Answer Posted / karthikeyan

Active Power is the one which is utilised by the inductive
loads to produce useful torque and work. Reactive power is
the one which is being used to magnetise the Inductive load
and once its job over it will return back to the source.In
this occasion only harmonics are produced with fundamental
sine waves. and there is no useful work done by this
magnetising current so to make use of this wastefull
current we introduce the static capacitors near the
Inductive loads to produce leading reactive power.To
compansate this reactive power one should supply the active
power to equal amount of reactive power to the system.

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