Fault arc monitoring system of low voltage electrical circuit

The invention discloses a fault arc monitoring system of a low voltage electrical circuit. The fault arc monitoring system comprises a plurality of fault arc detecting nodes used for detecting voltageinformation and temperature information in the low voltage electrical circuit, a plurality of fault arc repeaters connected with the fault arc detecting nodes and used for positioning locations of fault arcs, a fault arc monitoring host connected with the fault arc repeaters, a central controller connected with the fault arc monitoring host, and a power switch connected with the central controller and used for controlling the turn-on or turn-off of the circuits of the fault arc detecting nodes and the fault arc repeaters. The fault arc monitoring system disclosed by the invention has the characteristics of high monitoring precision and high speed, and has a high promotion value and use value. 本发明公开了种低压电气线路故障电弧监测系统，包括用于检测低压电气线路中的电压信息和温度信息的多个故障电弧探测节点、与所述故障电弧探测节点连接的用于定位故障电弧所在位置的多个故障电弧中继器、与所述故障电弧中继器连接的故障电弧监测主机、与所述故障电