Detuned filtering is a reliable and time-tested method to improve the power factor and also mitigating the risk of resonance; this is achieved by shifting the resonance frequency to lower levels, thereby ensuring that no harmonic currents are present.
The method is simple; by changing the basic LC circuit formed by the transformer and the capacitor banks, by way of introducing a filter reactor in series with the capacitor; this makes the circuit a more complex resonant circuit but with a resonance frequency below the first existing harmonic. In this way a real resonance condition cannot arise. The components for the detuned filter need to be selected very carefully, after a proper harmonic study is conducted.
Our Available Range : 5.67% , 7% , 14% Detuned reactors available in the range from 5 Kvar to 100 Kvar single bank.