Active harmonic filters, also called harmonic correction units, are parallel devices that act like a noise cancellation system and inject equal and opposite frequencies to mitigate harmonics.The waveform will show a significant amount of harmonic current in the total harmonic distortion.
Active power filters can be used to filter out harmonics in the power system which are significantly below the switching frequency of the filter. The active power filters are used to filter out both higher and lower order harmonics in the power system.
- Active Low Pass Filter.
- Active High Pass Filter.
- Active Band Pass Filter.
- Active Band Stop Filter.
Active harmonic filters respond quickly and effectively to balance out power system variations. This enables higher process reliability, longer equipment life, reduced energy losses and improves productivity. Active harmonic filters provide a quick return on your investment.