Answer Posted / satya

VCB means Vacum circuit breaker .Its acts as a switchlike fan and light.We use VCB in upto 33KV and 11KV .Its a onload switch and separate two circuit .

Why are the cores of large transformers built up of circular transactions ?

2011

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what is the stear deltaprinceple?

1873

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why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

1947

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what will happen when the dc supply is given to the capacitor?

1517

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for 750 kw LT load what will be the ht kva

1642

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What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

1214

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Define conversion efficiency of a power amplifier.

1232

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What is the polarization index value ? (Pi value)and simple definition of polarization index ?

1202

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2177

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Block diagram of Power line communication?

2301

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Define piezo-electric effect?

1117

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what is the voltages using in movie theaters??? why ??why not other??

2290

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Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

2076

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what is the advantages og idmt relay over magnetic relay??

4237

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Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job

2155

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