数字化变电站电容器保护误动原因分析及处理措施  

Cause Analysis and Treatment Measure on Electrolytic Capacitor False Action of Protection in Digital Substation

作　　者：李铁成[1] 陈海滨[2] 郝晓光[1] 张立[1] 韩永进[2] 谷晓斌[3] 

机构地区：[1]河北省电力研究院,石家庄050021 [2]邯郸供电公司,河北邯郸056035 [3]河北省电力公司职业技术培训中心,石家庄050031

出　　处：《河北电力技术》2011年第3期18-19,共2页Hebei Electric Power

摘　　要：针对保护动作直流分量偏大的现象,通过实验室模拟故障分析,认为保护装置采样值处理采用硬件积分是导致直流分量偏大的原因,提出改用软件积分的措施,并分析处理效果。Aiming at phenomenon of large DC component of protection action,this paper considers that the cause of the failure is the use of hardware integral through simulation failure analysis in laboratory,and at last,puts forwards the settlement that is to use software integral,and analyzes the settlement result.

关 键 词：数字化变电站 电容器 保护误动 直流分量 电子式互感器 电容器保护 

分 类 号：TM774[电气工程—电力系统及自动化]