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- · New York, T. Audel · leaf 226
nes. HA WKIXS ELECTRICITY Ques. For what service is the synchronous booster method desirable? For any application where a rela ide variation in direct current voltage is necess It is particularly desirable for serving incandescent lighting systems -.:~7-j . --•:. tj. .■;- -.- .-.i.;-; vi.r.3.:: r.… … . Motor Generator Sets.—The ordinary rotary converter isthe most economical machine for converting alternating currinto direct currents, and where slight variations in direct current voltage is necessary, they are mostly used on accountof their high efficiency, and because they are compact.…
Electrical engineering
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