principles of dc machines

Magnetic slot wedges are often used to improve starting performance of large induction motors The effects of the wedges on the performance

properly hold in slots against the centrifugal force by wooden or fibre wedge inserted in the upper portion of the slot Slots used in generator are of

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slot steam tower In DC machines, slot wedges are generally made of cotton; fibre; impregnated paper; silicon steel Show Answer Answer: 2 9 Eddy current loss will depends on