Answer / mohd khalid

Active power is that power which is used for useful work
and reative power is used for producing magnetic flux for
rotating electrical machines.Explanation by simple example:-
if we want to go from Delhi to Mumbai by plane. If plane is
flying at 3 kms height (vertical height) it is reactive
power and horizontal distance(from Delhi to Mumbai)it is
called active power or useful power.

Answer / indranil banerjee

Reactive power is that component of power for which we
don't pay any money, but we put our own system to a
pressure.

It is like somebody climbing upstairs and coming down
without doing anything.

Answer / jagadish

what do you mean by 600VA for UPS

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6 Answers  

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Can you explain the phase displacement between primary and secondary of power transformer of any vector group(for ex)?

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why battery is connected in parallel ?

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What is ST and specify its range of voltage.

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why transformer measures in kva

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how to check ac servo motor

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can a 12v dg starting battery(150 AH) be replace by 6 nos of 200AH batteries each of 2v connected in series.

3 Answers  

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