With L&T’s active harmonic filters, reduce your THD levels to within IEEE/CEA limits. These filters are IGBT-based power converters. This filter injects negative of the harmonic current resulting in practically no harmonic distortion. Phase balancing and power factor correction is also achieved. Features:  30-600 A Active filter in 3 phase 3 wire/4wire Stand-alone & modular units Response time less than 1 ms Easy diagnosis of fault conditions with alarms Easy configuration & parameter monitoring with LCD touch screen HMI