Analysis of the Choice of a Serial Reactor in a Parallel Capacitor Device

When there are harmonic sources in a system, a parallel capacitor will enlarge the harmonics, producing harmonic resonance. Since it is an effective strategy to install a suitable reactance rate of reactor into the capacitor to restrain the harmonics, further analysis is necessary on the choice of reactance rate. This article analyzes the relationship between the effective capacity, the ability to suppress the harmonic, the insulation of the parallel capacitor and the series the reactor in capacitor. On this basis, the article studies the deficiency of the existing reactance rate in capacitor and provides more detailed options. Generally it is a very good remedy for harmonic suppression to string a reactor in the capacitor. So, analyzing the reactance rate of the parallel capacitor is very important.