Answer / lokeshraj

Reactive power
is the imaginary
component of the
total power. It
leads or lags
the active power
by 90 deg. Thus
it does not
produce any o/p
work. It is just
to produce
magnetising
effect in
electrical
machines running
with this.

Answer / kamlesh dewangan

the above two answers are right but u can also understand
reactive power by it's formula:
Q=V*I*sin@
but sin@=X/Z
so Q=V*I*X/z
agian V/Z=I
so Q=I(sqr)X
Since there is no any power loss when current flows through
the pure inductor or capacitor, but the energy is stored in
the form of magnetic field(in inductor) or static field (in
capacitor). So the reactive power is the power used for
magnetizing or is stored in capacitor in the form of static
field.

Answer / ahmed

The role of reactive power is to improve the power factor
of the power system.It is produced by using capacitors
bank ,SVC and sometimes using synchronous condensers.
It is consumed via magentisation (flux)of motors connected
in power system.

Answer / priya

it is used to improve power system operation by controlling
power factor.
It is produced in inductive(lagging) and
capacitive(leading)elements. Reactive Power represents the
power used in changing electric fields or magnetic fields of
circuit components, but is power that is UNAVAILABLE to
perform real work. Apparent Power is the power that the
generating circuit "thinks" it is supplying, but it equals
both reactive power and real power and only real power can
accomplish useful work like turning a motor.

Answer / natchi

reactive power is the product of v*i*sinQ. no useful work is taken from this power. it only stores the energy in the form of magnetic field,

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