At present most of manufacturers filter 3rd harmonic by using Angle glaucoma connection capacitor to connect 14.5 reactance, in fact there is only slight effect.
目前大部分厂商采用角型连接电容器串接14.5%电抗器滤除3次谐波，其实作用甚微。
2
But at the harmonic frequency, the system inductance increases greatly and the reactance of the filter circuit reduces greatly.
但对谐波频率而言，系统感抗大幅增加而滤波支路容抗大幅减小。
3
At power frequency, since the capacitive reactance of SVC's filter circuit is much larger than system inductance, the parallel resonant could not happen.