一起110 kV变电站越级跳闸事故分析及应对措施
Analysis and Countermeasures of A 110 kV Substation Overstep Tripping Accident
易成星 1贾兴兴2
作者信息
- 1. 国网浙江省电力有限公司杭州供电公司,浙江杭州 310000
- 2. 国网浙江省电力有限公司嘉善供电公司,浙江嘉兴 314100
- 折叠
摘要
变电站发生越级跳闸会延长故障时间和扩大停电范围,引起了人们高度重视.文章从变电站运行方式、事故经过、事故分析以及事故处理等方面深入剖析一起110 kV变电站越级跳闸事故案例,得出直流系统维护欠缺是该次越级跳闸的根本原因.最后,提出直流系统的针对性维护措施,可有效避免故障时直流失电引起的越级跳闸事故.
Abstract
Overclass tripping in substations can prolong the fault time and expand the scope of power outages,which has attracted great attention.The article deeply analyzes a case of a 110 kV substation over level tripping accident from the aspects of substation operation mode,accident process,accident analysis,and accident handling,and concludes that the fundamental reason for the over level tripping was the lack of maintenance of the direct current system.Finally,targeted maintenance measures for the direct current system are proposed,which can effectively avoid the occurrence of over class tripping accidents caused by direct current power loss during faults.
关键词
越级跳闸/变电站/直流系统/事故案例/电力系统Key words
overstep tripping/substation/direct current system/accident case/power system引用本文复制引用
出版年
2024
NETL
NSTL
万方数据