探讨一种发电车接入箱防雨改造方案

Discussion on A Rain-Proof Retrofit Scheme for the Access Box of Power Generation Vehicles

变电站全站停电或者站用变二次侧进行检修工作时,为了防止交流母线失压造成电力生产事故,需要提前把发电车电缆接入发电车接入箱进行供电。当发电车接入箱接入发电车工作时,柜门无法关闭。此时如果遇到下雨等恶劣天气时,发电车接入箱内部线路可能会被淋湿发生短路,导致发电车接入箱损坏,出现人身安全和设备安全事故,若因此导致变电站后台保护系统失电,将引起严重的电网运行风险。

When the whole station of the substation is powered off or the secondary side of the station is used for maintenance work,in order to prevent the power production accident caused by the loss of the AC bus,it is necessary to connect the power car cable to the power car access box in advance for power supply.When the generator car access box is connected to the generator car,the door cannot be closed.At this time,if there is rain or other bad weather,the internal wiring of the generator car access box may be shortcircuited by the wet,resulting in damage to the access box of the generator car,personal safety and equipment safety accidents,and thus the substation background protection system Loss of electricity will cause serious grid operation risks.