what will happen if we give a dc supply to a transformer.?

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Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency

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what is difference between vaccum circuit breaker and air circuit breaker?

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How does a 3 phase induction motor is started?

3 Answers   IOCL,

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i asked a funny question in Electrical ohms law V=IR in const temp voltage is directly proportional to current Power p=VI cos@ in that formula Voltage is indirectly proportional to current Try to give me the fact what is happening in Electrical.. contact Thanigai_1984@yahoo.co.in

3 Answers  

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Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.

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What is difference between ON delay and OFF Delay Timer?

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what is the path of thunderlightening? once both a buffalo and a person were standing 5m apart but lightening hit and killed buffalo not person?

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What do you mean by eddy current loss?

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If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?

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what is the simple meaning of harmonics?

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why is efficiency of transformer more than that of other rotating machines?

1 Answers  

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