Impact of conducting materials on furan-spectral correlation of transformer oil
MetadataShow full item record
This paper investigates the impact of conducting materials on the correlation of furan concentration in transformer oil and its spectral response characteristics. The presence of furan derivatives in aged-transformer oil has been one of the key indicators for solid dielectric deterioration. Identification and quantification of furan derivatives are currently performed using high performance liquid chromatography or gas chromatography-mass spectrometry based on ASTM D5837 standard. Although these techniques are well established, they need an expert personal to conduct the test and to analyse its results. Moreover, the test is relatively expensive and the analysis of oil sample may take days as most utilities sending transformer oil samples to external laboratories to be tested. Recently, it has been proven that furan concentration in transformer oil has a strong correlation to the oil spectral response. This paper is to validate this finding and to investigate the impact of conducting materials within transformer oil on this correlation. In this context, extensive experimental tests are conducted to assess the impact of various concentration of conducting materials (e.g., copper dust) dissolved in transformer oil samples of different furan contents on its absorption and transmission spectra. The measured experimental results show that, the impact of such small amount ofdissolved conducting materials on the oil spectral response is minimal.
Showing items related by title, author, creator and subject.
Abu-Siada, Ahmed; Lai, Sin; Islam, Syed (2008)Furans are the major degradation of insulating paper in transformer oil. Hence the concentration of furans in oilcan be used as a good indicator of paper deterioration. Furan concentration in transformer oil is currently ...
Das, Narottam; Abu-Siada, Ahmed; Islam, Syed (2012)The presence of furan derivatives in aged-transformer oil has been one of the key indicators for solid dielectric deterioration. Identification and quantification of furan derivatives are currently performed using high ...
Abu Bakar, Norazhar; Abu Siada, Ahmed; Das, Narottam; Islam, Syed (2013)Spectroscopic analysis is recently being employed to measure furan concentration in transformer oil. Light absorbance and spectral bandwidth are used as indicators to estimate furan concentration level in transformer oil. ...