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 37
e winding is progressive. Fig. 272 is given simply to illustrate the definition of aprogressive winding, and not to represent a practical winding. Ques. Does an accident to one winding disable themachine? Ans. No, it simply reduces its current capacity. ARMATURE WINDINGS 249 Ques. Can multiplex… … Fig. 273.—A retrogressive wave winding. // the pitches be such that in tracing the windingthrough as many coils as there are pairs of poles, the first segment of the commutator is notencountered or passed over, the winding is said to be retrogressive. The number of coils toconsider is two, as…
Electrical engineering
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