运行复合绝缘子不均匀老化特性分析  

Study on Uneven Ageing Characteristics of Operated Composite Insulators

作　　者：李允 谢红玲[1] 李燕青[1] 刘杰 贾伯岩 康淑丰 LI Yun;XIE Hongling;LI Yanqing;LIU Jie;JIA Boyan;KANG Shufeng(Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense,North China Electric Power University,Baoding 071003,China;Hebei Electric Power Research Institute,State Grid Hebei Electric Power Supply Co.,Ltd.,Shijiazhuang 050021,China;State Grid Hebei Electric Power Maintenance Company,Shijiazhuang 050021,China)

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003 [2]国网河北省电力公司电力科学研究院,河北石家庄050021 [3]国网河北省电力公司检修分公司,河北石家庄050021

出　　处：《绝缘材料》2018年第7期60-64,共5页Insulating Materials

摘　　要：以现场运行后的复合绝缘子为实验样本,通过红外光谱实验,将Si-CH3侧链和Si-O-Si主链的吸收峰面积作为主要依据,对复合绝缘子的不均匀老化特性进行研究。结果表明:复合绝缘子同一伞裙的上下表面、不同方位和不同位置的伞裙表面的老化状态均存在差异;不同差异对整支绝缘子老化的影响程度不同,方位差异影响大于位置差异,位置差异影响大于上下表面差异。The composite insulators after operation in field were characterized by Fourier transform infrared spectroscopy（FTIR）, and the uneven ageing characteristics of composite insulators were studied using the peak areas of Si-CH3 side chain and Si-O-Si main chain as main basis. The results show that there are differences in the ageing states of upper and lower surfaces from the same shed and shed surfaces in different azimuths and locations. The influence of different differences on the ageing degree of the whole insulator is different. The influence of azimuth difference is greater than that of the position difference, and the influence of position difference is greater than that of the difference between upper and lower surface.

关 键 词：复合绝缘子 老化状态 不均匀性 憎水性 傅里叶红外光谱 

分 类 号：TM216[一般工业技术—材料科学与工程] TM85[电气工程—电工理论与新技术]