A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

Electrical Machines
A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

25 kW.

26.21 kW.

24.11 kW.

23.06 kW.

25 kW.

26.21 kW.

24.11 kW.

23.06 kW.

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Electrical Machines
Hysteresis loss will depends on

f²

f1.6

f

f³

f²

f1.6

f

f³

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Electrical Machines
In DC machine, the armature windings are placed on the rotor because of necessity for

electromechanical energy conversion.

generation of voltage.

commutation.

development of torque.

electromechanical energy conversion.

generation of voltage.

commutation.

development of torque.

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Electrical Machines
In double cage induction motor, the outer cage offers

low resistance and high reactance.

high resistance and low reactance.

low resistance and low reactance.

high resistance and high reactance.

low resistance and high reactance.

high resistance and low reactance.

low resistance and low reactance.

high resistance and high reactance.

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Electrical Machines
No load test on induction motor is conducted to find which of the following losses?

Rotational loss

All of these

Stator copper loss

Stator core loss

Rotational loss

All of these

Stator copper loss

Stator core loss

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Electrical Machines
Which of the following DC generators has rising V-I characteristics?

None of them.

Series.

Shunt.

Compound.

None of them.

Series.

Shunt.

Compound.

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Electrical Machines

Electrical Machines A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

Electrical Machines Hysteresis loss will depends on

Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for

Electrical Machines In double cage induction motor, the outer cage offers

Electrical Machines No load test on induction motor is conducted to find which of the following losses?

Electrical Machines Which of the following DC generators has rising V-I characteristics?

Electrical Machines
A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

Electrical Machines
Hysteresis loss will depends on

Electrical Machines
In DC machine, the armature windings are placed on the rotor because of necessity for

Electrical Machines
In double cage induction motor, the outer cage offers

Electrical Machines
No load test on induction motor is conducted to find which of the following losses?

Electrical Machines
Which of the following DC generators has rising V-I characteristics?