Answer / wareagle

#1 you almost got it right. It should be 144 - 92 = 52
sqrt(52)= 7 KVAR. You should know better.

Answer / krishna.bagavan

for 12mva at 0.8 pf mw= 0.8 x 12 mva
= 9.6
as per p.f.triangle mvar=square root of mw2+mva2
ie. square root of 9.6 x 9.6 + 12 x 12.
= square root of 92.16 + 144
=square root of 236.16
=16 mvar

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