ＣＴ在运行期间若供电中断，便会导致随机存贮器中数据丢失和程序破坏，有时甚至会使磁盘面及磁头损坏。目前，国内使用的ＣＴ大多配有ＵＰＳ电源，特别是在线式ＵＰＳ电源本身就是一个良好的交流稳压电源。当市电电网供电正常时，它首先将市电交流电源变成直流电源，然后ＵＰ If the power supply is interrupted during the operation of the CT, it will result in data loss and program destruction in the RAM, and sometimes even damage the disk surface and the head. At present, most CTs used in China are equipped with UPS power supplies. In particular, the on-line UPS power supply itself is a good AC regulated power supply. When the mains electricity supply is normal, it first turns the commercial AC power into a DC power supply, and then it goes up.