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 288
ity of the synchronous motor may be statedin another way, namely, when the load on the motor is fixed invalue there is a certain value of B {certain degree of field excitationof machine B) for which the current I is a minimum and forwhich the RJ- loss is a minimum, generator voltage A being fixed… … 400 600 800values of B in volts Fig. 202. fore the field excitation of a synchronous motor should alwaysbe adjusted (a different adjustment is necessary for each motorload) to give minimum /. A clear idea of the change which takes place in the current in-take of a synchronous motor at given load…
Dynamos · Electric motors
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