Acoustic monitoring of HV equipment with optical fiber sensor

Author

Kim, T.Y. ; Nam, J.H. ; Suh, K.S.

Author_Institution

Dept. of Mater. Sci. & Eng., Korea Univ., Seoul, South Korea

fYear

2001

fDate

2001

Firstpage

241

Lastpage

244

Abstract

This paper presents the preliminary results on the application of optical fiber sensor (OFS) for the measurements of discharging signals in insulating oil. An all-optical-fiber-sensing system using a Mach-Zehnder interferometry technique was constructed. It was found that the discharging signal produced by needle-sphere electrodes could be detected by OFS, which was confirmed by current probe and PZT sensor. By quantification of acoustic signal measured by OFS, a correlation between acoustic and electrical discharge signals was observed

Keywords

acoustic signal detection; condition monitoring; fibre optic sensors; insulation testing; light interferometry; partial discharge measurement; transformer oil; HV equipment; Mach-Zehnder interferometry; acoustic monitoring; all-optical-fiber-sensing system; discharging signals; insulating oil; insulation condition; needle-sphere electrodes; on-line diagnosis; optical fiber sensor; Acoustic measurements; Acoustic sensors; Acoustic signal detection; Electrodes; Monitoring; Oil insulation; Optical fiber sensors; Optical interferometry; Petroleum; Probes;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973629

Filename

973629