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EQUIVALENT THERMAL CONDUCTIVITY OF INSULATING MATERIALS FOR HIGH VOLTAGE BARS IN SLOTS OF ELECTRICAL MACHINES

  • P.G. Pereirinha
  • Carlos Lemos Antunes

Abstract

The equivalent thermal conductivity of insulating materials for a high voltage bar in slots of electrical machines is calculated using the finite element method. This allows the use of much coarser meshes with an equivalent thermal conductivity k e , without accuracy loss in the hot spot temperature calculation. It is shown the dependency of k e value on the equivalent mesh used. Some considerations are also presented on the heat flux finite element calculation.

Keywords

Electrical Machine Coarse Mesh Thermal Source Integration Line Thermal Problem 
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References

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Copyright information

© Springer 2006

Authors and Affiliations

  • P.G. Pereirinha
    • 1
    • 2
  • Carlos Lemos Antunes
    • 1
  1. 1.ISR-Lab. CAD/CAEUniversity of CoimbraCoimbraPortugal
  2. 2.Inst. Sup. Engenharia de Coimbra. Rua Pedro NunesCoimbraPortugal

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