ISRO Electrical Engineering (EE) 2017 - Question 7

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The capacitor start-capacitor run single phase induction motor is operationally a

  • A. Single phase motor
  • B. Two phase motor
  • C. Three phase motor
  • D. A.C. series motor

Answer: B. Two phase motor

Explanation: Under running conditions, the two windings are displaced 90° in space with currents 90° apart in time, causing the motor to operate virtually as a balanced two-phase motor.

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