International Library of Technology · Scranton, International Textbook Co. · leaf 374
o the effectobserved in direct-current machines; but in an alternatorwith coils as shown in the above figures, the effect onthe field is not steady, but varies as the teeth move pastthe poles. The student should note that in this case thearmature is assumed to have no self-induction, and also… … 2748 DESIGN OF ALTERNATING coils sunk in slots. The effect of this self-induction is, ofcourse, to cause the current in the armature to lag behindthe E. M. F. It is necessary, then, to see how this laggingof the current affects the reaction of the armature on thefield. In this case the current in…
Electrical engineering
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