摘要
归纳总结了影响绝缘子污闪电压的主要因素,并结合污闪发展过程和机理,分析绝缘子盐、灰密度、交直流电压特性、绝缘子结构、气压、环境温度、不均匀积污等各因素在污闪发展各阶段对污闪造成的影响,为线路运维单位分析输电线路污闪事故原因提供参考,以便改进防污闪措施,合理地选择输电线路外绝缘配置。
This paper summarizes the main factors influencing the insulator pollution flashover voltage. And in combination with the pollution flashover development process and mechanism, it analyzes various factors at each development stage of flashover, including density of insulator salt and ash, AC/DC voltage characteris- tics, insulator structure, air pressure, temperature, uneven pollution deposit and so on. This research can provide the reference to the transmission line operation and maintenance section in analyzing transmission line pollution flashover accidents in order to improve the anti-flashover measures and choose reasonable transmis- sion line external insulation configuration.
出处
《电力与能源》
2016年第1期123-128,共6页
Power & Energy
关键词
输电线路
绝缘子
气象环境
污闪电压
power transmission line
insulator
meteorological environment
pollution flashover voltage
