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(Solved): A separately excited dc motor is rated at 200HP,600V at 1200rpm. The total armature resistance is 0. ...



A separately excited dc motor is rated at

200HP,600V

at

1200rpm

. The total armature resistance is 0.24 ohms. When the motor is delivering

75HP

at

1200rpm

its efficiency is 8g96. At the 100 HP output find: a. the motor armature current b. counter emf (Ea) c. torque at the shaft d. an estimate of the mechanical losses



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