Question

What is the power factor formula?

Answer 1

1. Power factor is defined as the cosine of the angle between voltage and current.
2. Power factor is the measure of how effectively the incoming power is used in the electrical system.

The power factor formula:

1. The Cosine of the angle between Current and Voltage is called Power Factor. So we can write,

$\mathrm{PF}=\mathrm{cos\theta }=\frac{\mathrm{true}\mathrm{power}}{\mathrm{apparent}\mathrm{power}}$

2. The result is expressed as $kVA$ units. $1kVA=1000voltamps$

3. Power factor expresses the ratio of the true power that is used in a circuit to the apparent power delivered to the circuit.