A dc separately excited motor has a constant field current. The armatu – InterviewSolution

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1.	A dc separately excited motor has a constant field current. The armature is fed from a single phase supply through a semi-converter. When = 0, speed is 600 rpm. If = 90°, the speed is likely to be
Answer» Average output voltage is reduced to 50% if a = 90°. Hence speed is also reduced to 50%.

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