妈龙甲、乙线绝缘子辉光放电的分析与对策  

Analysis and countermeasures to insulator glow discharge on Line Malong AB

作　　者：蒋安祥 陈启胜 冯亚光 何欣汶 

机构地区：[1]妈湾发电总厂,广东深圳518052

出　　处：《广东电力》2005年第10期50-52,共3页Guangdong Electric Power

摘　　要：深圳妈湾发电总厂220 kV妈龙甲、乙线自投入运行以来,一直存在较为明显的绝缘子辉光放电现象,经分析认为,其主要原因是该线路靠近海水脱硫曝气池,化学污染十分严重。辉光放电可能造成线路闪络接地短路,威胁人身和设备安全,并引起通信故障和保护误动。为了解决上述问题,必须努力改善绝缘子的性能,加强绝缘子表面的清扫工作,确保重合闸的正确投入,并在以后的脱硫系统选址工作中,充分考虑排放物对电气设备正常运行的影响。Notable insulator glow discharge has existed on 220 kV Line Malong AB of Mawan General Power Plant in Shenzhen, China since the line was put into operation. Upon analysis, it is concluded that the problem is mainly caused by the severe chemical pollution produced by the adjacent aeration tank for desulphurization with seawater. Glow discharge may result in flashover and ground short circuit of the line, endanger personal and equipment safety, and cause communication failures and protection maloperation. To solve the above problem, it is suggested to improve the performance of insulators, strengthen the cleaning of insulator surface, ensure the correct actuation of reclosing, and take under advisement the effects of emissions on the normal operation of electric equipment during future siting of desulphurization system.

关 键 词：海水脱硫 绝缘子 闪络 辉光放电 

分 类 号：TM852[电气工程—高电压与绝缘技术]