Advantages and disadvantages of VFD

VFD stands for variable frequency drive, it can be used in the AC motors in a highly controlled way. VFD is a precise speed control so that the motor speeds can be a ramp up and ramp down. This article gives information about the pros and cons of variable frequency drive to better understand of this topic. 

Benefits or advantages of variable frequency drive:

  • It is better to process control.
  • VFD is of greater efficiency.
  • It is a smooth start and stops.
  • It is noise reduction.
  • It is reduced motor heating.
  • VFD has less cost.
  • It controls speed.
  • It reduced harmonics.
  • It increases the power factor.
  • It is a smooth acceleration and deceleration time.
  • It provides communication features.
  • FWD and reversion options also are provided.
  • Variable acceleration-deceleration options and many more depending on the application.

Drawback or disadvantages of variable frequency drive:

  • Some harmonics distortion.
  • Electromagnetic interference.
  • Inrush current.
  • Limited motor lead length.
  • Cable failures.
  • Motor bearing failures.
  • High voltage spikes.
  • Corona discharge.
  • It is a standing wave.
  • It is transients.


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We hope that you have got a better understanding of this concept. Furthermore, any quires regarding this concept or some electrical and electronics projects give your feedback in the comment section below. 

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