Figure 293 -- Armature coil with a few laminations showing effect on eddy currents
In figure 293, only five laminations or plates are shown, so as to show the subdivision of the eddy currents. In practical armatures, the number of laminations or punchings ranges from 40 to 66 per inch, and brings the eddy current loss down to about one percent.
Public Domain Source
Hawkins Electrical Guide, Volume 1
Chapter 19: Theory of the Armature
Page 273, Figure 293
Copyright 1917 by Theo. Audel & Co.
Printed in the United States
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See Also
For a list of all these illustrations used in Wikipedia please see the article Hawkins Electric Guide on the English Wikipedia.
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=== Illustration Description === Figure 293 -- Armature coil with a few laminations showing effect on eddy currents In figure 293, only five laminations or plates are shown, so as to show the subdivision of the eddy currents. In practical armatures, the
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