Active and passive harmonic filters

In electrical power networks, ranging from the industrial electricity network through to office buildings, system perturbation occur when operating electrical and electronic loads. We refer to network perturbation when the original “clean” sinus shapes of the voltage or current changes. 

Network perturbation cause additional costs and should be limited.Janitza® offers various approaches to solutions which limit harmonic currents and therefore improve power quality. The solutions range from passive harmonic filters and de-tuned PFC systems through to state-of-the-art power electronics in active harmonic filters. 

Investments in harmonic filters generally pay off within 6-24 months. This means that kWh losses are reduced, reactive power costs are decreased, the lifespan of electrical instruments is lengthened and production processes are stabilised...