Here is an example of regions in inner bar. Note that the same principles apply to outer bar.

Regions for inner bar
1 Yoke.
2 Tooth.
3 Tooth foot.
4 - 5 Solid conductor for describing the squirrel cage.

2. List of possible elementary regions for an inner bar.

  • Solid conductor, Tooth, Yoke and Tooth foot illustrated above.
  • Ferromagnetic wedge
  • Mechanical device to represent rivet for example
  • Fluid area
  • Hole or Slit
  • Cooling hole