm =Inv BISW3 1=Norm =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 327 6 F 2 S 0 8 4 6 /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 0=Off 1=IRIG 2=RSM 3=IEC Current No/=0 Select No.= _ /3 Time zone 1/ 1...
Page 328 6 F 2 S 0 8 4 6 /5 Autoreclose (Group 1) /6 Autoreclose mode 1=Autoreclose mode 1=Disable 2=SPAR 3=TPAR 4=SPAR&TPAR 2=Scheme switch 5=EXT1P 6=EXT3P 3=Autoreclose element Current No.= 4 Select No.= _ /6 Scheme switch 1/ 8 ARC-EXT 0=Off 1=On ARC-DEF 0=Off 1=On...
Page 329 6 F 2 S 0 8 4 6 /1 Test /2 Switch 1/ 5 1=Switch 2=Manual test A.M.F. 0=Off 1=On 3=Binary output 4=Timer Z1S-1PH 0=Off 1=On 5=Logic circuit ZB-CTRL 0=Norm 1=OFST 2=Non-OFST 0 /2 Manual test /2 Manual test 1=Telecomm channel test Telecom channel testing .
Page 330 6 F 2 S 0 8 4 6 LCD AND BUTTON OPERATION INSTRUCTION 1. PRESS ARROW KEY TO MOVE TO EACH DISPLAYED ITEMS 2. PRESS "END" KEY TO BACK TO PREVIOUS SCREEN MANUAL 1=RECORD MODE 1=FAULT RECORD 2=EVENT RECORD NORMAL 3=DISTURBANCE RECORD (DISPLAY OFF) 4=AUTOMATIC TEST...
Page 331 6 F 2 S 0 8 4 6 ⎯ 330 ⎯...
Page 332 6 F 2 S 0 8 4 6 Appendix F Case Outline • Case Type-A: Flush Mount Type • Case Type-B: Flush Mount Type • Case Type-A, B: Rack Mount Type ⎯ 331 ⎯...
Page 333 6 F 2 S 0 8 4 6 276.2 Front View Side view 4-φ5.5 190.5 34.75 235.4 Rear view Panel cut-out TB3/TB4 TB2 A1 B1 A1 B1 TB2-TB4: M3.5 Ring terminal TB1: M3.5 Ring A10 B10 terminal A18 B18 Terminal block Case Type-A: Flush Mount Type for Model 101, 102, 201, 204, 301 ⎯...
Page 334 6 F 2 S 0 8 4 6 276.2 Front View Side view 4-φ5.5 190.5 34.75 345.4 Rear view Panel cut-out TB2 - TB5 A1 B1 TB2-TB5: M3.5 Ring terminal TB1: M3.5 Ring terminal A18 B18 Terminal block Case Type-B: Flush Mount Type for Model 202, 203, 205, 206, 302, 303, 401, 501 ⎯...
Page 335 6 F 2 S 0 8 4 6 Attachment kit (top bar) Attachment kit Attachment kit (large bracket) (small bracket) Top View 4 HOLES - 6.8x10.3 100/110/115/120V 465.1 483.0 Front View Rack Mount Type: Case Type-A for Model 101, 102, 201, 204, 301 ⎯...
Page 336 6 F 2 S 0 8 4 6 Attachment kit (top bar) Attachment kit Attachment kit (large bracket) (small bracket) Top View 4 HOLES - 6.8x10.3 465.1 483.0 Front View Rack Mount: Case Type-B for Model 202, 203, 205, 206, 302, 303, 401, 501 ⎯...
Page 337 6 F 2 S 0 8 4 6 247.8 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 338 6 F 2 S 0 8 4 6 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 339 6 F 2 S 0 8 4 6 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 340 6 F 2 S 0 8 4 6 Appendix G Typical External Connections ⎯ 339 ⎯...
Page 341 6 F 2 S 0 8 4 6 TB2-A1 GRZ100 TB3- A2 TB1- 1 BUS VT TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts (Closed when bus CB main contact closed.) BO10...
Page 342 6 F 2 S 0 8 4 6 TB2-A1 GRZ100 TB1- 1 BUS VT TB3- A2 TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts CB1-B (Closed when bus CB main contact closed.)
Page 343 6 F 2 S 0 8 4 6 TB5- A2 GRZ100 TB2- A2 TB1- 1 BUS VT TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts CB1-B (Closed when bus CB main contact closed.)
Page 344 6 F 2 S 0 8 4 6 GRZ100 TB2- A2 TB5- A2 TB3- A2 TB1- 1 BUS VT TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts CB1-B (Closed when bus CB main...
Page 345 6 F 2 S 0 8 4 6 TB2-A1 GRZ100 TB1- 1 BUS VT TB3- A2 TB1 -1 To parallel line From parallel line BUS VT (∗1) IO#3 Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -B4 CB1 contacts (Closed when CB main CB1-B contact closed.)
Page 346 6 F 2 S 0 8 4 6 TB5- A1 GRZ100 TB1- 1 BUS VT TB2- A2 TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -B4 CB1 contacts (Closed when CB main CB1-B contact closed.)
Page 347 6 F 2 S 0 8 4 6 TB5- A1 GRZ100 TB3- A2 TB1- 1 BUS VT TB2- A2 TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -B4 CB1 contacts (Closed when CB main CB1-B...
Page 348 6 F 2 S 0 8 4 6 TB2-A1 BUS VT TB1 -1 TB3- A2 To Parallel Line From Parallel Line GRZ100 TB1-1 BUS VT PARALLEL LINE VT (∗1) (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts (Closed when bus CB main CB1-B contact closed.) BO10...
Page 349 6 F 2 S 0 8 4 6 BUS VT TB1 -1 TB5- A2 TB3- A2 TB2- A2 To Parallel Line From Parallel Line GRZ100 TB1-1 BUS VT PARALLEL LINE VT (∗1 (CASE EARTH) [Default setting] CB1-A TB4- A4 CB auxiliary contacts CB1-B (Closed when bus CB main contact closed.)
Page 350 6 F 2 S 0 8 4 6 TB3-A1 GRZ100 TB5- A2 TB2- A2 TB1- 1 BUS VT TB1 -1 To parallel line From parallel line BUS VT (∗1) Parallel line Protected line (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts CB1-B (Closed when bus CB main...
Page 351 6 F 2 S 0 8 4 6 TB5- A2 TB3-A1 BUS VT TB1 -1 TB2- A2 To Parallel Line From Parallel Line GRZ100 TB1-1 BUS VT PARALLEL LINE VT (∗1 (CASE EARTH) [Default setting] CB1-A TB4 -A4 CB auxiliary contacts CB1-B (Closed when bus CB main contact closed.)
Page 352 6 F 2 S 0 8 4 6 Appendix H Relay Setting Sheet • Relay Identification Transmission line parameters Distance scheme Autoreclose scheme • Contacts setting • Relay and Protection Scheme Setting Sheets • PLC default setting ⎯ 351 ⎯...
Page 353 6 F 2 S 0 8 4 6 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 4 6 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 4 6 6. Default setting Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units 1CB-ARC,FD 2CB-ARC,FD NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 5A rating 1A rating Relay model Active group...
Page 356 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units 1CB-ARC,FD NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 2CB-ARC,FD 1CB-ARC,NO-FD Setting 5A rating 1A rating Relay model UVG2EN Off - On...
Page 357 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units 1CB-ARC,FD 2CB-ARC,FD NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 5A rating 1A rating Relay model 0.01 - 50.00 0.10 - 250.00...
Page 358 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units 1CB-ARC,FD 2CB-ARC,FD NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 5A rating 1A rating Relay model DEFFI 0.5 - 5.0...
Page 359 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units 1CB-ARC,FD 2CB-ARC,FD NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 5A rating 1A rating Relay model TDEFF 0.00 - 0.30...
Page 360 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 1CB-ARC,FD 2CB-ARC,FD 5A rating 1A rating Relay model BISW13 Norm - Inv...
Page 361 6 F 2 S 0 8 4 6 Relay and protection scheme setting sheet Default Setting of Relay Series(5A rating / 1A rating) User Range Contents № Name Units NO-ARC,NO-FD 1CB-ARC,NO-FD 2CB-ARC,NO-FD 1CB-ARC,NO-FD Setting 1CB-ARC,FD 2CB-ARC,FD 5A rating 1A rating Relay model Number of bi-trigger (on/off) BITRN...
Page 362 6 F 2 S 0 8 4 6 Event record default setting Default setting Name Range Unit Contents All models Sig. NO. Signal name type 0 - 3071 Event record signal 1536 CB1 A On/Off － 0 - 3071 ditto 1537 CB1 B On/Off...
Page 363 6 F 2 S 0 8 4 6 Event record default setting Default setting Name Range Unit Contents All models Sig. NO. Signal name type EV65 0 - 3071 ditto On/Off － EV66 0 - 3071 ditto On/Off － EV67 0 - 3071 －...
Page 364 6 F 2 S 0 8 4 6 Disturbance record default setting Default setting Model Default setting Model Name Range Unit Contents Signal No. Signal name Signal NO. Signal name SIG1 0 - 3071 disturbance record triger TRIP-A TRIP-A － SIG2 0 - 3071 ditto...
Page 365 6 F 2 S 0 8 4 6 PLC default setting PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 №...
Page 366 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 367 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 368 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 369 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 204, 205, 206 Back Release...
Page 370 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 371 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 204, 205, 206 Back Release...
Page 372 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 373 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 374 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 375 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 376 6 F 2 S 0 8 4 6 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer 101, 102, 201, 202, 203, 301, 302, 303, 401, 501 № Signal Turn None 204, 205, 206...
Page 377 6 F 2 S 0 8 4 6 ⎯ 376 ⎯...
Page 378 6 F 2 S 0 8 4 6 Appendix I Commissioning Test Sheet (sample) 1. Relay identification 2. Preliminary check 3. Hardware check 3.1 User interface check 3.2 Binary input/Binary output circuit check 3.3 AC input circuit check 4. Function test 4.1 Phase fault element ZS test 4.2 Earth fault element ZG test 4.3 Out-of-step element OST test...
Page 379 6 F 2 S 0 8 4 6 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 380 6 F 2 S 0 8 4 6 Function test 4.1 Phase fault element ZS test 2IT × ZS Measured voltage (2V a ) Element Reach setting (ZS) Z1XS ZR1S ZR2S ZNDS PSBSIN PSBSOU 4.2 Earth fault element ZG test Measured voltage (2V a ) Element Reach setting (ZG)
Page 381 6 F 2 S 0 8 4 6 4.5 Directional earth fault element DEF test Element Current setting Measured current DEFF DEFR Element Voltage setting Measured voltage DEFF DEFR 4.6 Negative sequence directional element DOCN test Element Test current Measured voltage DOCNF DOCNR 4.7 Inverse definite minimum time overcurrent element (IDMT) EFI and OCI test...
Page 382 6 F 2 S 0 8 4 6 Phase angle check Element Setting Measured angle SYN1 (SY1θ) SYN2 (SY2θ) 4.9 Thermal overload element test Element Test current Measured operating time 1.2 × I s THM-A 10 × I s THM-T 4.10 Current change detection element Element Test current...
Page 383 6 F 2 S 0 8 4 6 (2) Operating time test (IDMT) Element Voltage setting Multiplier setting Changed voltage Measured time OVS1 10.0 1.5 × Voltage setting 1.5 × Voltage setting OVG1 10.0 UVS1 10.0 0.5 × Voltage setting 0.5 ×...
Page 384 6 F 2 S 0 8 4 6 Appendix J Return Repair Form ⎯ 383 ⎯...
Page 385 6 F 2 S 0 8 4 6 RETURN / REPAIR FORM Please complete this form up and return it to TOSHIBA CORPORATION with the GRZ100 to be repaired. TOSHIBA CORPORATION Fuchu Complex 1, Toshiba-cho, Fuchu-shi, Tokyo, Japan For: Power Systems Protection & Control Department...
Page 386 6 F 2 S 0 8 4 6 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 387 6 F 2 S 0 8 4 6 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/ 1998) Please write any comments on the GRZ100, including the document.
Page 388 6 F 2 S 0 8 4 6 Customer Name: Company Name: Address: Telephone No.: Facsimile No.: Signature: ⎯ 387 ⎯...
Page 389 6 F 2 S 0 8 4 6 ⎯ 388 ⎯...
Page 390 6 F 2 S 0 8 4 6 Appendix K Technical Data ⎯ 389 ⎯...
Page 391 6 F 2 S 0 8 4 6 Ratings AC current I 1A or 5A AC voltage V 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 392 6 F 2 S 0 8 4 6 Earth Fault Distance Measuring Element Z1G, Z2G and Z1XG 0.10 to 250.00Ω in 0.01Ω steps (1A relay) 0.01 to 50.00Ω in 0.01Ω steps (5A relay) θ 0° to 45° in 1° steps θ...
Page 393 6 F 2 S 0 8 4 6 Broken Conductor Detection Broken conductor threshold (I OFF, 0.10 to 1.00 in 0.01 steps DTL delay: 0.00 to 300.00s in 0.01s steps Voltage Transformer Failure Supervision Undervoltage element (phase-to-phase) 50 to 100V in 1V steps Undervoltage element (phase-to-earth) 10 to 60V in 1V steps Current change detection element...
Page 394 6 F 2 S 0 8 4 6 Directional Earth Fault Protection 0 to 90° in 1° steps (3I0 lags for −3V0) Characteristic angle Polarising voltage (3V0) 1.7 to 21.0V in 0.1V steps Zero-sequence current (3I0) 0.10 to 1.00A in 0.01A in 0.01A steps (1A relay) 0.5 to 5.0A in 0.1A steps (5A relay) Time multiplier for inverse time characteristic 0.05 to 1.00 in 0.01 steps...
Page 395 6 F 2 S 0 8 4 6 Autoreclose Function Number of shots 1 to 4 shots Timer settings Dead time for single-phase autoreclose 0.01 to 10.00s in 0.01s steps Dead time for three-phase autoreclose 0.01 to 100.00s in 0.01s steps Multi-shot dead line time 5.0 to 300.0s in 0.1s steps Multi-shot reset time...
Page 396 6 F 2 S 0 8 4 6 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-subminiature connector female Rear communication port (remote PC) RS485 I/F: Transmission data rate for RSM system 64kbps Connection...
Page 397 6 F 2 S 0 8 4 6 a) Minimum operating time (50Hz) b) Maximum operating time (50Hz) Phase to phase fault a) Minimum operating time (50Hz) b) Maximum operating time (50Hz) Phase to earth fault In the case of a 60Hz relay the operate time is reduced by approximately 15% to 20%. Note: ⎯...
Page 398 6 F 2 S 0 8 4 6 CT Requirement The requirement for minimum CT knee-point voltage for GRZ100 is assessed for the following three cases separately: a) Stability for faults beyond the zone 1 reach point: > k × I ×...
Page 399 6 F 2 S 0 8 4 6 Knee point voltage. Rated secondary current. Resistance of CT. Rated burden. Accuracy limiting factor of CT (e.g. 20 for 5P20) (All values refer to the CT secondary side) Remanent flux has not been considered. In cases where a high level of remanent flux may be experienced, it may be necessary to include an additional margin when dimensioning the CT.
Page 400 6 F 2 S 0 8 4 6 ENVIRONMENTAL PERFORMANCE CLAIMS Test Standards Details Atmospheric Environment Temperature IEC60068-2-1/2 Operating range: -10°C to +55°C. 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) Mechanical Environment...
Page 401 6 F 2 S 0 8 4 6 ⎯ 400 ⎯...
Page 402 6 F 2 S 0 8 4 6 Appendix L Symbols Used in Scheme Logic ⎯ 401 ⎯...
Page 403 6 F 2 S 0 8 4 6 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 404 6 F 2 S 0 8 4 6 Signal inversion Output Output Timer Delaye pick-up timer with fixed setting XXX: Set time Delayed drop-off timer with fixed setting XXX: Set time Delaye pick-up timer with variable setting XXX - YYY: Setting range XXX - YYY Delayed drop-off timer with variable setting XXX - YYY: Setting range...
Page 405 6 F 2 S 0 8 4 6 ⎯ 404 ⎯...
Page 406 6 F 2 S 0 8 4 6 Appendix M Example of Setting Calculation ⎯ 405 ⎯...
Page 407 6 F 2 S 0 8 4 6 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 • Line impedance of A s/s - Bs/s - Positive sequence impedance: 0.0197 + j0.2747 (ohms/km) - Zero sequence impedance: 0.4970 + j1.4387 (ohms/km)
Page 408 6 F 2 S 0 8 4 6 Therefore, load current I L is: I L = (Source voltage)/(A s/s back impedance + Line impedance + B s/s impedance) = (150kV/ 3 )/(0.94 × 75 + 16.8 × (0.0197 ) + 0.94 × 75) + 0.2747 = 594.7A Minimum fault current...
Page 409 6 F 2 S 0 8 4 6 Scheme setting Element Contents Setting SCHEME Protection scheme selection ZS-C Mho or Quadrilateral characteristic Mho or Quad (Note *1) ZG-C Mho or Quadrilateral characteristic Mho or Quad (Note *1) CRSCM Carrier out of service CHSEL Carrier channel configuration SINGLE...
Page 410 6 F 2 S 0 8 4 6 Out of step trip THMT Thermal trip THMAL Thermal alarm Autoreclose mode Autoreclosing mode SPAR&TPAR ARC-SM Multi. Shot ARC mode ARC-CB ARC mode for 1.5CB system ARC-DEF REC. by DG carr. trip ARC-BU ARC initiated by back-up trip ARC-EXT...
Page 411 6 F 2 S 0 8 4 6 The line angle setting is set to 85°. Alternatively set to a smaller angle (e.g. 80°) in consideration of higher levels of fault resistance. <Z1S, Z1XS, Z2S, Z3S, Z4S, Z1G, Z1XG, Z2G element> Z1S, Z1XS, Z2S, Z3S, Z4S, Z1G, Z1XG, Z2G element settings are calculated as shown in the following table.
Page 412 6 F 2 S 0 8 4 6 < V rating/(2.5 times of I rating) = (110V/ 3 )/(2.5 × 5A) = 5.08 Element Setting BFRS 5.00 Ω BFLS θ 120° 5.00 Ω BRRS BRLS Linked with BFRS 5.00 Ω BFRG BFLG θ...
Page 413 6 F 2 S 0 8 4 6 Current setting Definite time earth fault protection (EF) The EF element may be used either to provide back-up earth fault protection or, alternatively, open circuit protection. For example, to detect open faults of the CT circuit, the operating value of the detector should be lower than the normal load current on the line: EF ≤...
Page 414 6 F 2 S 0 8 4 6 = 8.23A Element Setting 8.2 (A) Breaker failure protection (BF) The setting of the BF element should be lower than the minimum fault current: OCBF < (I fmin /CT ratio) × 0.5 = {(0.5 ×...
Page 415 6 F 2 S 0 8 4 6 VT failure supervision The undervoltage element for VT failure supervision (UVFS, UVFG) is set to about 50% of the rated voltage. Element Setting UVFS UVFG Weak infeed tripping function The undervoltage element for weak infeed tripping (UVLS, UVLG) is set to 70% of the rated voltage.
Page 416 6 F 2 S 0 8 4 6 3.10 Autoreclose setting Dead timer reset timing Dead line timer The SPAR and TPAR timer are provided to present the deionized time of the line. The SPAR element is initiated simultaneously by the reclose initiation for single-pole autoreclose dead time.
Page 417 6 F 2 S 0 8 4 6 ⎯ 416 ⎯...
Page 418 6 F 2 S 0 8 4 6 Appendix N IEC60870-5-103: Interoperability and Troubleshooting ⎯ 417 ⎯...
Page 419 6 F 2 S 0 8 4 6 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 420 6 F 2 S 0 8 4 6 measurand quantities Common setting • Transmission cycle of Measurand frame • FUN of System function • Test mode, etc. CAUTION: To be effective the setting data written via the RS232C, turn off the DC supply of the relay and turn on again.
Page 421 6 F 2 S 0 8 4 6 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 422 6 F 2 S 0 8 4 6 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 423 6 F 2 S 0 8 4 6 IEC103 configurator Default setting Type Description Contents FUN 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 424 6 F 2 S 0 8 4 6 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 425 6 F 2 S 0 8 4 6 Description Contents GRZ100 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 426 6 F 2 S 0 8 4 6 [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 427 6 F 2 S 0 8 4 6 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 428 6 F 2 S 0 8 4 6 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 429 6 F 2 S 0 8 4 6 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 430 6 F 2 S 0 8 4 6 Appendix O Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8 ⎯ 429 ⎯...
Page 431 6 F 2 S 0 8 4 6 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 432 6 F 2 S 0 8 4 6 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 433 6 F 2 S 0 8 4 6 = prior load current. 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 O-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 434 6 F 2 S 0 8 4 6 Appendix P Inverse Time Characteristics ⎯ 433 ⎯...
Page 435 6 F 2 S 0 8 4 6 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 436 6 F 2 S 0 8 4 6 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 437 6 F 2 S 0 8 4 6 ⎯ 436 ⎯...
Page 438 6 F 2 S 0 8 4 6 Appendix Q Failed Module Tracing and Replacement ⎯ 437 ⎯...
Page 439 6 F 2 S 0 8 4 6 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 440 6 F 2 S 0 8 4 6 Table Q-1 LCD Message and Failure Location Message Failure location IO1 or Channel Discon- nector cable × Checksum err × ROM data err × ROM-RAM err × SRAM err × BU-RAM err ×...
Page 441 6 F 2 S 0 8 4 6 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 442 6 F 2 S 0 8 4 6 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 443 6 F 2 S 0 8 4 6 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 444 6 F 2 S 0 8 4 6 Appendix R Ordering ⎯ 443 ⎯...
Page 445 6 F 2 S 0 8 4 6 Distance Protection Relay GRZ100 − B − 0 − Relay Type: Distance protection relay GRZ100 Relay Model: -Model100: No autoreclose 18 BIs, 13 BOs, 6 trip BOs 18 BIs, 23 BOs, 6 trip BOs -Model200: With autoreclose for single breaker scheme 18 BIs, 23 BOs, 6 trip BOs 21 BIs, 27 BOs, 6 trip BOs...
Page 446 6 F 2 S 0 8 4 6 Version-up Records Version Date Revised Section Contents Oct. 10, 2006 First issue Nov. 6, 2006 2.4.9.2 Modified the description and Figures 2.4.9.7 to 2.4.9.10. Apr. 12, 2007 2.4.1.3, 2.4.3.4, Modified the description. 2.4.4.1 2.4.10 Added Figure 2.4.10.2.

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