Answer Posted / chandru

In This case no other detail is given except the power
rating .

Therefore pf=( KW/KVA)
In order to get incentive and good power factor it is
required to maintain power factor above 0.95

So we take pf=0.95 and kw=(65*0.746)=48.49
Therefore KVA= 48.49/0.95 = 51.04

We know that KVAr= Squareroot( (KVA)^2-(KW)^2)


Therefore KVAr = sqrt(51.04^2-48.49^2)

=15.90 approx..


Capacitor required = 16KVAr.

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