一起10kV开关储能电机烧坏事故原因分析

Analysis of the cause of burnout of a 10 kV switch energy storage motor

通过对某变电站现场一起储能电机烧坏事故原因分析,探讨三相四线制供电形式对零线接地可靠性的要求,得出双重零线布置对供电电压稳定性的保障,并结合现场实际,提出便于现场实现的布置措施和注意事项,有效避免零线断线对设备的损伤。

Through the analysis of the cause of the burnout accident of a stored energy motor in a substation site,the requirements of the three-phase four-wire power supply form for the grounding reliability of the neutral line are discussed,and the stability of the supply voltage stability by the double neutral line arrangement is obtained.On the spot,the layout measures and precautions that are easy to implement on site are proposed to effectively avoid damage to the equipment caused by the broken wire.