Title :
Furfural analysis in transformer oils using laser raman spectroscopy
Author :
Somekawa, Toshihiro ; Fujita, Masayuki ; Izawa, Yasukazu ; Kasaoka, Makoto ; Nagano, Yoshitomo
Author_Institution :
Inst. for Laser Technol., Suita, Japan
Abstract :
The concentration of furfural in transformer oils is a well known indicator for decomposition of insulating paper. Using laser Raman spectroscopy, we performed detection experiments of furfural dissolved in insulating oils without complex and time consuming preprocessing procedures. Furfural was characterized by Raman signal at ~1707 cm-1, where no spectral interferences caused by oil-derived Raman signals occur. The results show that laser Raman spectroscopy is a useful alternative method for transformer health diagnosis.
Keywords :
Raman spectroscopy; fault diagnosis; laser beam applications; paper; transformer oil; furfural analysis; furfural concentration; insulating oil; insulating paper decomposition; laser Raman spectroscopy; oil-derived Raman signal; spectral interference; transformer health diagnosis; transformer oil; Educational institutions; Free electron lasers; Oil insulation; Oils; Power transformer insulation; Raman scattering; Power transformers; Raman scattering; insulation testing; lasers applications;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2014.004800