The Growth of Electrical Tree and Its PD in Inner and Outer Layer of 110kV XLPE Cable Insulation

Author

Wei Wang ; Heng Sui ; YanLong Yu ; Yankun Wu ; Guanghui Chen

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

4

Abstract

The growth of electrical tree in inner and outer layer of 110kV XLPE cable insulation was observed and its partial discharge was detected online. Because of the production process of XLPE cable, there are differences of the growth of electrical tree inside and outside the cable insulation with different voltages. Electrical trees in inner layer of insulation have bigger growth rate than the outer. With higher voltage, the situation is more obviously. When 9kV and 12kV added, there is a stage of PD disappeared before breakdown occurred, but PD persistence with 18kV and there are different changes in inner and outer layer of cable insulation.

Keywords

XLPE insulation; cable insulation; partial discharges; trees (electrical); PD; XLPE cable insulation; breakdown; electrical tree growth; partial discharge; production process; voltage 110 kV; voltage 12 kV; voltage 18 kV; voltage 9 kV; Partial discharges; Power cable insulation; Power cables; Vegetation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Conference_Location

Shanghai

ISSN

2157-4839

Print_ISBN

978-1-4577-0545-8

Type

conf

DOI

10.1109/APPEEC.2012.6307327

Filename

6307327