Automatic power factor control panel offered as part of HT Harmonic Systems is meant for improving power factor simply by switching on and off capacitor bank mechanically when needed. Suitable for indoor as well as for outdoor application purpose, this range of APFC panel has modular structure so that it can be assembled or transferred easily. Harmonic filter bank offered as part of HT Harmonic Systems has also been designed for improving power factor. Quick to install, this harmonic filter bank can resist electrical shock. This filter bank is used for medium as well as for high voltage power transmission system.