The protection and control comprehensive unit (PCCU) is an important part of ISAS, which consists of kinds of function unit such as protection unit, control unit and man machine unit.
保护控制综合单元是“面向对象的变电站微机综合自动化系统”的重要组成部分，是对一次设备实现保护和控制的元件。
Equipped with infrared secure protection unit, the machine can guarantee operator's security.
装有红外是安全保护装置，确保操作人员安全。
Equipped with infrared secure protection unit, the machine can guarantee operator's security.
装有红外是安全保护装置，确保操作人员安全。
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