Partial discharge mechanism in a series insulating structure metal-gas gap-solid dielectric

Abstract

The author presents test results on partial discharge (PD) intensity in a metal-gas-gap-solid dielectric arrangement at 101.3 kPa and 50.6 kPa. The test was carried out for AC and step voltages. The measurements reveal that the PD generation process in this arrangement is of streamer-plus-surface-discharge character.<>