UPS 2N系统改造割接中的零线处理方法

Processing Method of Zero Line in UPS 2N System Modification and Cutover

从一起通信大楼不间断电源(Uninterruptible Power System,UPS)2N系统改造割接时出现的电源二次屏零线打火引起后端部分负载设备瞬间掉电故障案例着手,分析了系统改造割接中对零线的不规范连接方式未及时处理产生的后果,提出了系统改造割接中零线的正确处理方法,对于通信大楼安全、可靠、稳定供电具有重要作用。

Starting from a case of instantaneous power failure of the back-end partial load equipment caused by the ignition of the neutral line of the secondary screen of the power supply during the transformation and cutover of the Uninterruptible Power System(UPS)2N system of a communication building,it is analyzed that the non-standard connection method of the neutral line in the system transformation and cutover is not correct.In order to deal with the consequences in time,the correct handling method of the neutral line in the system transformation and cutover is proposed,which plays an important role in the safe,reliable and stable power supply of the communication building.