Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 386
Fig. 275. ing windings are both shown in position in Fig. 275, and in Fig.276 the field coils are removed so as to expose the neutralizingwindings to view. The neutralizing windings are placed in slotsin the laminated pole pieces, and the portions aaaa and bbbb. THE SINGLE-PHASE SERIES MOTOR. Z77… … Fig. 276. 184. Prevention of sparking in the single-phase series motor. —A number of undesirable effects are included under the generalterm of sparking, as follows : [a) The effects that are presentedin the direct-current dynamo * and which are due to the necessityof a sudden reversal of the…
Dynamos · Electric motors
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