Labotek offers Active harmonic filter (AHF) that automatically determines the existence of harmonic currents across the frequency spectrum and creates anti-currents to reduce the harmonics to acceptable levels. The AHF cancels the entire spectrum of damaging harmonic currents at the point of connection. Unlike passive filters, AHFs do not require a pre-study of the circuit's harmonic currents to affect the design of the filter. Typical applications include locations with large amounts of non-linear loads including 6- and 12-pulse variable frequency drives, DC drives, as well as other switch-mode power supply equipment.

Benefits of an Active Harmonic Filter

• Reduced production disturbances.
• Lower carbon dioxide emissions through improved energy efficiency.
• Lower current consumption and increased production stability.
• Increased equipment lifetime.
• Lower operating costs.
• Reduces heat and wear on motors, drives, and other equipment.
• Fast enough to follow today's dynamic loads (response time < 1 ms).
• Automatically adapts to changes in load or installation.
• Reduces current and voltage harmonics.