Harmonic filter LIFASA

Protection Filters are used on distribution networks which have a high THD (Total harmonic distortion), when the final target is to compensate the power factor at the fundamental frequency.

Its purpose is to avoid overloads due to harmonic currents in the capacitor, deflecting them to the network.

Protection filters are made with serial reactors and capacitors. The tuned frequency of each unit is adjusted between the fundamental and the lower harmonic present in the net, which usually is the 5 th order.

In this way, the filters present high inductive impedance for all the harmonic frequencies.

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