Furan measurement in transformer oil by UV-Vis spectral response using Fuzzy Logic

Furan derivatives (2-acetyl furan, 2-furfural, 5-methyl-2-furfural, 5-hydroxymethyl 2-furfural, and 2-furfurylalcohol) presence in transformer oil are the key indicators of the solid dielectric degradation. In recent technology, such deterioration is measured according to ASTM D 5837 standard. However, the method requires very expensive and sophisticated equipment like High-Performance Liquid Chromatography (HPLC) or Gas Chromatography-Mass Spectrometry (GC/MS). This paper proposes a low cost and convenient approach in furan contents estimation based on UV-Vis spectrometry and Fuzzy Logic Theory.