how ceiling fan worked?

0 Answers  

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wath is this mining of bts

1 Answers   Nokia, TATA,

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Why we use cosine angle for calculating power factor not in sine angle ?

4 Answers  

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why we ground the scondary of current transformer.

4 Answers  

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physical identification of HT & LT panel

0 Answers   Schneider,

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while calculating the power absorbed by a resistor connected to the output of a half wave rectifier circuit should we use rms or average current? explain with reason.

1 Answers   Vedanta,

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how we can improve P.F. by using capacitors ?

22 Answers  

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when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.

1 Answers   Birla,

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what you mean by current? what you mean by voltage? what is difference between star and delta connection in motor side?

2 Answers   Adani,

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1.what to do if ferquency of any power system continue to decrease ?

5 Answers   NTPC,

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The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

1 Answers   BSNL,

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what is the kva rating of 20 kv transformer?

1 Answers  

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