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- · New York, T. Audel · leaf 211
tor of the revolving armatare type. In coastxaction provision is made for att-arfcing the Se4d winding CONSTRUCTION OF ALTERXATORS 1.199 mechanically uponthe shaft, but areinsulated from itand from one an-other. The current is in-troduced by meansof brushes as vcommutator. C .-bon brushes are… … Fig. 1.467.— General Electric field coil, showing onemethod of winding. In the smaller machines thewire is wound on spools which are slipped over thepole pieces, which are built of sheet iron, spreading atthe pole face so as to secure not only a wide polar arcfor the proper distribution of the…
Electrical engineering
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