kW to VA calculation formula
S(VA) = 1000 × P(kW) / PF
The apparent power S in volt-amps (VA) is equal to 1000, multiplied by the real power P in kilowatts (kW), divided by the power factor PF.
So,
VA = 1000 x kW / PF
volt-amp = 1000 x kilowatt / PF
For example:
Power (P) = 6kW
PF = 0,5
Power (S) = 1000 x 6kW / 0,5 = 12000VA
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