Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 408
s illustrated in Fig. 456.The flux in the A polepieces has become zero, while that inpolepieee B has reached a maximum value, and the center ofthe magnetic field is at the center of the B polepieces. Thiscondition is the same as if bar magnet A, Fig. 455, wasremoved. Then the flux distribution… … Fig. 456 Fig. 457 Fig. 456.—Same as Fig. 452, but 90 degrees later.Fig. 457.—Same as Fig. 452, but 135 degrees later. magnetic field has been caused to shift one-half the width of apolepieee. Returning to the curves A and B, Fig. 451, and consider-ing instant d, it is found that the currents in A…
Electric machinery
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