Answer / shrirang

when the induction motor is run above the synchronous speed
the induction motor feeds active power in the three phase line

Answer / bosky babu

As the Induction motor works on induction principle. that is if we give supply to the stator a voltage is induced in rotor, as the rotor is short circuited a heavy current is flowing thorough the rotor conductor,thus a torque is developed in it and it starts rotating.
Instead of giving supply to stator, if we given the supply to rotor windings by using carbon brushes, we can get the induced voltage in stator.

what is divercity factor?

4 Answers   ABB,

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what is the difference in using the 125% and the 250% factor of safety in calculating circuit breakers capacity for motors,which is more reliable to use the 125% or 250%??

1 Answers  

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WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 Answers  

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why inductivedrop in dc motor neglected

2 Answers  

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Why heat produce in AC machine higher than DC machine?

2 Answers  

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Refernce currents are to be generated using refernce cueernts how can this be done

0 Answers   ABC, Wipro,

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what will happen when excitation of a synchronous machine is suddenly reduce to zero when it is running at full load..??

7 Answers  

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What is meant by directional power and reverse power relay ?

1 Answers   HAL,

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DC transmission

0 Answers  

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

0 Answers  

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why any inductive load need free wheeling diode?

4 Answers   Essar,

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how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

0 Answers   ME,

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