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 157
, employed, but the chief difference is theintermittent action of the inductors. In a direct current Gramme ring winding a certain number of coils are always active, while those in the spacebetween the pole pieces are not gen-erating. In this way a practicallysteady pressure is produced by a… … FlC. 1,391.—Engberg alternating current generating set: shown also in cross section in fig.1,387. The set comprises a vertical engine and alternator, direct connected and placedon one base. The lubrication system comprises an oil pump situated in the base of theengine, pumping the oil from an oil…
Electrical engineering
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