About the Power Factor Correction Calculator Online Free Tool

The Power Factor Correction Calculator Online Free Tool estimates the capacitor bank kVAr needed to move from an existing power factor to a higher target power factor.

How to Use the Power Factor Calculator Online

1. Enter real power in kW.
2. Enter existing and target power factor values.
3. Run the calculator to see required kVAr and before/after reactive power.

Choosing Options Correctly

Use measured site data and do not overcorrect. Harmonics, detuned reactors, switching steps, voltage level, utility rules, and load variation require engineering review.

Common Use Cases

• Estimate capacitor bank size for preliminary planning.
• Compare target power factor scenarios.
• Check reactive power reduction from correction.

Quick FAQ

Can target PF be lower than existing PF?
No. The correction target should be higher than the existing power factor if you are adding capacitive correction.

Is this enough to order a capacitor bank?
No. Verify harmonics, detuning, switching steps, utility requirements, voltage rating, and load variation before procurement.

What happens if the system is over-corrected?
Overcorrection can create leading power factor, resonance risk, voltage issues, and utility penalties.

Does it include harmonic distortion?
No. Harmonic studies or detuned capacitor bank selection should be handled separately for nonlinear loads.