Power Factor Correction

Sizes shunt capacitor banks to correct an electrical load's power factor to a target value, and reports kVAR, μF per phase (Y and delta), and estimated annual feeder kWh saved. Required columns: tag, voltage_v, phase, load_kw, existing_pf, target_pf.

CSV Input

Frequency (Hz)

Feeder loss (%)

Method: standard power-factor correction relation Q_cap = kW × (tanφ₁ − tanφ₂). Per-phase capacitance from C = Q_phase / (2πf V²). For 3-phase Y-banks V_ph = V_LL/√3; for delta banks V_ph = V_LL. Feeder energy savings approximated as I²R reduction proportional to 1 − (PF₁/PF₂)², applied to the entered feeder loss percent at 8760 hr/yr. References: IEEE Std 1036–2020 (Application of Shunt Power Capacitors), IEEE 141 — Red Book, NEC Article 460.

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