Title :
Effects of partial discharges upon impregnated polypropylene films
Author :
Nemamcha, M. ; Gosse, J.P. ; Gosse, B.
Author_Institution :
Lab. d´´Electrostatique et de Materiaux Dielectriques, CNRS, Grenoble, France
Abstract :
The action of partial discharges on polypropylene films impregnated with benzyltoluene has been studied in a sphere/plane electrode geometry. It is shown that discharges of a small apparent charge (~pC) cause a decrease of the breakdown strength of the film. The addition of an epoxy compound to the liquid significantly reduced the film degradation, despite the increase of the repetition rate and apparent charge of the discharges
Keywords :
polymer films; apparent charge; benzyltoluene; breakdown strength; degradation; epoxy compound; impregnated polypropylene films; partial discharges; repetition rate; sphere/plane electrode geometry; Capacitors; Chemicals; Degradation; Electrodes; Geometry; Helium; Insulation; Partial discharges; Petroleum; Voltage;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids,1993., ICDL '93., IEEE 11th International Conference on
Conference_Location :
Baden-Dattwil
Print_ISBN :
0-7803-0791-7
DOI :
10.1109/ICDL.1993.593987
