Single-Phase Power Calculator
Real power accounts for power factor; apparent power is simply volts × amps.
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Formula
- P = V × I × PF
- S = V × I
Example calculation
240 V × 15 A × 0.9 PF = 3,240 W (3,600 VA).
Practical HVAC use
Estimate equipment input power from amp-clamp readings.
Common mistakes
- Assuming PF = 1 for motors.
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