Induction Motor and Reactive Power

Does the stator of the Induction machine consume only reactive power? If this is the case, so where does the active power in the rotor come from? Explain.

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buntysurat

  • Nov 13th, 2009
 

When the stator of an Induction Motor is energized, a rotating magnetic field across stator periphery is setup which creates flux which inturn links with the Rotor windings. This flux creates Voltage across Rotor winding Terminal. As this Rotor winding is shorted current finds the path to flow. So it should be understood that the Voltage and current induced in Rotor circuit generate the required Active power wiz the KW Rating of Motor. 

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rajsekhar240

  • Dec 2nd, 2009
 

The stator does not consumes any active power as it is (except we neglect the stator copper losses) it takes the active power and transfers it to the rotor through magnetic field transformation(means it is first converted in to magnetic energy and then retransformed in to mechanical energy in the rotor).

 

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Nagaraju

  • Apr 28th, 2015
 

what are the effects of motor when reactive power will be low

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