Answer Posted / sunil kanusu

if we give dc supply to a ac tf, winding will burn due to
short ckt of secondary wdg, because high current will
produce in the wdg.

what is under coal gassification?

2141

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I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1996

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what is the relative size of single and three phase?

1932

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sugest any typical project ?

1871

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why -48 volts dc used in telecommucation

2747

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Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

2368

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How can we checked Killo Watts of Motor & Alternator?

2206

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why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1896

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hi, could someone help me to find a control design for syncronising panel .

1781

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How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.

1796

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if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

1954

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what is meant by LCR meter? where its useful ?

2108

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In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

2086

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What is the function of probe in cro?

1264

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Mention the methods for starting an induction motor?

1197

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