A 400V, 2 pole, 50 Hz, three-phase induction motor is drawing 60 A at 0.85 PF...

A 400V, 2 pole, 50 Hz, three-phase induction motor is drawing 60 A at 0.85 PF lagging. The stator copper losses are 2 kW, the stator core losses are 1.8 kW and rotor copper losses are 700 W. The friction and windage losses are 600 W, the stray loss 100 W, and rotor core loss 100 W.
Find the following quantities:
a. The air gap power.
b. The developed mechanical power.
c. The output power.
d. The efficiency of the motor.
e. The rotor speed when the slip is 2 %. Sketch the power flow diagram and enter all data.

Expert Solution

Manojponduru answered 2 years ago

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