Title :
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
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;
Conference_Titel :
Photonics (ICP), 2012 IEEE 3rd International Conference on
Conference_Location :
Penang
Print_ISBN :
978-1-4673-1461-9
DOI :
10.1109/ICP.2012.6379520
