Answer / bhavini

bucholz relay is the protection relay for internal fault
occures in oil filled transformers
any gaseous generated due to winding temp. should be high
oil form in gaseous.
there have two floats first 4 alarma nd 2nd for trip
command

Answer / mahesh-lanco

bucholz relay is for the protection of transformers for
incipient faults.

KVAR Kilovolt-Ampere-Reactance

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