Presented by: Tom Sandri, Shermco Industries
Partial discharges (PD) are essentially ‘electrical sparks’ that occur in the bulk of medium and high voltage insulation materials. In polymeric-based cable systems (EPR or XLPE cables)
Partial discharges primarily occur along dielectric interfaces and / or impurities in cable accessories, such as cable joints or splices and cable terminations. In rotation machines the partial discharges may be the result of operating stresses, workmanship or process issues.
In this training session we will review online partial discharge measurement practices and measuring sensors along with exploring the procedure for conducting offline PD testing and analysis in accordance with both IEEE and IEC recommended practices.