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jason101
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jason101

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17 Sep 2006
Hello:

One of the questions that have come up on one of my electrical exams was " what would make a Wound Rotor Induction motor operate at half speed with the resistance out of the circuit" I am wondering if anyone can help on this.



Another question that came up was, what would cause brushes on a DC motor wear down faster then normal after the commutator was just re-dresses a) brushes too hard cool.gif neutral plane position c) commutator needs under cutting????


If someone can help me twith this it would be great!!
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