International Library of Technology · Scranton, International Textbook Co. · leaf 452
core with-out a confusion of lines. Fig. 1168 shows the method of 1984 APPLIED ELECTRICITY. diagrammatically representing drum windings that will beused in this discussion. This winding is the same as thatrepresented in Fig. 1160, it being imagined that the arma-ture and winding is expanded from… … FiG. 1168. cal surface of the core, and the shaded parts represent theportions of the core that are covered by the pole-pieces;that is, they represent the magnetic fields. The commuta-tor and brushes are represented in a similar manner as forthe ring windings. 3141. It will be seen from this…
Electrical engineering
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