Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 151
nbetweeil them is variable at will. They areof the following three classes:— {a) Compensator potential regulators, in whicha number of turns of one of the coils areadjustable. (6) Induction potential regulators, in whichthe relative positions of the primary andsecondary coils are adjustable. (c)… … Fig. 1.—Elementary Belay induction apparatus used to produce react-ance or phase displacement. Reinforced Concrete.—As used for the construction of line poles, bridges, and inbuildings, and other structures required byelectrical engineers, reinforced concrete con-sists of concrete in which is…
Electrical engineering
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