矿山巷道架线式直流电机车硅整流电源设备一般均需装在 无人看守的巷道中心区,并且要同时供给数个水平的电机车用电。当这些硅整流设备发生过电流或内部元件出故障时,都可自动跳闸切断电源,避免事故扩大。根据经验,跳闸大多是因为瞬时过电流所致,跳闸后呈停供电状态,恢复供电必须安排人员重新进行合闸操作,特别是在不同水平操作时,人员必须爬至少几十米的竖井,实行起来非常不便,对生产影响很大。有时为了这一点甚至采取违规措施,使设备失去保护,结果带来的便是烧毁设备器件等更加恶性的设备事故。这 Mine Roadway overhead DC locomotive silicon rectifier power supply equipment generally need to be installed in the center of the unattended roadway, and to supply several levels of electric locomotive electricity. When these silicon rectifier device over-current or internal components failure, can automatically trip off the power to prevent the accident from expanding. According to experience, most of the trip is caused by transient overcurrent. After the trip, the power supply is stopped and the power supply must be resumed. In particular, at different levels of operation, personnel must climb up to a few tens of meters of shafts to implement It is very inconvenient to have a great influence on the production. In some cases, even illegal measures are taken to lighten the equipment and result in even more serious equipment accidents such as burning of equipment. This