Principal failure cases on distribution switchgear using in the 22.9kV-y distribution system

Author

Tae-Ho Kwon ; Chong-Eun Cho ; Jong-Man Joung ; Dong-Myung Kim

Author_Institution

Facility Diagnosis Center, Korea Electr. Power Corp., Daejeon, South Korea

fYear

2012

fDate

23-27 Sept. 2012

Firstpage

1032

Lastpage

1034

Abstract

The faults of the pole mounted switchgears and the pad mounted switchgears in the Korea Electric Power Corporation (KEPCO) distribution system that have occurred over the last one year have been analyzed. The result has shown that, in the case of the pole mounted switchgear, 40% of the faults were caused by the bushing part, and, in the case of the pad mounted switchgear, the breakdown of the internal insulators accounted for the 24% of the faults. This research paper will present the causes of the faults through detailed analyses with regard to the principal failure of the switchgears.

Keywords

bushings; poles and towers; power distribution faults; switchgear; KEPCO distribution system; Korea Electric Power Corporation; distribution switchgear; internal insulators breakdown; pad mounted switchgears; pole mounted switchgears; switchgear principal failure; voltage 22.9 kV; Circuit faults; Electron tubes; Insulators; Porcelain; Surface cracks; Switchgear; BMC; bushing; crack; insulator; moisture absorption; switchgear;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis (CMD), 2012 International Conference on

Conference_Location

Bali

Print_ISBN

978-1-4673-1019-2

Type

conf

DOI

10.1109/CMD.2012.6416331

Filename

6416331