The AC Induction Motor (ACIM), sometimes called a squirrel cage motor, is one of the most popular motors used in consumer and industrial applications. Induction machines are by considerably the largest group of all industrial electrical machines, converting around 70-80% of all electricity into mechanical type. The 
have a very robust rotor construction, which makes them suitable for high-speed applications. With proper design, they have great overloading and field weakening characteristics.
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 induces a current in the rotor which interacts with the field and causes the rotor to rotate
The rotor does not have any moving Ac Induction Motora china contacts, which eliminates sparking
