断路器取消合闸电阻限压措施的探讨  

Discussion on Breaker Overvoltage-control Measures for Elimination Closing Resistance

作　　者：崔忠宁[1] 文远芳[1] 唐波[1] 卞志文[1] 冯天佑[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《水电能源科学》2011年第2期150-152,共3页Water Resources and Power

基　　金：雷电灾害监测预警关键技术研究及系统开发基金资助项目(2008BAC36B00)

摘　　要：为解决取消合闸电阻后线路操作过电压不理想的问题,探讨了沿线加装氧化锌避雷器和错开合闸这两种限压措施的效果。以小湾500 kV电站一条输电线路为例,应用仿真软件ATP-EMTP,仿真计算了沿线加装氧化锌避雷器和错开各相合闸时间抑制操作过电压的可行性和效果,并根据实际运行情况给出了错开合闸建议。In order to reduce switching overvoltage of transmission line after eliminating closing resistance,two measures of adding MOA to the transmission line and staggered closing are discussed.Taking a transmission line of Xiaowan 500 kV substation in Yunnan Province for an example,the feasibility and effectiveness of two methods are verified by using ATP-EMTP software with simulated calculation.Suggestion of staggered closing is presented with considering practical operation situation of power system.

关 键 词：合闸电阻 断路器 限压措施 氧化锌避雷器(MOA) 错开合闸 

分 类 号：TM86[电气工程—高电压与绝缘技术] TM561