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Danfoss VLT Drives harmonics solutions

Problems caused by harmonics

Excessive harmonic distortion of the mains supply
implies that the source not only carries 50 or 60 Hz frequencies but also components of higher frequencies.
These components of higher frequencies can not be utilized by electrical equipment and adverse effects can be severe and include:

  • Limitations on supply and network utilisation
  • Increased losses
  • Increased transformer, motor and cable heating 
  • Reduced equipment life-time
  • Costly unintended production stops
  • Reducing equipment life-time
  • Control system malfunctions
  • Pulsating and reduced motor torque
  • Audible noise

These problems are not only jeopardizing the reliability and quality of your system, they also cause dangerous situations like short circuits and the danger of fire.