Answer Posted / deepak mishra

it basically depends on area of aplication suppose in dc
transmission line we are using cu cable but for same
voltage in ac transmission we require more cross sectional
area as there is skin effect and lossed are more. while in
simple circuit like lighting we can use same cu wire.

what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field

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pls someone send me sample question papers along with the key.thanks in advance

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what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2426

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current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

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which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

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A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

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If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

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why we use circuit breakers for switching instead of normal switching device?

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how to check three phase motor torque value?

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difference between power surge and switching transient

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please explain how to do 'pole drop test' on generator?

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What are the specifications for getting approval of Substation?

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what is lumped and distributed elements?

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What is the different between digital phase converter and ordinary phase converter?

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what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?

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