Factors affecting partial discharges in SF/sub 6/ gas impregnated polymer film insulation

Abstract

Partial discharge characteristics have been studied of SF6 gas-inpregnated PFP(polyethy1ene terephthalate) and PP(polypropy1ene) film insulation. Experimental results indicate that it is essential to distinguish partial discharges at the electrode edge from discharges in the gas-filled mid-dielectric void