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Beyond I2R – additional copper losses in stator windings

Publication date: 
July 2019
Mike Howell, EASA Technical Support Specialist
Type of media: 

The March 2013 Currents article titled “Stator I2R loss: considerations for rewinds and redesigns” describes the stator I2R loss, its calculation and how to control it during rewinds. This follow up will provide a brief review and then explore the additional stator copper losses mentioned in that article.

This article discusses:

  • Stator I2R losses
  • Additional stator copper losses
  • Strand eddy current loss
  • Circulating current loss
  • An example of managing additional losses
  • Practical takeaways for the service center
Winding connections