Doble Engineering Company introduces the PDS100 partial discharge surveyor, a handheld radio frequency interference (RFI) tool that detects partial discharges (PD) in live high voltage (HV) substations. Designed to work as part of a condition based maintenance (CBM) program to keep HV apparatus operating efficiently and maximize unit lifespan, the PDS100 detects PD without the need for outages or special connections. Doble will be showcasing the PDS100 at CIGRE in Paris, France 23-27 August, 2010, Booth 13.
"Identifying PD by testing in live substations is critical to our clients," explains Hans Ove Kristiansen, Doble's product manager for the PDS100. "Finding sources of PD early reduces repair costs and helps extend the life of HV apparatus."
PD is a localised dielectric breakdown of electrical insulation. PD is mainly caused by natural circumstances or by accelerated aging of the HV insulation. If undetected, it can lead to costly repairs and eventually complete electrical breakdown of HV apparatus; thus, testing for PD is an important part of a CBM program for HV apparatus. The PDS100 allows technicians to safely test live HV apparatus, often revealing PD much earlier than scheduled offline diagnostic testing. Entire substations can be surveyed and analyzed. The results are recorded to allow future trending and therefore facilitate an assessment of individual HV apparatus insulation over time.
The PDS100 is manufactured in Europe and available for purchase via Doble's network of sales offices and authorized sales representatives.