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 258
Fig. 181a. Fig. 181b. Actual and assumed distributions of *, unity power factor. In the polyphase alternator with a balanced load the armature flux 4 is constantin value (for a given value of the armature currents) and fixed in space, and electro-motive forces are induced in the moving armature…
Dynamos · Electric motors
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