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 187
l Alternators.—The diameter of the revolvingfields on direct connected alternators of very large sizes becomesso great that considerable fly wheel effect is obtained, althoughthe revolutions be low. By giving liberal thickness to the rim ALTERNATORS 1,175 of the spider, the rotor then answers the… … Fig, 1,437.—General Electric 48 pole 750 kw., three phase fly wheel type alternator. It runsat a speed of 150 revolutions per minute, giving a frequency of 60 cycles per second anda full load pressure of 2,300 volts. The slip rings and leads to the field winding areclearly shown in the figure. The…
Electrical engineering
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