Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 337
, which will deliver a continuous current in theexternal circuit, or, as it is usually called, a direct current. 320 ELECTRICAL MACHINERY It will 1)6 observed from the foregoing that the voltage ofa direct-current machine having the same winding as a single-phase alternating-current machine will… … Fig. 358Figs, nss to 360.- Fig. 359 Fig. 360 -Diagrams of a direct-current generator. the time line and the line BC equals the direct-current voltage.Hence, it is apparent that a given armature winding will gen-erate a smaller effective e.m.f. when connected to two sliprings than when connected to…
Electric machinery
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