Which of the following motors may be operated on DC or single-phase AC supply at approximately the same speed and output?

Which of the following motors may be operated on DC or single-phase AC supply at approximately the same speed and output?

Right Answer is:

Universal motor

SOLUTION

Universal Motor:

  • The motors which can be used with a single-phase AC source, as well as a DC source of supply and voltages, are called Universal Motor.
  • It is basically a single-phase DC series motor.
  • On reversing the polarity of the line terminals of a DC Series Motor, the motor will continue to run in the same direction.
  • A universal motor is a commutation-type motor.
  • The universal motor produces approximately the same speed and output when operated either on a direct or single-phase AC source.
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