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 173
ssed voltage. The efficiency of a motor as just stated is the ratio of theoutput to the input; this is equivalent to saying that the efficiency MOTORS 385 of a motor is equal to the brake horse power divided bythe electrical horse power. The electrical horse power is easily obtained by… … Fig. 432.—Wiring diagram, showing electrical connections between the armature, field, andinterpoles of an interpole motor. As the name implies, an interpole motor has in addi-tion to the main poles, a series of interpoles which are placed between the main poles,and whose function is to assist in…
Electrical engineering
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