Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 298
e Ey, = Eb = 0, Eg = E, and the batteryneither charges nor discharges. With heavy load Ri<^R^yE^>o, Eb has the same direction as E^, and the batterydischarges. With light load R^. < Ri, E^ > o, Eb is opposed to 286 DYNAMO ELECTRIC MACHINERY. Eg, and the battery charges. The appearance… … Fig. 187. rarely called upon to give their rated output. The reversibleboosters should have laminated field-magnet cores in orderto avoid a sluggish behavior. Sparking is liable to occur,unless the armature coils are of low reactance, because ofthe weak fluxing of the iron of the magnetic circuit.…
Electric machinery
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