1000kV高抗保护零序电流突变量越限的原因分析及处理  

Cause Analysis and Treatment for the Overthreshold of Zero Sequence Current Sudden Variable Observed in an Operating 1000 kV High Voltage Shunt Reactor Protection

在线阅读下载全文

作  者:王晨宇 路红池 贺非 刘易任 齐肖彬 WANG Chenyu;LU Hongchi;HE Fei;LIU Yiren;QI Xiaobin(State Grid Hebei Extra High Voltage Company,Shijiazhuang 050070,China)

机构地区:[1]国网河北省电力有限公司超高压分公司,河北石家庄050070

出  处:《电工技术》2023年第18期107-109,共3页Electric Engineering

摘  要:针对某1000 kV变电站发生的一起由零序电流突变量越限引起的高抗保护运行异常告警动作事件,结合保护装置告警报告、装置录波和装置原理对高抗保护装置运行异常行为进行分析,确定保护启动和告警原因,并通过实验方法找出由绝缘损坏导致的二次回路接地点,有效制止了故障的发展,避免了跳闸事件的发生。In view of an abnormal alarm action event occurred in the operation of a certain high voltage shunt reactor protection in a 1000 kV substation caused by the overthreshold of zero sequence current sudden variable,the abnormal operation behavior of high voltage shunt reactor protection device is analyzed in combination with the protection device alarm report,device wave recording and device principle to determine the cause of protection startup and alarm.Through experimental method,the secondary circuit grounding point caused by insulation damage is found out,which effectively prevented the development of the fault and avoided the occurrence of tripping events.

关 键 词:高抗保护 零序电流突变量 运行异常 二次回路接地 绝缘损坏 

分 类 号:TM774[电气工程—电力系统及自动化]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象