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- Abstract: The processing principle and the experiment system and results of arc-remelting for the contact material of vacuum switches are described in this paper. 本文介绍了真空开关触头材料电弧重熔工艺原理和电弧重熔系统及实验结果。
- When vacuum switches switch off shunt capacitors, restriking overvoltage may be brought about which will threaten insulation of equipments severely. 摘要真空开关在开断并联电容器组时可能产生重击穿过电压，对设备绝缘造成严重威胁。
- Vacuum switch which uses the new type permanent magnetic actuator (PMA), has much higher operating accuracy and reliability. 摘要真空开关利用新型的永磁机构作为操动系统，具有较高的操作精度与可靠性。
- Exchange non-clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard,vacuum switch etc. 交流无间隙金属氧化物避雷器，适用于变压器、配电屏、开关柜、真空开关、输电线路、电力计量箱、并联补偿电容器、旋转电机等电压保护。
- The basic structure and operating process of the surface-flashover triggered vacuum switch(TVS) were depicted. 介绍了沿面击穿型触发真空开关的基本结构和工作过程。
- There are intrelocks between isolating switch、vacuum switch and earth switch to avoid misoperating. 隔离开关、真空开关、接地开关之间互相联锁，以防止误操作。
- The vacuum degree within the vacuum interrupter will have the direct effect upon the properties of vacuum switch. 真空灭弧室内真空度将直接影响真空开关的性能。
- The decaying gas pressure in arc extinguish chamber will cause the supply voltage to be beyond the endurance of a vacuum switch. 本文利用自行开发的电场探头研究了真空开关屏蔽罩电位的有效值与真空度之间的关系,得出了相应曲线。
- When vacuum switches switch off shunt capacitors and HV motors, restriking overvoltage and multi-reburning overvoltage may be brought about and threaten insulation of equipments severely. 真空开关在开断并联电容器组和高压电动机时可能产生重击穿过电压和多次重燃过电压，对设备绝缘造成严重威胁。
- This paper introduces aresearch on optimal characteristicsof contact material used in vacuum switches by the Technical University of Braunschweig and gives an analysis on their results. 本文介绍德国Braunschweig工业大学对真空断路器触头材料性能的优化问题所作的研究,文中,作者对他们的研究结果作了适当的分析和评论。
- It is used in overvoltage such as restrictive transformer, capacitor, electric machinery, vacuum switch, transformer neutral point sealed electrical instruments and cable. 适用于配电、变电系统中,限制可能出现的各种过电压,以保证输变电设备的安全运行。
- The development tendency of vacuum switch in the future is to miniaturize vacuum extinction chamber and develop high voltage vacuum switch and low voltage vacuum switch. 今后,真空开关的发展趋势是真空灭弧室向小型化发展、真空开关向高电压等级和低电压等级发展。
- Vacuum interrupter is the heart of a vacuum switch, and its withstand ability under high voltage determines directly the main functions of the whole vacuum switch. 真空灭弧室是真空开关的心脏，其耐压特性直接决定着真空开关的性能。
- The resistance products have various types, and are for different lightning arrester, restrictive transformer, capacitor, electric machinery, vacuum switch, transformer neutral point sealed electrical instruments, cable, and railway line overvoltage. 该电阻片具有多种规格型号,用于组装不同使用场所的避雷器,限制变压器、电容器、电机、真空开关、变压器中性点、全封闭电器、电缆、铁道线路的过电压。
- China is a vacuum interrupter and a vacuum switch the focus of equipment manufacturers, vacuum interrupter and vacuum circuit breakers for many years production and sales of domestic home front. 公司是我国真空灭弧室和真空开关设备的重点生产企业，真空灭弧室和真空断路器产销量连续多年居国内前列。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- The reform steps and working principle of the mechanical holding apparatus of low voltage vacuum switcher in KSGZY series mobile substation are introduced. 阐述了对KSGZY系列移动变电站低压侧真空馈电开关机械维持机构的改造方法以及改造后的工作原理。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- This button switches the current on. 这个电钮接通电流。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
