Question

Solution of a 400v dc shunt motor takes 110a and runs at 900 rpm and provides 35 kw of power to a mechanical load i the rated condition. the armature and field resistance of the motor are 0.18ohms and 140 ohm respectively. compare the efficiency of the motor at 500 rpm at rated torque and 1500 rpm at rated power

Answer 1

Sorrrrrrrrry don't know