除了有一个主断路器，它作为一项长期的开关并没有任何控制。
There are no controls except a master circuit breaker, which serves as an on-off switch.
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。
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.
通过对当前级位进行采样，控制级位的升、降和主断路器的分、合，完成机车自动过分相过程。
The system samples the current grade value and controls the grade and the main circuit breaker to avoid shorting the different phase power or damaging...
通过对当前级位进行采样，控制级位的升、降和主断路器的分、合，完成机车自动过分相过程。
The system samples the current grade value and controls the grade and the main circuit breaker to avoid shorting the different phase power or damaging the train. The who...
大型电站对主接线可靠性的要求更为严格，角形接线的应用往往受到断路器检修，即开环运行的影响。
The large power station is strict to the electrical connection scheme, the application of angle scheme usually influenced by overhaul of line breaker which cause unloosed topology.
选用四星型MOA作为限制真空断路器操作过电压的主保护器，效果十分明显。
The effect was obvious to select four-star connection MOA was a main protector to limit overvoltage in operation of a vacuum disconnector.
KA5为跳闸报警继电器。当设备产生偏励磁、可控硅故障、过电流等故障时，KA5吸合，断路器分励线圈得电跳闸，切断主电源。
When there are bias excitation, controllable silicon failure, over current and other failures, KA5 gets absorbed and breaker loop trips by powered on so as for switching off main power supply.
通过分析影响开断过程电弧重击穿现象的主、要因素，本文提出了几种抑制开断过程重击穿现象、提高断路器限流特性的有效方法。
By discussing the influences of restriking phenomena, some effective methods are presented for restraining restriking phenomena and improving the performance of current limiting.
断路器具有一种新颖的手动操作机构，能确保DW50断路器在主触头闭合时不会再储能，而在主触头断开时能正常储能。
The features, performances and main technical parameters of DW50-1000 were introduced in this paper, especially a new manual operation mechanism of the circuit breaker.
通过对断路器主触头与辅助触头的动作情况进行分析，提出了一种不用拆开合闸电阻与主触头的连接线就可以测量合闸电阻的方法，而且可以同时测出合闸电阻的提前合闸时间。
In this paper, the abnormal phenomenon of the closing time of a 500 kV circuit breaker was analyzed, and actions taken to avoid the condition in the other sites were put forward.
通过对断路器主触头与辅助触头的动作情况进行分析，提出了一种不用拆开合闸电阻与主触头的连接线就可以测量合闸电阻的方法，而且可以同时测出合闸电阻的提前合闸时间。
In this paper, the abnormal phenomenon of the closing time of a 500 kV circuit breaker was analyzed, and actions taken to avoid the condition in the other sites were put forward.
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