Calculating Motor Amps

Given BHP, Power factor, volts & Efficiency

Calculate the current per phase of :

Single Phase Motor

Amps = (BHP x 746 x 100) / (Volts x Efficiency x Power factor)

3-Phase Motor

Amps = (BHP x 746 x 100) / (Volts x Efficiency x Power factor x 1.73)


Source - MPOB