Study on DC component method for hot-line XLPE cable diagnosis

Author

Wei, Zhang ; Yutao, Zhu ; Baitun, Yang ; Yaonan, Liu

Author_Institution

Dept. of Electr. Eng., Xi´´an Jiaotong Univ., China

fYear

1994

fDate

5-8 Jun 1994

Firstpage

95

Lastpage

98

Abstract

It is well known that water-tree is one of the main reasons of XLPE cable insulation aging. With the widespread use of XLPE cables, how to diagnose water-tree aging in insulation becomes more and more important. It has been found that a small DC component will be produced through the insulation of XLPE cables in service. By detection of this DC component, the degree of the cable insulation degradation can be examined, and hot-line diagnosis is realized as well. In this paper, according to a possible model of DC component production, research work of simulating hot-line diagnosis has been conducted with 10 kV XLPE cables in the laboratory. The experimental results indicate that the DC component is in good correspondence with the degradation caused by water trees

Keywords

XLPE insulation; ageing; insulation testing; life testing; power cable insulation; power cable testing; trees (electrical); 10 kV; DC component method; DC component production; cable insulation aging; hot-line XLPE cable diagnosis; insulation degradation; water-tree; Aging; Cable insulation; Cables; Conductors; Copper; Degradation; Laboratories; Leakage current; Production; Trees - insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on

Conference_Location

Pittsburgh, PA

ISSN

1089-084X

Print_ISBN

0-7803-1942-7

Type

conf

DOI

10.1109/ELINSL.1994.401459

Filename

401459