Aging of 154 kV underground power cable insulation under combined thermal and electrical stresses

Author

Aras, Faruk ; Alekperov, Vilayed ; Can, Nursel ; Kirkici, Hulya

Author_Institution

Kocaeli Univ., Kocaeli

Volume

23

Issue

5

fYear

2007

Firstpage

25

Lastpage

33

Abstract

This work the combined electrical and thermal stresses of the 154 kV XLPE power cable used in the underground power transmission in Turkey. The dependence of aging on electrical and thermal stresses is given by a straight line in a certain range of electric field (E) values which indicates that the aging is a thermochemical process. Furthermore, cable tests are conducted in oil, and the results are valid for immersed insulation but might not be completely representative of XLPE used in service in a "dry" environment. Therefore, each cable insulator has to be tested and the parameters must be determined for each cable separately.

Keywords

XLPE insulation; ageing; power cable insulation; power cable testing; underground cables; Turkey; XLPE insulation; aging; cable testing; electrical stress; oil immersed insulation; thermal stress; thermochemical process; underground power cable insulation; voltage 154 kV; Aging; Cable insulation; Dielectrics and electrical insulation; Insulation testing; Oil insulation; Petroleum; Power cables; Power transmission; Thermal stresses; Underground power cables;

fLanguage

English

Journal_Title

Electrical Insulation Magazine, IEEE

Publisher

ieee

ISSN

0883-7554

Type

jour

DOI

10.1109/MEI.2007.4318272

Filename

4318272