An alternating current (AC) electric motor runs on alternating current whose direction and magnitude change periodically. The most widely used type in industry is the AC asynchronous (induction) motor, which has become standard thanks to its simple construction, durability and low maintenance.

How Does an AC Motor Work?

Alternating current applied to the stator creates a rotating magnetic field. This field induces current in the rotor and turns it. Because the rotor turns slightly slower than the field, these motors are called asynchronous.

Single-Phase and Three-Phase AC Motors

Single-phase AC motors are used in low-power home and workshop applications, while three-phase AC motors serve industrial applications needing high power and efficiency. Three-phase motors need no extra equipment to start.

Applications

Pumps, fans, conveyors, compressors and production machines are driven by AC motors. Efficiency class (IE3–IE5) and speed are chosen by application.

DRG Motor for AC Motors

DRG Motor offers three-phase AC asynchronous motors from 0.55 to 355 kW in different speeds and housing types, with technical support for the right choice.