A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous...

  

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A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous speed of 900 r/min. The motor absorbs 40 kW, and the copper and iron losses in the stator amount to 5 kW and 1 kW, respectively. Calculate the torque developed by the motor. A large 3-phase, 4000 v, 60 Hz squirrel cage induction motor draws a current of 385 A and a total active power of 2344 kW when operating at full-load. The corresponding speed is accurately measured and found to be 709.2 r/min. The stator is connected in wye and the resistance between the 2 stator terminals is 0.100. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate: a. Power factor at full-load b. Active power supplied to the motor c. 'R losses d. Mechanical Power (kW) e. Torque f. Efficiency A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous speed of 900 r/min. The motor absorbs 40 kW, and the copper and iron losses in the stator amount to 5 kW and 1 kW, respectively. Calculate the torque developed by the motor. A large 3-phase, 4000 v, 60 Hz squirrel cage induction motor draws a current of 385 A and a total active power of 2344 kW when operating at full-load. The corresponding speed is accurately measured and found to be 709.2 r/min. The stator is connected in wye and the resistance between the 2 stator terminals is 0.100. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate: a. Power factor at full-load b. Active power supplied to the motor c. 'R losses d. Mechanical Power (kW) e. Torque f. Efficiency