一起死区故障导致35 kV母差保护动作案例分析  

Analysis of a Case of 35 kV Bus Differential Protection Action Caused by a Deadband Fault

作　　者：张港 蔡潇 李明 ZHANG Gang;CAI Xiao;LI Ming(State grid Jiangsu Province electric power company Haian power supply company,Jiangsu Haian 226600,China;Taizhou Sanxin power supply service Co.,Ltd.Xinghua branch,Jiangsu Xinghua 225700,China;State grid Jiangsu electric power company marketing service center,Jiangsu Nanjing 210000,China)

机构地区：[1]国网江苏省电力有限公司海安市供电分公司,江苏海安226600 [2]泰州三新供电服务有限公司兴化分公司,江苏兴化225700 [3]国网江苏省电力有限公司营销服务中心,江苏南京210000

出　　处：《农村电气化》2024年第1期89-90,共2页Rural Electrification

摘　　要：介绍了在AVC切除电抗器过程中,发生的一起35 kV母差保护动作事件,导致35 kVⅡ段母线上所有开关全部跳闸。根据现场采集情况,分析了开关跳闸原因,同时对预控措施做了阐述。This article introduces a 35 kV bus differential protection action event that occurred during the AVC reactor removal process.Causing all switches on the 35 kVⅡsection bus to trip.Based on on-site collection,the cause of switch tripping was analyzed,and the pre control measures were stated.

关 键 词：35 kV母差保护 电抗器 死区故障 

分 类 号：TM721[电气工程—电力系统及自动化]