Neptune’s AHF series is a modular Active Harmonic Filter system built with hot-swappable draw-type or fixed-type filter modules and a system controller, housed in standard cabinets with fixed CT terminations. It compensates harmonics from 2nd to 50th order, maintains grid voltage THD below 3%, and supports diesel generator compatibility. Featuring IGBT paralleling technology, intelligent air cooling, and site-expandable capacity, it operates reliably up to 50°C with fast response and low thermal loss.
