Patent ID: 8674581
Filing Date: 2014-03-18
Classification: H01R,H02K

Abstract:
1. A system for shorting slip rings of an induction motor, comprising: a shaft in operable communication with a wound rotor induction motor (WRIM) rotor; a plurality of slip rings positioned radially around the shaft and in electrical communication with rotor windings of the WRIM and in selective communication with a plurality of brushes, a plurality of brush shafts corresponding to the plurality of brushes, each brush shaft having a brush holder comprising: a plurality of selectively activating electrical contacts in electrical communication with respective terminals of the rotor windings of the WRIM, wherein the plurality of electrical contacts comprises a plurality of slip ring contacts and a corresponding plurality of contact connectors, wherein each of the plurality of contact connectors is positioned and selectively engages a corresponding one of the plurality of slip ring contacts; and an actuating mechanism in operable communication with at least a portion of the plurality of electrical contacts, wherein, when the actuating mechanism is actuated, at least a portion of the plurality of contact connectors moves in an axial direction defined along the shaft to engage the corresponding plurality of electrical contacts to create electrical shorts between at least a portion of the plurality of slip rings and at least a portion of the rotor windings of the WRIM.