Answer / sudhakar g

Buchholz relay is used mainly to sense the faults of oil
temperature, winding temperature....if any thing happend for
insulation of winding in transformer it causes the gas in
the t/f then ...it will decrease the oil level in the t/f
.....the buchholz relay sense the condition and give alarm.

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i need bhel question papers.

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Why the transformers are rated in KVA ? in new view

3 Answers  

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