Experiment shows that the main circuit unit, control and protection unit, test and fault diagnosis unit, and cooling system is working well.
实验结果表明,主电路单元、控制与保护单元、检测与故障诊断单元及冷却系统在试验期间都应无异常现象发生。
参考来源 - 上海西郊变statcom的测控技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
ARM chip is chosen as the master chip of main control unit, main control unit includes data storage circuit and key and LCD display interface circuit besides.
主控单元的主控芯片选用了ARM芯片，并配以数据存储电路、按键和液晶显示接口电路。
This article proposes the operating principle and the program block-diagram of the automatic switching control to the main circuit-breaker on board of each powered unit of the train at proper time.
本文介绍了该装置对列车各车组适时进行主断路器自动分合闸控制的工作原理及程序框图。
The hardware circuit comprises three parts: inverter, detecting circuit and main control unit.
硬件分为三大部分，逆变器、检测电路和主控单元。
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