CAJ | 학술논문

复合绝缘子因其优异的耐污闪性能和良好的技术经济性越来越多地应用于超/特高压直流输电线路。对4支±800 kV直流复合绝缘子的伞裙进行了运行特性试验研究，主要包括憎水性测试、伞裙材料测试、扫描电镜(scanning electron microscope ， SEM)检测、傅里叶红外光谱分析(Fourier transform infrared spectroscopy analysis，FTIR)。研究结果表明：在特高压直流线路已经挂网运行5年的直流耐张串复合绝缘子的憎水性、伞裙材料性能存在不同程度的下降；电镜扫描与傅里叶红外光谱分析为评价复合绝缘子伞裙材料的老化程度提供了重要的参考。
복합절연자인기우이적내오섬성능화량호적기술경제성월래월다지응용우초/특고압직류수전선로。대4지±800 kV직류복합절연자적산군진행료운행특성시험연구，주요포괄증수성측시、산군재료측시、소묘전경(scanning electron microscope ， SEM)검측、부리협홍외광보분석(Fourier transform infrared spectroscopy analysis，FTIR)。연구결과표명：재특고압직류선로이경괘망운행5년적직류내장천복합절연자적증수성、산군재료성능존재불동정도적하강；전경소묘여부리협홍외광보분석위평개복합절연자산군재료적노화정도제공료중요적삼고。
Composite insulator has good application prospects in ultra-high voltage (UHV) DC transmission lines due to its excellent anti-pollution characteristic and high tech-economic efficiency. To analyze the aging characteristics of sheds of composite insulators in ±800 kV DC tension string, 4 pieces of ±800 kV DC composite insulators were selected to be tested. The detection items included hydrophobicity test, sheds materials test, scanning electron microscope (SEM) detection, Fourier transform infrared spectroscopy analysis (FTIR). The results show that the hydrophobicity and performance of sheds of tension string composite insulators running for 5 years in UHV DC lines exist degradation in varying degrees. The results show that, for the composite insulators running for 5 years in UHV DC lines, their shed materials suffer from different degrees of aging. SEM and FTIR can provide an important reference for the evaluation of aging degree of composite insulator shed materials.