Is it possible to power factor more than unity?
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Answer Posted / rakesh
no, power factor can never be more than unity.
power factor is the ratio of real power delivered to the
apparent power.
=> pf = P/|S|
where P = real power,
s = complex power. s= sqrt(p^2 + q^2)
this means at most p can be equal to |s| if Q
i.e reactive power is zero.
so at most power factor can be unity.
real power (p)= v*i*cos(angle)
and apparent power = v*i
and that's why pf comes cos(angle).
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