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。
The generator control unit (GCU) is the control center of the aircraft electrical power generation system (EPGS), GCU provides protection, control and BIT function for the EPGS.
发电机控制器(GCU)是飞机电源系统的控制中心，能实现对飞机电源系统的保护、控制及BIT功能。
The thermal protection system consists of a characteristic change thermal detector and an associated control unit.
该系统由一个特性变化的热检测器和一个关联的控制单元组成。
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