The AC Induction Electric motor (ACIM), sometimes called a squirrel cage motor, is one of the most popular motors found in consumer and industrial applications. Induction machines are by far the biggest group of all industrial electrical machines, converting around 70-80% of all electrical energy into mechanical type. The employ a robust rotor construction, making them ideal for high-speed applications. With proper design, they have good overloading and field weakening features.

The ACIM is made up of a straightforward cage-like rotor and a stator containing three windings

The changing field produced by the AC line current in the stator Ac Induction Motora china induces a current in the rotor which interacts with the field and causes the rotor to rotate

The rotor does not have any moving contacts, which eliminates sparking