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), 1833-1928 · New York : T. Audel & Co. · leaf 216
gives the bestcontrol ? Ans. The adjustable speed motor having a small percentageof compound winding. The series winding is cut out by the controller at normal speed, butis necessary in starting, insuring a smooth quick start, besides beingof value in the subsequent control of the motor. About 10… … Fig. 4,133.—Diagram of A. B. See No. 4 mechanical controller. Ques. For what service is the squirrel cage inductionmotor suited ? « Ans. It should be used only for slow and constant speedfreight elevators where the impairment of the line regulation,raused by the high starting currents, is not…
Electrical engineering
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