Role of surface charging in the performance of polymeric high voltage insulation systems

Micro discharges in HVDC gas insulated systems

“…They can reduce the voltage withstand capability and even lead to a breakdown of the insulation system [3]. The most critical parts in SF 6 gas insulated DC equipment are the surface of the insulators interfacing SF 6 and the solid, and triple points [4,5]. In this article, we investigate the effect of charges arising from the gaseous phase on the solid insulator.…”