Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 375
internal losses of a dynamo. A section of a solid armaturecore is illustrated in Fig. 334, and the direction of the in-duced eddy currents (found by Flemings Rule, ^[ 278),indicated at this particular position of the armature core inthe course of its revolution. The heat produced by thesecurrents… … Fig. 335.—Sheet Iron Armature Core Disc. .015-inch thick. creased, and as a result the C2R loss will be increased. are thus two evil effects of the eddy currents. Eddy current losses may be considerably diminished by building the armature up of a series of thin discs of soft sheet iron or steel,…
Electricity · Magnetism
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