Electrical Calculations
AC Power & Power Quality
Estimate power-factor correction and screen three-phase voltage or current unbalance.
Capacitor Bank Capacitance CalculatorEstimate power-factor correction kVAR and capacitance.Fundamental Neutral Current CalculatorPhasor-sum fundamental phase currents for supported split-phase and three-phase wye systems.Harmonic Distortion CalculatorCalculate THD and total RMS from fundamental and harmonic measurements.Power Factor Correction CalculatorEstimate the reactive-power compensation needed to raise a lagging displacement power factor.Three-Phase Voltage Unbalance CalculatorCalculate maximum deviation from average using three measured line-to-line voltages.Three-Phase Current Imbalance CalculatorCalculate average phase current and maximum percent deviation across three readings.AC Impedance and Reactance CalculatorEstimate reactance, impedance magnitude, and phase angle for a simple series RLC circuit.RLC Resonant Frequency CalculatorCalculate ideal LC resonant frequency from inductance and capacitance.