Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 357
tween zero and maximum.Just what this value is can probably best be explained by avector diagram. In Fig. 394 on the vertical axis 11 lay off OA represent-ing to scale the maximum value of the e.m.f. generated inconductor A. Next draw OB 120 deg. in a clockwise directionfrom OA making OB represent… … A Y ¥^ 0 ■• CV. i^^a ^-__-^B Pig 394 Fig. 39:5 Figs. 393 and ..94.—Illustrate in an elementary way how a three-phase voltage is generated. deg. in a clockwise direction from OB to represent to scale themaximum e.m.f. generated in C. For the reason already setforth, OQ will also equal OA. The…
Electric machinery
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