PD Detecting during the Growth of Electrical Trees in HV XLPE Cable

Author

Sui, Heng ; Shen, LiMing ; Wang, Wei ; Yu, YanLong ; Wang, Zan ; Gao, ChaoFei

Author_Institution

Beijing Key Lab. of High Voltage & EMC, North China Electr. Power Univ., Beijing, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

Online observing the growth of electrical trees in XLPE cable section and monitoring its PD characteristics have been conducted. With different voltage levels, the electrical trees had different characteristics of growth. Secondary voltage applied promoted the growth of bush-like electrical trees. The PD data during the growth of electrical trees had been analyzed and found that the trends of the magnitude and times of PD in a frequency cycle with time are similar to the growth of bush-like electrical trees, which can be used to evaluate the degree of development of electrical trees in XLPE insulation, especially for HV and EHV cables.

Keywords

XLPE insulation; partial discharges; power cable insulation; trees (electrical); HV XLPE cable; XLPE insulation; bush-like electrical trees; partial discharge detection; secondary voltage; Breakdown voltage; Cable insulation; Partial discharges; Power cables; Vegetation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748496

Filename

5748496