HTF-1

In electrical‑insulation testing and high‑voltage diagnostic settings—such as transformer windings, GIS switchgear or HV cables—accurate partial discharge (PD) detection is often undermined by external electromagnetic interference and broadband noise. The HTF‑1 filter addresses this challenge by isolating the PD signals of interest using a carefully designed band‑pass filter profile (with high‑pass cut‑offs around 40, 80 and 120 kHz and low‑pass segments at about 270, 370, 470 and 570 kHz). HV TECHNOLOGIES+1

Because it also incorporates a switchable pre‑amplifier, the HTF‑1 lets users optimise their measurement chain for the best signal‑to‑noise ratio in harsh field environments. The metal housing makes it rugged enough for site use, and the flexibility of frequency selection makes the unit more versatile than generic filters or fixed‑band units. In practical use, you might deploy the HTF‑1 when commissioning a transformer’s PD monitoring system, or when refurbishing switchgear and needing to verify insulation integrity in the presence of heavy electrical equipment noise. Compared to simpler filters that only address one frequency band or passive components without amplification, this model offers superior control, adaptability and improved measurement reliability. For electrical test engineers, the HTF‑1 reduces erroneous fault indicators, improves coil‑or‑cable life‑cycle insight, and supports more confident decision‑making.