Single Phase Power Equations
Power equations for single phased electrical systems.
Single phase power equations:
Real Power
Wapplied = U I PF / 1000 (1)
where
Wapplied = real power (kilowatts, kW)
U = voltage (volts, V)
I = current (amps, A)
PF = power factor - 0.7 - 0.95
Total Power
W = U I / 1000 (2)
Brake Horsepower
WBHP = U I PF μ / 746 (3)
where
WBHP = brake horsepower (hp)
μ = device efficiency