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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.
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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.
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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.
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Control If the PSTO input is used, connected to the Local-Remote switch on the local HMI, the choice can also be from the station HMI system, typically Hitachi Energy Microscada through IEC 61850–8–1 communication. The connection example for selection of the manual energizing mode is shown in figure 75. Selected names are just examples but note that the symbol on the local HMI can only show the active position of the virtual selector.
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Setting example when MU is the synchronizing source Settings on the local HMI under Main menu/Configuration/Time/Synchronization/ TIMESYNCHGEN:1/IEC61850-9-2: • HwSyncSrc: set to PPS as generated by the MU (Hitachi Energy MU) • SyncLostMode : set to Block to block protection functions if time synchronization is lost •...
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CHNGLCK input, that logic must be designed so that it cannot permanently issue a logical one to the CHNGLCK input. If such a situation would occur in spite of these precautions, then please contact the local Hitachi Energy representative for remedial action.
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ProductionDate • IEDProdType Figure 199: IED summary This information is very helpful when interacting with Hitachi Energy product support (for example during repair and maintenance). 21.2.2 Factory defined settings M11789-39 v11 The factory defined settings are very useful for identifying a specific version and very helpful in the case of maintenance, repair, interchanging IEDs between different Substation Automation Systems and upgrading.
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So far remanence factors of maximum 80% have been considered when CT requirements have been decided for Hitachi Energy IEDs. Even in the future this level of remanent flux probably will be the maximum level that will be considered when decided the CT requirements.
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VHR type CTs (i.e. with new material) to be used together with Hitachi Energy protection IEDs. However, this may result in unacceptably big CT cores, which can be difficult to manufacture and fit in available space.
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The characteristic of the non remanence type CT (TPZ) is not well defined as far as the phase angle error is concerned. If no explicit recommendation is given for a specific function we therefore recommend contacting Hitachi Energy to confirm that the non remanence type can be used.