Page 1 6 F 2 S 0 8 3 4 INSTRUCTION MANUAL DISTANCE RELAY WITH INTEGRAL DIGITAL COMMUNICATION GRZ100 - 211B, 214B, 216B, 311B - 221B, 224B, 226B, 321B, 323B © TOSHIBA Corporation 2005 All Rights Reserved. ( Ver. 0.3 )
Page 2 6 F 2 S 0 8 3 4 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 3 4 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 3 4 • Connection cable Carefully handle the connection cable without applying excessive force. • Modification Do not modify this equipment, as this may cause the equipment to malfunction. • Short-link Do not remove a short-link which is mounted at the terminal block on the rear of the relay before shipment, as this may cause the performance of this equipment such as withstand voltage, etc., to reduce.
Page 5 6 F 2 S 0 8 3 4 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 2.1.3 Main Protection and Backup Protection 2.1.4 Distance Relay - General Performance 2.1.5 Power Swing and Out-of-Step 2.2 Principle of Distance Measurement 2.2.1 Phase Fault...
Page 6 6 F 2 S 0 8 3 4 2.6.4 Inverse Definite Minimum Time Overcurrent Element IDMT 2.6.5 Out-of-Step Element OST 2.6.6 Voltage and Synchronism Check Elements OVL, UVL, OVB, UVB, and 2.6.7 Current Change Detection Elements OCD and OCDP 2.6.8 Negative Sequence Directional Elements DOCNF and DOCNR 2.6.9 Level Detectors 2.7 Autoreclose 2.7.1 Application...
Page 7 6 F 2 S 0 8 3 4 User Interface 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 3 4 6.7.1 Regular Testing 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 3 4 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 External Connections...
Page 10 6 F 2 S 0 8 3 4 1. Introduction GRZ100 is a fully numeric distance protection incorporating integral digital communication channels for teleprotection signalling. Either one or two communication channels are provided, suitable for relay-to-relay connection via fibre-optic links, or via electrical interfaces to a digital communication network.
Page 11 6 F 2 S 0 8 3 4 The GRZ100 provides the following metering and recording functions. - Metering - Fault record - Event record - Fault location - Disturbance record The GRZ100 provides the following menu-driven human interfaces for relay setting or viewing of stored data.
Page 12 6 F 2 S 0 8 3 4 Table 1.1.1 shows the measuring elements incorporated. Table 1.1.1 Incorporated Measuring Elements Measuring elements 211B, 221B, 311B 321B, 323B 214B, 216B 224B, 226B Z1S, Z1SX, Z2S, Z3S, ZFS, Distance element (phase fault) ZR1S, ZR2S, Z4S, ZNDS Z1G, Z1GX, Z2G, Z3G, ZFG, Distance element (earth fault)
Page 13 6 F 2 S 0 8 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 CRT USE M-PROT_ON 1550 Trip [PSB-Z1] mode Phase S-TRIP & selection control " ON " logic Sigle-phase logic tripping 0.00 - 10.00s command M-TRIP [PSB-Z2] & " ON " Three-phase ≥ 1 tripping 0.00 - 10.00s command...
Page 30 6 F 2 S 0 8 3 4 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 & SCF BLOCK [CRSCM] SCF BLOCK: Severe communication failure block...
Page 31 6 F 2 S 0 8 3 4 Default setting CRT USE Z1_INST_TP Z1 can trip instantaneously. Z1CNT_INST 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 3 4 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 3 4 Element Range Step Default Remarks Z4 reach 0.01 - 50.00Ω 0.01Ω 8.00Ω (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...
Page 34 6 F 2 S 0 8 3 4 Element Range Step Default Remarks ZNDG ZND reach 0.01 - 100.00Ω 0.01Ω 10.00Ω (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...
Page 35 6 F 2 S 0 8 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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 3 4 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. Zone 1X outputs single-phase tripping signal S-TRIP or three-phase tripping signal M-TRIP through phase selection logic on condition that the reclosing mode selection switch [ARC-M] of autoreclose be set to "TPAR"...
Page 43 6 F 2 S 0 8 3 4 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 3 4 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 3 4 TSBCT R1-CR 0.00 – 1.00s ≥1 ≥ 1 R2-CR & S-TRIP Phase [TERM] & & Selection M-TRIP "3TERM" "Z2" TCHD [ZONESEL] CS (Carrier send) signal & Integral com m unication ≥ 1 0-50m s Signal No.
Page 46 6 F 2 S 0 8 3 4 TSBCT 0.00 – 1.00s 0.01s 0.10s PROTECTION 3ZONE/Z1EXT/PUP/POP/UOP Scheme selection SCHEME /BOP/POP+DEF/UOP+DEF/ BOP+DEF/PUP+DEF TERM 2TERM/3TERM 2TERM Terminal selection Open1 OFF/ON Remote terminal 1 out of service Open2 OFF/ON Remote terminal 2 out of service ZONESEL Z2/Z3 Overreaching element selection...
Page 47 6 F 2 S 0 8 3 4 TECCB CB-OR & 0.00 - 200.00s R1-CR & ≥ 1 ≥ 1 R2-CR ≥1 ≥ 1 [TERM] "2TERM" & TREBK ≥ 1 20ms 100ms & TSBCT 0.00 – 1.00s Phase S-TRIP & Selection (∗) M-TRIP...
Page 48 6 F 2 S 0 8 3 4 Setting The following shows the setting elements necessary for the POP and their setting ranges. For the settings of Z2, Z3 and UVC, refer to Section 2.4.1. Element Range Step Default Remarks CO.
Page 49 6 F 2 S 0 8 3 4 (*3) Valid only when quadrilateral characteristic is selected by ZS-C. The reverse looking Z4 (G,S), BRR (G,S) and BRL (G,S) must always operate for reverse faults for which the forward overreaching element of the remote end operates. The following setting coordination is required.
Page 50 6 F 2 S 0 8 3 4 the healthy line may be tripped erroneously. To prevent this, current reversal logic is provided. (See Section 2.4.3.6 for current reversal.) For the external communication channel, a single channel shared by different terminals or multiplex channels, one channel for each direction can be used.
Page 51 6 F 2 S 0 8 3 4 TECCB CB-OR & 0.00 - 200.00s R1-CR & ≥ 1 R2-CR ≥1 ≥ 1 ≥ 1 [TERM] "2TERM" & TREBK TSBCT ≥ 1 20ms 0.01-10.00s & 0.00 – 1.00s Phase S-TRIP & ≥...
Page 52 6 F 2 S 0 8 3 4 TERM 2TERM/3TERM 2TERM Terminal selection Open1 OFF/ON Remote terminal 1 out of service Open2 OFF/ON Remote terminal 2 out of service ZONESEL Z2/Z3 Overreaching element selection PSB - CR OFF/ON Power swing blocking ECHO OFF/ON Echo function...
Page 53 6 F 2 S 0 8 3 4 element operates. Tripping is performed on condition that the forward overreaching element has operated and no signal has been received. In this signaling system, the signal transmitted is a trip block signal and transmission of this signal is only required in the event of an external fault. Therefore, even if power line carrier is used, there will be no failure to operate or false operation due to attenuation of signals caused by signal transmission through the fault.
Page 54 6 F 2 S 0 8 3 4 & TREBK ≥ 1 & R1-CR 0.01 – 10.00s 20ms R2-CR & ≥1 TSBCT [TERM] "2TERM" 0.00 – 1.00s TCHD "Z2" [ZONESEL] & S-TRIP Phase Selection M-TRIP & 0 - 50ms "Z3" [PSB-CR] "...
Page 55 6 F 2 S 0 8 3 4 Element Setting Remarks BRLS θ Interlinked with BFLS θ Angle of reverse left blinder BRLS Z4G θ(*2) Interlinked with Z3G θ Characteristic angle of Z4 mho element Interlinked with ZBG θ Angle of Z4 directional element Z4BGθ(*3) BRRG θ...
Page 56 6 F 2 S 0 8 3 4 the echo signal is inhibited for 250 ms by delayed drop-off timer T1 even after they have reset. In order to prevent any spurious echo signal from looping round between the terminals in a healthy state, the echo signal is restricted to last for 200 ms by delayed pickup timer T2.
Page 57 6 F 2 S 0 8 3 4 The undervoltage element responds to three phase-to-phase voltages and three phase-to-ground voltages. The undervoltage element prevents false weak infeed tripping due to spurious operation of the channel. Single-phase tripping or three-phase tripping is also applicable to weak infeed tripping according to the reclosing mode of the autoreclose function.
Page 58 6 F 2 S 0 8 3 4 Figure 2.4.3.8 shows the current reversal logic. The current reversal logic is picked up on condition that reverse looking Z4 has operated and forward overreaching zone 2 or zone 3 have not operated, and the output CRL immediately controls the send signal to a trip block signal and at the same time blocks local tripping.
Page 59 6 F 2 S 0 8 3 4 UVC - A & UVC - B & S - TRIP UVC - C & Z3G - A & Z3G - B ≥1 & ≥1 & Z3G - C & TRIP ≥1 Z3S - AB M - TRIP &...
Page 60 6 F 2 S 0 8 3 4 The setting element necessary for the backup carrier scheme and its setting range is as follows: Element Range Step Default Remarks TCHDE 0 – 100 ms 1 ms 20 ms Three terminal application SCFCNT Trip / BLK Table 2.4.3.1...
Page 61 6 F 2 S 0 8 3 4 2.4.4 High-Resistance 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 3 4 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 3 4 TREBK TDEFR ≥1 20ms 0.01 – 10.00s DEFR & ≥1 TDEFF (POP) & DEFF TSBCT (UOP) TCHD 0 - 300ms & ≥ 1 0.00 – 1.00s 0-50ms & & S-TRIP PSCM_TCHDEN 1842 M-TRIP R1-CR-DEF &...
Page 64 6 F 2 S 0 8 3 4 When operation of the DEFR and no-operation of the DEFF continue for 20 ms or more, even if the DEFF operates or the DEFR is reset later, tripping of the local terminal or transmission of the trip permission signal is blocked for the TREBK setting time.
Page 65 6 F 2 S 0 8 3 4 Single-phase tripping or three-phase tripping is also applicable to weak infeed tripping according to the reclosing mode of the autoreclose function. The weak infeed trip function can be disabled by the scheme switch [WKIT]. 778, 779, 780 ECHO1_DEF-R1 DEFWI_TRIP...
Page 66 6 F 2 S 0 8 3 4 When the signaling channel of DEF BOP is separated from that of distance command protection, the signal S-DEFBOP2 is used for CS and assigned to a user configurable binary output relay (see Section 3.2.2).
Page 67 6 F 2 S 0 8 3 4 Element Range Step Default Remarks DEFF Forward looking DEF DEFFI 0.5 - 5.0 A 0.1 A 1.0 A Residual current (0.10 - 1.00 A 0.01 A 0.20 A) (*) DEFFV 1.7 – 21.0 V 0.1 V 2.0 V Residual voltage...
Page 68 6 F 2 S 0 8 3 4 2.4.5 Overcurrent Backup Protection Inverse time and definite time overcurrent protections are provided for phase faults and earth faults respectively. Scheme logic The scheme logic of the overcurrent backup protection is shown in Figure 2.4.5.1. The phase overcurrent protection issues single-phase tripping signals in the operation of OC and OCI, and can issue a three-phase tripping signal BU-TRIP by PLC signals OC_3PTP and OCI_3PTP.
Page 69 6 F 2 S 0 8 3 4 The overcurrent backup protection can provide a fail-safe function by assigning the PLC signals OC-∗_FS and OCI-∗_FS to an output of relay element, etc. The PLC signals OC-∗_FS and OCI-∗_FS are assigned to “1” (Signal No. =1) as default. Tripping by each element can be disabled by the scheme switches [OCBT], [OCIBT], [EFBT]and [EFIBT], and also can be disabled by the binary input signals (PLC signals) OC_BLOCK, OCI_BLOCK, EF_BLOCK and EFIBLOCK.
Page 70 6 F 2 S 0 8 3 4 characteristics. The DEFI is the scheme switch for directional control selection and if NOD is selected, the inverse time overcurrent protection executes non-directional operation. If F or R is selected, it executes forward operation or reverse operation in combination with the DEFF or DEFR.
Page 71 6 F 2 S 0 8 3 4 the fault current. The definite time overcurrent protection consists of instantaneous overcurrent elements and delayed pick-up timers started by them. Identical current values can be set for terminals, but graded settings are better than identical settings in order to provide a margin for current sensitivity.
Page 72 6 F 2 S 0 8 3 4 2.4.6 Thermal Overload Protection The temperature of electrical plant rises according to an I t function and the thermal overload protection in GRZ100 provides a good protection against damage caused by sustained overloading.
Page 73 6 F 2 S 0 8 3 4 onto a system that has previously been loaded to 90% of its capacity. Thermal Curves (Cold Curve - no Thermal Curves (Hot Curve - 90% prior load) prior load) 1000 1000 τ τ...
Page 74 6 F 2 S 0 8 3 4 Element Range Step Default Remarks 2.0 – 10.0 A 0.1 A 5.0 A Thermal overload setting. (0.40 – 2.00 A)(*) (0.01 A) (1.00 A) (THM = I : allowable overload current) THMIP 0.0 –...
Page 75 6 F 2 S 0 8 3 4 72:UVLS-AB [SOTF-DL] TSOTF 73:UVLS-BC 74:UVLS-CA UVLS & "UV", 78:UVLG-A "Both" 0 - 300s 79:UVLG-B 80:UVLG-C UVLG TSOTF ≥1 CB-OR & "CB", 0.5s 0 - 300s "Both" 55: OCH-A 56: OCH-B [SOTF-OC] & 57: OCH-C SOTF-TRIP "ON"...
Page 76 6 F 2 S 0 8 3 4 2.4.8 Stub Protection In the case of a busbar with a one-and-a-half breaker arrangement, the VT is generally installed on the line side. If the line is separated from the busbar, the distance protection does not cover to the "stub"...
Page 77 6 F 2 S 0 8 3 4 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 78 6 F 2 S 0 8 3 4 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 79 6 F 2 S 0 8 3 4 TOS1 & & OVS1-AB_TRIP OVS1 BC ≥1 & & OVS1-BC_TRIP ≥1 & & OVS1-CA_TRIP ≥1 0.00 - 300.00s [OVS1EN] ≥1 "DT" & ≥ 1 OVS1_TRIP "IDMT" ≥1 & OVS1_INST_TP 1808 & 1856 OVS1_BLOCK Figure 2.4.9.2 OVS1 Overvoltage Protection TOS2...
Page 80 6 F 2 S 0 8 3 4 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 81 6 F 2 S 0 8 3 4 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 82 6 F 2 S 0 8 3 4 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. If all three phase voltages drop below this setting, then both UV∗1 and UV∗2 are prevented from operating.
Page 83 6 F 2 S 0 8 3 4 TUG2 & & UVG2-A_ALM ≥1 UVG2 B & & UVG2-B_ALM ≥1 [UVG2EN] & & UVG2-C_ALM "ON" ≥1 NON UVGBLK 0.00 - 300.00s ≥ 1 UVG2_ALARM & & UVG2_INST_TP 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 84 6 F 2 S 0 8 3 4 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 85 6 F 2 S 0 8 3 4 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 86 6 F 2 S 0 8 3 4 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 87 6 F 2 S 0 8 3 4 2.4.11 Transfer Trip Function The GRZ100 provides a transfer trip function which receives a trip signal from the remote terminal and outputs a trip command. Two transfer trip commands are provided. The scheme logic is shown in Figure 2.4.11.1.
Page 88 6 F 2 S 0 8 3 4 GRZ100 (Receive) GRZ100 (Send) (−) User configurable User configurable command data (receive) command data (send) BIm command 1744:TR1-A-R1 Transfer trip (A-phase) Sequence Sequence logic logic 1745:TR1-B-R1 Transfer trip BIn command (B-phase) by PLC by PLC 1746:TR1-C-R1 Transfer trip...
Page 89 6 F 2 S 0 8 3 4 2.4.12 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 90 6 F 2 S 0 8 3 4 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 91 6 F 2 S 0 8 3 4 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 92 6 F 2 S 0 8 3 4 2.4.13 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 93 6 F 2 S 0 8 3 4 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 2.4.13.2 Out-of-Step Tripping Logic Setting The setting elements for the out-of-step protection and their setting ranges are as follows: Element...
Page 94 6 F 2 S 0 8 3 4 2.4.14 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 95 6 F 2 S 0 8 3 4 CB-AND VTF1_ALARM 142:UVFGOR UVFS ≥1 140:UVFSOR & 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 96 6 F 2 S 0 8 3 4 2.4.15 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 97 6 F 2 S 0 8 3 4 PSBSZ and PSBGZ have same functions and characteristics as shown in Figures 2.4.15.1 and 2.4.15.2, 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 98 6 F 2 S 0 8 3 4 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 2.4.15.4.
Page 99 6 F 2 S 0 8 3 4 Element Range Step Default Remarks 6 V fixed DOCNR 4.0 A fixed Reverse looking negative ( 0.8A fixed) sequence directional element 6 V fixed PSB-Z1 OFF/ON Z1 blocked under power swing PSB-Z1X OFF/ON Z1X blocked under power swing PSB-Z2...
Page 100 6 F 2 S 0 8 3 4 2.4.16 Tripping Output Signals The single-phase tripping signals drive the high-speed tripping output relays according to the tripping logic in Figure 2.4.16.1. Two sets of output relays are provided for each phase and each relay has one normally open contact.
Page 101 6 F 2 S 0 8 3 4 2.5 Communication System 2.5.1 Integral Digital Communication Interface 2.5.1.1 Communication System Topologies GRZ100 provides an integral digital communication channel for protection signaling. Four communication topologies are available depending on the model. Models 211/214/216/311B support configuration (a) only in Figure 2.5.1.1.
Page 102 6 F 2 S 0 8 3 4 In the dual redundant communication system, if the transmission delay time of CH1 is large without reference to that of CH2, the carrier tripping time at the remote terminal is delay. 2.5.1.2 Transmission Data The following data are transmitted to the remote terminal via the 64kb/s digital link: Positive sequence current Positive sequence voltage...
Page 103 6 F 2 S 0 8 3 4 2.5.1.3 Synchronized Sampling The synchronized sampling is required for the following functions: • Fault location for three-terminal line • Indication for electric power quantities of remote terminal(s) • Time synchronization with remote terminal The GRZ100 performs synchronized simultaneous sampling at all terminals of the protected line.
Page 104 6 F 2 S 0 8 3 4 the slave terminal. The difference of the transmission delay time T dd (= T d1 − T d2 ) is set to zero when sending and receiving take the same route and exhibit equal delays. When the route is separate and the sending and receiving delays are different, T dd must be set at each terminal to be equal to the sending delay time minus the receiving delay time.
Page 105 6 F 2 S 0 8 3 4 Master terminal Slave terminal T d2 T d1 Figure 2.5.1.4 Sampling Address Synchronization 2.5.1.4 Connection to Communication Circuit The GRZ100 can be provided with one of the following interfaces by order type and connected to a dedicated optical fiber communication circuit or multiplexed communication circuit.
Page 106 6 F 2 S 0 8 3 4 Optical fiber circuit GRZ100 Optical interface (a) Direct link Multiplexed circuit Twisted pair cables with shield <60m GRZ100 Electrical interface (b) Electrical link via multiplexer Optical Twisted pair cable fibers with shield <60m GRZ100 Optical interface (c) Optical link via multiplexer...
Page 107 6 F 2 S 0 8 3 4 2.5.1.5 Setup of Communication Circuit The GRZ100 is provided with one set of transmit and receive signal terminals for two-terminal application models and two sets of signal terminals for three-terminal application models. In case of two-terminal applications, the communication circuit is set as shown in Figure 2.5.1.6.
Page 108 6 F 2 S 0 8 3 4 Terminal A Terminal B GRZ100 GRZ100 Signal ground Signal ground Shield Shield (e) Link via Multiplexer (Electrical Interface in accordance with X.21, RS530) Terminal B Terminal A GRZ100 GRZ100 Signal ground Signal ground Shield Shield Signal ground...
Page 109 6 F 2 S 0 8 3 4 Terminal B Terminal A GRZ100 GRZ100 Terminal C GRZ100 Figure 2.5.1.7 Communication Circuit Setup for Three-terminal Applications The three-terminal line application models can be applied to a two-terminal line. In this case, same channel’s TX, RX and CK of both terminals are interlinked and scheme switch [TERM] is set to "2-TERM".
Page 110 6 F 2 S 0 8 3 4 Element Range Step Default Remarks TCDT2 −10000 – 10000 Transmission delay time difference setting 1µs 0µs for channel 2 (*1) (*1) This setting is only used when there is a fixed difference between the sending and receiving transmission delay time.
Page 111 6 F 2 S 0 8 3 4 2.5.2 External Communication Interface 2.5.2.1 Interface with Signaling Equipment GRZ100 interfaces with protection signaling equipment through binary input and output circuits as shown in Figure 2.5.2.1. Receiving command signals for remote terminal 1 from the signaling equipment are input to photo-coupler circuits BIn and BIm.
Page 112 6 F 2 S 0 8 3 4 2.5.2.2 Signaling Channel Table 2.5.2.1 shows the protection scheme and required signaling channel. "Simplex" here means that a transmit signal is shared by all terminals. "Multiplex" means that a specific channel is used for each terminal.
Page 113 6 F 2 S 0 8 3 4 Selecting "And" for the scheme switch [CHSEL] in two signals reception will allow ANDing of two signals to be set as signal R1-CR. When directional earth fault command protection (see Section 2.4.4.1) is used with POP, UOP or BOP scheme of distance protection and two channels are available, signal channel can be separated from distance protection by setting the scheme switch [CHSEL] to "Single"...
Page 114 6 F 2 S 0 8 3 4 2.6 Characteristics of Measuring Elements 2.6.1 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 2.6.1.1, 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 115 6 F 2 S 0 8 3 4 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 116 6 F 2 S 0 8 3 4 PSBZ PSBOUT PSBIN PSBZ PSBZ PSBZ Figure 2.6.1.4 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 117 6 F 2 S 0 8 3 4 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 − V 0 ) ∠ − 90° + V bc For an A-phase earth fault element V pa = 3 (V a −...
Page 118 6 F 2 S 0 8 3 4 I = fault current Zs = zone reach setting Zso = offset zone reach setting Figure 2.6.1.7 is a voltage diagram showing the offset mho characteristics obtained by the phase comparison between S1 and S2. The offset mho characteristic on the impedance plane is obtained by dividing the voltage in Figure 2.6.1.7 by current I.
Page 119 6 F 2 S 0 8 3 4 reactance element operates when four consecutive measurements are made. This decision method prevents transient overreaching occurring for faults close to the element boundary. θ 1 90 ° θ 2 (b) Z2 and ZF (a) Z1 and Z1X Figure 2.6.1.8 Reactance Element The setting of θ1(Z1θ1) and θ2(Z1θ2) are set to the following:...
Page 120 6 F 2 S 0 8 3 4 R = resistance component of measured impedance X = reactance component of measured impedance Rs = reach setting The characteristic BFL is obtained by the following equation. Polarizing voltage employed is the same as employed for mho element.
Page 121 6 F 2 S 0 8 3 4 The characteristic of the directional element is obtained by the following equation. I･Vp cos ( θ − φ ) ≥ 0 where, I = fault current Vp = polarizing voltage φ = lagging angle of I to Vp θ...
Page 122 6 F 2 S 0 8 3 4 θ Figure 2.6.1.12 Offset Directional Element The characteristic of the offset directional element is obtained by the following equation. X + R tanθ ≦ Z where, X = reactance component of measured impedance R = resistance component of measured impedance θ...
Page 123 6 F 2 S 0 8 3 4 I = fault current θ = angle difference between V and IZs Zs = impedance setting Vs = undervoltage setting When the value and angle of Zs are set to those similar to the impedance of the protected line, the phase selection element will detect all single-phase earth faults that have occurred on the protected line even with a strong source and the voltage drop is small.
Page 124 6 F 2 S 0 8 3 4 θ = characteristic angle setting (lagging to polarizing voltage) I sf , I sr = current setting V sf , V sr = voltage setting 2.6.4 Inverse Definite Minimum Time Overcurrent Element IDMT As shown in Figure 2.6.4.1, the IDMT element has one long time inverse characteristic and three inverse time characteristics in conformity with IEC 60255-3.
Page 125 6 F 2 S 0 8 3 4 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 126 6 F 2 S 0 8 3 4 −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 2.6.6 Voltage and Synchronism Check Elements OVL, UVL, OVB, UVB, and SYN The voltage check and synchronism check elements are used for autoreclose.
Page 127 6 F 2 S 0 8 3 4 The phase difference is checked by the following equations. VB ⋅ VL cos θ ≥ 0 VB ⋅ VL sin (SY1θs) ≥ VB ⋅ VL sinθ where, θ = phase difference between VB and VL SY1θs = phase difference setting A detected slip cycle is determined by the following equation: θs...
Page 128 6 F 2 S 0 8 3 4 2.6.8 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 129 6 F 2 S 0 8 3 4 2.6.9 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 130 6 F 2 S 0 8 3 4 2.7 Autoreclose 2.7.1 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 131 6 F 2 S 0 8 3 4 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 132 6 F 2 S 0 8 3 4 2.7.2 Scheme Logic 2.7.2.1 One-breaker Autoreclose Figure 2.7.2.1 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 133 6 F 2 S 0 8 3 4 • 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. At this time, autoreclose is not activated. Autoreclose for single-phase fault If the autoreclose mode is set to "SPAR"...
Page 134 6 F 2 S 0 8 3 4 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 135 6 F 2 S 0 8 3 4 Using the scheme switch [VCHK], the energizing direction can be selected. 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.
Page 136 6 F 2 S 0 8 3 4 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 137 6 F 2 S 0 8 3 4 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 5 - 300s ≥...
Page 138 6 F 2 S 0 8 3 4 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 139 6 F 2 S 0 8 3 4 Setting of [ARC-CB] Autoreclose mode Single-phase autoreclose: Both breakers are reclosed simultaneously. (*1) Three-phase autoreclose: The busbar breaker is reclosed first. If successful, then the center breaker is reclosed. Single-phase autoreclose: Both breakers are reclosed simultaneously. (*1) Three-phase autoreclose: The center breaker is reclosed first.
Page 140 6 F 2 S 0 8 3 4 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 141 6 F 2 S 0 8 3 4 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 2.7.2.8 shows the energizing control scheme of the two circuit breakers in the three-phase autoreclose.
Page 142 6 F 2 S 0 8 3 4 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 143 6 F 2 S 0 8 3 4 Element Range Step Default Remarks 0.01 - 100.00 s 0.01 s 2.00 s Autoreclose reset time TEVLV 0.01 - 10.00 s 0.01 s 0.30 s Dead time reset for evolving fault TRDY1 5 - 300 s 60 s Reclaim time...
Page 144 6 F 2 S 0 8 3 4 Busbar Line GRZ100 VT setting For distance protection Line VT VTs1 setting Busbar VT Reference voltage voltage synchronism check Figure 2.7.3.1 VT and VTs1 Ratio Setting for Busbar or Line Voltage 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.
Page 145 6 F 2 S 0 8 3 4 Note : is set to " " only when the relay is applied to one-breaker system. Trip and reclose [ARC-CB] commands are output only for CB1(bus CB). 2.7.4 Autoreclose Output Signals The autoreclose scheme logic has two output reclosing signals: ARC1 and ARC2. ARC1 is a reclosing signal for a single breaker autoreclose or a reclosing signal for the busbar breaker in a two-breaker autoreclose scheme.
Page 146 6 F 2 S 0 8 3 4 2.8 Fault Locator 2.8.1 Application GRZ100 provides the following two type fault location methods: Fault location using the only local end data for two terminal application Fault location using the local and remote end data (only for integral communication and three terminal application) The fault locator using the only local end data is applied when the scheme switch “CO.LINK”...
Page 147 6 F 2 S 0 8 3 4 2.8.2 Starting Calculation Calculation of the fault location cab be initiated by one of the following tripping signals. • command protection trip • zone 1 trip • zone 2 trip • zone 3 trip •...
Page 148 6 F 2 S 0 8 3 4 X 1 = reactance component of line positive sequence impedance K bc = impedance imbalance compensation factor I m ( ) = imaginary part in parentheses R e ( ) = real part in parentheses L = line length (km) Distance calculation for earth fault (in the case of A-phase earth fault) ⋅...
Page 149 6 F 2 S 0 8 3 4 2.8.4.2 Fault location using the local and remote end data Calculation Principle In the case of a two-terminal line as shown in Figure 2.8.4.1, the relationship between the voltages at the local and remote terminals and the voltage at the fault point are expressed by Equations (1) and (2).
Page 150 6 F 2 S 0 8 3 4 Figure 2.8.4.2 Three-terminal Model χ A = (V A − V B + Z A (I B + I C ) + Z B I B ) / Z A I d χ...
Page 151 6 F 2 S 0 8 3 4 Z 11 = (Z aa + Z bb + Z cc - Z ab - Z bc - Z ca )/3 Z 12 = (Z aa + a Z bb + aZ cc + 2(aZ ab + Z bc + a Z ca ))/3 Z 10 = (Z aa + aZ bb + a Z cc - a...
Page 152 6 F 2 S 0 8 3 4 Item Range Step Default Remarks Section 1 0.0 - 199.99 Ω 0.01 Ω 0.20Ω (0.0 - 999.9 Ω 0.1 Ω 1.0Ω) (*) 0.0 - 199.99 Ω 0.01 Ω 2.00Ω (0.0 - 999.9 Ω 0.1 Ω...
Page 153 6 F 2 S 0 8 3 4 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 211, 214, 221, 224, 311 and 321 have type A case, while models 216, 226 and 323 have type B cases. Case outlines are shown in Appendix F.
Page 154 6 F 2 S 0 8 3 4 IO#2 SPM IO#4 IO#1 IO#3 IO#1: IO1(Model 323), IO8(Model 216, 226) IO#2: IO2 IO#3: IO4(Model 323), IO5(Model 216, 226) IO#4: IO4 Figure 3.1.1.2 Hardware Structure (Model: 216, 226, 323) The relationship between each model and module used is as follows: Models 211, 221 Module...
Page 155 6 F 2 S 0 8 3 4 Telecommunication system Binary I/O Module (IO#1)(*1) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15(IO1) or Binary input MPU2 ×12(IO8) CT×5 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1...
Page 156 6 F 2 S 0 8 3 4 Telecommunication system Binary I/O Module (IO#1)(*1) DC/DC Converter supply Transformer Signal Processing and Communication Module Module (VCT) (SPM) Photocoupler ×15(IO1) or Binary input MPU2 ×12(IO8) CT×5 Analog Auxiliary relay filter Converter Binary output (High speed) Trip MPU1...
Page 157 6 F 2 S 0 8 3 4 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 158 6 F 2 S 0 8 3 4 3.1.3 Signal Processing Module The signal processing and communication module (SPM) incorporates a signal processing circuit and a telecommunication control circuit. Figure 3.1.3.1 shows the block diagram. The telecommunication control circuit is incorporated in the sub-module GCOM. The signal processing circuit consists of an analog filter, multiplexer, analog to digital (A/D) converter, main processing unit (MPU1) and memories (RAM and ROM), and executes all kinds of processing including protection, measurement, recording and display.
Page 159 6 F 2 S 0 8 3 4 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 160 6 F 2 S 0 8 3 4 IO8 module Line filter DC/DC supply ( − ) converter Photo-coupler Auxiliary relay (high speed) Tripping Binary command input (× 3) signals (× 12) Figure 3.1.4.2 IO8 Module  159 ...
Page 161 6 F 2 S 0 8 3 4 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 162 6 F 2 S 0 8 3 4 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 163 6 F 2 S 0 8 3 4 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 164 6 F 2 S 0 8 3 4 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 165 6 F 2 S 0 8 3 4 Liquid crystal display Light emitting diode 214B-13-10 100/110/115/120V Operation keys Monitoring jack • RS232C connector Figure 3.1.5.1 Front Panel  164 ...
Page 166 6 F 2 S 0 8 3 4 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 167 6 F 2 S 0 8 3 4 Table 3.2.1.2 (a) Default Binary Input Allocation of Model 211B, 221B M odul e Set t i ng BI No. Cont ent s Name Si gnal No. & Si gnal Name Nor m or I nv I O #1 BI 1 CB AUXI LI ARY CO NTACT - A Ph...
Page 168 6 F 2 S 0 8 3 4 Table 3.2.1.2(c) Default Binary Input Allocation of Model 216B, 226B M odul e Set t i ng BI No. Cont ent s Name Si gnal No. & Si gnal Name Nor m or I nv I O #1 BI 1 CB AUXI LI ARY CO NTACT - A Ph...
Page 169 6 F 2 S 0 8 3 4 Table 3.2.1.2(e) Default Binary Input Allocation of Model 323B M odul e Set t i ng BI No. Cont ent s Name Si gnal No. & Si gnal Name Nor m or I nv I O #1 BI 1 CB1 AUXI LI ARY CO NTACT - A Ph...
Page 170 6 F 2 S 0 8 3 4 BI1_command CB1_CONT-A 1536 & BI2_command CB1_CONT-B CB-AND 1537 BI3_command CB1_CONT-C 1538 [Default setting] ≥1 CB-OR & CB-DISCR & & ≥1 & & Figure 3.2.1.2 Circuit Breaker Signals Transformation 3.2.2 Binary Output Signals The number of binary output signals and their output terminals vary depending on the relay models.
Page 171 6 F 2 S 0 8 3 4 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 tool”...
Page 172 6 F 2 S 0 8 3 4 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 173 6 F 2 S 0 8 3 4 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 174 6 F 2 S 0 8 3 4 If a data failure occurs between the local terminal and remote terminal 1 and lasts for ten seconds, failure alarms "Com1 fail" and "Com1 fail-R" are issued at the local and remote terminals respectively.
Page 175 6 F 2 S 0 8 3 4 Note 2: Under any of the following conditions, the signal channel test does not start. • BOP is not selected as the protection scheme. • Telecommunication equipment is out-of-service. • Scheme switch [CHMON] is set to "Off". •...
Page 176 6 F 2 S 0 8 3 4 Table 3.3.8.1 Supervision Items and Alarms Supervision item LCD message External Event record message "IN SERVICE" "ALARM" alarm input imbalance monitoring A/D accuracy check Relay fail Memory monitoring   Watch Dog Timer ...
Page 177 6 F 2 S 0 8 3 4 When a failure is detected by relay address monitoring in integral digital communication, a command protection is blocked. 3.3.10 Setting The setting elements necessary for the automatic supervision and their setting ranges are shown in the table below.
Page 178 6 F 2 S 0 8 3 4 Terminal B Terminal A RYID=1 RYID=0 RYID1=0 RYID1=1 Communication port (a) Two-terminal Application Terminal B Terminal A RYID=1 RYID=0 RYID1=0 RYID1=1 RYID2=0 RYID2=1 (b) Two-terminal Application (Dual) Terminal A Terminal B RYID=0 RYID=1 RYID1=1 RYID1=2...
Page 179 6 F 2 S 0 8 3 4 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. 3.4.1 Fault Recording Fault recording is started by a tripping command of the GRZ100, a tripping command of the...
Page 180 6 F 2 S 0 8 3 4 application, however, the measurement result is expressed as a fault section instead of a percentage. For the fault locator, see Section 2.8.3 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 181 6 F 2 S 0 8 3 4 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 182 6 F 2 S 0 8 3 4 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 183 6 F 2 S 0 8 3 4 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. [Local terminal] 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 )
Page 184 6 F 2 S 0 8 3 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 185 6 F 2 S 0 8 3 4 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 186 6 F 2 S 0 8 3 4 4.1.2 Communication Ports The following 4 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 •...
Page 187 6 F 2 S 0 8 3 4 36-pin terminal block 20-pin terminal block ST, LC type connector or D-sub connector for Telecommunication IRIG BNC connector RS485 connection terminal RJ45 connector (option) Relay rear view (Case Type A) ST, SC type connector or D-sub connector for Telecommunication IRIG BNC...
Page 188 6 F 2 S 0 8 3 4 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 189 6 F 2 S 0 8 3 4 Notes: 1) When configurable LEDs (LED1 through LED4) are assigned to latch signals by trigger of RESET tripping, press the key more than 3s until the LCD screens relight. Confirm turning off the configurable LEDs.
Page 190 6 F 2 S 0 8 3 4 automatically. If a failure is detected while any of the screens is displayed, the current screen remains displayed and the "ALARM" LED lights. Notes: 1) When configurable LEDs (LED1 through LED4) are assigned to latch signals by issuing an RESET alarm, press the key more than 3s until all LEDs reset except "IN SERVICE"...
Page 191 6 F 2 S 0 8 3 4 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 192 6 F 2 S 0 8 3 4 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 193 6 F 2 S 0 8 3 4 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 194 6 F 2 S 0 8 3 4 • Move the cursor to the fault record line to be displayed using the keys and press the ENTER key to display the details of the fault record. ／４Ｆａｕｌｔｒｅｃｏｒｄ＃１３／...
Page 195 6 F 2 S 0 8 3 4 F a u l t r e c o r d C l e a r a l l f a u l t r e c o r d s ? E N T E R = Y e s C A N C E L = N o •...
Page 196 6 F 2 S 0 8 3 4 • Select 1 (= Record) to display the "Record" sub-menu. • Select 3 (= Disturbance record) to display the "Disturbance record" screen. r e c o r r b a n c e 2 = C l e a r •...
Page 197 6 F 2 S 0 8 3 4 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 198 6 F 2 S 0 8 3 4 • 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 199 6 F 2 S 0 8 3 4 ／２Ｍｅｔｅｒｉｎｇ１２／Ｆｅｂ／１９９８２２：５６３／３６Ｖａ＊＊＊．＊ｋＶ＊＊＊．＊° Ｉａ＊＊．＊＊ｋＡ＊＊＊．＊° Ｖｂ＊＊＊．＊ｋＶ＊＊＊．＊° Ｉｂ＊＊．＊＊ｋＡ＊＊＊．＊° Ｖｃ＊＊＊．＊ｋＶ＊＊＊．＊° Ｉｃ＊＊．＊＊ｋＡ＊＊＊．＊° Ｖａｂ＊＊＊．＊ｋＶ＊＊＊．＊° Ｉａｂ＊＊．＊＊ｋＡ＊＊＊．＊° Ｖｂｃ＊＊＊．＊ｋＶ＊＊＊．＊°...
Page 200 6 F 2 S 0 8 3 4 The display format is shown below. Input (IO#1) BI10 BI11 BI12 — — — Input (IO#2) BI16 BI17 BI18 — — — — — — — — — — — — Input (IO#3) BI19 BI20 BI21...
Page 201 6 F 2 S 0 8 3 4 The display format is as shown below. Z1XG ZR1G ZR2G ZNDG Z1XS ZR1S ZR2S ZNDS — — — OCDP DEF, OV DEFF DEFR EFI — — — — — — — — —...
Page 202 6 F 2 S 0 8 3 4 4.2.4.4 Displaying the Status of the Time Synchronization Source The inner clock of the GRZ100 can be synchronized with external clocks such as the IRIG-B time standard signal clock or RSM (rlay setting and monitoring system) clock or by an IEC60870-5-103 control system or RMT (synchronizing with remote terminal).
Page 203 6 F 2 S 0 8 3 4 ／２ＤｉｒｅｃｔｉｏｎＰｈａｓｅＡ：ＦｏｒｗａｒｄＰｈａｓｅＢ：ＦｏｒｗａｒｄＰｈａｓｅＣ：Ｆｏｒｗａｒｄ Note: If the load current is less than 0.04xIn, the direction is expressed as “----“. The BFL element is used to detect the direction of load current and shared with blinder. (See Figure 2.4.1.13.) 4.2.5 Viewing the Settings...
Page 204 6 F 2 S 0 8 3 4 4.2.6 Changing the Settings The "Setting (change)" sub-menu is used to make or change settings for the following items: Password Description Address in the RSM or IEC60870-5-103 communication Recording Status Protection Binary input Binary output All of the above settings except the password can be seen using the "Setting (view)"...
Page 205 6 F 2 S 0 8 3 4 When the screen shown below is displayed, perform setting as follows. The number to the right of "Current No. = " shows the current setting. P r o t e c t i o n s c h e m e 1 = 3 Z O N E 2 = Z 1 - E X T 3 = P U P 4 = P O P 5 = U O P 6 = B O P 8 = U O P + D E F 9 = B O P + D E F...
Page 206 6 F 2 S 0 8 3 4 To select a character, use keys 2, 4, 6 and 8 to move blinking cursor down, left, right and up, " → " and " ← " on each of lines 2 to 4 indicate a space and backspace, respectively. A maximum of 22 characters can be entered within the brackets.
Page 207 6 F 2 S 0 8 3 4 • Press 1 (= Password) to display the "Password" screen. P a s s w o r d I n p u t n e w p a s s w o r d R e t y p e n e w p a s s w o r d...
Page 208 6 F 2 S 0 8 3 4 D e s c r i p t i o n 1 = P l a n = D e s c r i • To enter the plant name, select 1 (= Plant name) on the "Description" screen. P l a n t n a m e ←...
Page 209 6 F 2 S 0 8 3 4 • Enter the address number on "HDLC" column for RSM and/or "IEC" column for IEC60870-5-103 and the compensation value on "SYADJ" column for adjustment of time synchronization of protocol used. ( − : lags the time, +: leads the time) And enter IP address for IP1-1 to IP1-4, Subnet mask for SM1-1 to SM4, and Default gateway for GW1-1 to GW1-4.
Page 210 6 F 2 S 0 8 3 4 Setting the fault recording • Press 1 (= Fault record) to display the "Fault record" screen. r e c o r d 1 = O n l o c a t o 0 = O f f •...
Page 211 6 F 2 S 0 8 3 4 / ４ R e c o r d t i m e & s t a r t e r 1 / 5 T i m e 0 . 1 - 3 . 0 ) : 2 .
Page 212 6 F 2 S 0 8 3 4 S t a t u s 1 = M e t e r i n g 2 = T i m e s y n c h r o n i z a t i o n 3 = T i m e z o n e Setting the metering...
Page 213 6 F 2 S 0 8 3 4 Setting the time zone When the calendar clock is synchronized with the IRIG-B time standard or GPS signal, it is possible to transform GMT to the local time. • Press 3 (= Time zone) to display the "Time zone" screen. T i m e z o n e 1 / 1...
Page 214 6 F 2 S 0 8 3 4 Setting the line parameters Enter the line name, VT&CT ratio and settings for the fault locator as follows: • Press 1 (= Line parameter) on the "Protection" screen to display the "Line parameter" screen. L i n e p a r a m e t e r ( G r o u p...
Page 215 6 F 2 S 0 8 3 4 F a u l Ω 9 9 . Ω . 0 0 9 9 . Ω 9 9 . Ω 9 9 . Ω . 0 0 9 9 . Ω 9 9 . Ω...
Page 216 6 F 2 S 0 8 3 4 The [B.SYN1] and [B.SYN2] are set to “ON” when the relay is linked a multiplexer. Set to “OFF” when direct link is applied. However [TERM], [CH.USE], [CH.CON], [T.SFT2] and [B.SYN2] items are not displayed in the case of 2 terminal models.
Page 217 6 F 2 S 0 8 3 4 Protection scheme setting • Press 1 (= Protection scheme) on the "Trip" screen to display the "Protection scheme" screen. P r o t e c t i o n s c h e m e 1 = 3 Z O N E 2 = Z 1 - E X T 3 = P U P 4 = P O P 5 = U O P 6 = B O P 8 = U O P + D E F 9 = B O P + D E F 7 = P O P + D E F...
Page 218 6 F 2 S 0 8 3 4 ／６Ｓｃｈｅｍｅｓｗｉｔｃｈ１／＊＊ＺＳ－Ｃ１＝Ｍｈｏ２＝Ｑｕａｄ１＿ＺＧ－Ｃ１＝Ｍｈｏ２＝Ｑｕａｄ１ＢＬＺＯＮＥ１＝ＣＯＭ２＝ＩＮＤ１Ｚ１ＣＮＴ１＝１２＝２３＝３４＝４５＝５１ＰＳＢ－Ｚ１０＝Ｏｆｆ１＝Ｏｎ１：：ＰＳＢ－ＴＰ０＝Ｏｆｆ...
Page 219 6 F 2 S 0 8 3 4 • 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 220 6 F 2 S 0 8 3 4 ／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 221 6 F 2 S 0 8 3 4 • 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 222 6 F 2 S 0 8 3 4 ／７ＯＣ，ＤＥＦ＆ＵＶ１／＊＊ＯＣＨ（２．０－１５．０）：２．０＿ＡＴＳＯＴＦ（０－３００）：５ｓＯＣＢＦ（０．５－１０．０）：０．５ＡＴＢＦ１（５０－５００）：５０ｍｓＴＢＦ２...
Page 223 6 F 2 S 0 8 3 4 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 224 6 F 2 S 0 8 3 4 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 225 6 F 2 S 0 8 3 4 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 226 6 F 2 S 0 8 3 4 • 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 227 6 F 2 S 0 8 3 4 ENTER key. • Press the END 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 228 6 F 2 S 0 8 3 4 • Press the END key to return to the "Setting" screen. 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...
Page 229 6 F 2 S 0 8 3 4 The gradient characteristic of Zone 1 and Zone 1X reactance elements is obtained only when the load current is transmitted from local to remote terminal. So, the switch [XANGLE] is used to fix the gradient characteristic for testing.
Page 230 6 F 2 S 0 8 3 4 ／２Ｓｗｉｔｃｈ１／２９Ａ．Ｍ．Ｆ．０＝Ｏｆｆ１＝Ｏｎ１＿Ｚ１Ｓ－１ＰＨ０＝Ｏｆｆ１＝Ｏｎ０ＺＢ－ＣＴＲＬ０＝Ｎｏｒｍ１＝ＯＦＳＴ２＝Ｎｏｎ－ＯＦＳＴ０ＸＡＮＧＬＥ０＝Ｏｆｆ１＝Ｏｎ０ＤＯＣＮ－Ｃ０＝Ｏｆｆ１＝Ｏｎ０Ｌ．ｔｅｓｔ０＝Ｏｆｆ１＝Ｏｎ０Ｔ．ｔｅｓｔ０＝Ｏｆｆ１＝Ｏｎ０...
Page 231 6 F 2 S 0 8 3 4 Note : The switch [T. TEST] must be used only when all the terminals are out-of-service. The [D. TEST] is used to test the relay models with an optical interface. Setting the [D. test] to "1" (= On) enables loop-back tests under the direct connection of the communication circuit.
Page 232 6 F 2 S 0 8 3 4 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 233 6 F 2 S 0 8 3 4 • Enter 1 and press the ENTER key. • 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 g 1 o p e r a t P r e s s C A N C E L...
Page 234 6 F 2 S 0 8 3 4 4.2.7.5 Logic Circuit It is possible to observe the binary signal level on the signals listed in Appendix B with monitoring 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 (...
Page 235 6 F 2 S 0 8 3 4 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 236 6 F 2 S 0 8 3 4 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 237 6 F 2 S 0 8 3 4 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 238 6 F 2 S 0 8 3 4 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 239 6 F 2 S 0 8 3 4 № Instructions Do not insert the connector obliquely. Tighten the connector when connecting. Do not pull the cable. Do not bend the cable. Do not bend the neck of the connector. Do not twist the cable. Do not kink in the cable.
Page 240 6 F 2 S 0 8 3 4 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 241 6 F 2 S 0 8 3 4 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 242 6 F 2 S 0 8 3 4 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 243 6 F 2 S 0 8 3 4 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 244 6 F 2 S 0 8 3 4 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 245 6 F 2 S 0 8 3 4 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 246 6 F 2 S 0 8 3 4 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 247 6 F 2 S 0 8 3 4 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 248 6 F 2 S 0 8 3 4 6.5.1.1 Distance Measuring Element Z1, Z1X, Z2, Z3, Z4, ZF, ZR1, ZR2 and PSB 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 249 6 F 2 S 0 8 3 4 • 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 0.01 - 0.05 Ω...
Page 250 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 251 6 F 2 S 0 8 3 4 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 -A16 power -A17 − supply voltmeter Figure 6.5.1.2 Testing Earth-Fault Element Earth fault elements and their output signal number are listed below.
Page 252 6 F 2 S 0 8 3 4 Reach setting Error 0.01 - 0.05 Ω ± 10% (0.1 - 0.2 Ω 5A)(*) 0.06 - 0.09 Ω ± 7% (0.3 - 0.4 Ω 0.1 - 1.0 Ω ± 5% (0.5 - 5.0 Ω 1.01 - 10.0 Ω...
Page 253 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 254 6 F 2 S 0 8 3 4 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 255 6 F 2 S 0 8 3 4 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 256 6 F 2 S 0 8 3 4 • 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 257 6 F 2 S 0 8 3 4 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 258 6 F 2 S 0 8 3 4 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 259 6 F 2 S 0 8 3 4 Figure 6.5.1.3 Testing DOCN Element 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 −...
Page 260 6 F 2 S 0 8 3 4 6.5.1.7 Thermal overload element THM-A and THM-T The testing circuit is same as the circuit shown in Figure 6.5.1.4. The output signal of testing element is assigned to the monitoring jack A. The output signal numbers of the elements are as follows: Element Signal No.
Page 261 6 F 2 S 0 8 3 4 • Enter the signal number to observe the operation at the monitoring jack A as shown in Section 6.5.1. • Apply the three-phase balance current at 10% of the rated current and interrupt a phase current.
Page 262 6 F 2 S 0 8 3 4 • Decrease the voltage and measure the value at which the element operates. Check that the measured value is within ± 5% of the setting. Operating time check of OVS1, OVG1, UVS1, UVG1 IDMT curves •...
Page 263 6 F 2 S 0 8 3 4 OVL2 UVL2 SYN1 SYN2 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 264 6 F 2 S 0 8 3 4 Whilst keeping V s1 in-phase with V a , increase the single-phase voltage V s1 from zero volt. Measure the voltage at which the element operates. Check that the measured voltage is within ±...
Page 265 6 F 2 S 0 8 3 4 Operation must be verified by abruptly changing the test current from 0 A to 1.2 × Setting value or vice versa. OCD has a fixed setting of 0.5 A and 0.1 A for 5 A rating and 1 A rating respectively. 6.5.1.12 Level Detectors OCH, OC, EF, EFL, OVG, UVLS and UVLG, UVFS and UVFG, OCBF Voltage or current level detectors are tested by applying voltage or current individually.
Page 266 6 F 2 S 0 8 3 4 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 267 6 F 2 S 0 8 3 4 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.
Page 268 6 F 2 S 0 8 3 4 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 269 6 F 2 S 0 8 3 4 POP tripping (Integral digital communication) Set the scheme switch [SCHEME] to "POP", [WKIT] and [ECHO] to "off". Set the [T.TEST] to “ON”. Apply a zone 1 fault. Check that instantaneous single-phase or three-phase tripping is performed depending on the fault types and setting of autoreclose mode selection switch [ARC-M].
Page 270 6 F 2 S 0 8 3 4 Energize the binary input (EXT-CAR-R1) to simulate trip block signal reception and apply a zone 2 fault. Check that UOP tripping does not occur. Check that the binary output relay (EXT-CAR-S) operates in the normal condition. Apply a zone 2 fault, and check that the binary output relay (EXT-CAR-S) resets.
Page 271 6 F 2 S 0 8 3 4 Check that the operating time is within 1-1.5 cycle. • Set the scheme switch [SOTF-OC] to "Off" and [SOTF-Z ∗ ] to "On" and repeat the above. Breaker failure tripping Set the scheme switch [BF1] to "T" or "TOC" and BF2 to "On". •...
Page 272 6 F 2 S 0 8 3 4 that the signals are instantly observed at jack B and observed at jack A after a 10s delay. Blocking of the voltage-dependent protection is checked as follows: • Apply a three-phase rated voltage. Then, remove single-, two- or three-phase voltage and at the same time apply a zone 1 fault.
Page 273 6 F 2 S 0 8 3 4 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 274 6 F 2 S 0 8 3 4 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 275 6 F 2 S 0 8 3 4 • Press 3 (= Binary output) on the "Test" screen to display the "Binary output" screen. The LCD displays the output modules installed depending on the model. • Enter 2 to select the IO#2 module, the LCD will display the screen shown below, indicating the name of the module, the name of the output relay, the name of the terminal block and the terminal number to which the relay contact is connected.
Page 276 6 F 2 S 0 8 3 4 described above and monitor the signal reception at the other end on the "Binary input & output" screen. In the BOP scheme, the end-to-end test can be carried out more simply on the "Manual test" screen of the "Test"...
Page 277 6 F 2 S 0 8 3 4 terminal number to which the relay contact is connected. Note: The autoreclose command is assigned to any of the output relays by the user setting. The following description is the case for the default setting of model 211. In the default setting, the autoreclose command is set to BO10 of the IO#2 module.
Page 278 6 F 2 S 0 8 3 4 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 279 6 F 2 S 0 8 3 4 Table 6.7.1 LCD Message and Failure Location Message Failure location HMI Communi- Disconn- (GCOM) cation ector cable Channel × Checksum err × ROM data err × ROM-RAM err × SRAM err × BU-RAM err ×...
Page 280 6 F 2 S 0 8 3 4 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 281 6 F 2 S 0 8 3 4 The software name is indicated on the memory device on the module with letters such as GS1ZM1- ∗∗∗ , GS1LC1- ∗∗∗ , etc. CAUTION When handling a module, take anti-static measures such as wearing an earthed wrist band and placing modules on an earthed conductive mat.
Page 282 6 F 2 S 0 8 3 4 (*) 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 283 6 F 2 S 0 8 3 4 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 284 6 F 2 S 0 8 3 4 Appendix A Block Diagram  283 ...
Page 285 6 F 2 S 0 8 3 4 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 286 6 F 2 S 0 8 3 4 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 & TZNDG CB Reclose Command ZNDG...
Page 287 6 F 2 S 0 8 3 4 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 & TZR1G ZR1G &...
Page 288 6 F 2 S 0 8 3 4 Appendix B Signal List  287 ...
Page 289 6 F 2 S 0 8 3 4 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 290 6 F 2 S 0 8 3 4 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 291 6 F 2 S 0 8 3 4 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 292 6 F 2 S 0 8 3 4 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 293 6 F 2 S 0 8 3 4 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 294 6 F 2 S 0 8 3 4 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 295 6 F 2 S 0 8 3 4 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 296 6 F 2 S 0 8 3 4 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 297 6 F 2 S 0 8 3 4 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 298 6 F 2 S 0 8 3 4 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 299 6 F 2 S 0 8 3 4 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 300 6 F 2 S 0 8 3 4 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 301 6 F 2 S 0 8 3 4 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 302 6 F 2 S 0 8 3 4 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 303 6 F 2 S 0 8 3 4 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 304 6 F 2 S 0 8 3 4 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 305 6 F 2 S 0 8 3 4 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 306 6 F 2 S 0 8 3 4 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 307 6 F 2 S 0 8 3 4 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 308 6 F 2 S 0 8 3 4 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 309 6 F 2 S 0 8 3 4 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 TEST LED ON 1407 1408 PRG_LED_RESET...
Page 310 6 F 2 S 0 8 3 4 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 311 6 F 2 S 0 8 3 4 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 312 6 F 2 S 0 8 3 4 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 313 6 F 2 S 0 8 3 4 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 314 6 F 2 S 0 8 3 4 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 315 6 F 2 S 0 8 3 4 Signal lis t N o. Signal N am e C ontents 1811 1812 OVG1_IN ST_TP OVG1 ins tantly trip com m and 1813 OVG2_IN ST_TP OVG2 ins tantly trip com m and 1814 1815 1816 U VS1_IN ST_TP...
Page 316 6 F 2 S 0 8 3 4 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 317 6 F 2 S 0 8 3 4 Signal list Signal Nam e 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...
Page 318 6 F 2 S 0 8 3 4 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 ditto 2662 CON_TPMD7 ditto...
Page 319 6 F 2 S 0 8 3 4 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 320 6 F 2 S 0 8 3 4 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 321 6 F 2 S 0 8 3 4 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 322 6 F 2 S 0 8 3 4 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 323 6 F 2 S 0 8 3 4  322 ...
Page 324 6 F 2 S 0 8 3 4 Appendix C Variable Timer List  323 ...
Page 325 6 F 2 S 0 8 3 4 Variable Timer List Timer Timer No. Contents Timer Timer No. Contents THREE PHASE LIVE LINE TIMER TZ1GA Z1G TRIP TIMER T3PLL ditto TDER DEFR BACK-UP TRIP TIMER TZ1GB ditto TOS1 OVS1 BACK-UP TRIP TIMER TZ1GC TZ2G Z2G TRIP TIMER...
Page 326 6 F 2 S 0 8 3 4 Appendix D Binary Input/Output Default Setting List  325 ...
Page 327 6 F 2 S 0 8 3 4 Binary Input Default Setting List Model 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM CB1-A CB1-B CB1-C TTR1(Transfer trip 1) TTR2(Transfer trip 2) (SPARE) EXT VTF DS N/O CONT DS N/C CONT CRT BLOCK (Carrier protection block) BI10 IND.RESET CB1 READY...
Page 328 6 F 2 S 0 8 3 4 Binary Output Default Setting List Relay Module BO No. Terminal Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: GRZ100 IO#2 A2-A1 TRIP-A1 Trip A phase -211 A2-B1 TRIP-B1...
Page 329 6 F 2 S 0 8 3 4 Relay Module BO No. Terminal No. Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) GRZ100 IO#2 A2-A1 Z1G_TRIP/Z1S_TRIP Z1G TRIP/Z1S TRIP 148, 160 -216 A2-B1 Z2G_TRIP/Z2S_TRIP Z2G TRIP/Z2S TRIP 153, 162 A2-B2...
Page 330 6 F 2 S 0 8 3 4 Relay Module BO No. Terminal Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: GRZ100 IO#2 A2-A1 TRIP-A1/TRIP-A2 Trip A phase 240, 243 -311 A2-B1 TRIP-B1/TRIP-B2 Trip B phase 241, 244 A2-B2...
Page 331 6 F 2 S 0 8 3 4 Relay Module BO No. Terminal Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: GRZ100 IO#2 A2-A1 Z1G_TRIP/Z1S_TRIP Z1G TRIP/Z1S TRIP 148, 160 -224 A2-B1 Z2G_TRIP/Z2S_TRIP Z2G TRIP/Z2S TRIP 153, 162 A2-B2...
Page 332 6 F 2 S 0 8 3 4 Relay Module BO No. Terminal Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB3: GRZ100 IO#2 A2-A1 TRIP-A1/TRIP-A2 Trip A phase 240, 243 -321 A2-B1 TRIP-B1/TRIP-B2 Trip B phase 241, 244 A2-B2...
Page 333 6 F 2 S 0 8 3 4 Relay Module BO No. Terminal Signal Name Contents Setting Name Model Signal No. LOGIC TIMER (OR:1, AND:2) (OFF:0, ON:1) TB2: GRZ100 IO#2 A2-A1 TRIP-A1/TRIP-A2 Trip A phase 240, 243 -323 A2-B1 TRIP-B1/TRIP-B2 Trip B phase 241, 244 A2-B2...
Page 334 6 F 2 S 0 8 3 4 Appendix E Details of Relay Menu and LCD & Button Operation  333 ...
Page 335 6 F 2 S 0 8 3 4 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 336 6 F 2 S 0 8 3 4 /1 Status /2 Metering 12/Feb/1998 22:56 3/34 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 337 6 F 2 S 0 8 3 4 /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=Telecommunication 3=Trip 4=Autoreclose /4 Line parameter (Group 1) /5 Line name 1/ 1 1=Line name Line name ********************...
Page 338 6 F 2 S 0 8 3 4 /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 339 6 F 2 S 0 8 3 4 /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 4=RMT Current No.=0 Select No.= _ /3 Time zone 1/ 1...
Page 340 6 F 2 S 0 8 3 4 /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/ 10 ARC-EXT 0=Off 1=On ARC-DEF 0=Off 1=On...
Page 341 6 F 2 S 0 8 3 4 /1 Test /2 Switch 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 342 6 F 2 S 0 8 3 4 LCD AND BUTTON OPERATION INSTRUCTION MANUAL MODE 1. PRESS ARROW KEY TO MOVE TO EACH DISPLAYED ITEMS NORMAL 2. PRESS "END" KEY TO BACK TO PREVIOUS SCREEN (DISPLAY OFF) 1=RECORD PRESS BUTTON MENU 1=FAULT RECORD EXCEPT FOR...
Page 343 6 F 2 S 0 8 3 4  342 ...
Page 344 6 F 2 S 0 8 3 4 Appendix F Case Outline • Case Type-A: Flush Mount Type • Case Type-B: Flush Mount Type • Case Type-A, B: Rack Mount Type  343 ...
Page 345 6 F 2 S 0 8 3 4 276.2 Front View Side view 4-φ5.5 190.5 34.75 235.4 Optical interface Panel Cut-out TB3/TB4 TB2 A1 B1 A1 B1 TB2-TB4: M3.5 Ring terminal TB1: M3.5 Ring A10 B10 terminal Electrical interface A18 B18 Rear View Terminal Block Case Type-A: Flush Mount Type for Model 211, 214, 221, 224, 311, 321...
Page 346 6 F 2 S 0 8 3 4 276.2 Front View Side view 4-φ5.5 190.5 34.75 Optical interface 345.4 Panel Cut-out TB2 - TB5 A1 B1 TB2-TB5: M3.5 Ring terminal Electrical interface TB1: M3.5 Ring terminal Rear View A18 B18 Terminal Block Case Type-B: Flush Mount Type for Model 216, 226, 323 ...
Page 347 6 F 2 S 0 8 3 4 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 211, 214, 221, 224, 311, 321 ...
Page 348 6 F 2 S 0 8 3 4 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 216, 226, 323  347 ...
Page 349 6 F 2 S 0 8 3 4 247.8 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 350 6 F 2 S 0 8 3 4 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 351 6 F 2 S 0 8 3 4 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 352 6 F 2 S 0 8 3 4 Appendix G External Connections  351 ...
Page 353 6 F 2 S 0 8 3 4 TB3- A2 B O 1 TB2-A1 B O 1 BUS VT B O 2 TB1 -1 B O 3 B O 2 B O 4 B O 3 Io from B O 5 B O 4 adjacent Line CT B O 6...
Page 354 6 F 2 S 0 8 3 4 TB3- A2 TB2-A1 B O 1 B O 1 BUS VT B O 2 TB1 -1 B O 3 B O 2 B O 3 B O 4 Io from B O 4 adjacent Line CT B O 5 B O 5...
Page 355 6 F 2 S 0 8 3 4 TB2- A2 TB5- A1 TB3- A2 B O 1 B O 1 B O 1 BUS VT B O 2 B O 2 TB1 -1 B O 3 B O 2 B O 3 B O 3 B O 4 B O 4...
Page 356 6 F 2 S 0 8 3 4 BUS VT TB3- A2 TB1 -1 TB2-A1 B O 1 B O 1 B O 2 B O 3 B O 2 Io from adjacent Line CT B O 3 B O 4 B O 4 B O 5 B O 5...
Page 357 6 F 2 S 0 8 3 4 BUS VT TB2- A2 TB1 -1 TB5- A2 B O 1 TB3- A2 B O 1 B O 1 B O 2 B O 2 B O 2 B O 3 B O 3 B O 3 Io from adjacent Line CT...
Page 358 6 F 2 S 0 8 3 4 Appendix H Relay Setting Sheet • Relay Identification Transmission line parameters Distance scheme Autoreclose scheme • Contacts setting • Relay and Protection Scheme Setting Sheets  357 ...
Page 359 6 F 2 S 0 8 3 4 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 360 6 F 2 S 0 8 3 4 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 361 6 F 2 S 0 8 3 4 6. Default setting Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating Active group 1 - 8 －...
Page 362 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating SOTF-R1 Off - On － SOTF Zone-R1 trip SOTF-R2 Off - On...
Page 363 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating ZR1S 0.01 - 50.00 0.1 - 250.0 Ω...
Page 364 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating OSTR1 3.0 - 30.0 15 - 150 Ω...
Page 365 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating UVG2 5.0 - 150.0 25.0 25.0 UVG2 element TUG2...
Page 366 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating BISW4 Norm - Inv Norm Norm －...
Page 367 6 F 2 S 0 8 3 4 Default setting (1A rating / 5A rating) Range 1CB-ARC 1CB-ARC 2CB-ARC User № Name Units Contents 2TERM 3TERM 2TERM 3TERM 2TERM 3TERM Setting 5A rating 1A rating PRTCL1 HDLC - IEC103 － CH#1 Communication protocol 232C 9.6 - 19.2 - 38.4 - 57.6...
Page 368 6 F 2 S 0 8 3 4 Event record default setting Default setting Name Range Unit Contents User setting Sig. NO. Signal name type 0 - 3071 Event record signal 1536 CB1 A On/Off － 0 - 3071 ditto 1537 CB1 B On/Off...
Page 369 6 F 2 S 0 8 3 4 Event record default setting Default setting Name Range Unit Contents User setting Sig. NO. Signal name type EV65 0 - 3071 ditto On/Off － EV66 0 - 3071 ditto On/Off － EV67 0 - 3071 ditto On/Off...
Page 370 6 F 2 S 0 8 3 4 Disturbance record default setting Default setting Model Default setting Model Name Range Unit Contents Signal name Signal name disturbance record SIG1 0 - 3071 － TRIP-A TRIP-A triger SIG2 0 - 3071 －...
Page 371 6 F 2 S 0 8 3 4 PLC default setting PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn 2x1, 3x1, 323 2x4, 2x6 None Back Release 90 User...
Page 372 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 373 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 374 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 375 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 376 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 377 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 378 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 379 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 3x6 Back Release 90 User Norm Time Value Signal...
Page 380 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 381 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 382 6 F 2 S 0 8 3 4 PLC default setting Output Timing Logic expression Delay Time / Flip Flop Cycle Relay model relay model Flip Flop Timer № Signal Turn None 2x1, 3x1, 323 2x4, 2x6 Back Release 90 User Norm Time Value Signal...
Page 383 6 F 2 S 0 8 3 4  382 ...
Page 384 6 F 2 S 0 8 3 4 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 385 6 F 2 S 0 8 3 4 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 386 6 F 2 S 0 8 3 4 Function test 4.1 Phase fault element ZS test 2IT × ZS Measured voltage (2V a ) Element Reach setting (ZS) Z1XS ZR1S ZR2S ZNDS PSBSIN PSBSOUT 4.2 Earth fault element ZG test 2IT ×...
Page 387 6 F 2 S 0 8 3 4 4.4 Phase selection element UVC test Element Reach setting (UVCZ) IT × UVCZ + UVCV Measured voltage 4.5 Directional earth fault element DEF test Element Current setting Measured current DEFF DEFR Element Voltage setting Measured voltage DEFF...
Page 388 6 F 2 S 0 8 3 4 (2) Synchronism check element Voltage check Element Setting Measured voltage SYN1 (SY1UV) SYN1 (SY1OV) SYN2 (SY2UV) SYN2 (SY2OV) Phase angle check Element Setting Measured angle SYN1 (SY1θ) SYN2 (SY2θ) 4.9 Thermal overload element test Element Test current Measured operating time...
Page 389 6 F 2 S 0 8 3 4 4.12 BCD element check 4.13 Overvoltage and undervoltage elements test (1) Operating value test Element Voltage Measured Element Voltage Measured setting voltage setting voltage OVS1 OVG1 OVS2 OVG2 UVS1 UVG1 UVS2 UVG2 (2) Operating time test (IDMT) Element Voltage setting...
Page 390 6 F 2 S 0 8 3 4 Appendix J Return Repair Form  389 ...
Page 391 6 F 2 S 0 8 3 4 RETURN / REPAIR FORM Please fill in this form 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 392 6 F 2 S 0 8 3 4 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 393 6 F 2 S 0 8 3 4 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.  392 ...
Page 394 6 F 2 S 0 8 3 4 Customer Name: Company Name: Address: Telephone No.: Facsimile No.: Signature:  393 ...
Page 395 6 F 2 S 0 8 3 4  394 ...
Page 396 6 F 2 S 0 8 3 4 Appendix K Technical Data  395 ...
Page 397 6 F 2 S 0 8 3 4 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 398 6 F 2 S 0 8 3 4 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 399 6 F 2 S 0 8 3 4 Switch-on-to-fault and Stub protection Overcurrent 0.4 to 3.0A in 0.1A steps (1A relay) 2.0 to 15.0A in 0.1A steps (5A relay) 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...
Page 400 6 F 2 S 0 8 3 4 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 401 6 F 2 S 0 8 3 4 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 402 6 F 2 S 0 8 3 4 Fault Locator Line reactance and resistance setting 0.0 to 999.9Ω in 0.1Ω steps (1A relay) 0.00 to 199.99Ω in 0.01Ω steps (5A relay) Line length 0.0 to 399.9km in 0.1km steps Correction factor of impedance between lines 80 to 120% in 1% steps Correction factor of impedance between in each phase 80 to 120% in 1% steps...
Page 403 6 F 2 S 0 8 3 4 Contact Ratings Trip contacts Make and carry 5A continuously, 30A, 290Vdc for 0.5s (L/R=10ms) Break 0.15A, 290Vdc (L/R=40ms) Auxiliary contacts Make and carry 4A continuously, 10A, 220Vdc for 0.5s (L/R≧5ms) Break 0.1A, 220Vdc (L/R=40ms) Durability Make and carry 10,000 operations minimum...
Page 404 6 F 2 S 0 8 3 4 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 405 6 F 2 S 0 8 3 4 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 406 6 F 2 S 0 8 3 4 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 407 6 F 2 S 0 8 3 4 Test Standards Details European Commission Directives 89/336/EEC Compliance with the European Commission Electromagnetic Compatibility Directive is demonstrated according to EN 61000-6-2 and EN 61000-6-4. 73/23/EEC Compliance with the European Commission Low Voltage Directive is demonstrated according to EN 50178 and EN 60255-5.
Page 408 6 F 2 S 0 8 3 4 Appendix L Symbols Used in Scheme Logic  407 ...
Page 409 6 F 2 S 0 8 3 4 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 410 6 F 2 S 0 8 3 4 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 411 6 F 2 S 0 8 3 4  410 ...
Page 412 6 F 2 S 0 8 3 4 Appendix M Example of Setting Calculation  411 ...
Page 413 6 F 2 S 0 8 3 4 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 414 6 F 2 S 0 8 3 4 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 415 6 F 2 S 0 8 3 4 Scheme setting Element Contents Setting SCHEME Protection scheme selection CO.LINK Communication link ZS-C Mho or Quadrilateral characteristic ZG-C Mho or Quadrilateral characteristic CRSCM Carrier out of service CHSEL Carrier channel configuration SINGLE BOSW Carrier sending signal ZONESEL...
Page 416 6 F 2 S 0 8 3 4 CBF related trip BFEXT CBF initiation by ext. trip Out of step trip OVS1EN OVS1 enable OVS2EN OVS2 enable OVG1EN OVG1 enable OVG2EN OVG2 enable UVS1EN UVS1 enable UVS2EN UVS2 enable UVG1EN UVG1 enable UVG2EN UVG2 enable...
Page 417 6 F 2 S 0 8 3 4 Factor “k” is calculated as follows: K = (CT ratio)/(VT ratio) = (600/5A)/((150kV/ 3 )/(110V)/ 3 )) = 0.088 <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 418 6 F 2 S 0 8 3 4 < 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 419 6 F 2 S 0 8 3 4 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 420 6 F 2 S 0 8 3 4 The setting of the BF element should be lower than the minimum fault current: OCBF < (I fmin /CT ratio) × 0.5 = {(0.5 × 2.47kA)/(600/5)} × 0.5 = 5.14A Setting of TBF1 = Breaker opening time + OCBF reset time + Margin = 40ms + 10ms + 20ms = 70ms...
Page 421 6 F 2 S 0 8 3 4 The undervoltage element for weak infeed tripping (UVLS, UVLG) is set to 70% of the rated voltage. Element Setting UVLS UVLG Time setting Time delay setting for zone distance protection Coordination time setting for protection signaling channel This time setting is required only for the Blocking scheme.
Page 422 6 F 2 S 0 8 3 4 ARC reset timer This time element starts to run upon reclosing initiation. ARC output pulse timer The duration of the reclosing pulse depends on the operation time of the breaker. The required pulse time is set by this time element. Element Setting (s) TEVLV...
Page 423 6 F 2 S 0 8 3 4  422 ...
Page 424 6 F 2 S 0 8 3 4 Appendix N IEC60870-5-103: Interoperability and Troubleshooting  423 ...
Page 425 6 F 2 S 0 8 3 4 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 426 6 F 2 S 0 8 3 4 Items for “Measurands”: Type ID(3/9), INF, FUN, Number of measurand, Type of 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 427 6 F 2 S 0 8 3 4 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 428 6 F 2 S 0 8 3 4 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 429 6 F 2 S 0 8 3 4 IEC103 configurator Default setting Description Contents Type 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 430 6 F 2 S 0 8 3 4 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 431 6 F 2 S 0 8 3 4 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 432 6 F 2 S 0 8 3 4 [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 433 6 F 2 S 0 8 3 4 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 434 6 F 2 S 0 8 3 4 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 435 6 F 2 S 0 8 3 4 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 436 6 F 2 S 0 8 3 4 Appendix O Programmable Reset Characteristics and Implementation of Thermal Model to IEC60255-8  435 ...
Page 437 6 F 2 S 0 8 3 4 Programmable Reset Characteristics The overcurrent stages for phase and earth faults, OC1 and EF1, each have a programmable reset feature. Resetting may be instantaneous or definite time delayed. Instantaneous resetting is normally applied in multi-shot auto-reclosing schemes, to ensure correct grading between relays at various points in the scheme.
Page 438 6 F 2 S 0 8 3 4 Implementation of Thermal Model to IEC60255-8 Heating by overload current and cooling by dissipation of an electrical system follow exponential time constants. The thermal characteristics of the electrical system can be shown by equation (1). ...
Page 439 6 F 2 S 0 8 3 4 = 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 440 6 F 2 S 0 8 3 4 Appendix P Data Transmission Format  439 ...
Page 441 6 F 2 S 0 8 3 4 Transmission Format in Integral Digital Communication Figure P-1 shows the data transmission format that applies to the data transmission between relays at the terminals of the transmission lines. The individual parts of the transmission format are described below.
Page 442 6 F 2 S 0 8 3 4 Next Frame 88 bits Frame ’ / V SA / 1 CRC header 10 bits 3 1 1 1 1 1 1 1 2 Frame header Cyclic Redundancy Check Analog value Configurable bits Echo bits (14 bits, Configurable bits for fault locator...
Page 443 6 F 2 S 0 8 3 4  442 ...
Page 444 6 F 2 S 0 8 3 4 Appendix Q Relay Operation under Communication Failure in Backup Carrier Scheme  443 ...
Page 445 6 F 2 S 0 8 3 4 Relay Operation under Communication Failure (CF) Mode Relay operation Communication failure mode PUP scheme POP or UOP scheme BOP scheme (SCFCNT=Trip) BOP scheme (SCFCNT=BLK) -Case 1 (Fault at near A-term) -Case 1 (Fault at near A-term) -Case 1 (Fault at behind A-term) -Case 1 (Fault at behind A-term) CF occurs at relay A’s CH1...
Page 446 6 F 2 S 0 8 3 4 Mode Relay operation Communication failure mode PUP scheme POP or UOP scheme BOP scheme (SCFCNT=Trip) BOP scheme (SCFCNT=BLK) -Case 1 (Fault at near A-term) -Case 1 (Fault at near A-term) -Case 1 (Fault at behind A-term) -Case 1 (Fault at behind A-term) CF occurs at relay B’s CH2 and C’s CH1...
Page 447 6 F 2 S 0 8 3 4 -Case 1 (Fault at near A-term) -Case 1 (Fault at near A-term) -Case 1 (Fault at behind A-term) -Case 1 (Fault at behind A-term) CF occurs at relay A’s CH1 and C’s CH1. Relay A: Z1 trip Relay A: Z1 trip Relay A: BOP trip blocked...
Page 448 6 F 2 S 0 8 3 4 Appendix R Inverse Time Characteristics  447 ...
Page 449 6 F 2 S 0 8 3 4 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 450 6 F 2 S 0 8 3 4 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 451 6 F 2 S 0 8 3 4  450 ...
Page 452 6 F 2 S 0 8 3 4 Appendix S Failed Module Tracing and Replacement  451 ...
Page 453 6 F 2 S 0 8 3 4 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 454 6 F 2 S 0 8 3 4 If any messages are shown on the LCD, the failed module or failed external circuits can be located by referring to the following table. This table shows the relationship between messages displayed on the LCD and estimated failure location.
Page 455 6 F 2 S 0 8 3 4 Table S-1 LCD Message and Failure Location Message Failure location HMI Communi- Disconn- (GCOM) cation ector cable Channel Checksum err × × ROM data err × ROM-RAM err × SRAM err × BU-RAM err ×...
Page 456 6 F 2 S 0 8 3 4 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 457 6 F 2 S 0 8 3 4 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 458 6 F 2 S 0 8 3 4 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 459 6 F 2 S 0 8 3 4  458 ...
Page 460 6 F 2 S 0 8 3 4 Appendix T Ordering  459 ...
Page 461 6 F 2 S 0 8 3 4 Ordering 1. Distance Relay GRZ100 − B − − − Relay Type: Distance relay with integral digital communication GRZ100 Relay Model: Two-terminal line application -Model210: With autoreclose for single breaker scheme 18 BIs, 22 BOs, 6 trip BOs 22 BIs (12-independent), 18 BOs, 3 trip BOs 25 BIs (12-independent), 36 BOs, 3 trip BOs -Model310: With autoreclose for one and a half breaker scheme...
Page 462 6 F 2 S 0 8 3 4 Version-up Records Version Date Revised Section Contents May. 25, 2005 First issue Dec. 28, 2006 Added the description in Table 1.1. (OV&UV, BCD) Added the description. (OV&UV, BCD) 2.4.1.1 Modified the description and Figures 2.4.1.1 and 2.4.1.2. 2.4.1.2 Modified the description and Figure 2.4.1.8, and added Figure 2.4.1.7.

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Toshiba GRZ100-211B Instruction Manual

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