Three-phase AC induction motors are designed to operate on three separate electric currents, which provide smoother, more efficient power delivery than single-phase motors.

How to use constants that apply to specific single- and 3-phase voltages to calculate current (I) and kilowatts (kW).

Industry generally runs on three-phase AC systems, mainly because three-phase electric motors are so much more efficient and compact than the equivalent single-phase motor.