What is the acceptable earth resistance for Commissioning
the Transformer?
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I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
How to reduce current flowing in neutral due to unbalanced load conditions in a three phase system.
Explain UPS
what is the problem in manufacturing transformer with 0 degree phase displacement.???why alwasys go for DYn11 or DY5?Whys not DY0 i.e zero degree displacement between primary and secondary side vectors?
3 Answers Bhel, dpdc, Prime Electrical,
What is function of inverter? and who it's operate & what are controlling devices are used?
What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?
why transformer is conneted to dc for polarity test.it doesnt work in dc?
why the air gap is necessary in the transformer core
SMPS (Switch Mode Power Supply) unit is denoted by KW or KVA?
What is the abbreviation of NGT panel
solor panels arrange some angle,panel is flat fitted energy was produced or not why?
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