International Library of Technology · Scranton, International Textbook Co. · leaf 354
50. Suppose an ordinary Gramme ring armature tobe revolved in a two-pole field as shown in Fig. 157G; a con-tinuous E. M. F. will be generated anda continuous currentobtained by attaching a circuit to the brushes «, a\ If,instead of the commutator, two collector rings were at-tached to opposite… … Fig. 1576. direct current led in at the brushes a, a\ thus running it asa motor instead of it being driven by a belt. The con-ductors on the revolving armature will be cutting lines offorce just as much as they were when the machine wasdriven by a belt, therefore an alternating current will…
Electrical engineering
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