Answer Posted / g.v.suresh kumar

BREATHER IS USED TO COOL TRANSFORMER OIL .THIS IS OBTAINED
BY AIR

if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2131

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he compression ratio for a petrol engine generally lies between

709

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what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1494

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how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?

1642

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State kirchoff current law?

662

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If any cable burnt how can we identify it burnt by high current of high voltage? 

2009

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Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.

642

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induction 3 phase motor terminal connection

2058

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what exactly commisioning work does in electrical site work... LT side?..

1502

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How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

1839

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draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

1923

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How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend

1634

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Instrument connected to a single phase supply

1260

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armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

1425

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What are the different types of hydro schemes?

676

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