A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?

0 Answers   Spectrum,

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WHAT IS OLTC OF TRANSFORMER? WHERE IS ITS USED EITHER ON PRIMARY OR SECONDARY SIDE OF TRANSFORMER?

2 Answers  

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IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

0 Answers  

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Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers   Bhel,

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Why is starter necessary for a three-phase induction motor?

37 Answers   BMM, Essar, Hero MotoCorp, ITI, Maruti Suzuki, Supertech, Watt,

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generally rectifying of ac tells. ac signel appear at phase and neutral with respect to frequency by -veand +cycles. but we doesn't experience shock with neutral in house hold ac??????.

1 Answers   ETA, RRR, TCS,

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Why material of brush is carbon in motors why not other material.

5 Answers   NTPC,

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When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.

1 Answers   BWSSB,

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who to select a swicth fuse unit......?

2 Answers  

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What do you mean by 4.44 in this transformer equetion E=4.44 nfqm

4 Answers   Bharat Bijlee,

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what is the minimum insulation resistance for HT AND LT motor ?

3 Answers  

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How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

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