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 353
the two carbons, alter-nating current arc lamps require a focusing mechanism for rindingboth carbons so as to retain the arc in the same place. This may be 2,444 HAWKINS ELECTRICITY accomplished by connecting the lamp to the secondary of a transformerwound to deliver a constant current. The use of… … FUSES FROMALTERNATOR CONSTANT PRESSURETRANSFORMER REGULATOR Fig, 3,356.—The Adams-Bagnall alternating current series circuit arc lighting system, con-sisting of A-B, alternating series lamps with differential control, constant pressuretransformer, regulator, current, fuses, oil switch, plug,…
Electrical engineering
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