Development and on-site application of UHF PD detection system to estimate the insulator condition of MV switchgear

Author

Kang, W.J. ; Park, J.N. ; Lee, D.H. ; Shin, Y.S. ; Kim, Y.K. ; Oh, I.S. ; Kim, D.M. ; Lim, K.J.

Author_Institution

Electrotechnol. R&D Center, LS Ind. Syst., Seoul

fYear

2008

fDate

21-24 April 2008

Firstpage

1123

Lastpage

1126

Abstract

Defects in the SF₆ medium voltage (MV) switchgear can result in failure. Therefore it is important to detect defects, such as protrusions and particle, in time and to determine their risk for a possible breakdown. For high voltage apparatus, the ultrahigh frequency (UHF) partial discharge (PD) detection technology has proven to be a sensitive method. In this contribution the development of UHF PD detection system for the MV switchgear and its application are described. Experimental studies show that the PD detection of the MV switchgear defects is possible.

Keywords

SF₆ insulation; electric breakdown; fault diagnosis; insulators; partial discharges; switchgear; UHF PD detection system; insulator condition estimation; medium voltage switchgear; ultrahigh frequency partial discharge; Frequency measurement; Insulation; Noise measurement; Partial discharges; Pattern analysis; Signal analysis; Spectral analysis; Sulfur hexafluoride; Switchgear; UHF measurements; MV Switchgear; UHF PD; diagnosis;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1621-9

Electronic_ISBN

978-1-4244-1622-6

Type

conf

DOI

10.1109/CMD.2008.4580481

Filename

4580481