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Stator assembly with cascaded winding and method of making same

  • US 7,679,253 B2
  • Filed: 09/29/2006
  • Issued: 03/16/2010
  • Est. Priority Date: 01/24/2002
  • Status: Expired due to Term
First Claim
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1. A stator assembly for a dynamoelectric machine comprising:

  • a stator core having a generally cylindrical shape, and a plurality of circumferentially-spaced radial slots defined in a peripheral surface of the stator core;

    a stator winding including at least one conductor, wherein each of the at least one conductor includes a plurality of slot segments interconnected by a plurality of end loop segments, the slot segments being disposed within the slots of the stator core to define a plurality of concentric winding layers, and the plurality of end loop segments including a first type of end loop segment interconnecting two slot segments disposed in the same layer and a second type of end loop segment interconnecting one slot segment of one layer with one slot segment of a different layer; and

    wherein fewer than 26% of the plurality of end loop segments are the second type of end loop segments.

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