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 53
rives the dynamo, in dragging the armaturearound against these attractions. The stronger the currentinduced in the armature, the greater will be the power necessaryto turn it. THEORY OF THE ARMATURE 265 Ques. Why does this reaction in the armature requiremore power to drive the machine? Ans. The… … Fig. 287.—Actual distortion of field resulting from cross magnetization, as shown by ironfilings. Remedies for FieM Distortion.—Since the distortion ofthe magnetic field of a dynamo causes unsatisfactory operation,numerous attempts have been made to overcome this defect,as for instance, by: 1.…
Electrical engineering
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