一种直流母线混接造成的变电站直流系统接地故障分析

Analysis of the Substation DC System Grounding Fault Resulting from the Mixing of DC Buses

文章通过分析一起直流I段母线、II段母线电源混接导致直流绝缘监测装置报警的特殊情况,寻求判断直流系统特殊接地故障的新思路和新方法。

Through analysis of special cases,in which mixed power of DC I bus and DC II bus led to alarm of DC insulation monitoring device,the paper explores new thinking and new method for DC system grounding fault judgement.