最用途广泛的机械工具是引擎车床，提供一个原则轴转台式主运动，当适当的合闸动作被给予到工具时。
The most widely used machine tool is the engine lathe, which provides a principle axis rotary primary motion to while the appropriate feed motions are imparted to the tool.
高压、超高压输电线路的开关为分相开关，当对侧开关单相偷跳后，在线路负荷比较重、同时重合闸动作时间比较长的情况下可能引发系统振荡。
HV and EHV transmission lines are equipped with split-phase breaker. If a longer reclosing time is setting in a heavy load line, the system may swing after the trip without fault of remote breaker.
少数情况属永久性故障，自动重合闸装置动作后靠继电保护动作再跳开，查明原因，予以排除在送电。
Limited circumstances permanent fault, automatic re-closing devices on the move after the opening relay action Zaitao to identify reasons, be excluded from the power supply.
电网中运行的线路保护装置的重合闸误动作，将会引起人身以及电网事故。
The incorrect reclose of line protective devices in electric power system will result in personal injuries and system accidents.
提出一种万能式断路器(acb)合闸能量分配的分析方法以提高ACB合闸可靠性和机构动作的协调性能。
An analysis method of closing energy distribution of air circuit breaker (ACB) was proposed to improve the closing reliability and coordination capability.
试验表明，该新型HCB具有合闸和分闸动作的快速性、一致性及限压限弧特性。
The analysis and the laboratory tests prove that the HCB has the performance of fast operating, consistency and arc limiting, retaining the static state of the mechanical 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.
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
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