Transform Electricals

A D Tuned Reactor is an electrical device used in power systems to filter and limit harmonic currents, particularly in capacitor banks. It is specifically tuned to the 5th harmonic frequency (250 Hz in a 50 Hz system), which is one of the most common and problematic harmonics in industrial networks. By being tuned to this frequency, the reactor prevents resonance conditions and protects both the capacitor and the network from excessive harmonic distortion. D Tuned Reactors are typically installed in series with power capacitors and are essential in improving power quality and extending the life of electrical components.