Performance of a Folded-Strip Toroidally Wound Induction Machine

Bogi Bech Jensen, Alan G. Jack, Glynn J. Atkinson, Barrie C. Mecrow

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This paper presents the measured experimental results from a four-pole toroidally wound induction machine, where the stator is constructed as a pre-wound foldable strip. It shows that if the machine is axially restricted in length, the toroidally wound induction machine can have substantially shorter stator end-windings than conventionally wound induction machines, and hence that a toroidally wound induction machine can have lower losses and a higher efficiency. The paper also presents the employed construction method, which emphasizes manufacturability, and highlights the advantages and disadvantages of this method.
Original languageEnglish
JournalI E E E Transactions on Industrial Electronics
Issue number5
Pages (from-to)2217 - 2226
Publication statusPublished - 2011


  • Measurement
  • Toroidal Windings
  • Prototyping
  • Toroidally Wound Machines
  • Windings
  • Induction motors
  • Rotating Machines
  • AC machines

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