Power QualityElectric power converters generate considerable harmonic currents which itself generate harmonic voltages according to frequency response of the system impedance. The overall presentation of the voltage with respect to the first harmonic can result in a significant voltage distortion. Strong voltage distortions are in turn often the cause of failures or malfunctions in electrical systems. We can help and offer:Calculation, design and construction of medium and high power harmonic filters for circuit feedback treatment.