engineering recuitment GATE EE 2023-24 Test Series Electrical Machines DC Motor DC Motor Speed Regulation
A 200 V dc generator supplies 4 kW at a terminal voltage of 200 V, the armature resistance being 0.4 Ω. If the machine is now operated as a motor at the same terminal voltage with the same armature current. Assuming that the flux per pole is made to increase by 10% as the operation is changed over from generator to motor, the ratio of generator speed to motor speed is:
Enter numerical value using the virtual keypad. Round off where necessary.