两侧变电站不同主接线方式下220 kV线路远跳功能实现方法分析  

Analysis on a Realization Method of Remote Tripping Function of 220 kV Transmission Lines under Different Main Connection Modes of Substations on Both Sides

作　　者：闫茂华 YAN Maohua(Wuzhou Bureau,CSG EHV Power Transmission Company,Guangxi Wuzhou 543000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司梧州局,广西梧州543000

出　　处：《广西电力》2020年第4期16-18,29,共4页Guangxi Electric Power

摘　　要：以两侧变电站不同主接线方式下220 kV线路保护改造为例,分析了3/2接线侧断路器失灵保护跳开双母线接线侧断路器时该线路远跳功能的实现方法,并提出了可行的优化措施,为线路改造前的设备选型工作提供指导。所提措施不仅降低了二次设备改造复杂度,还降低了设备投资及后期维护成本。The modification of 220 kV transmission line protection under different main connection modes of substations on both sides is taken as an example to analyze the realization method of remote tripping function of the line when the circuit-breaker failure protection on the 3/2 connection side trips the circuit breakers on the double busbar connection side.Feasible optimization measures are proposed to provide guidance on equipment selection before the modification of transmission lines.The proposed measures reduce not only the complexity of secondary equipment modification,but also investment in equipment and subsequent maintenance costs.

关 键 词：3/2接线 双母接线 远跳功能 保护改造 

分 类 号：TM773[电气工程—电力系统及自动化]