why we are testing cables with DC supply not with AC supply?

9 Answers   Aurobindo, DEWA, L&T,

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What is the basic principle of circuit breaker?.. I read that it works on electro-mechanical principle... Does it require both electric n magnetic conversion to act?

3 Answers  

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How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 Answers  

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how much percentage set in transformer diffrencial relay

1 Answers   Bajaj,

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1 Answers   BSNL,

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Difference between hopkinson and swinburne's test

1 Answers  

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why capacitor rating measure in KVAR. ?

2 Answers  

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what is motor

6 Answers   HBL Power Systems,

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where can i get the previous years question papers for APGENCO exam.

0 Answers  

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how to find motor contactor rating and bimetalic relay rating? of 30kw motor which will operate on star-delta starter?

6 Answers   HCC, L&T,

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in transmission line, if the load is suddenly increased at the receiving end of the system the phase shift will (a)decrease (b)becomems zero (c)increase (d)not be affected

4 Answers   Getco,

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What is auto reclose system in Circuit breakers??

4 Answers  

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