Single Phase Power Equations

Single phase power equations:

Real Power

W_applied = U I PF / 1000                             (1)

where

W_applied = 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

W_BHP = U I PF μ / 746                          (3)

where

W_BHP = brake horsepower (hp)

μ = device efficiency

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Citation

This page can be cited as

• Engineering ToolBox, (2005). Single Phase Power Equations. [online] Available at: https://www.engineeringtoolbox.com/single-phase-electrical-d_887.html [Accessed Day Mo. Year].

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