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 191
onding demandfor alternators suitable for direct connection to water wheels. Ques. Name two forms of water wheel alternator. Ans. Horizontal and vertical. Examples of horizontal and vertical forms of water wheel alternatorare shown in figs. 1,439 and 1,440. Ques. How should the rotor be designed?… … Fig. 1,441.—Allis-Chalmers revolving field for water wheel alternator. In this type of alter-nator it is essential that the rotating part be designed to have a liberal factor of safetynot only at the ordinary operating speed, but also at speeds much in excess of normal.Frequently machines are…
Electrical engineering
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