浅析一次纵差调试跳闸失败的原因
Analysis of a Failure of Debugging on a Differential Trip
廖文 1梁今今 1王越超 1尤智文1
作者信息
- 1. 国网上海市电力公司市区供电公司,上海200080
- 折叠
摘要
国网上海市区供电公司在进行某变电站纵差保护回路调试时,发现在某站加故障电流后纵差保护只跳本站.首先对纵差保护原理,PCS943继电器纵差逻辑进行分析,并根据计算分析拒跳原因及临时改进措施,最后给出了进一步解决方法.
Abstract
When a differential protection in a substation of Urban Power Supply Company of SMEPC is debugging,it is found that differential protection starts only in one side of the two substations after the fault current produced.Firstly,the principle of differential protection,PCS943 differential relay logic is analyzed.The reasons for the refusal of trip is calculated.Temporary improvement measures is listed.Finally,the further solutions is given.
关键词
纵差保护/自保持/GOOSEKey words
Differential Trip/Self-sustaining/GOOSE引用本文复制引用
出版年
2014
NETL
NSTL
万方数据