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 179
nks of the cores. corners, and the axial length of the pole face and of the armaturecore should not be too great in proportion to the diameter of theworking face. To keep the increase of leakage between no load and full loadfrom undue magnitude, it is required that urc reactions ALTERNATORS 1,167… … Fig. 1,429.—Lincoln revolving field alternator. The frame has openings for ventilation, thefanning action of the pole pieces causing a current of air to pass not only over the end ofthe windings, as is usual with other designs, but also through ventilating slots in thewindings themselves. The…
Electrical engineering
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