Induction motor (asynchronous motor) with pole switching has stator with group(s) of first winding with 2n poles, second with 2m poles on same stator core, m=2kn and k is a natural number

摘要

The device has a rotor (1) with a short circuit rotor winding, a stator with at least one group of a first winding (2a) with 2n poles and a second winding (2b) with 2m poles wound round the same stator core, a first inverter (3) connected to the first winding and a second inverter (4) connected to the second winding, where m=2kn and k is a natural number.