Asynchronous electrical machine - has rotor short-circuit ring enclosed on three sides by magnetically conductive ring to reduce switching-in currents

摘要

The machine has an electrically conductive short-circuit ring (2) coupled to the motor conductor rods (1). The short-circuit ring (2) on 3 sides by a further ring (3) of a magnetically conductive material. Pref. the side of the short-circuit ring (2) facing the rotor conductor rods (1) is not enclosed by the further ring (3). ADVANTAGE - Reduced switching-in current amplitude.