Power factor calculator. Calaculate power factor, apparent power, reactive power and correction capacitor's capacitance.

This calculator is for educational purposes.

The power factor correction capacitor should be connected in parallel to each phase load.

The power factor calculation does not distinguish between leading and lagging power factors.

The power factor correction calculation assumes inductive load.

Power factor calculation:

*PF* = |cos *φ|* = 1000 × *P*_{(kW)} / (*V*_{(V)} × *I*_{(A)})

Apparent power calculation:

*|S*_{(kVA)}| = *V*_{(V)} × *I*_{(A)} / 1000

Reactive power calculation:

*Q*_{(kVAR)} = √(*|S*_{(kVA)}|^{2} - *P*_{(kW)}^{2})

Power factor correction capacitor's capacitance calculation:

*S*_{corrected (kVA)} = *P*_{(kW)} / *PF*_{corrected}

*Q*_{corrected (kVAR)} = √(*S*_{corrected (kVA)}^{2} - *P*_{(kW)}^{2})

*Q*_{c (kVAR)} = *Q*_{(kVAR)} - *Q*_{corrected (kVAR)}

*C*_{(F)} = 1000 × *Q*_{c (kVAR)} / (2π*f*_{(Hz)}×*V*_{(V)}^{2})

For three phase with balanced loads:

Power factor calculation:

*PF* = |cos *φ|* = 1000 × *P*_{(kW)} / (* √*3 ×

Apparent power calculation:

*|S*_{(kVA)}| = * √*3 ×

Reactive power calculation:

*Q*_{(kVAR)} = √(*|S*_{(kVA)}|^{2} - *P*_{(kW)}^{2})

Power factor correction capacitor's capacitance calculation:

*Q*_{c (kVAR)} = *Q*_{(kVAR)} - *Q*_{corrected (kVAR)}

*C*_{(F)} = 1000 × *Q*_{c (kVAR)} / (2π*f*_{(Hz)}×*V*_{L-L(V)}^{2})

Power factor calculation:

*PF* = |cos *φ|* = 1000 × *P*_{(kW)} / (3 × *V*_{L-N(V)} × *I*_{(A)})

Apparent power calculation:

*|S*_{(kVA)}| = 3 × *V*_{L-N(V)} × *I*_{(A)} / 1000

Reactive power calculation:

*Q*_{(kVAR)} = √(*|S*_{(kVA)}|^{2} - *P*_{(kW)}^{2})

Power factor correction capacitor's capacitance calculation:

*Q*_{c (kVAR)} = *Q*_{(kVAR)} - *Q*_{corrected (kVAR)}

*C*_{(F)} = 1000 × *Q*_{c (kVAR)} / (3×2π*f*_{(Hz)}×*V*_{L-N(V)}^{2})