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 41
g would tend to point vertically ALTERNATING CURRENT MOTORS 1,299 upward towards A. Now suppose that at this instant, corre-sponding to the beginning of an alternating current cycle, asecond current b, differing in phase from the first by 90 degrees,is allowed to enter the ring at C. As shown in… … Fig. 1,660.—Production of rotating magnetic field in a two pole two phase motor. The polesare numbered from 1 to 4 in a clockwise direction. Phase A winding is around poles 1and 3, and phase B winding, around poles 2 and 4. In each case the poles are woundalternately, that is, if 1 be wound…
Electrical engineering
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