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Question: 82 a threephase 60 hz induction motor has the speedtorque...

Question details

8.2 A three-phase, 60 Hz induction motor has the speed-torque characteristic as shown. Also shown is the load characteristic. Determine the following: a) Number of motor poles (8 poles) b) Operating speed (810 RPM) c) slip at maximum torque (25%) d) Motor starting torque (3 N-m) e) Air-gap power at a slip of 1.0 (282.7 N-m) f) Output power at the operating speed, in horse power. (0.34 HP) 6 : Motor Load 2 450 900 RPM

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