Discussions Populaires Dans la Communauté Appareillage de commutation

What is Bus differential Relay ?‎

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If a Breaker fail happens at any outgoing feeder what should we trip (Incomer & Bus Tie only) or (Incomer , Bus Tie & All the outgoing feeders)? ‎

Please give  me answer with reason why we have trip all the feeder as well as the switchgear will de energize. ‎

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How to check directional earth fault? explain with detail. ‎

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Switchgear or RMU? What are the advantages and disadvantages of the each?‎

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How can we use ct and pt for protection of overhead line? ‎

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What are the alternatives to the use of overload releases?‎

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Will normal overload relays trip on single phasing?‎

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Is hi pot test destructive test shall not be repeated several time? And how much the injection level for the 3 rd time for 33 kv swgr? ‎

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How to explain Transient Voltage Surge Suppressor (TVSS) Working procedure? ‎

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Can installation of Capacitor bank improve output Power utilization? ‎

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