Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 333
f the revolution anothercycle is generated, the curve in Fig. 349 indicating the com-plete series of values the e.m.f. passes through on a four-pole 316 ELECTRICAL MACHINERY machine, which shows that the conductor in making onerevolution (360 space degrees) generated 720 electrical ortime degrees.… … |< • lAlfernaf/on K—»ZAIfernaflonsH 1 Cycle - 4 AlfernaHons-■■ 2 Cycles — Fig. 349.—Eepresents two cycles of alternating current or voltage. The flow of an alternating current in a circuit is explainedin Figs. 350, 351 and 352. Beginning at A on the time line,Fig. 350, the voltage starts from…
Electric machinery
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