Answer / sakthivel

the electrical energy converted in to mechanical energy
apparatus is called electrical machine(vanthni@yahoo.com)

why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 Answers  

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why neutral busbar size is half of the phase busbar size in control panels

1 Answers   IBS,

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In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

0 Answers  

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why conductors of low tensile strength 1)produce greater sag and 2)can not be used for larger spans

1 Answers  

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what is the difference between delta-delta, delta-star transformer???

3 Answers  

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What is the relation between the Peripheral speed(N) , no.of poles(P) and diameter(D) of a cylindrical rotor alternator ?

5 Answers   NTPC,

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what will happen if ac motor given dc supply?

1 Answers  

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

3 Answers  

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what is th basic difference between a d latch time line and a d flip flop time line???

0 Answers  

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how r charge carriers produced

0 Answers  

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Which motor runs on both ac and ac? a) dc series motor b) reluctance motor

2 Answers  

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We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

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