Power Factor Correction Capacitor

Required kVAR and capacitance to raise existing PF to target.

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Example

You enter

You get

Details, formula, and sources

kVAR = kW × (tan(acos(pf₁)) − tan(acos(pf₂))); μF from Q = V² × 2π f × C at 60 Hz with three-phase Y per-leg form.

Classical AC theory; IEEE 141 by name.

Principles free at IEEE-USA outreach.

Estimate. AHJ and licensed electrician govern. Verify against the NEC edition adopted in your jurisdiction.

Field names used by the API: kW, pf1, pf2, system_V, phase, kVAR, capacitance_uF

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