Discussion :: Power Electronics
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A dc series motor is coupled to a load whose torque is proportional to speed. It is fed by a single phase ac supply through a full converter. When speed is 500 rpm, firing angle is 45°. It is desired to raise the speed. It will be necessary to
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A.
decrease the firing angle
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B.
increase the firing angle
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C.
either decrease or increase the firing angle depending on the required speed
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D.
decrease the load torque
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Answer : Option A
Explanation :
No answer description available for this question.
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