GIS变电站母联开关电流三相不平衡故障调度处置策略探讨  

Discussion on Dispatching Strategy of Three-phase Unbalanced Faults of Bus Tie Switch Current in GIS Substation

作　　者：崔艳林 蔡新雷 董锴 何祥针 孟子杰 林旭 CUI Yanlin;CAI Xinlei;DONG Kai;HE Xiangzhen;MENG Zijie;LIN Xu(Electric Power Dispatching and Control Center of Guangdong Power Grid,Guangzhou 510600,China)

机构地区：[1]广东电网有限责任公司电力调度控制中心,广东广州510600

出　　处：《电工技术》2021年第13期124-125,128,共3页Electric Engineering

摘　　要：介绍了一起由刀闸非全相导致220 kV GIS变电站母联开关电流三相不平衡故障的处理思路和过程。利用电流分析法定位了故障点,确认了母线之间存在C相刀闸电气硬跨接。探讨了变电站刀闸非全相和开关三相电流不平衡故障处理思路,针对GIS设备的故障处置提出相关建议。The idea and process of dealing with a rare three-phase unbalance fault of bus tie switch current in 220 kV GIS Substation caused by incomplete phase of switch are introduced.The current analysis method is used to locate the fault point,and it is confirmed that there is a C-phase switch electrical hard jumper between the bus bars.The fault processing ideas of substation switch non-full-phase and switch three-phase current imbalance are discussed,and the relevant suggestions for the fault processing of GIS equipment are put forward.

关 键 词：GIS变电站 不平衡电流 非全相 故障处理 

分 类 号：TM595[电气工程—电器]