Degradation of electrical insulating paper monitored using high performance liquid chromatography

作者：J. Unsworth, F. Mitchell · 年份：2003 · DOI：10.1109/icpadm.1988.38403 · 被引用次数：12 · 研究领域：Power Transformer Diagnostics and Insulation、High voltage insulation and dielectric phenomena、Water Quality Monitoring and Analysis

The degradation of electrical Kraft paper in carefully controlled laboratory experiments is examined in order to find a correlation between the decrease of dielectric properties, mechanical strength, and average molecular weight of the cellulose and the increase in concentration of furan compounds. The concentration of 2-furaldehyde in impregnating mineral oil appears to be inversely proportional to the tensile strength of aged paper, indicating that the furan analysis could be a valuable test for the degradation of the insulating paper.>