某220kV变电站正母线跳闸事件分析  

Analysis of a 220kV Substation Positive Bus Tripping Event

作　　者：金乐婷 周刚 陈曦 孙莹 郑铭洲 JIN Yue-ting;ZHOU Gang;CHEN Xi;SUN Ying;ZHENG Ming-zhou(State Grid Jiaxing Power Supply Company,Jiaxing 314000,China)

机构地区：[1]国网嘉兴供电公司,浙江嘉兴314000

出　　处：《电气开关》2022年第6期102-105,共4页Electric Switchgear

摘　　要：母线起着汇集、分配和传送电能的作用,是变电站输送电能用的总导线,因此母线跳闸往往影响巨大。本文分析了一起某220kV变电站正母线事件。通过梳理事件经过、查询异常设备信息、现场检查处理情况、分析故障原因等步骤全面摸排总结此次正母线跳闸事件。经综合分析研判,此次事件主要由于作业人员对空间隔内正、副母闸刀位置不清楚导致。本文综合事故原因和检查情况分析并提出了后续改进措施,避免此类事件再次发生,规范了工作流程,提升了系统运行稳定性。The bus plays the role of collecting, distributing and transmitting electric energy.It is the main conductor used to transmit electric energy in the substation.Therefore, the bus tripping often has a huge impact.This paper analyzes a 220 kV substation positive bus incident.Through sorting out the event process, querying abnormal equipment information, checking the process conditions, analyzing the cause of the failure, etc.,the positive bus trip event was comprehensively summarized.After comprehensive analysis and judgment, the incident was mainly caused by the operator′s unclear position of the busbar switch in the clearance bay.This paper analyzes the cause of the accident and the inspection situation and proposes follow-up improvement measures to avoid the recurrence of such incidents, standardize the work process, and improve the stability of the system.

关 键 词：变电站 正母线 跳闸 事件分析 

分 类 号：TM63[电气工程—电力系统及自动化]