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 223
ad current. Accordingly CONVERTERS 1,481 with series inductance, the effect of the series coils on the fieldof the converter is quite similar to that of the compounding ofthe ordinary railway dynamo. Multi-tap Transformer Method.—The employment of avariable ratio step down transformer for voltage… … Fig. 2.062.—Mechanical oscillator and speed limit device of Westinghouse commutating polerotary converter. It automatica :he armature of the converter remaining in one position and thus not allowing brushes to wear grooves in both commutator andcollector rings. The oscillator is a self-contained…
Electrical engineering
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