Single Phase Power Equations
Single phase electrical power equations
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Some common single phase power equations can be expressed as
Real Power
Wapplied = U I PF / 1000 (1)
where
Wapplied = real power (Kilowatts)
U = voltage (volts)
I = current (Amps)
PF = power factor - 0.7 - 0.95
Total Power
W = U I / 1000 (2)
Break Horsepower
WBHP = U I PF μ / 746 (3)
where
μ = device efficiency
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