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 194
at are cut out or open,and the full lines those that are active or closed. 2,848 HAWKINS ELECTRICITY Ques. How may the circuits be arranged with twobatteries and two motors? Ans. For this combination, as shown in figs. 4,102 to 4,104,it is possible to eliminate the resistance coil altogether… … Fig. 4,098.—Diagram of controller connections of a four unit one motor circuit, with constantseries connections for fields and armatures in forward and backward speeds. voltage and power. Accordingly, for the first speed the bat-teries are connected in parallel, and the armatures and wind-ings of…
Electrical engineering
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