Title :
Investigations of growth of electrical trees in XLPE cable insulation under different voltage profiles
Author :
Sarathi, R. ; Das, Supriyo ; Venkataseshaiah, C. ; Yoshimura, Naoko
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
Abstract :
The present work investigates the breakdown characteristics of high voltage XLPE cable by the electrical trees under the AC and composite voltages formed by AC and DC voltage. The structure of the electrical trees resembles a Tree-like-Tree or a Bush type of tree structure. The importance of the Weibull parameters for the present study was emphasized. The failure zone of the XLPE cables was characterised by certain physico-chemical analysis. The mechanical characteristics of the aged materials were also studied.
Keywords :
Weibull distribution; XLPE insulation; ageing; electric breakdown; power cable insulation; trees (electrical); AC voltage; DC voltage; Weibull parameters; XLPE cable insulation; aged materials; breakdown characteristics; electrical trees growth; failure zone; voltage profiles; Aging; Breakdown voltage; Cable insulation; Dielectric losses; Dielectric materials; Dielectrics and electrical insulation; Power cable insulation; Power cables; Trees - insulation; Underground power cables;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254942
