同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
该断路器通过拨码开关完成整定电流、脱扣时间、瞬动倍数等参数的设定。
Through dial switches the circuit breaker can set rated current, tripping time, instantaneous multiple and so on.
永磁操动机构是新一代真空断路器的操作系统，是由机械操动向电子操动转变的关键。
The permanent magnet actuator, as the new operation system of vacuum circuit breakers, is the key to the transformation from mechanical actuation to electronic actuation.
本文给出了两种结构的可用于接触器、断路器及混合式电路的直动式极化磁系统，分析了其工作原理，并根据其等效磁路对其进行了计算。
The paper presents two kinds of the straight type polarized magnetic system that can be used in contactor, breaker and hybrid electrical appliance, and analyzed the working principle.
介绍了断路器瞬动特性的检测技术。
This paper introduced the technology of testing instantaneous characteristics for circuit breaker.
文章最后，介绍了计算机控制的断路器瞬动特性试验设备。
The circuit breaker's instantaneous characteristics test equipment controlled by computer is introduced at the end of this paper.
在此基础上首次提出了采用操作故障率等级与瞬动保护成功率等级作为低压断路器的可靠性指标。
Failure ratio and success ratio degree were confirmed as the reliability indexes of low-voltage circuit breaker at the first time.
利用它对国产OFPI—220型SF_6断路器进行的计算结果表明，改变动触头排气孔位置及电弧对动触头内腔中气体的热效应可明显提高开断电流时灭弧室压力上升速度。
The results show that the position of the exhausting gas hole and the arc heat effects on the gas inside the hollow moving contact have obviously raised the pressure rising speed.
永磁操动机构是新一代真空断路器的操作系统，是由机械操动向电子操动转变的关键。
A sort of permanent magnetic operating mechanism for vacuum breaker powered by super capacitors was described.
该断路器的永磁操作机构包括有可动轴、线圈和永磁体，可动轴位于线圈的轴线位置；
The permanent-magnet operating mechanism comprises a movable shaft, coils and a permanent magnet, wherein the movable shaft is positioned at the axial lines of the coils;
该断路器的永磁操作机构包括有可动轴、线圈和永磁体，可动轴位于线圈的轴线位置；
The permanent-magnet operating mechanism comprises a movable shaft, coils and a permanent magnet, wherein the movable shaft is positioned at the axial lines of the coils;
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