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 36
tacts as with commutator motors,there can be nc sparks during operation—a feature which adaptsthe motor for use in places where fire hazards are prominent. The mctor consists, as already mentioned, simply of two parts:an armature and field magnets, without any electrical connectionbetween these… … Fig. 1,655.—Method of obtaining resultant flux of Teslas rotating magnetic field. Theeight small diagrams here seen show the two components and resultant for eightequivalent successive instants of time during one cycle. At 1, the vertical flux is at+ maximum and the horizontal is zero. At 2, the…
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