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Saturday 7 May 2016

Why buchholz relay is used in transformer

Why buchholz relay is used in transformer 



     Oil filled transformers with a conservator may have a gas detector relay (Buchholz relay. )These safety devices detect the buildup of gas inside the transformer due to corona discharge, overheating, or an internal electric arc. On a slow accumulation of gas, or rapid pressure rise, these devices can trip a protective circuit breaker to remove power from the transformer.

1. Explain relay

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