ISRO Electrical Engineering (EE) 2014 - Question 61

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A pony motor is used for the starting of which of the following motor

  • A. Squirrel cage Induction motor
  • B. Schrage Motor
  • C. Synchronous Motor
  • D. Hysteresis Motor

Answer: C. Synchronous Motor

Explanation: Synchronous motors cannot start on their own due to rotor inertia; a small induction motor (pony motor) is coupled to spin the rotor up to near-synchronous speed before locking into synchronism.

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