摘要
分析了本钢三连铸3#主变差动保护误动作的原因,提出了冲击电流和非周期性直流分量对差动保护的影响及解决办法。
The causes of a differential protection misoperation of the No.3 main transformer for Benxi Steel＇s continuous casting are analyzed and the effect of impact current and aperiodic DC component on differential protection as well as solutions is put forward.
出处
《冶金动力》
2018年第7期19-22,24,共5页
Metallurgical Power
关键词
比率差动保护
冲击电流
非周期性分量
差动电流
CT饱和
ratio differential protection
impact of current
aperiodic component
differential current
CT saturation
