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 93
cage Li - .gnHir field aijd a ■have, bmust there: i -quern y fluxes p:* ■ - : .^ • ■ --■.-.- * _ rr. :~ . f ,r. • .- ~ . ~ :~ ■ _ r ;: :-:.:= operates pn I be sane •*—**- *s if the magnetic separate -1 -r.r ,.; ::? ie com- ALTERNATING CURRENT MOTORS 1,351 1. The transformer pressure; 2. The… … Fig. 1,872.—Diagram of ring armature in alternating field illustrating the principles of com-mutator motors. For instance, assuming in fig. 1.S72 the armature to be at rest, as thealternating current which energizes the magnets rises and falls in value,the variations of flux which threads through…
Electrical engineering
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