Title :
The role of XLPE type on electroluminescence and subsequent electrical treeing
Author :
Kabir, F. ; Braun, J.M. ; Hampton, R.N. ; Verne, S. ; Walton, M. ; Densley, J.
Author_Institution :
Ontario Hydro, Toronto, Ont., Canada
Abstract :
Extruded polymers used as insulations for high-voltage cables are susceptible, at high stress, to electrical-tree degradation which initiates at stress enhancements. Light is emitted during the tree-initiation phase, prior to the formation of channels and partial discharges. This paper presents data on the light emission and electrical treeing characteristics for two XLPE power cable insulations and shows that the light inception is directly related to the tree inception, as measured by ramp- or constant-voltage tests
Keywords :
XLPE insulation; electric breakdown; electroluminescence; partial discharges; power cable insulation; power cable testing; trees (electrical); XLPE power cable insulation; channels formation; electrical treeing; electroluminescence; light emission; partial discharges; stress enhancements; tree-initiation phase; Cable insulation; Cables; Dielectrics and electrical insulation; Electroluminescence; Partial discharges; Plastic insulation; Polymers; Stress; Thermal degradation; Trees - insulation;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549439
