Two dc shunt machines 200 KW each are tested by Hopkinson's test. The power input would be of the order of
35kw
A dc shunt motor is driving a constant torque load with normal excitation. If the filed current is halved then the motor will run at
A dc shunt motor is driving a mechanical load at rated voltage with normal excitation. If the load torque is increased to double of the normal one, the speed of the motor will