Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 193
ELECTRICAL MACHIXERY in the neutral zone in Fig. 190. has moved in under the N pole,thus maintaining the same number of active eonduetoi^ underthis pole. The same tiling has happened under the S pole,where coil g, which is under this pole in Fig. 190, has movedout into the neutral zone and coil h… … Fig. 191.—Same jls Fig. 190; armature turned one commutator segment. constant value to flow in an external circuit L of constantresistance. This is the process that is going on all the time inthe armature as long as it is revolved. As fast as one arma-ture coil moves out from under a polepiece.…
Electric machinery
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