Title :
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
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;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973629
