Detuned Reactor

When capacitors are used for Power Factor improvement, the transformer inductance and capacitors form a resonant circuit. This circuit can interact with harmonic currents generated by the load, leading to a resonance condition. This results in high currents flowing through branches, overloading the transformer, capacitor bank, and the entire connected electrical system.

Detuned filtering is a reliable method to improve power factor and mitigate resonance risks by shifting the resonance frequency to lower levels, ensuring no harmonic currents exist. Additionally, when detuned reactors are connected in series with capacitors, they form a series resonant circuit with a tuning frequency. This low-impedance path filters system harmonic currents and cleanses the grid of harmonic pollution.