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 304
xind the battery forcoKBtant pressure. 992 HAWKINS ELECTRICITY Differential Boosters.^In this type of booster, a series coilenergized from the inain current, tends to discharge the battery,and a shunt coil, excited from the battery, tends to charge thecells. These two coils are opposed to one… … Fig. 1,201.—Diagram of differential booster system with compensating coil. In operation, thecompensating field coil of the booster opposes the shunt coil and prevents the variation ofthe battery vfoltage disturbing the equilibrium of the system. If the battery pressure belower than normal, it will…
Electrical engineering
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