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What is the condition to achieve regenerative braking of induction motor?
  • a)
    Synchronous speed should be increased by a factor of 1.5
  • b)
    Synchronous speed should be a little higher than the rotor speed
  • c)
    Synchronous speed should be a little lower than the rotor speed
  • d)
    Synchronous speed should be doubled
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What is the condition to achieve regenerativebraking of induction moto...
Regenerative Braking:
  • Regenerative braking of an induction motor can only take place if the speed of the motor is greater than its synchronous speed, both rotating in the same direction
  • When the load is reduced then there is a possibility for higher speeds and regenerative breaking.
  • In regenerative braking, induction motor works as an induction generator, and power is fed back to the source
  • This enhances the energy efficiency of the motor and improves the operating power factor the machine
  • The main advantage of regenerative braking is that the generated power is fully used
Regenerative braking is used to control the speed of motor driving loads such as in electric locomotives, elevators, cranes, and hoists
Regenerative braking cannot be used for stopping the motor; It is only used for controlling the speed above the no-load speed of the motor.
Explanation:
The condition to achieve regenerative braking of the induction motor is when the synchronous speed should be a little lower than the rotor speed.
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What is the condition to achieve regenerativebraking of induction motor?a)Synchronous speed should be increased by a factor of 1.5b)Synchronous speed should be a little higher than the rotor speedc)Synchronous speed should be a little lower than the rotor speedd)Synchronous speed should be doubledCorrect answer is option 'C'. Can you explain this answer?
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