一起励磁涌流闭锁导致的配电自动化开关异常动作案例分析  

A Case Analysis of Abnormal Operation of Distribution Automation Switch Caused by the Magnetizing Inrush Current Lockout

作　　者：李鹏程 陈阳 李永卿 李维 王骁龙 徐鑫 陈晨 Li Pengcheng;Chen Yang;Li Yongqing;Li Wei;Wang Xiaolong;Xu Xin;Chen Chen(Electric Power Research Institute of Yunnan Electric Power Company,Kunming 650217,Yunnan,China;Yunnan Power Grid Limited Liability Company Honghe Power Supply Bureau,Honghe 662200,Yunnan,China;Yunnan Power Grid Limited Liability Company Lincang Power Supply Bureau,Lincang 677000,Yunnan,China;Yunnan Power Grid Limited Liability Company Dali Power Supply Bureau,Dali 671500,Yunnan,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650217 [2]云南电网有限责任公司红河供电局,云南红河662200 [3]云南电网有限责任公司临沧供电局,云南临沧677000 [4]云南电网有限责任公司大理供电局,云南大理671500

出　　处：《云南电力技术》2024年第3期88-93,共6页Yunnan Electric Power

摘　　要：立足于当前云南电网配电自动化实用化背景,结合系统内一起配电自动化开关异常动作案例,针对配电自动化开关励磁涌流闭锁功能错误触发开展分析并给出优化建议。首先,介绍了线路参数及保护配置情况,奠定后续分析基础。之后,基于SOE信息复现开关动作过程,明确开关异常动作情况。最后,结合故障录波信息阐述配电自动化开关异动原因,并给出优化建议。Based on the practical background of distribution automation in Yunnan power grid currently,the incorrect triggering of the excitation surge current lockout function of the distribution automation switch is analyzed by combining with a case of abnormal reaction,and the optimization suggestions is elaborate accordingly.Firstly,the parameter and protection configuration of distribution line are introduced,laying the foundation for subsequent analysis.Then,to clarify the abnormal reaction of target switch,the reaction process is reproduced based on the SOE information.Finally,the reasons for the abnormal reaction of the distribution automation switch are explained by employing the fault recording information,and optimization suggestions are provided simultaneously.

关 键 词：配电自动化开关 异常动作 励磁涌流闭锁 误触发 故障录波 

分 类 号：TM74[电气工程—电力系统及自动化]