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AC Power Calculator

Single-phase and three-phase AC power calculator. Solve for current, apparent power (kVA), or real power (kW) using voltage and power factor.

Limitations: Balanced-load arithmetic only. Does not handle harmonics, unbalance, motor starting current, conductor sizing, breaker sizing, or code compliance.

What to do next: Use line-to-line voltage for three-phase systems. If you need wire size, derating, breaker selection, or voltage drop, use a dedicated electrical design workflow.