ISRO Electrical Engineering (EE) 2014 - Question 13

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Under no load condition, the angle between the induced voltage and the supply voltage in synchronous motor is

  • A. zero
  • B. 45°
  • C. 90°
  • D. 180°

Answer: A. zero

Explanation: At no load the rotor and stator fields are almost aligned: torque angle ≈ 0.

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