bhavini k


{ City } surat
< Country > india
* Profession * engineer
User No # 38073
Total Questions Posted # 0
Total Answers Posted # 4

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Questions / { bhavini k }
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Answers / { bhavini k }

Question { BSNL, 61118 }

what type of relays used in transformers?


Answer

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.

Is This Answer Correct ?    7 Yes 0 No

Question { Siemens, 180555 }

what is the difference between LT and HT power supply?


Answer

LT MEANS LOW TENSION <415V
HT MEANS HIGH TENSION >415V

Is This Answer Correct ?    140 Yes 90 No


Question { Jindal, 28315 }

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

Is This Answer Correct ?    25 Yes 2 No

Question { 4621 }

what is the use of buchzloys relay?


Answer

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

Is This Answer Correct ?    4 Yes 0 No