大电流接地系统接地故障时零序电压分析

The Analysis of Zero Sequence Voltage in Grounding Fault of High Current Grounding System

以某电网发生的一起变压器零序过压保护误动事故为例,对大电流接地系统线路发生接地故障时线路各侧零序电压的形成进行了简要的分析,并有针对性地提出此类误动事故防范措施。

We briefly analyzed the formation of zero-sequence voltage caused by large current grounding system misoperation accident,taking a transformer zero-sequence overvoltage malfunction as example.Protective measures about such misoperation accident were put forward.