mainly bucholz relay which having important role for
protection system.after auxilary relay for oil andwinding
temprature alaram and tripping protection
over current relay for phase to phase protection after E/F
relay and master trip relay provided in oil filled
transformer protectin.
What is mean by PID controller? And what is its Long form?
Answer
pid means proportional integral derivative its use for
control system for for o/p feedbak should be minimize and
looping the i/p and o/p by using PID controller
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