Abstract: A stator assembly for a polyphase multi-pole dynamo-electric machine of the variety having at least one common neutral wire connections has a plurality of neutral leads terminated and coupled together by a conductor at one end of the stator. An annular insulator adjacent one end of the stator assembly has a plurality of passages through which the neutral leads are routed. An annular conductor has a plurality of heat concentrating termination sites whereat the neutral leads are mechanically and electrically coupled. The neutral leads are assembled to the insulator and conductor from the outer periphery thereof.

Abstract: An improved method of manufacture of a shorted turn copper bar rotor which is amenable to high volume production and which provides a copper-to-copper electrical bond among the conductor bar end turn portions at each end of the rotor core. Once the rotor core laminations have been assembled on the rotor shaft, and the conductor bars have been inserted into the core slots, a cylinder or spool element is positioned in abutment with each axial end of the core to define annular cavities into which the conductor bar end turn portions extend. Each cavity has a continuous opening for permitting access to the end turn portions lying therein, and a molten copper plasma is sprayed into the opening of each cavity, thereby forming a copper-to-copper electrical bond among the end turn portions extending from each end of the core. The ends of the assembly are then shortened as necessary by machining to provide the required current carrying capacity.