An asynchronous electric machine that relies on electromagnetic induction to generate torque, rather than using direct electrical connections to the spinning rotor. The stator creates a rotating magnetic field that induces a current in the rotor windings or bars. Because they have no brushes or commutators to wear out, they are the most common workhorse in industrial environments.
The main cooling pump is driven by a three-phase induction motor that draws a massive inrush current when starting across the line.
Also heard as
- asynchronous motor
Related terms
Squirrel-cage motor
An AC induction motor featuring a rotor made of parallel conductive bars shorted by end rings.
Slip
Shortfall between the speed of an induction motor's rotating field and the actual speed of its rotor.
Synchronous speed
The speed at which the magnetic field rotates in an AC induction motor.