Active Harmonic Filters

ELITE offers Active harmonic filters. Active harmonic Filter is a state of the art harmonic filter and the preferred choice of customers across variety of industries to solve their harmonic problems to avoid penalties and to improve performance of their electrical system. In cases where the preventive action presented above is insufficient, it is necessary to equip the installation with filtering systems.

Operating Principle

These systems, comprising power electronics and installed in series or parallel with the non-linear load, compensate the harmonic current or voltage drawn by the load. Parallel-connected active harmonic conditioner (AHC) compensating the harmonic current (Ihar = -Iact). The AHC injects in opposite phase the harmonics drawn by the non-linear load, such that the line current Is remains sinusoidal.

• Commercial installations with a set of non-linear loads representing less
  than 500 KVA (variable-speed drives, UPSs, office equipment, etc.)
• Installations where current distortion must be reduced to avoid overloads.