查询词典 vacuum breaker

Aimed at the problem of vacuum tube s working in vacuum switch applied in coal mines, the reasons and results of air escape taking place in vacuum tube s,a modified step is adopted to set up a protection unit for vacuum tube in vacuum switch.

针对真空开关在煤矿推广应用中真空管存在的问题，以及一旦漏气造成的后果和原因进行了分析，提出改进措施，并对在真空开关增加真空管的保护装置进行了探讨。

Constitutes and characters of each system above are as follow: vacuum system is composed of oil diffusion pump, fore-vacuum pump, vacuum pipeline, vacuum valve, and electromagnetic valve etc. There are some advantages of high pumping speeds and pollution-resistant. Heating system is composed of heat insulation barrier all made of metal and pure metal heating element, characterized as applicable for vacuum environment, high heating velocity, high heating temperature.

上述各系统的组成与特点如下：真空系统由油扩散泵、前级泵、真空管路、真空闸阀、电磁阀等组成，其特点抽速快，有一定的抗污染能力；加热系统由全金属隔热屏和纯金属加热元件组成，适用于真空环境，具有加热速度快，温度高等特点。

Constitutes and characters of each system above are as follow: vacuum system is composed of oil diffusion pump, fore-vacuum pump, vacuum pipeline, vacuum valve, and electromagnetic valve etc. Thereare some advantages of high pumping speeds and pollution-resistant. Heating system is composed of heat insulation barrier all made of metal and pure metal heating element, characterized as applicable for vacuum environment, high heating velocity, high heating temperature.

上述各系统的组成与特点如下：真空系统由油扩散泵、前级泵、真空管路、真空闸阀、电磁阀等组成，其特点抽速快，有一定的抗污染能力；加热系统由全金属隔热屏和纯金属加热元件组成，适用于真空环境，具有加热速度快，温度高等特点。

It simulates the circuit breaker with a zero impedance branch, and adopts the linear network characteristic and theory, variable structure and variable parameter analyses to transfer the short-circuit current flow in the bus-bar equality into each side of circuit breaker, and deduces the sequence component model and algorithm for calculating the short-circuit current of circuit breaker when the short-circuit fault occu...

该方法将断路器作为一条阻抗为零的支路来模拟，运用线性网络特性、定理及变结构与变参数的分析方法，将母线上短路时的短路电流等值转移到断路器两侧，导出了相当于在断路器两侧分别发生短路故障时，流过断路器的短路电流的序分量模型和算法。

The low voltage breaker is composed of electric conducted system,extinguish-arc room, heat tripper and electric magnetism wink-moved mechanism.The functions of move mechanism directly impact the reliability of breaker's move. This topic is imported by using the exchange module of multibody dynamics simulation software automatic dynamic analysis of mechanical system,and then its movement was simulated by applying ADAMS,with the design and the optimization of DW16 Low-voltage breaker's ususal mechanical movement.

摘 要：低压断路器由导电系统、灭弧室、热脱扣器和电磁式瞬动机构组成，其中操动机构的性能直接关系断路器动作的可靠性，本课题利用Pro/E对操动机构进行三维实体造型，然后将利用多体动力学仿真软件ADAMS进行仿真，完成对DW16型低压断路器的常用操动机构的设计和优化。

Air Circuit Breaker An air circuit breaker automatically interrupts the current flowing through it when the current exceeds the trip rating of the breaker.

空气线路断路器空气线路断路器的功能是当电流大小超过断路器的过流跳脱设定值后自动断开。

Aiming at fault of operating cycles counters of LW10B-252 circuit breaker in certain substation,it was proposed that the fault counters were found by using counters loop air circuit breaker to simulate motion of circuit breaker when the counters loop in good connection.

针对某变电站LW10B-252型断路器动作计数器故障问题，提出在该计数器回路接线良好条件下，采用其回路的空气开关模拟断路器动作的试验方法查找故障计数器。

The paper grounds on a design and development automation project of universal air circuit breaker of a low-voltage electrical plant in Jiangsu, and according to the enterprise's demand mainly researches development and re-design of the original circuit breaker for the problems of unperfect function, inconvenient setting operatin and unfriendly man-machine interfaces, and researches how to keep reliability of the breaker, increase the level of automation and intelligence and simultaneously reduce the product cost as far as possible. So, this paper has certain practical significance and application prospect. Among this subject, the intelligent controller regards MSP430 MCU which TI Company produces and CPLD as the key procsssor.

本文依托江苏某低压电器厂的万能式空气断路器的自动化设计开发项目，根据企业需求，针对原断路器功能单一，整定不方便，人机界面不友好，产品档次低等问题进行改造和重新设计，在保证断路器工作可靠性的同时，按企业要求进一步完善保护功能，提高断路器的自动化程度和智能化程度，同时尽可能降低产品成本，因此本文的研究内容具有一定的现实意义和应用前景。

Circuit resistance of breaker is one of the most important parameters which determine the quality of breaker. It can directly affect the temperature rising when the rated current passes through breaker and the moving thermal stability at the over loading moment.

断路器导电回路电阻是标志断路器质量的主要参数之一，其值的大小直接影响到断路器通载额定工作电流时的温升以及短路状态下的动热稳定性。

Our company has manufactured the tester and automatic assembly line for Mini Circuit Breaker, moulded case circuit breaker, frame circuit breaker, AC contactor, time relay, thermal relay, protector, leakage protector, Explosion-proof, UL Authentication specialization equipment, HV/LV complete sets, Fuse, Button indicator,Air operated part etc. for 19years, passing through ISO9001 Quality Management System Authentication firstly in 2002 and has been evaluated as the advanced unit many times.

我们浙江永光检测设备有限公司专项供应小型断路器、塑壳断路器、框架断路器、交流接触器、时间继电器、热继电器、保护器、漏电保护器、防爆电器、UL认证专用设备，高、低压成套电器、容断器、按钮指示灯、气动元件等检测设备、试验设备、自动化流水线设备、校验台专业19年，2002年通过ISO9001质量管理体系认证并多次被评为先进单位。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。