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Regenerative braking in a Ward-Leonard system is possible because

  • A.the field of the drive motor is reversed during the braking period
  • B.the set contains a chopper that returns the energy to the supply
  • C.the generator can accept power and return it through its driving motor
  • D.the drive motor is connected to a resistor bank during braking

Answer: C

With the generator voltage reduced below the motor's back emf, current reverses and the drive motor generates into the set, which returns the power to the ac supply through its own motor running as a generator. That capability was a large part of the system's appeal.

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