Answer / er. ankush miglani 9718151073

KVAR= KW(TAN(COS(-1)#e)- TAN(COS(-1)#d) )

#e= EXISTING P.F.
#d= DESIRED P.F.

Answer / shalini.b

capacitor bank value is calculated in KVAR
From Power Triangle,
KVAR = Sin(phi) * KVA

Desired Power factor = 0.96 (say)
cos(phi)=0.96
phi = cos(inv)0.96
phi= 36.86
Sin(phi)= 0.28

If the transformer rating is 1250 KVA (say)
KVAR = 0.28*1250
= 350

Answer / maen drawish

The proper calculation for cap. bank it depends on the
desired & initial/ existing cos-phi.

Answer / skumar

I don't know the correct formula. But in practical we
applying 30% of our full load(i.e transformer capacity).

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