Answer Posted / krishna nag

using any of the DOL or autotransformer...

sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

2132

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what is the ground fault relay,which purpose it will be use,clearly tell me plz

2011

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how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

2014

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why a tester wont shock while testing the power in house

1792

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what is mean by dry frequency

2403

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Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

2083

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What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

1846

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Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2478

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ult of expression 'document.FrmQF.myem

2012

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what is different between relay and plc?

5516

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we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain

2170

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what are the differant std sizes of cable trenches?

1977

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what do you mean by class PS CT and what are technical details needed for calculating it?

1944

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either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1827

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Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1789

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