Medi 3 Phase APFC and active harmonic filter

AHF (Active Harmonic Filter) and APFC (Active Power Factor Correction) are used to correct issues caused by non-linear loads.
Non-linear load like AC-to-DC converter, SCR phase control etc will have high harmonic current resulting low power factor and very high neutral current as well as high line current. Using active harmonic filter / active power factor correction these currents can be reduced considerably.