CAJ | 학술논문

为了研究矿物油与天然酯混合油-纸绝缘（混合油-纸绝缘）的热老化特性,揭示天然酯的存在对混合油-纸绝缘体系中水分和酸的影响,对矿物油-纸绝缘、混合油-纸绝缘在110℃下进行了加速热老化实验,通过分子模拟分析了这两种油-纸绝缘体系中水分与绝缘油和水分与绝缘纸的相互作用,并对老化后的绝缘纸进行了红外光谱分析。研究结果表明：混合油-纸绝缘抗老化能力优于矿物油-纸绝缘;混合油-纸绝缘中的天然酯能与水分和酸形成稳定的氢键,减弱水分和酸对绝缘纸的协同危害作用;混合油-纸绝缘系统中,绝缘纸纤维素上羟基和脂肪酸的酯化反应能抑制绝缘纸老化。
위료연구광물유여천연지혼합유-지절연（혼합유-지절연）적열노화특성,게시천연지적존재대혼합유-지절연체계중수분화산적영향,대광물유-지절연、혼합유-지절연재110℃하진행료가속열노화실험,통과분자모의분석료저량충유-지절연체계중수분여절연유화수분여절연지적상호작용,병대노화후적절연지진행료홍외광보분석。연구결과표명：혼합유-지절연항노화능력우우광물유-지절연;혼합유-지절연중적천연지능여수분화산형성은정적경건,감약수분화산대절연지적협동위해작용;혼합유-지절연계통중,절연지섬유소상간기화지방산적지화반응능억제절연지노화。
In order to study the aging characteristics of mineral oil mixed with natural ester oil-paper insulation（mixed oil-paper insulation） and reveal the effect of natural ester on the water and acid dissolved in the mixed oil-paper insulation system, the accelerated thermal aging test of mineral oil-paper insulation and mixed oil-paper insulation under 110℃ are performed. The interaction between water and oil, together with the interaction between water and insulation paper in the two types of oil-paper insulation systems are analyzed by the molecular simulation, and the infrared spectroscopy of aging papers are also researched. The results show that： the anti-aging of mixed oil-paper insulation is better than mineral oil-paper insulation. In mixed oil-paper insulation system, the natural ester can form stable hydrogen bonds with water and acid, which weakens the synergy endangerment role caused by moisture and acid on the insulation paper. The reactive -OH groups on the cellulose can react with fatty acids and this can inhibit the aging of insulation paper.