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 484
L/g/itn/ng/lrrester k/r/c/r/ngCoi/ Aft/ 7r/pp/ng Switch* Afo/n Sw/tchi V Jf Trolley 7ermlnolduxi/fary Contacts^tnController \*^CGontactors … faseBox Fig. 3,581.—Wiring diagram of General Electric contactor equipment, designed to eliminateall destructive arcing form the car platform, by opening and closing the main power circuitwith contactors located underneath the car body. Two of these contactors are connectedin series in the main…
Electrical engineering
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