Fiber Bragg grating sensor for detecting ageing transformer oil

Author

Onn, B.I. ; Arasu, P.T. ; Al-Qazwini, Yusser ; Abas, A.F. ; Tamchek, N. ; Noor, A.S.M.

Author_Institution

Wireless & Photonic Network Res. Center, Univ. Putra Malaysia, Serdang, Malaysia

fYear

2012

fDate

1-3 Oct. 2012

Firstpage

110

Lastpage

113

Abstract

In this paper, we report the investigation of monitoring the degradation of transformer oil in power transformer using fiber Bragg grating sensor (FBG). The findings show that aging transformer oil has a higher refractive index (RI) compared to fresh transformer oil. This is detected by a wavelength shift in the FBG sensor´s spectral response. The outcome complies with the breakdown voltage test which is the standard test for testing transformer oil ageing. Finally, we show that the sensor is temperature independent.

Keywords

Bragg gratings; ageing; fibre optic sensors; infrared spectra; optical fibre testing; power transformers; refractive index measurement; spectral line shift; transformer oil; FBG sensor spectral response; breakdown voltage test; fiber Bragg grating sensor; power transformer; refractive index; standard test; temperature independent sensor; transformer oil ageing; transformer oil degradation; wavelength shift; Fiber gratings; Oil insulation; Power transformer insulation; Refractive index; Temperature measurement; Breakdown Voltage; FBG sensor; Insulation Oil; Refractive Index; Transformer Oil;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics (ICP), 2012 IEEE 3rd International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4673-1461-9

Type

conf

DOI

10.1109/ICP.2012.6379520

Filename

6379520