节点文献
110kV东南变1号主变110kV复压过流保护误动原因分析
The mal - operation analysis of thecompound voltage over - current protection for the No. 1 main transformer in southeastern substation with the capacitv of 110 kV
【摘要】 结合具体事故对保护CT在严重故障时过饱和造成的保护误动作了详细的分析,并提出了简易CT的 10%误差试验方法,为避免CT过饱和造成的保护误动提供了借鉴。
【Abstract】 The mal -operation of the current transformer (CT) caused by super - saturation when badly mal-functions occur is analyzed in details by combining with the practical cases, and the testing method of error 10% for simple CT is put forward, which is worth referencing to avoid the protective mal -operation of CT re-sulted from super - saturation in the paper.
【关键词】 继电保护;
电流互感器(CT);
饱和特性;
测量方法;
测量误差;
【Key words】 <Keyword>relay protection; current transformer; saturation characteristic; measure method; measure error;
【Key words】 <Keyword>relay protection; current transformer; saturation characteristic; measure method; measure error;
- 【文献出处】 黑龙江电力 ,Heilongjiang Electric Power , 编辑部邮箱 ,2004年05期
- 【分类号】TM774
- 【下载频次】53