Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 376
chine isslow. OPERATING ALTERNATORS IN PARALLEL 359 Another type of synehronoscope operating on the sameprinciple is shown diagramniatieally in Fig. 421. The movhigelement consists of two vanes, A and A, on either end of acylindrical iron core in the center of the fixed coil C andfastened to the… … Fig. 421.—Synehronoscope similar to Fig. 420, but with all coils sta-tionary. The vanes are excited alternately positively and negativelyby the alternating field of coil C and are deflected by the fieldsof coils M and N. Coil M has its current in phase with that ofC and deflects the vanes so as to…
Electric machinery
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