Discussion :: Power Electronics
-
A dc separately excited motor has a constant field current. The armature is fed from a single phase supply through a semi-converter. When a = 0, speed is 600 rpm. If a = 90°, the speed is likely to be
Answer : Option A
Explanation :
Average output voltage is reduced to 50% if a = 90°. Hence speed is also reduced to 50%.
Be The First To Comment