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what is power factor? how can we correction the power factor
if this is high or low? If anyone know please please send
the answer on my email id ( kumarkirshan@in.com )
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Answer Posted / madhu sudhan
p.f is defined as the cosine of the angle between voltage
and current in an ac ckt.
it may also be defined as the ratio between the active
power and apparent power.
It also can be defined as the ratio of resistance to the
total impedence inthe ckt.
it is very impartant to correct the p.f as it plays an
impartant role power systems.There are differnt methods
available for p.f correction.THE P.F VARIATION OCCUR MAINLY
DEPENDING UPON THE TYPE OF LOAD,BECAUSE THE REACTIVE POWER
VARIES WITH THE TYPE OF LOAD.
For inductive loads the reactive power consumption is more
and the p.f decreases with the increase in load,hence
inorder to improve p.f a capacitor should be shunted as it
generates the required reactive power,we also have
different equipment like synchronous condensers etc.
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