A shunt-wound motor has a field resistance of 400 Q and an armature resistance of 0.1...
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A shunt-wound motor has a field resistance of 400 Q and an armature resistance of 0.1 O and runs off 240 V supply. The armature current is 60 A and the motor speed is 900 rpm; Assuming a straight line magnetization curve, calculate (a) the additional resistance in the field to increase the speed to 1000 rpm for the same armature current and (b) the speed with the original field current of 200 A. A shunt-wound motor has a field resistance of 400 Q and an armature resistance of 0.1 O and runs off 240 V supply. The armature current is 60 A and the motor speed is 900 rpm; Assuming a straight line magnetization curve, calculate (a) the additional resistance in the field to increase the speed to 1000 rpm for the same armature current and (b) the speed with the original field current of 200 A.
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