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Relion 650 SERIES
650 series
Version 2.2 IEC
Operation manual
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Summary of Contents for Hitachi 650 Series

  • Page 1 Relion 650 SERIES 650 series Version 2.2 IEC Operation manual...
  • Page 3 Document ID: 1MRK500128-UEN Issued: June 2023 Revision: H Product version: 2.2 © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 4 Copyright This document and parts thereof must not be reproduced or copied without written permission from Hitachi Energy, and the contents thereof must not be imparted to a third party, nor used for any unauthorized purpose. The software and hardware described in this document is furnished under a license and may be used or disclosed only in accordance with the terms of such license.
  • Page 5 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.
  • Page 6 Directive 2004/108/EC) and concerning electrical equipment for use within specified voltage limits (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.
  • Page 7: Table Of Contents

    Communication........................29 PCM600 tool........................30 4.4.1 Connectivity packages...................... 30 Section 5 Using the HMI....................33 Using the local HMI......................33 5.1.1 On-screen keyboard......................33 5.1.2 Logging on.........................34 5.1.3 Logging off.........................35 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 8 Using the local HMI for monitoring................53 7.1.3 Recorded data........................53 7.1.3.1 Creating disturbance recordings.................. 54 7.1.3.2 Monitoring disturbance recorder data................54 7.1.3.3 Controlling and reading disturbance recorder data ............. 55 7.1.3.4 Monitoring events......................56 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 9 PG Custom License: LGPL 2.1 with Libtool Exception............80 1.4.1 GNU Libtool release-1-4b....................80 Creative Commons Zero v1.0 Universal................81 1.5.1 SipHash 1.0........................81 CMU License........................83 1.6.1 Net-SNMP 5.9.3........................ 83 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 10 Open LDAP Public License v2.8..................84 1.9.1 OpenLDAP 2.4.46......................84 1.10 OpenSSL Combined License....................85 1.10.1 OpenSSL 1.1.1t.........................85 1.11 Berkeley Public License (BSD 2.0 -)................... 87 1.11.1 vfprintf.c 1.0........................87 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 11: Introduction

    The engineering manual contains instructions on how to engineer the IEDs using the various tools available within the PCM600 software. The manual provides instructions on how to set up a PCM600 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 12: Document Revision History

    2018-03 2.2.1 Document enhancements and corrections 2019-05 2.2.1 PTP enhancements and corrections Document not released 2020-09 2.2.4 Minor document enhancements and corrections Table continues on next page 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 13: Related Documents

    1MRK505394-UEN Type test certificate 1MRK505396-TEN Documents related to REL650 Document numbers Application manual 1MRK506381-UEN Commissioning manual 1MRK506383-UEN Product guide 1MRK506384-BEN Technical manual 1MRK506382-UEN Type test certificate 1MRK506384-TEN 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 14: Document Symbols And Conventions

    The electrical warning icon indicates the presence of a hazard which could result in electrical shock. The warning icon indicates the presence of a hazard which could result in personal injury. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 15: Document Conventions

    • Dimensions are provided both in inches and millimeters. If it is not specifically mentioned then the dimension is in millimeters. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 17: Safety Information

    IED and measuring circuitry may be damaged. GUID-BEDD698E-356C-4CF9-9DAE-64DB3CEADEAD v1 Dangerous voltages can occur on the connectors, even though the auxiliary voltage has been disconnected. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 18: Caution Signs

    Always use a conductive wrist strap connected to protective earth when replacing modules. Electrostatic discharge (ESD) may damage the module and IED circuitry. M2698-2 v2 Take care to avoid electrical shock during installation and commissioning. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 19: Note Signs

    Note signs IP1497-1 v1 M19-2 v3 Observe the maximum allowed continuous current for the different current transformer inputs of the IED. See technical data. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 21: Environmental Aspects

    Metallic plates, parts and screws Steel and aluminum Plastic parts , LCP Unit LHMI display module Various Package Cardboard Attached material Manuals Paper 1) Polycarbonate 2) Liquid crystal polymer 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 23: Overview

    The LHMI of the IED contains the following elements • Keypad • Display (LCD) • LED indicators • Communication port for PCM600 The LHMI is used for setting, monitoring and controlling. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 24: Display

    If text, pictures or other items do not fit in the display, a vertical scroll bar appears on the right. The text in content area is truncated from the beginning if it does not fit in the display horizontally. Truncation is indicated with three dots. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 25 Each function button has a LED indication that can be used as a feedback signal for the function button control action. The LED is connected to the required signal with PCM600. IEC13000281-1-en.vsd GUID-C98D972D-D1D8-4734-B419-161DBC0DC97B V1 EN-US Figure 5: Function button panel 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 26: Leds

    OPENCLOSE_LED function block. For instance, OPENCLOSE_LED can be connected to a circuit breaker to indicate the breaker open/close status on the LEDs. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 27: Keypad

    The keypad also contains programmable push-buttons that can be configured either as menu shortcut or control buttons. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 28 LHMI keypad with object control, navigation and command push-buttons and RJ-45 communication port 1...5 Function button Close Open Escape Left Down Right Enter Remote/Local Uplink LED Not in use Multipage Menu Clear Help 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 29 Changing the active digit of a parameter when entering a new setting value. Right • Activating the authorization procedure, when the user is not logged in. • Logging out, when the user is currently logged in. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 30: Local Hmi Functionality

    DRPRDRE, by connecting a start or trip signal from the actual function to a BxRBDR binary input function block using the PCM600 and configure the setting to Off, Start or Trip for that particular signal. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 31 The 15 programmable three-color LEDs are used for alarm indication. An individual alarm/status signal, connected to any of the LED function blocks, can be assigned to one of the three LED colors when configuring the IED. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 32: Parameter Management

    The yellow LED is not used; it is always off. IEC13000280-1-en.vsd GUID-AACFC753-BFB9-47FE-9512-3C4180731A1B V1 EN-US Figure 9: RJ-45 communication port and green indicator LED 1 RJ-45 connector 2 Green indicator LED 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 33: Single-Line Diagram

    IED, and when creating new users, the predefined roles from Table can be used. At delivery, the IED user has full access as SuperUser until users are created with PCM600. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 34 This time is settable 10 minutes to 60 minutes. The PCM600 caches the login credentials after successful login for 15 minutes. During that time no more login will be necessary. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 35: Communication

    The IED meets the GOOSE performance requirements for tripping applications in transmission substations, as defined by the IEC 61850 standard. Further, the IED supports the sending and 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 36: Pcm600 Tool

    IED. Connectivity packages are used to create configuration structures in PCM600. The latest PCM600 and connectivity packages are backward compatible with older IED versions. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 37 Update Manager is a tool that helps in defining the right connectivity package versions for different system products and tools. Update Manager is included with products that use connectivity packages. Update Manager is a part of PCM600 and is delivered with it. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 39: Using The Hmi

    • To delete a character press or use the Backspace key on the on-screen keyboard. • To clear a whole string press and then 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 40: Logging On

    When the cursor is moved, the newly selected character is shown for a short time. IEC150000 61-2-en.vsdx IEC15000061 V2 EN-US Figure 14: Character selection Type in the password using the on-screen keyboard. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 41: Logging Off

    GUID-0FDDB51B-D1C2-4442-AAE5-865BC39AE253 v1 The user is automatically logged off after the display timeout. The IED returns to a state where only reading is enabled. Manual logoff is also possible. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 42: Turning The Display Backlight On

    To control the IED, log in with the appropriate user rights. 5.1.6 Identifying the device AMU0600422 v9 The IED information includes detailed information about the device, such as revision and serial number. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 43: Adjusting The Display Contrast

    Commit the changes. 5.1.9 Navigating in the menu AMU0600412 v7 Navigate the menus and change the display views on the screen with the keypad. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 44: Menu Structure

    To scroll the view downwards, press • To jump from the last row to the first row, press again. • Press to jump from the first row to the last row. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 45: Changing The Default View

    The panel is also closed after pressing a function button configured for a menu shortcut. The function buttons are configured with PCM600. 5.1.11 Using the single-line diagram GUID-72AC5BD6-D1B5-46D4-83B9-A10870125FCF v7 The single-line diagram is created with PCM600. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 46: Browsing Setting Values

    Edit setting group dialog. Press to select Yes and to view the setting group values. • Press to select No and to exit. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 47: Editing Values

    If the user rights are not sufficient for editing values, the login dialog opens. 5.1.13.1 Editing numerical values AMU0600415 v14 Select Main menu /Settings and then a setting. The last digit of the value is active. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 48 Another press of sets the value to the lower or higher limit. The symbol in front of the value is ↕, when the previous value is shown. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 49: Editing String Values

    Editing can be aborted at any time by pressing or by using the Cancel button on the on- screen keyboard. Press to select the edited string and press to move the cursor. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 50: Editing Enumerated Values

    IED remains in editing mode. All the changes applied to any setting are not lost and the user can continue to change settings. To leave the change setting mode, select No or Yes in the Save changes dialog. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 51: Clearing And Acknowledging

    Scroll the text with if the help text exceeds the display area. To close the help, press The help dialog is also closed when the display timeout expires. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 52 Section 5 1MRK500128-UEN Rev. H Using the HMI IEC13000065-2-en.vsd IEC13000065 V2 EN-US Figure 32: Help menu 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 53: Ied Operation

    Disturbance recordings can also be triggered manually or periodically. The manual trigger generates an instant disturbance report. Use this function to get a snapshot of the monitored signals. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 54: Disturbance Record Analysis

    Non-operative functions, functions that are blocked due to bad or lost data from MU and functions set to a non-operative state by IEC 61850 are listed on the LHMI under Main menu/Test/Function overview. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 55: Ied Parameterization

    IED settings can be designed for various operation conditions by defining different setting values to different setting groups. The active setting group can be changed by the IED application or manually via the LHMI or PCM600. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 57: Operating Procedures

    Clear view and to clear messages. IEC13000237-1-en.vsd GUID-42E5B0A0-789D-4B6F-9615-5B14AD8C1653 V1 EN-US Figure 33: Auto-indication message 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 58: Monitoring Alarm Data

    The flashing green LED indicates an internal IED fault. The fault messages are found in the LHMI menu. Select Main menu /Diagnostics /Internal events or IED status to monitor the latest fault indication. Press to scroll the view. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 59: Measured And Calculated Values

    The IED is provided with intelligent and flexible functionality that collects different kinds of data. The recorded data gives substantial information for post fault analysis. • Disturbance records • Events 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 60: Creating Disturbance Recordings

    Read individual disturbance recordings from the IED with the PCM600 software to monitor disturbance recorder data. Select Main menu /Disturbance records . All disturbance records are listed. Scroll the view with 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 61: Controlling And Reading Disturbance Recorder Data

    7.1.3.3 Controlling and reading disturbance recorder data GUID-E128266D-1DB5-4437-963F-D3DE8FF0FF32 v7 Disturbance recorder data can be controlled and read with PCM600. For more information, see the PCM600 documentation. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 62: Monitoring Events

    Use the PCM600 tool to operate the IED remotely. • Analyze disturbance record data. • Create disturbance records. • Monitor IED values. For more information, see the PCM600 documentation. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 63: Controlling

    Pressing the Clear button activates a view for selecting the reset function. Events and alarms assigned to alarm LEDs can also be cleared with the Clear button. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 64: Changing The Ied Functionality

    The active setting group can be changed manually from the menu or by the PCM600 tool. Select Main menu /Settings /Active setting group /SETGRPS:1 and press 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 65: Browsing And Editing Setting Group Values

    Select the application function category in the list with , and press to see the function blocks in that category. Categories available in the list depend on the configuration configured with PCM600. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 66 The active setting group is marked with an asterisk *. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 67: Activating Leds

    Select an Alarm LED with Press to confirm the selection and to change the Alarm LED mode. Press to change the value and to confirm the selection. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 68 Section 7 1MRK500128-UEN Rev. H Operating procedures For more information, see PCM600 documentation. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 69: Troubleshooting

    Inspect the IED visually. • Inspect the IED visually to find any physical error causes. • If you can find some obvious physical damage, contact Hitachi Power grids for repair or replacement actions. Check whether the error is external or internal. •...
  • Page 70: Checking The Time Synchronization

    The Hint menu is currently only available in English. All the entries are in English, regardless of which language is selected. The supported list of hints are as follows: 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 71 Corresponding hardware(s) is set to fail. Restart IED and consider reconfigure of HW modules in LHMI path: \Main menu\Configuration\Reconfigure HW modules to get the updated hardware list. Table continues on next page 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 72: Indication Messages

    The internal event list is not updated dynamically. The list is updated by leaving the Internal events menu and then selecting 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 73: Warnings

    The current status of the internal fault signals can also be checked via the LHMI in Main menu/Diagnostics /IED status/General . When a fault appears, record the fault indication message and state it when ordering service. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 74: Additional Indications

    8.3.1.1 Changing the password from the LHMI GUID-5A50512E-ECF6-4957-BE57-E11DE253DAAC v1 The password can only be changed for the active user. Press Select Change Password and press to confirm. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 75: Identifying Ied Application Problems

    Due to this, layers of high resistance may appear on the surface of the contacts. Do not determine proper functionality of connectivity or contact resistance by measuring with a regular hand-held ohm meter. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 76 As a result, practically the full voltage is available at the load. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 77: Glossary

    Nations-sponsored standards body within the International Telecommunications Union. CAN carrier module CCVT Capacitive Coupled Voltage Transformer Class C Protection Current Transformer class as per IEEE/ ANSI CMPPS Combined megapulses per second 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 78 Dynamic random access memory Disturbance report handler Digital signal processor Direct transfer trip scheme Ethernet configuration tool EHV network Extra high voltage network Electronic Industries Association Electromagnetic compatibility 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 79 IEC Standard, Instrument transformers – Part 6: Requirements for protective current transformers for transient performance IEC 60870-5-103 Communication standard for protection equipment. A serial master/slave protocol for point-to-point communication IEC 61850 Substation automation communication standard 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 80 Line data communication module Local detection device Light-emitting diode LON network tool Local operating network Miniature circuit breaker Mezzanine carrier module Main processing module MVAL Value of measurement 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 81 A balanced serial interface for the transmission of digital data in point-to- point connections RS485 Serial link according to EIA standard RS485 Real-time clock Remote terminal unit Substation Automation Select-before-operate Switch or push button to close 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 82 Current transformer class according to IEC Transformer Module. This module transforms currents and voltages taken from the process into levels suitable for further signal processing. Type identification 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 83 Three times zero-sequence current.Often referred to as the residual or the earth-fault current Three times the zero sequence voltage. Often referred to as the residual voltage or the neutral point voltage 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 85: Appendix Third Party Copyright Notices

    (412) 268-4387, fax: (412) 268-7395 [email protected] Redistributions of any form whatsoever must retain the following acknowledgment: "This product includes software developed by Computing Services at Carnegie Mellon University (http:// www.cmu.edu/computing/)." 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 86: Gary Mcnickle Md5 C++ Library License

    PG Custom License: LGPL 2.1 with Libtool Exception 1.4.1 GNU Libtool release-1-4b GUID-968E8731-525B-4A97-BA10-B8A1FF2B8693 v1 Copyright (C) 1998-2000 Free Software Foundation, Inc. Originally by Thomas Tanner This file is part of GNU Libtool. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 87: Creative Commons Zero V1.0 Universal

    Copyright and Related Rights. A Work made available under CC0 may be protected by copyright and related or neighboring rights ("Copyright and Related Rights"). Copyright and Related Rights include, but are not limited to, the following: 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 88 4.2. Affirmer offers the Work as-is and makes no representations or warranties of any kind concerning the Work, express, implied, statutory or otherwise, including without limitation warranties of title, merchantability, fitness for a particular purpose, non infringement, or the 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 89: Cmu License

    Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 90: Bsd 3-Clause "New" Or "Revised" License

    Version 2.8, 17 August 2003 ----------------------------- Redistribution and use of this software and associated documentation ("Software"), with or without modification, are permitted provided that the following conditions are met: 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 91: Openssl Combined License

    BSD-style Open Source licenses. In case of any license issues related to OpenSSL please contact [email protected]. OpenSSL License ============= -------------- ==================================================================== Copyright (c) 1998-2008 The OpenSSL Project. All rights reserved. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 92 Copyright remains Eric Young's, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 93: Berkeley Public License (Bsd 2.0 -)

    THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 650 series Operation manual © 2017 - 2023 Hitachi Energy. All rights reserved...
  • Page 96 Hitachi Energy Sweden AB Grid Automation Products SE-721 59 Västerås, Sweden Phone +46 (0) 10 738 00 00 https://hitachienergy.com/protection-control Scan this QR code to visit our website © 2017 - 2023 Hitachi Energy. All rights reserved...

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