How to calculate power factorr for ac load?

Question

How to calculate power factorr for ac load?

Answer 1

P.F = (Power in watts)/(1.732xVoltagexCurrent)

Answer 2

To calculate power factor use one of the following power formulae :-

Power is in Watts, voltage in Volts & current is in Amps

(Single phase load) Power = Volts x Current x Power factor

Re-arrange the formula

PF = Power divided by ( Volts X Current) = Watts/(Volts x Amps)

(3 phase load) Power = 1.7321 x Line Voltage x Line Current x PF

Re-arrange the formula

PF = Power divided by (1.7321 x VL x IL )

Vl =  line voltage or voltage between phases

IL = line current or current per phase

PF = Watts/(1,7321 x VL x IL)

1.7321 is the square root of 3

With the formula being  Power = root3 x VL x IL x PF

Sorry cannot find the Sqrt symbol