what happens if power factor is maintained at 0.9?give me
the answer in technicall way rather than telling the
penality n all
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Answer Posted / guest
See the first thing is Power factor is angle between
voltage & current. see most of our load is inductive, & in
inductive load current always lags the supply voltage. In
unity P.f.condition current & voltage always in phase with
each other.
since P=VIcos(angle between V & I )
Now for a constant power as your pf changes i.e. decreases
to keep power demand constant current has to be increase as
your voltage is constant.in this way your current
increases , it causes increase in your copper losses
(I*I*R), voltage drop(I*R). And to keep voltage constant
more reactive power has to be provide.
generally any supply company penalties for more demand of
reactive power.
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