Hitachi Relion REL670 Product Manual

Line distance protection

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Commissioning manual (284 pages)

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Relion

670 SERIES

Line distance protection REL670

Version 2.2

Product guide

Table of Contents

Summary of Contents for Hitachi Relion REL670

Page 1 ® Relion 670 SERIES Line distance protection REL670 Version 2.2 Product guide...
Page 2 (eay@cryptsoft.com) and Tim Hudson (tjh@cryptsoft.com). Trademarks ABB is a registered trademark of ABB Asea Brown Boveri Ltd. Manufactured by/for a Hitachi Energy company. All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.
Page 3 This document has been carefully checked by Hitachi Energy but deviations cannot be completely ruled out. In case any errors are detected, the reader is kindly requested to notify the manufacturer. Other than under explicit contractual commitments, in no event shall Hitachi Energy be responsible or liable for any loss or damage resulting from the use of this manual or the application of the equipment.
Page 4 (Low-voltage directive 2006/95/EC). This conformity is the result of tests conducted by Hitachi Energy in accordance with the product standard EN 60255-26 for the EMC directive, and with the product standards EN 60255-1 and EN 60255-27 for the low voltage directive. The product is...
Page 5: Table Of Contents
25. Certification..............64 11. General calculation.............45 26. Technical data............65 12. Secondary system supervision........45 27. Ordering for customized IED........155 13. Control................46 28. Ordering for pre-configured IED....... 166 14. Scheme communication..........48 29. Ordering for Accessories..........173 15. Logic................50 Hitachi Energy...
Page 6: Document Revision History
SXSWI and SXCBR. Ordering section updated. 2021-06 2.2.5 Added note to Disturbance report and IEC 60870-5-103 protocol 2022-07 2.2.5.4 Introduced RIA600, which is a software implementation of the IED LHMI panel. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 7: Application
The IED can also be provided with full bay control and seeFigure 2.4 interlocking functionality including co-operation with the synchrocheck function to allow integration of the main or backup control. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 8 On request, Hitachi closing of ring bays, automatic load transfer from one Power Grids is available to support the re-configuration busbar to the other, and so on.
Page 9 CHM MHAI PMU REP PTR STHR Q CRSV S CILO S CSWI S XSWI VD SPVC VHM MHAI IEC16000195-4-en.vsd IEC16000195 V4 EN-US Figure 1. Block diagram for configuration A41 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 10 Q CRSV S CILO S CSWI SDE PSDE S XSWI VD SPVC VHM MHAI ZPC PSCH ZPCW PSCH IEC16000196-4-en.vsd IEC16000196 V4 EN-US Figure 2. Block diagram for configuration A42 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 11 S CSWI IN> Control Ud> VTHD UTHD SDE PSDE S XSWI VD SPVC ZPC PSCH ZPCW PSCH VHM MHAI IEC16000197-4-en.vsdx IEC16000197 V4 EN-US Figure 3. Block diagram for configuration B42 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 12 VTHD UTHD S CILO S CSWI SDE PSDE S XSWI VD SPVC VHM MHAI ZPC PSCH ZPCW PSCH IEC16000198-4-en.vsdx IEC16000198 V4 EN-US Figure 4. Block diagram for configuration D42 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 13 51N/67N IN> 3U> 3U< en05000276.vsd IEC05000276-1 V1 EN-US Figure 5. The single breaker packages for single- and three phase tripping typical arrangement for one protection sub-system is shown here. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 14 Figure 6. The multi breaker packages for single- and three phase tripping typical arrangement for one protection sub-system is shown here. Auto- reclose, Synchrocheck and Breaker failure functions are included for each of the two breakers. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 15: Available Functions
= option quantities manual. 3-A03 = optional function included in packages A03 (refer to ordering details) =1/2 CB application. For the pre-configured variants Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 16: Differential Protection
High speed distance protection, quad and mho characteristic ZMFCPDIS High speed distance protection for series comp. lines, quad and mho characteristic PPLPHIZ Phase preference logic PPL2PHIZ Phase preference logic Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 17 Power swing detection, blocking and unblocking PSLPSCH Power swing logic PSPPPAM Poleslip/out-of-step protection 1-B24 1-B24 1-B24 OOSPPAM Out-of-step protection ZCVPSOF Automatic switch onto fault logic, voltage and current based Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 18: Current Protection
Voltage restrained overcurrent protection APPTEF 67NT Average power transient earth fault protection BRPTOC Overcurrent protection with binary release Voltage protection UV2PTUV Two step undervoltage protection OV2PTOV Two step overvoltage protection Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 19: Frequency Protection
Rate-of-change of frequency protection 3-E04 3-E04 3-E04 3-E04 Multipurpose protection CVGAPC General current and voltage 4-F01 4-F01 4-F01 protection General calculation SMAIHPAC Multipurpose filter 67 requires voltage 67N requires voltage Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 20: Secondary System Supervision
IEC 60870-5-103 I103POSCMDV IED direct commands with position for IEC 60870-5-103 I103IEDCMD IED commands for IEC 60870-5-103 I103USRCMD Function commands user defined for IEC 60870-5-103 Secondary system supervision Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 21: Logic
AND, GATE, INV, Extension logic package (see LLD, OR, Table PULSETIMER, RSMEMORY, SLGAPC, SRMEMORY, TIMERSET, VSGAPC, XOR FXDSIGN Fixed signal function block B16I Boolean to integer conversion, 16 bit Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 22: Monitoring
Store value for real inputs DEG_RAD Degree to radians angle converter Monitoring CVMMXN Power system measurement CMMXU Current measurement VMMXU Voltage measurement phase- phase CMSQI Current sequence measurement VMSQI Voltage sequence measurement Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 23 60870-5-103 I103USRDEF Status for user defined signals for IEC 60870-5-103 L4UFCNT Event counter with limit supervision TEILGAPC Running hour meter PTRSTHR 51TF Through fault monitoring 2-M22 2-M22 2-M22 2-M22 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 24 Function for energy calculation and demand handling Table 3. Total number of instances for basic configurable logic blocks Basic configurable logic block Total number of instances GATE PULSETIMER RSMEMORY SRMEMORY TIMERSET Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 25 Reservation function block for apparatus control RESIN1 RESIN2 POS_EVAL Evaluation of position indication XLNPROXY Proxy for signals from switching device via GOOSE GOOSEXLNRCV GOOSE function block to receive a switching device Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 26 Table 6. Total number of instances for configurable logic blocks Q/T Configurable logic blocks Q/T Total number of instances ANDQT INDCOMBSPQT INDEXTSPQT INVALIDQT INVERTERQT ORQT PULSETIMERQT RSMEMORYQT SRMEMORYQT TIMERSETQT XORQT Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 27 1MRK 506 372-BEN Q Version 2.2 Table 7. Total number of instances for extended logic package Extended configurable logic block Total number of instances GATE PULSETIMER RSMEMORY SLGAPC SRMEMORY TIMERSET VSGAPC Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 28 GOOSE function block to receive an integer value GOOSEMVRCV GOOSE function block to receive a measurand value GOOSESPRCV GOOSE function block to receive a single point value ALGOS Supervision of GOOSE subscription Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 29 (see Table PHASORREPORT1, ANALOGREPORT1, BINARYREPORT1, SMAI1 - SMAI12, 3PHSUM, PMUSTATUS AP_1-AP_6 AccessPoint_ABS AP_FRONT Access point front Precision time protocol ROUTE_1-ROUTE_6 Route_ABS1-Route_ABS6 FRONTSTATUS Access point diagnostic for front Ethernet port Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 30 LDCM LDCMRecBinStat2 Receive binary status from LDCM LDCM2M_305 Receive binary status from LDCM2M_312 LDCM, 2Mbit LDCM2M_322 LDCM2M_306 Receive binary status from LDCM2M_313 remote LDCM, 2Mbit LDCM2M_323 Scheme communication Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 31 Carrier receive logic LCNSPTOV Negative sequence overvoltage protection LCZSPTOV Zero sequence overvoltage protection LCNSPTOC Negative sequence overcurrent protection LCZSPTOC Zero sequence overcurrent protection LCP3PTOC Three phase overcurrent LCP3PTUC Three phase undercurrent Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 32 Protocol reporting of binary data via IEEE 1344 and IEC/IEEE 60255-118 (C37.118) , binary 1-8 SMAI1–SMAI12 Signal matrix for analog inputs 3PHSUM Summation block 3 phase PMUSTATUS Diagnostics for IEC/IEEE 60255-118 (C37.118) 2011 and IEEE1344 protocol Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 33 SPA communication mapping SPATD Date and time via SPA protocol BCSCONF Basic communication system GBASVAL Global base values for settings PRIMVAL Primary system values SAFEFILECOPY Safe file copy function Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 34 Three such function blocks value based algorithm. Phase-to-phase current variation are used to form three-phase, phase-segregated differential function is a major one to fulfill the objectives of the startup protection. element. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 35 Distance measuring zone, quadrilateral characteristic for series compensated lines (ZMCPDIS) function has functionality for load encroachment which increases the possibility to detect high resistive faults on heavily loaded lines. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 36 IEC07000117 V2 EN-US Figure 9. Load encroachment influence on the offset mho characteristic and the measuring zones without interfering with the load. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 37 (FRPSPDIS) has power lines and cables in complex network configurations, functionality for load encroachment, which increases the such as parallel lines, multi-terminal lines. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 40 IED. More information regarding synchrophasor communication structure and TCP/UDP configuration is available in Application Manual under section IEC/IEEE 60255-118 (C37.118) Phasor Measurement Data Streaming Protocol Configuration. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 41 EF4PTOC can be set to be directional or non-directional circuit capacity. There is also available one nondirectional independently for each step. 3I0 step and one 3U0 overvoltage tripping step. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 43 Petersen coil are not needed to correctly determine earth fault direction. However, these neutral A reset delay ensures operation for intermittent earth faults. resistors can still be used if already installed in the network. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 45 This can, for example, be used to secondary circuits between the voltage transformer and the detect disturbances in the power system network. Current Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 46 • high-speed and/or delayed auto reclosing accidental human injury. • single and/or three phase auto reclosing • support for single or multi-breaker applications. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 47 Local remote and local remote control functions to handle Generic communication function for Double Point indication the selection of the operator place per bay. QCBAY also (DPGAPC) function block is used to send double point Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 48 The weak-end infeed logic is used in cases where the (ZCPSCH) on important lines where three communication apparent power behind the protection can be too low to activate the distance protection function. When activated, Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 50 15. Logic features. Tripping logic SMPPTRC M12275-3 v15 A function block for protection tripping and general start indication is always provided as a basic function for each Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 51 IED, either for forcing the unused inputs in other function • INDCOMBSPQT combines single input signals to group blocks to a certain level/value, or for creating certain logic. signal. Single position input is copied to value part of Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 52 GUID-7DA0AA9A-CCEA-4467-B67E-45B9C1DC145A v1 Hold minimum and maximum of input (HOLDMINMAX) more than one input is selected, the output will be the function will acquire, compare and hold the minimum and Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 53 Disturbance report (DRPRDRE), always included in the IED, HMI in a straightforward way. acquires sampled data of all selected analog input and Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 54 SSIMG function generates alarms based on the received record disturbances not detected by protection functions. information. Up to ten seconds of data before the trigger instant can be saved in the disturbance file. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 56: Metering
PCFCNT function. A scaled service value is available over the station bus. The special Binary input module with enhanced pulse counting capabilities must be ordered to achieve this functionality. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 57: Human Machine Interface
Ethernet ports and FRONTSTATUS is used for sub-stations. A common source shall be used for IED and communication over the front port. All access point function Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 58: Station Communication
MMS or FTP. different subnetwork. A route consists of a destination address and the address of the gateway to be used when sending data to the destination device, see Figure 14. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 59 SPA communication protocol IEC 61850 quality expander QUALEXP SEMOD120134-5 v2 A single glass or plastic port is provided for the Hitachi GUID-9C5DC78E-041B-422B-9668-320E62B847A2 v1 The quality expander component is used to display the Power Grids SPA protocol. This allows extensions of simple...
Page 60: Remote Communication
2, while the the IEDs. In 2Mbit/s mode, each LDCM can send and OFF output is pulsed with a command with value 1. If in Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 61: Hardware Description
Alternative connectors of Ring lug or Compression type can for serial communication (SPA, IEC 60870-5-103 or DNP3 be ordered. port) and the other port is used for LON communication. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 63 – 1/2 case size (h) 254.3 mm/10.01” (w) 210.1 mm/8.27” – 3/4 case size (h) 254.3 mm/10.01” (w) 322.4 mm/12.69” – 1/1 case size (h) 254.3 mm/10.01” (w) 434.7 mm/17.11” • Wall mounting kit Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 64: Connection Diagrams
DNP 3.0 certificate issued by 10021419-OPE/INC 16-2532 DNV GL IEEE Synchrophasor certificate IEC/IEEE 60255-118-1:2018, issued by IEEE SA Test report no.: 2020004393 * Valid for IEDs produced at factory in Sweden. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 65: Technical Data
= √3 × U × I 8. For operate and reset time testing, the default setting values of the function and BOM module are used if not explicitly stated otherwise. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 66 < 20 mVA at 110 V < 80 mVA at 220 V **) all values for individual voltage inputs Note! All current and voltage data are specified as RMS values at rated frequency Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 67 EL = (24-60) V EL ±20% EL = (90-250) V Power consumption 50 W typically Auxiliary DC power in-rush < 10 A during 0.1 s Supply interruption bridging time < 50 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 68 Binary input operate time 3 ms (Debounce filter set to 0 ms) * Note: For compliance with surge immunity a debounce filter time setting of 5 ms is required. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 69 Binary input operate time 3 ms (Debounce filter set to 0 ms) * Note: For compliance with surge immunity a debounce filter time setting of 5 ms is required. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 70 Max operations with resistive load 2000 Max operations with no load 10000 Operating time < 6 ms <= 1 ms These reed relays have been excluded from UL evaluation. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 71 Max operations with inductive load L/R ≤ 40 ms 1000 Max operations with resistive load 2000 Max operations with no load 10000 Operating time < 6 ms <= 1 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 72 Max operations with inductive load L/R ≤ 40 ms 1000 Max operations with resistive load 2000 Max operations with resistive load (On ≤ 0.2 s) 10000 Max operations with no load 10000 Operating time < 1 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 73 220 V / 0.35 A 250 V / 0.3 A Max operations with resistive load 2 000 Max operations with no load 10 000 Operating time < 6 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 75 IP15846-1 v1 Table 26. Temperature and humidity influence Parameter Reference value Nominal range Influence Ambient temperature, operate +20±5°C -25°C to +55°C 0.02%/°C value Relative humidity 45-75% 10-90% Operative range 0-95% Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 76 Harmonic frequency dependence for high impedance differential ±10.0% , 3rd and 5 harmonic of f protection (10% content) Harmonic frequency dependence for overcurrent protection ±3.0% and 5 harmonic of f Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 77 - X.21-LDCM Impulse voltage test 5 kV, 1.2/50ms, 0.5 J 1 kV, 1.2/50 ms 0.5 J: -SFP galvanic RJ45 - X.21-LDCM Insulation resistance > 100 MW at 500 VDC Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 78 Class I: Rack, flush and wall mount IEC 60255-21-2 Bump test Class I: Rack, flush and wall mount IEC 60255-21-2 Seismic test Class II: Rack mount IEC 60255-21-3 Class I: Flush and wall mount Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 79 (0.000-60.000) s ±0.2% or ±35 ms whichever is greater Reset time delay for startup signal at 0 to 2 x U (0.000-60.000) s ±0.2% or ±35 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 80 Operate time 25 ms typically IEC 60255-121 Reset ratio 105% typically Reset time at 0.1 x Zreach to 2 x Min. = 20 ms Zreach Max. = 50 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 81 Fault resistance, phase-to-phase (0.50–3000.00) Ω/loop faults, forward and reverse Load encroachment criteria: Load resistance, forward and (1.00–3000.00) Ω/phase reverse (5-70) degrees Safety load impedance angle Reset ratio 105% typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 82 Operate time 25 ms typically IEC 60255-121 Reset ratio 105% typically Reset time at 0.1 x Zreach to 2 x Min. = 20 ms Zreach Max. = 50 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 83 Operate time 25 ms typically IEC 60255-121 Reset ratio 105% typically Reset time at 0.1 x Zreach to 2 x Min. = 20 ms Zreach Max. =50 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 84 Angle: at 0 degrees and 85 degrees Resistive reach, zero sequence (0.50–3000.00) Ω/phase Fault resistance, Ph-E faults, (1.00–9000.00) Ω/loop forward and reverse Fault resistance, Ph-Ph faults, (0.50–3000.00) Ω/loop forward and reverse Reset ratio 105% typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 85 ±0.2% of set value or ±35 ms whichever is greater and Ph-Ph operation Operate time 16 ms typically, IEC 60255-121 Reset time at 0.1 to 2 x Zreach Min. = 20 ms Max. = 35 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 86 ±2.0% of U Rotor start angle (90.0 - 130.0) degrees ±5.0 degrees Rotor trip angle (15.0 - 90.0) degrees ±5.0 degrees Zone 1 and Zone 2 trip counters (1 - 20) Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 87 ±0.2% or ±25 ms whichever is greater voltage at 1.2 to 0.8 x U , tOffUN Operating mode No Filter, NoPref Cyclic: 1231c, 1321c Acyclic: 123a, 132a, 213a, 231a, 312a, 321a Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 88 Delay time for activation of dead line (0.000-60.000) s ±0.2% or ±30 ms whichever is greater detection Drop-off delay time of switch onto fault (0.000-60.000) s ±0.2% or ±30 ms whichever is greater function Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 89 (0.5–2.0) x I Phase angle ± 180° Harmonic distortion 10% from 2nd – 50th Interfering signal: Magnitude 10% of fundamental signal Minimum frequency 0.1 x f Maximum frequency 1000 Hz Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 91 Critical impulse time 10 ms typically at 0 to 2 x I Impulse margin time 15 ms typically Operate frequency, directional 38-83 Hz overcurrent Operate frequency, non-directional 10-90 Hz overcurrent Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 93 10 ms typically at 0 to 2 x I Impulse margin time 15 ms typically *Note: Operate time and reset time are only valid if harmonic blocking is turned off for a step. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 94 Max. = 35 ms Critical impulse time 10 ms typically at 0 to 2 x I Impulse margin time 15 ms typically Transient overreach <10% at τ = 100 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 95 See Table 211, Table and Table Table and Table Relay characteristic angle (RCADir) (-179 to 180) degrees ±2.0 degrees Relay operate angle (ROADir) (0 to 90) degrees ±2.0 degrees Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 96 (0.000-60.000) s ±0.2% or ±15 ms whichever is greater Minimum trip pulse duration (0.010-60.000) s ±0.2% or ±5 ms whichever is greater * Valid for product version 2.2.3 or later Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 97 Independent time delay to operate for Step 1 (0.01-6000.00) s ±0.2% or ±40 ms whichever is greater and Step 2 at 2 x S to 0.5 x S and k=0.000 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 98 Start time at current change from I to 0 Min. = 80 ms Max. = 95 ms Reset time at current change from 0 to I Min. = 5 ms Max. = 20 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 100 10 ms typically at 0 to 2 x I Impulse margin time 15 ms typically Undervoltage: Critical impulse time 10ms typically at 2 x U to 0 Impulse margin time 15 ms typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 101 "tCircIN" at 0 to 2 x I Drop off time delay to de-activate circulating Fixed 0.5 s ±0.2% or ±25 ms whichever is greater current detection at 2 x I to 0 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 102 Reset time, start at 0 to 1.2 x U Min. = 15 ms Max. = 35 ms Critical impulse time 5 ms typically at 1.2 x U to 0 Impulse margin time 15 ms typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 103 Reset time, start at 1.2 x U to 0 Min. = 5 ms Max. = 25 ms Critical impulse time 10 ms typically at 0 to 2 x U Impulse margin time 15 ms typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 104 ±1.0% or ±45 ms, whichever is greater function Maximum time delay for inverse (0.00–9000.00) s ±1.0% or ±45 ms, whichever is greater function Alarm time delay (0.00–9000.00) ±1.0% or ±45 ms, whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 105 0.8 x UDAlarm to 1.2 x UDAlarm Independent time delay for voltage differential (0.000–60.000)s ±0.2% or ±40 ms whichever is greater trip at 0.8 x UDTrip to 1.2 x UDTrip Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 106 Max. = 30 ms Independent time delay to operate, voltage- (0.000 – 60.000) s ±0.2% or ±40 ms whichever is greater based phase selection at 1.2 x U to 0.8 x Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 107 Note: The stated accuracy is valid for the voltage range 50 V – 250 V secondary. The settings and test conditions are in accordance with IEC 60255-181 standard (section 6.2 – 6.7). Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 108 Note: The stated accuracy is valid for the voltage range 50 V – 250 V secondary. The settings and test conditions are in accordance with IEC 60255-181 standard (section 6.2 – 6.7). Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 109 Max. = 240 ms 1.2, 2.0, 5.0 x Gs Gs: ±3.00, ±6.00 & ±10.00 Min. = 180 ms Hz/s Max. = 300 ms Tested frequency slope: 1.2, 2.0 x Gs Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 110 Note! The stated accuracy is valid for phase-to-earth voltage range from 50 V to 250 V secondary. During testing three phase-to-earth voltages with magnitude of 110/sqrt(3)=63.5 V were always used. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 112 10 ms typically at 2 x I to 0 Impulse margin time 15 ms typically Overvoltage: Critical impulse time 10 ms typically at 0.8 x U to 1.2 x Impulse margin time 15 ms typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 113 Table 80. General current and voltage protection CVGAPC, continued Function Range or value Accuracy Undervoltage: Critical impulse time 10 ms typically at 1.2 x U to 0.8 x Impulse margin time 15 ms typically Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 115 Operate time for changeat Ir to (Ir + 2 x DelI>)at Ir to Instantaneous 1 cycle & Instantaneous 2 cycle mode - (Ir + 5 x DelI>) <20ms RMS & DFT Mag mode - <30ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 116 “PhaseDiff” + 2 degrees to “PhaseDiff” - 2 Max. = 30 ms degrees Operate time for energizing function when voltage jumps from 0 to 90% Min. = 70 ms – of Urated Max. = 90 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 117 (0.000-60.000) s ±0.2% or ±50 ms whichever is greater Maximum wait time for circuit breaker closing before indicating unsuccessful “tUnsucCl” (0.00-6000.00) s ±0.2% or ±45 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 118 Delay time for current reversal (0.000-60.000) s ±0.2% or ±15 ms whichever is greater Coordination time for weak-end (0.000-60.000) s ±0.2% or ±15 ms whichever is greater infeed logic Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 119 Delay time for current reversal (0.000-60.000) s ±0.2% or ±30 ms whichever is greater Coordination time for weak-end (0.000–60.000) s ±0.2% or ±30 ms whichever is greater infeed logic Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 120 Table 98. Carrier receive logic LCCRPTRC Function Range or value Accuracy Operation mode 1 Out Of 2 2 Out Of 2 Independent time delay (0.000-60.000) s ±0.2% or ±35 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 121 Impulse margin time, zero sequence 15 ms typically overvoltage Independent time delay to operate at 0 to (0.000-120.000) s ±0.2% or ±40 ms whichever is greater 1.2 x U Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 122 2 ms typically at 0 to 10 x I Impulse margin time, zero sequence 15 ms typically overcurrent Independent time delay at 0 to 2 x I (0.000-60.000) s ±0.2% or ±35 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 123 10 ms typically at 2 x I to 0 Impulse margin time, undercurrent 10 ms typically Independent time delay to operate at 2 x I (0.000-60.000) s ±0.2% or ±45 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 124 Quantity with cycle time 3 ms 8 ms 100 ms INDCALH GUID-D1179280-1D99-4A66-91AC-B7343DBA9F23 v3 Table 112. Number of AND instances Logic block Quantity with cycle time 3 ms 8 ms 100 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 125 8 ms 100 ms TIMERSET (0.000–90000.000) s ±0.5% ±10 ms GUID-0B07F78C-10BD-4070-AFF0-6EE36454AA03 v2 Table 121. Number of XOR instances Logic block Quantity with cycle time 3 ms 8 ms 100 ms Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 126 3 ms 8 ms 100 ms RSMEMORYQT GUID-341562FB-6149-495B-8A63-200DF16A5590 v1 Table 130. Number of SRMEMORYQT instances Logic block Quantity with cycle time 3 ms 8 ms 100 ms SRMEMORYQT GUID-B6231B97-05ED-40E8-B735-1E1A50FDB85F v1 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 127 Quantity with cycle time 3 ms 8 ms 100 ms BTIGAPC GUID-B45901F4-B163-4696-8220-7F8CAC84D793 v3 Table 136. Number of IB16 instances Function Quantity with cycle time 3 ms 8 ms 100 ms IB16 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 128 Quantity with cycle time 3 ms 8 ms 100 ms INT_REAL Table 144. Number of CONST_INT instances Function Quantity with cycle time 3 ms 8 ms 100 ms CONST_INT Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 129 Quantity with cycle time 3 ms 8 ms 100 ms REALSEL Table 152. Number of STOREINT instances Function Quantity with cycle time 3 ms 8 ms 100 ms STOREINT Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 130 Quantity with cycle time 3 ms 8 ms 100 ms STOREREAL Table 154. Number of DEG_RAD instances Function Quantity with cycle time 3 ms 8 ms 100 ms DEG_RAD Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 132 Min current of transducer to (-20.00 to +20.00) mA input Alarm level for input (-20.00 to +20.00) mA Warning level for input (-20.00 to +20.00) mA Alarm hysteresis for input (0.0-20.0) mA Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 133 Reset time delay for temperature alarm (0.000-60.000) s ±0.2% or ±250 ms whichever is greater Time delay for temperature lockout (0.000-60.000) s ±0.2% or ±250 ms whichever is greater Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 134 1 ms Accuracy Depending on time synchronizing M13765-1 v6 Table 167. Indications Function Value Buffer capacity Maximum number of indications presented for single disturbance Maximum number of recorded disturbances Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 135 Accuracy Operate current (50-1000)% of IBase ±1.0% of I at I ≤ I ±1.0% of I at I > I Reset ratio > 95% at (50-1000)% of IBase – Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 136 (0.1 - 0.5) X U Distortion (VTHD) Note: - Applied Voltage Fundamental - Applied Voltage Harmonic (of respective harmonics) U - Actual Voltage = RMS (U and U Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 137 Value or range Accuracy Reactive and resistive reach (0.001-1500.000) Ω/phase ±2.0% static accuracy Conditions: Voltage range: (0.1-1.1) x U Current range: (0.5-30) x I Phase selection According to input signals Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 138 Table 179. Function for energy calculation and demand handling ETPMMTR Function Range or value Accuracy Energy metering kWh Export/Import, kvarh Export/Import Input from CVMMXN. No extra error at steady load Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 139 300, 1200, 2400, 4800, 9600, 19200 or 38400 Bd Slave number 1 to 899 M11921-1 v4 Table 184. IEC 60870-5-103 communication protocol Function Value Protocol IEC 60870-5-103 Communication speed 9600, 19200 Bd Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 140 Up to 6 single or 3 redundant or a combination of single and redundant links for communication using any protocol Standard IEEE 802.3u 100BASE-TX Type of cable Cat5e FTP Connector Type RJ45 Communication Speed Fast Ethernet 100 Mbit/s Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 141 GUID-48F45DA2-B92E-4977-B9B8-C2FCE8091624 v1 The recovery time of a link failure on RSTP with the IEDs that are using Galvanic ports is higher than the IEDs with the Optical ports. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 142 Micro D-sub, 15-pole male, 1.27 mm (0.050") pitch Connector, ground selection 2 pole screw terminal Standard CCITT X21 Communication speed 64 kbit/s Insulation 1 kV Maximum cable length 10 m Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 143 Screw compression type 250 V AC 2.5 mm (AWG14) 2 × 1 mm (2 x AWG18) Terminal blocks suitable for ring lug terminals 300 V AC 3 mm (AWG14) Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 144 SFP Optical LC or Galvanic RJ45 Carrier modules supported OEM, LDCM GUID-4876834C-CABB-400B-B84B-215F65D8AF92 v3 Table 201. OEM: Number of Ethernet ports 2 Ethernet Ports Ethernet connection type SFP Optical LC or Galvanic RJ45 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 145 26 db @ 1.6 GHz Antenna cable impedance 50 ohm Lightning protection Must be provided externally Antenna cable connector SMA in receiver end TNC in antenna end Accuracy +/-1μs Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 146 +/-10μs for IRIG-B 00x and +/-100μs for IRIG-B 12x Input impedance 100 k ohm Optical connector: Optical connector IRIG-B Type ST Type of fiber 62.5/125 μm multimode fiber Supported formats IRIG-B 00x Accuracy +/- 1μs Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 147 ANSI Moderately Inverse A=0.0515, B=0.1140, P=0.02, tr=4.85 Long Time Extremely Inverse A=64.07, B=0.250, P=2.0, tr=30 Long Time Very Inverse A=28.55, B=0.712, P=2.0, tr=13.46 Long Time Inverse A=0.086, B=0.185, P=0.02, tr=4.6 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 148 0.236 0.339 EQUATION1137-SMALL V1 EN-US I = I measured RD type logarithmic inverse characteristic æ ö ç × ÷ 1.35 è ø EQUATION1138-SMALL V1 EN-US I = I measured Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 149 ANSI Moderately Inverse A=0.0515, B=0.1140, P=0.02, tr=4.85 Long Time Extremely Inverse A=64.07, B=0.250, P=2.0, tr=30 Long Time Very Inverse A=28.55, B=0.712, P=2.0, tr=13.46 Long Time Inverse A=0.086, B=0.185, P=0.02, tr=4.6 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 150 0.236 0.339 EQUATION1137-SMALL V1 EN-US I = I measured RD type logarithmic inverse characteristic æ ö ç × ÷ 1.35 è ø EQUATION1138-SMALL V1 EN-US I = I measured Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 151 IEC Normal Inverse A=0.14, P=0.02 IEC Very inverse A=13.5, P=1.0 IEC Inverse A=0.14, P=0.02 IEC Extremely inverse A=80.0, P=2.0 IEC Short time inverse A=0.05, P=0.04 IEC Long time inverse A=120, P=1.0 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 152 C = (0.0-1.0) in steps of 0.1 æ ö > ç × ÷ D = (0.000-60.000) in steps of 0.001 è ø > P = (0.000-3.000) in steps of 0.001 EQUATION1439-SMALL V1 EN-US Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 154 C = (0.0-1.0) in steps of 0.1 æ ö > D = (0.000-60.000) in steps of 0.001 ç × ÷ è ø > P = (0.000-3.000) in steps of 0.001 EQUATION1439-SMALL V1 EN-US Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 155: Ordering For Customized Ied
Product REL670* Product version Configuration alternative Line distance protection REL670 ACT configuration Hitachi Power Grids Standard configuration Ordering number Line distance protection REL670 1MRK002812-AG Table 223. Differential protection Position Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 156 Power swing detection, blocking and unblocking ZMBURPSB 1MRK005907-UA Automatic switch onto fault logic, voltage and current based ZCVPSOF 1MRK005908-AA Power swing logic PSLPSCH 1MRK005907-VA PoleSlip/Out-of-step protection PSPPPAM 1MRK005908-CB Out-of-step protection OOSPPAM 1MRK005908-GA Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 157 Table 233. Frequency functions Function Function Ordering no Position Available Selected Notes and rules identification Underfrequency protection SAPTUF 1MRK005914-AC 00-10 Overfrequency protection SAPTOF 1MRK005914-BB Rate-of-change of frequency protection SAPFRC 1MRK005914-CB Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 158 Control functionality for a single bay, max 15 objects (2CB), APC15 1MRK005917-EZ including interlocking Only one type of control functionality can be ordered. Table 242. Scheme communication Position Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 159 This functionality requires accurate time synchronization, therefore either ‘Precision Time Protocol (PTP) Time synch or GTM or IRIG-B will be required. Option RSTP require 2 SFP placed in pairs. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 160 Additional local HMI user dialogue language No additional HMI language HMI language, English US 1MRK002920-UB Selected Additional 2nd languages are continuously being added. Please get in touch with local Hitachi Power Grids sales contact. Table 251. Casing selection Casing Ordering no Selection Notes and rules 1/2 x 19"...
Page 161 3 **) one (1) TRM *) Including a combination of maximum four modules of type BOM or SOM and six modules of type MIM. **) Max 2 SOM possible Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 162 1/2 x 19” rack casing, 1, possible location: P3 one (1) TRM *) Including a combination of maximum four modules of type BOM or SOM and six modules of type MIM. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 163 1MRK000173-GD 24-30 VDC, 50mA, 10+2 output relays IOM 8 inputs, RL 1MRK000173-AE 48-60 VDC, 50mA, 10+2 output relays IOM 8 inputs, RL 1MRK000173-BE 110-125 VDC, 50mA, 10+2 output relays Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 164 SOM must not to be placed in position nearest to NUM: 1/2 case slot P5, 3/4 case 2 TRM slot P7, 1/1 case 2 TRM slot P13, 1/1 case, 1 TRM slot P16. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 165 Always place LDCM modules on the same board to support redundant communication: in P30:5 and P30:6, P31:2 and P31:3 or P32:2 and P32:3. Default if no LDCM is selected Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 166: Ordering For Pre-Configured Ied
Line distance protection, Multi breaker, 1/3 phase tripping 1MRK004812-GG Line distance protection, Single breaker, 1/3 phase tripping, with PMU 1MRK004812-HG ACT configuration Hitachi Power Grids standard configuration Selection for position #2 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 167 HMI language, English US 1MRK002920-UB Selection for position #4 Additional 2nd languages are continuously being added. Please get in touch with local Hitachi Power Grids sales contact. Casing Ordering no Notes and rules 1/2 x 19" rack casing, 1 TRM 1MRK000151-VA 3/4 x 19"...
Page 168 1MRK000030-CA 1/1 x 19”, IEC 1MRK000030-BA Blank front, ANSI symbols 1/2 x 19", ANSI 1MRK000030-AB 3/4 x 19”, ANSI 1MRK000030-CB 1/1 x 19”, ANSI 1MRK000030-BB Selection for position #8 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 169 Only valid if IEC 61850-9-2 Process bus communication is selected. Only for A42/B42/D42 Second TRM only for A42/B42/D42 As a first TRM, only for A41/A42/D42; as a second TRM only for A42/D42 Only for A42/D42 Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 170 1MRK000508-GA RL220, 220-250VDC, 50mA, enhanced pulse counting IOM 8 inputs, RL 1MRK000173-GD 24-30 VDC, 50mA, 10+2 output relays IOM 8 inputs, RL 1MRK000173-AE 48-60 VDC, 50mA, 10+2 output relays Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 171 SOM must not to be placed in position nearest to NUM: 1/2 case slot P5, 3/4 case 2 TRM slot P7, 1/1 case 2 TRM slot P13, 1/1 case, 1 TRM slot P16. Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 172 Max 2 LDCMs can be ordered. Always place LDCM modules on the same board to support redundant communication: P30:5, P30:6, P31:3 or P32:2 and P32:3. Default if no LDCM is selected Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 173: Ordering For Accessories
AK). Please refer to Section Related documents for references to corresponding documents. Single breaker/Single or Three Phase trip with external neutral on current circuits (ordering number RK926 315- AC). Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 174 Installation manual, Commissioning manual, Application manual and Getting started guide), Connectivity packages and LED label template is always included for each IED. Specify additional quantity of IED Connect USB flash drive requested. Quantity: 1MRK 002 290-AE Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 175 1MRK 511 397-UUS Operation manual Quantity: 1MRK 500 127-UEN ANSI Quantity: 1MRK 500 127-UUS Installation manual Quantity: 1MRK 514 026-UEN ANSI Quantity: 1MRK 514 026-UUS Engineering manual Quantity: 1MRK 511 398-UEN Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 176 1MRK 511 399-UEN guideline Connection and Installation 1MRK 513 003-BEN components Test system, COMBITEST 1MRK 512 001-BEN Application guide, 1MRK 505 382-UEN Communication set-up User guide, RIA600 1MRK 511 619-UEN Hitachi Energy © 2017 - 2022 Hitachi Energy. All rights reserved...
Page 178 Hitachi Energy Sweden AB Grid Automation Products SE-721 59 Västerås, Sweden Phone +46 (0) 10 738 00 00 Scan this QR code to visit our website https://hitachienergy.com/protection-control © 2017 - 2022 Hitachi Energy. All rights reserved...

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