engineering recuitment HAL Management & Design Trainee Mock Test 2023 Electrical Machines Three Phase Induction Motor Power Stages of Induction Motor
A 400 V, 50 Hz, 30 hp, three-phase induction motor is drawing 50A current at 0.8 power factor lagging. The stator and rotor copper losses are 1.5 kW and 900 W respectively. The friction and windage losses are 1050 W and the core losses are 1200 W. The air gap power of the motor will be, nearly
1
15 kW
2
20 kW
3
25 kW
4
30 kW