可立即对UPS 电源各开关状态及电量各参数进行检查， 电源柜三相电源电压无异常，主路、旁路开关均处于合闸位置，电流为 0；将 UPS 输出屏主进开关分闸；

按 UPS 本体故障清除键按钮；

将UPS 输入主、旁路断路器分闸，静待 30 秒后恢复合闸；此时 UPS 自动转为旁路运行状态；

将 UPS 运行状态由旁路供电模式转换为正常整流逆变模式；检查 UPS 输出各项电量参数无异常；此时再将电池组开关由跳位分闸到分位，然后重新进行合闸，开关恢复正常合闸位置；

将 UPS 输出屏各开关恢复合闸位置，机房失电列头柜恢复供电；

通知 UPS 厂家人员到场对故障设备进行检查，排除故障隐患。

The switch status and power parameters of UPS power supply can be checked immediately. There is no abnormality in the three-phase power supply voltage of the power cabinet. The main circuit and bypass switches are in the closing position, and the current is 0; Open the main incoming switch of UPS output panel;

Press the ups body fault clearing button;

Open the ups input main and bypass circuit breakers, wait for 30 seconds and then resume closing; At this time, ups will automatically switch to bypass operation state;

Convert the operation state of ups from bypass power supply mode to normal rectifier inverter mode; Check that all power parameters output by ups are normal; At this time, open the battery pack switch from the tripping position to the opening position, and then close it again, and the switch returns to the normal closing position;

Restore the switches of UPS output panel to the closing position, and restore the power supply to the column head cabinet after power loss in the machine room;

Inform the ups manufacturer's personnel to check the faulty equipment and eliminate the hidden trouble.