Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 194
MMUTATION 177 and to the positive brush. At the negative brush the currentis flowing from segment c to coil m and down through theplane of the paper. In Fig. 191 the current in coil I is flowingdown through the plane of the paper and to segment e andtlien to the positive brush, and at the negative… … Fig. 192.—Same as Fig. 190; armature coils short-circuited by brushes. that of Fig. 190. In other words, when the armature revolvesthrough an arc equal to the width of a commutator segment,that is, causes one segment to move out from under a brushand another to move in, the current in a coil…
Electric machinery
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