A wound rotor induction motor differs from a squirrel cage induction motor only
in the construction of its rotor. The rotor, instead of having short-circuited
copper bars, has a definite winding connected for the same number of poles as
the stator with the leads brought out to slip rings. The stator and rotor are
commonly called the primary and secondary, respectively, because under locked
rotor conditions, the motor becomes a transformer with a given ratio. This
ratio depends upon motor design and is not standardized. Frequently called a
slip ring motor. Pit and Quarry
Source:
Dictionary of Mining, Mineral, and Related Terms
