青苔对输变电设备电气性能的影响  

Effects of Moss on Electrical Performance of Electrical Equipment

作　　者：肖前波 邓帮飞 印华 张海兵 XIAO Qianbo;DENG Bangfei;YIN Hua;ZHANG Haibing(Electric Power Research Institute of State Grid Chongqing Electric Power Company,Chongqing 401123,China;State Grid Chongqing Electric Power Company,Chongqing 400014,China)

机构地区：[1]国网重庆市电力公司电力科学研究院,重庆401123 [2]国网重庆市电力公司,重庆400014

出　　处：《电瓷避雷器》2020年第4期101-106,共6页Insulators and Surge Arresters

摘　　要：青苔具有极强的环境适应能力,广泛分布于输变电设备表面,从而增大了输电线路发生闪络事故的风险。笔者研究了输变电设备表面青苔的生长及分布特性。青苔是一种绿球藻和真菌共生的低等植物,在温暖潮湿、光照不足的情况下可以大量繁殖,它的分布深受环境因素的影响。同时还研究了青苔对电气设备绝缘性能的影响,青苔本身对电气性能的影响不大,主要是通过吸收空气中的水汽和盐,从而降低了设备的闪络电压,威胁电网的安全稳定运行。The moss has strong adaptability to the environment,and is widely distributed on the surface of power transmission and transformation equipment,which increases the risk of flashover accidents in power grid.The growth and distribution characteristics of the moss on the surface of electrical equipment were studied in this paper.The moss is a low-grade plant formed by the symbiosis of chlorococcus and some fungi,which can reproduce in large numbers under warm,humid conditions and insufficient sunshine.The moss distribution is deeply influenced by environmental factors.The author also studies the mechanism of moss which affect the electrical performance of electrical equipment.Moss itself has little impact on electrical performance,it reduces the flashover voltage of equipment mainly by absorbing water vapor and salt in the air,,thereby threatens the safety of power grid.

关 键 词：青苔 电气性能 分布特征 影响机理 

分 类 号：TM507[电气工程—电器]