A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 160 Nm when the rotor emf makes 120 complete cycles per minute. Calculate the shaft power output. If the mechanical torque lost in friction and that for core-loss is 10 Nm. Neglect friction, windage, stray losses. Compute a.The copper-loss in the rotor windings, b.The input to the motor, and c.The efficiency The total stator loss is given to be 800 W. (Ans. 16.085 kW, a. 712 W, b. 18.602 kW, c. 86.47%)
A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 160 Nm when the rotor emf makes 120 complete cycles per minute. Calculate the shaft power output. If the mechanical torque lost in friction and that for core-loss is 10 Nm. Neglect friction, windage, stray losses. Compute a.The copper-loss in the rotor windings, b.The input to the motor, and c.The efficiency The total stator loss is given to be 800 W. (Ans. 16.085 kW, a. 712 W, b. 18.602 kW, c. 86.47%)
Chapter1: Taking Risks And Making Profits Within The Dynamic Business Environment
Section: Chapter Questions
Problem 1CE
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A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 160 Nm when the rotor emf makes 120 complete cycles per minute. Calculate the shaft power output. If the mechanical torque lost in friction and that for core-loss is 10 Nm. Neglect friction, windage, stray losses. Compute a.The copper-loss in the rotor windings,
b.The input to the motor, and
c.The efficiency The total stator loss is given to be 800 W. (Ans. 16.085 kW, a. 712 W, b. 18.602 kW, c. 86.47%)
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