Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 192
e neutral with beneficial INDUCTANCE AND COMMUTATION 175 offect upon the operation of tho machine, as will be explainedlater in this chapter. We have already seen in Chapter X how a ring dividedinto two parts acts to cause an alternating current generatedin a coil revolving between the poles of a… … Fig. 190.—Ring-armature type generator. Where a number of coils are connected to a commutator, as inFig. 190, the current not only flows in one direction in theexternal circuit, but also is maintained at a constant value.This will be seen by considering what takes place at thebrushes as the…
Electric machinery
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