File:Hawkins Electrical Guide - Figure 293 - Armature core with a few laminations showing effect on eddy currents.jpg

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 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

Upload Notes

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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.

Licensing

	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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