What is PIR (pre
inserting resistance)
in 400kv EHV SF6
BREAKER? Why it use?
PIR means Pre insertion resistor... This PIR is connects
parallel to the main interruptor..This is used to limit the
current to be interrupted.
| Is This Answer Correct ? | 12 Yes | 5 No |
how we do Vector group ,magnetic balance and tap changer test in Transformer?
Sir, I m 3rd year student 4m DCE and want to do internship in siemens or l&t or any other mnc related to electrical engineering. please tell me the procedure 4 same and oblige me
IF 3 NOS.OF HEATERS,3KW CAPACITY EACH,1 NO.HEATER CONNECTED IN R PHASE,1 IN Y PHASE AND 1 IN B PHASE.THEIR END POINTS CONNECTED IN STAR.IF I CONNECT THIS STAR POINT TO NEUTRAL OR DO NOT CONNECT TO NEUTRAL.WHAT WILL THE DIFFERENCE.
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It is being often experienced that due to single phasing fault of any source transmission line of any closed loop synchronized circuit all the power transformers with primary stared trips but the power transformer with primary delta wont, why ?
Why Neutral Earthing pits and body earthing is interconnected
what is the power factor of the megnetising component of transformer
why using 3 phase
why the generator operating along with the infinte bus bar should never be under_excited?
the resistance of wire having length X M is R OHEM if i streched the wire to dubble length what will be the resitance
LT cable fault checking instrument is available? where and how to get it.
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