KSHFC high-voltage power filter device is a device that can filter system harmonics and compensate system inductive reactive power. Each capacitor branch is connected in the form of a series single-tuned filter or a second-order high-pass filter. Filter out the harmonic components of this order (or above), thereby improving the voltage and current waveforms of the system and reducing the distortion rate. It is a means of reactive power compensation and harmonic control frequently used in power users.