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 498
e, after leaving the dead section. Electric Locomotives.—Numerous types of electric locomo-tive have been built for a variety of purpose, from yard switching electric railways 2,589 »■ ■ • ■ - - ______^_____ to the hauling of heavy passenger trains at high speedScThey may be classed 1. With respect… … Fig. 3,645.—Westinghouse control resister. This is used to reduce the trolley voltage foroperating the magnet valves. The resistance element is of the slotted ribbon type, and isiron clad to protect it from the weather. 3. With respect to the transmission, as a. Gearless; b. Geared; c. Connecting…
Electrical engineering
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