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Quick power factor question

Quick power factor question

Quick power factor question

(OP)
Hi Chaps

I know that the power factor in a system is the ratio of KW to KVA but is it also true that the power factor equals the cosine of the angular displacement of voltage to current in a reactive circuit?

Thanks

RE: Quick power factor question

Yes, by definition. But generally referred to as the angle of current referenced to the voltage. Lagging power factor refers to current lagging the voltage.

RE: Quick power factor question

That's true of sinusoidal voltage and current. If there is distortion, kW/kVA can be lower than cos(Ø), where Ø is the angle between the current and the voltage. cos(Ø) is called the displacement power factor. kW/kVA is the total power factor.

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