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 214
5 ::-.~-~s OVC\9FACEV^ PLATE ,., … RE 5WKE PRIMARY COILS FlG. 2,432.—Diagram showing connections of tl Variable Ratio Transformer Voltage Regulators.—The principle of operation of this class of regulator is virtually thesame as that of the induction type regulator; that is to sav,both consist of regulating transformers, but in the…
Electrical engineering
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