Haefely Hipotronics has launched the new DDX9121b partial discharge (PD) detector. The DDX9121b is modular and fits a wide range of PD detection applications such as single measuring input to nine measuring inputs simultaneously. Traditional partial discharges according IEC60270, RIV measurement, or PD under DC are covered. Pass/fail testing to advance phase resolution time analysis is also possible with the DDX9121b.
The DDX9121b increases laboratory sensitivity, as it is equipped with digital filters allowing the measurement frequency band to be shifted into a less noisy range thus suppressing frequency dependent noise. In addition there are gating possibilities to remove static interferences.