Title :
Evolution of ac and impulse breakdown strength of HV XLPE cable after long term test. Correlation with physical properties
Author :
Bezille, J. ; Janah, H. ; Chan, J. ; Hartley, M.
Author_Institution :
Alcatel Cable, Calais, France
Abstract :
Despite the good knowledge of actual materials for HV insulation cable, the influence of aging on dielectric properties is not well known. Recent 90 kV XLPE cable aged on site with load cycles has been investigated just after fabrication, after 15 000 hours and 30 000 hours aging. In addition, the thermal loop after 30 000 hours only stressed with thermal cycles is also under investigation, allowing separation of thermal and electrical stresses influence on insulation aging. Electrical and physical properties are followed with aging time and compared with those of unaged insulation
Keywords :
ageing; 15000 hour; 30000 hour; 90 kV; AC breakdown strength; HV cable insulation; XLPE; aging; dielectric properties; electrical stress; impulse breakdown strength; long term test; thermal cycles; thermal loop; thermal stress; Aging; Dielectric breakdown; Dielectric materials; Dielectric thin films; Dielectrics and electrical insulation; Electric breakdown; Impulse testing; Performance evaluation; Thermal stresses; Wire;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1994., IEEE 1994 Annual Report., Conference on
Conference_Location :
Arlington, TX
Print_ISBN :
0-7803-1950-8
DOI :
10.1109/CEIDP.1994.592033
