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 160
it between the dynamo and battery, and whichwill also open the circuit when the battery pressure becomesgreater than that induced in the dynamo. 2,814 HAWKINS ELECTRICITY « ii .. ,i ».»»• — -. — i - - - —, Ques. What requirement is essential in charging abattery? Ans. The voltage of the dynamo must… … Fig. 4,057.—Rushmore ballast coil with cover removed to show the iron wire; illustrationfull size. There are several ways of effecting this regulation: 1. Mechanically; 2. Electrically; 3. Thermally. These several methods are illustrated in the accompanying cuts. An example of mechanical control is…
Electrical engineering
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