【摘要】 为研究110k V运行复合绝缘子硅橡胶伞裙的老化状态,采用傅里叶变换红外光谱(Fourier Transform Infrared Spectrometer,FTIR)技术对来自同一厂家运行于3个不同地区的9支110k V复合绝缘子硅橡胶伞裙典型基团变化情况进行了研究。对比了不同部位、污区及运行年限硅橡胶伞裙中Si-O-Si主链及Si-CH3侧链反射率差异,结果显示导线侧伞裙、重污秽地区运行伞裙及运行年限较长伞裙的红外反射率较小,表明强电场、重污环境及长运行年限复合绝缘子硅橡胶伞裙老化较严重,硅橡胶伞裙老化状况随运行年限表现出缓慢增长-急剧增加-缓慢变化的趋势;同时运行年限对硅橡胶伞裙老化的作用相对最强,电场强度作用次之,而运行环境作用相对较弱,结合硅橡胶伞裙表面SEM测试结果对硅橡胶伞裙的老化差异进行了理论分析。更多还原

【Abstract】 In order to study on the aging characteristic of silicone rubber sheds of 110 k V composite insulators, 9 silicone rubber composite insulators running in 3 different regions with 110 k V were study with the Fourier transform infrared spectrum(FTIR) method. The FTIR difference of the silicon rubber sheds running with different electric field level, service environment and operating years were analyzed. The results indicate that the FTIR of the rubber silicon shed with higher electric field, more serious pollution environment and longer running years is smaller. At the same time, it is shown that the rubber silicon shed with higher electric field, more serious pollution environment and longer running years also aged more seriously. Moreover, the aging velocity of the rubber silicon shed increased slowly in the first 9 years running time, then increased sharply and become slowly after 13 years running time. The operating year deteriorates the silicon rubber sheds more seriously than electric field and service environment. The SEM photographs of the silicon rubber sheds were also analyzed to demonstrate the surface deterioration of silicon rubber sheds.更多还原