The AC Induction Electric motor (ACIM), sometimes called a squirrel cage motor, is one of the most popular motors used in consumer and industrial applications. Induction devices are by significantly the largest group of all commercial electrical machines, converting approximately 70-80% of all electrical energy into mechanical type. The have a very robust rotor construction, which makes them ideal for high-speed applications. With appropriate design, they have good overloading and field weakening features.
The ACIM is made up of a simple cage-like rotor and a stator containing three windings
The changing field made by the AC line current in the stator induces a current in the rotor which interacts with the field and causes the rotor to rotate
The rotor does not have any Ac Induction Motora china moving contacts, which eliminates sparking