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how to caluculate APFC panel rating, my running Load is
1320KW, Present P.F 0.76 to 0.8 we need 0.98 p.f

Question Posted / deniram anandrao nikhare

Answer Posted / deniram anandrao nikhare

KVAR Required = Operating KW x [Tan (A1) - Tan (A2)]

Where A1 = Inverse Cosine of present power factor
= Cos-1(0.78)
= 38.739
A2 = inverse Cosine of desired power factor
= Cos-1(0.98)
= 11.478
Tan(A1)=Tan(38.739)=0.8022
Tan(A1)=Tan(11.478)=0.2030
Hence,
KVAR Required=1320 x (0.8022-0.2030)
SO KVAR NEEDED TO ATTACHED=790 kVAR

Is This Answer Correct ?    38 Yes 4 No



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