Answer / sagar upadhyay

If the load is purely reactive, then there is no need to find
out real power since it will be zero. But if there is some
resistance in the circuit, real power tells us the loss in
the resistor.
Reactive power is used to measure the power factor of the
circuit. since, higher the pf, higher will be the power
quality of the circuit. We always try to reduce the reacive
power keeping apparent power constant & in this way pf is
improved.

Why do we perform an open-circuit test and short-circuit test on the transformer?

0 Answers  

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I want to know that a 160kva diesel generator contains capacity of 160kva on each phase like R=160 Y=160 B=160 total RYB=480kva or it is total capacity of all there phases like RYB=160kva ... thanks in advance ...

2 Answers   jlpl, JP Saraswat Engineers,

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I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016

1 Answers   ONGC,

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in transformer the unit of power is in kva why?

4 Answers   Videocon,

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Differene between KVA and KW.

6 Answers   Bharti,

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what is IP55,IP65

2 Answers  

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what is high - pot test. what's its use?????

0 Answers  

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how can we calculate the cooper armed cable size if the protection load of main fuse is 80 ampere.

1 Answers  

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Why 60Hz frequency is used in America what are all the benifits?

5 Answers  

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What are the special cables required for explosion proof wiring?

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How to calculate the Sizes of the cable required for one specific load? Is there any formula for that? ( EX: For 400KW load,50mtr Length, What is the LT cable Size required?)

2 Answers   Texmo,

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what is the purpose of shading ring or shading coil in electrical equipments.

0 Answers   BARC,

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