Function of active filter BE-LAF is improvement of voltage quality by filtering the current. The BEL-AF is compensating harmonics upto the 51st order, by balancing the phase current and as well improvement of the power-factor. Because of this the neutral current will be reduced, as well. The BEL-AF would provide a total POWER QUALITY solution for installation who need a reliable and pollution-free electrical system and benefit from near perfect power factor and power quality conditions, at all times.