Reactive Power Calculator
Sinusoidal steady state with nonnegative real power. Leading Q is negative; lagging Q is positive. Three-phase inputs are balanced RMS line-to-line voltage and line current. PF is undefined at zero load. Excludes harmonics, imbalance and correction equipment sizing.
A QUICK WALKTHROUGH
How to use this tool
- Choose the mode and units.
- Enter the required measured or assumed values.
- Calculate, read every result and save the report.
Scope
Sinusoidal steady state with nonnegative real power. Leading Q is negative; lagging Q is positive. Three-phase inputs are balanced RMS line-to-line voltage and line current. PF is undefined at zero load. Excludes harmonics, imbalance and correction equipment sizing.
GOOD TO KNOW
Common questions
Does this select or rate equipment?
No. The ideal model cannot determine safe ratings or real equipment behavior.