Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 222
chester type in which the cores are connected at the ends by two yokes—so named from its original place of manufacture at Manchester, England. 202 HAWKINS ELECTRICITY Multi-Polar Field Magnets.—In the multi-polar machine,the subdivision of the magnetic flux reduces the amount ofmaterial of both… … Fig. 204.—Modern dynamo with four consequent pole field magnets. In this constructionthe ring shaped yoke also serves as a frame; the circular form of yoke gives the least chancefor magnetic leakage. There may be four, six, eight, or more poles, arranged in alternateorder around the armature. Fig.…
Electrical engineering
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