Power factor correction calculator
Work out the capacitor power needed to improve your installation’s power factor (cos φ), cut the bill and avoid utility penalties. Enter the active power (kW), the present cos φ and the target cos φ.
- Capacitor power
- 55.32 kVAR
Indicative result: always verify against the standards and the installation method on site.
Formula
Qc = P × (tan φ₁ − tan φ₂)
Good to know
- Common target: cos φ ≥ 0.9 to 0.95 to avoid reactive-energy penalties.
- Above a few tens of kVAR, use an automatic stepped bank.