Question

A dc separately excited motor is running at 800 rpm driving a load whose torque is constant. Motor armature current is 500a. The armature resistance drop and rotational losses are negligible. The magnetic circuit can be assumed to be liner. Calculate motor speed and armature current if terminal voltage is reduced to 50% and field current is reduced to 80%

Answer 1

Answer:

A dc separately excited motor is running at 800 rpm driving a load whose torque is constant. Motor armature current is 500a. The armature resistance drop and rotational losses are negligible. The magnetic circuit can be assumed to be liner. Calculate motor speed and armature current if terminal voltage is reduced to 50% and field current is reduced to 80%.............Find it!!!!!

Answer 2

Answer:

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