Analysis of the leakage current on polluted insulators using correlation coefficient

Author

Li, Xiangjun ; Feng, Yong ; Wong, Khoi Loon ; Sokolowski, Peter ; Yu, Xinghuo

Author_Institution

Sch. of Electr. & Comput. Eng., RMIT Univ. Melbourne, Melbourne, VIC, Australia

fYear

2011

fDate

7-10 Nov. 2011

Firstpage

3338

Lastpage

3342

Abstract

Flashover is damaging to the power transmission and distribution system. In this paper, correlation coefficient as a measure of nonlinearity is employed to analyze the leakage current signals generated from heavily polluted insulators for flashover prediction purpose. Data is generated with dry and wet conditions together with various supply voltages. By calculating the correlation coefficients between the supply voltages and the leakage currents, some patterns are found which may help identify the status of insulators.

Keywords

correlation theory; flashover; insulator contamination; leakage currents; power distribution faults; power transmission faults; correlation coefficient; flashover; leakage current analysis; nonlinearity; polluted insulators; power distribution system; power transmission system; Analytical models; Correlation; Current measurement; Insulators; Leakage current; Monitoring; Pollution measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Melbourne, VIC

ISSN

1553-572X

Print_ISBN

978-1-61284-969-0

Type

conf

DOI

10.1109/IECON.2011.6119847

Filename

6119847