Enhanced Power Quality
What are harmonics and how can they harm my equipment?
Modern power supplies used in most electronic equipment cause distortion in the electrical systems that supplies them power. One form of distortion is known as harmonic distortion. Most of the electronic loads in commercial facilities are designed to control harmonic distortion to acceptable levels, and seldom are found to be a concern. Large concentrations of variable frequency drives or very large computer systems may require special considerations by the design engineer for the facility.