When selecting a harmonic mitigator, the first consideration is the actual requirement from the electrical systems. These may include among others, the amount of harmonic distortion, the type of equipment used, and power quality objectives. The action of a harmonic mitigator is to cut out harmonics that are present at the output and which might cause undesirable effects or cause damage to equipment which is delicate and is usually susceptible to such. With well-selected harmonic mitigators a business can not only improve its operational efficiency and reliability but also save on energy expenditure and enhance the longevity of electrical parts and equipment used in the operations.