• AB Power System Solution

Detuned Harmonic Filter

AB Power Systems Solution is one of the leading manufacturers and exporters of high performance harmonic filter systems. Detuned filters are used, in supply networks having a high level of harmonic distortion, when the final objective is reactive power compensation at the fundamental frequency. Their purpose is to avoid the harmonic currents overload to the capacitors by diverting them to the mains. Protection filters are made by connecting reactors in series with capacitors, in such a way that the tuning frequency of the whole unit is set at a value between the fundamental frequency and the frequency of the lowest present harmonics, which is usually the 5th order harmonic. In this the filter has high inductive impedance for all the harmonic frequencies.