接地异常引起的设备故障分析处理

Analysis of Equipment Fault Caused by Ground Fault

以一起变电站接地异常引起的设备故障为例,分析了造成设备故障的原因,提出下一步急需对所有变电站接地网开展普测和开挖检查工作,对锈蚀严重、接地电阻超标的立即进行接地网改造等针对性防范措施,有效避免因接地异常引起设备损坏事件的重复发生。

Taking an equipment fault caused by ground faults in a substation as an example, the fault causes are analyzed. It is suggested that general survey and excavation inspection on all the substations are supposed to be carried out. Preventive measures, such as grounding grids transformation should be implemented to prevent serious corrosion and excessive ground resistance, which would prevent the recurrence of equipment damage caused by grounding faults.