断路器

These circuit breakers are fitted with an auto-reclosure, this means that they open automatically due to a fault, after a short delay they will reclose in an attempt to restore the supply.

这些断路器装有自动重合闸，这意味着他们自动打开，由于发生故障，在短暂的延迟后，他们将重合闸在试图恢复供应。

Breaker close,open and recramp by turning the handle.

旋转手柄实现塑壳断路器的合闸、分闸和再扣。

For switching capacitances group overvoltage, vacuum circuit breaker refining technics requires strengthening, and chamber reignition probability might be confined in minimum extension.

为减小开断电容器组过电压的危害，应加强真空断路器的老炼工艺，将灭弧室的重击穿概率限制在最小的范围内。

For switching capacitancesgroup overvoltage,vacuum circuit breaker refining technics requires strengthening,andchamber reignition probability might be confined in minimum extension.

为减小开断电容器组过电压的危害，应加强真空断路器的老炼工艺，将灭弧室的重击穿概率限制在最小的范围内。

In the paper,vacuum circuit breaker switchingtransformers process is simulated with Saber software and parameters are analyzed Theresults indicate that overvoltage peak value of switching no load transformers is not muchhigh,especially for switching load transformers.Yet,reignition overvoltage might doharm to transformer coils by cumulative effects for its surge steepness.The measures liesin setting parallel connection capacitance in practice working.

本文利用Saber仿真软件对真空断路器切除变压器的一个完整过程进行了仿真计算，并详细分析了各种参数对过电压的影响，结果表明，尽管实际中切除空载变压器过电压的幅值并不是很高，特别是带负载变压器的情况，但重燃过电压的陡度较大，对变压器绕组的纵绝缘有累积作用，在实际工作中应以并联电容为基础的限压装置。

A resettable rear-panel circuit breaker protects all connected equipment up to an 8-Ampere load.

后面板上配有一个可再设定的断路器，能有效地保护设备，总负载高达 8 安培。

The breaker crust made of this material had good flame retardance and electrical insulation,and its quality was reco.

结果表明，该材料具有较高的力学性能、电绝缘性能和阻燃性能；用该材料制备的断路器外壳具有较好的阻燃性能及电绝缘性能，产品质量得到了客户认可。

Unit 22 400vac low voltage distribution pen busbar unit 22 400vac low voltage distribution cubicle lighting.plug and heating unit 22 400vac low voltage distribution measuring and ac-distribution unit 22 400vac low voltage distribution 220vdc control2 unit 22 400vac low voltage distribution control circuit breaker unit 22 400vac low voltage distribution automatic interconnection2 unit 22 device list unit 22 400vac low voltage distribution cubicle lighting.plug anh heating unit 22 400vac low voltage distribution ac/dc supply control unit 22 400vac low voltage distribution cb supply 1 control unit 22 400vac low voltage distribution cb coupling control unit 22 400vac low voltage distribution cb supply 2 control unit 22 400vac low voltage distribution cb supply 1 control unit 22 400vac low voltage distribution control unit 22 400vac low voltage distribution high pressure pump.bearing de control unit 22 400vac low voltage distribution stillstand heaters control control unit 22 400vac low voltage distribution oil mist suction device de control unit 22 400vac low voltage distribution h press pu.bearing de stand-by control unit 22 400vac low voltage distribution oil mist suction device nde control unit 22 400vac low voltage distribution indication unit 22 400vac low voltage distribution automatik input unit 22 400vac low voltage distribution circuit diageam unit…400vac low voltage distribution front view unit…400vac low voltage distribution inside view unit…400vac low voltage distribution cubicle view gauge board cover sheet gauge board front view gauge board inside layout gauge board fower supply gauge board cubicle lighting/heating gauge board 24vdc distributidn gauge board fault indication lamps gauge board fault messages to control gauge board temperatures thrust bearing gauge board temperatures de/nde guiide bearing gauge board temperatures de/nde bearing oil reservoir gauge board temperatures cold air from coolers gauge board display temperatures cooler 1-10 gauge board display temperatures cooler 11-20 gauge board temperatures hot air from coolers gauge board display tem.

单位 22 400 vac 低的电压分配钢笔 busbar单位 22 400 vac 低的电压分配小卧室 lighting.plug 和暖气单位 22 400 vac 低的电压分配测定和 ac-分配单位 22 400 vac 低的电压分配 220 vdc control2单位 22 400 vac 低的电压分配控制线路断路器单位 22 400 vac 低的电压分配自动机械 interconnection2单位 22本装置目录单位 22 400 vac 低的电压分配小卧室 lighting.plug anh 暖气单位 22 400 vac 低的电压分配 ac/直流补给控制单位 22 400 vac 低的电压分配 cb 补给 1 控制单位 22 400 vac 低的电压分配 cb 联结控制单位 22 400 vac 低的电压分配 cb 补给 2 控制单位 22 400 vac 低的电压分配 cb 补给 1 控制单位 22 400 vac 低的电压分配控制单位 22 400 vac 低的电压分配高度强迫 pump.bearing de 控制单位 22 400 vac 低的电压分配 stillstand 加热器控制控制单位 22 400 vac 低的电压分配油雾吸装置 de 控制单位 22 400 vac 低的电压分配 h 杂志报纸 pu.bearing de 台子-被控制单位 22 400 vac 低的电压分配油雾吸装置 nde 控制单位 22 400 vac 低的电压分配指示单位 22 400 vac 低的电压分配 automatik 输入单位 22 400 vac 低的电压分配线路 diageam单位…400休假低的电压分配前面视野单位…400休假低的电压分配内部看单位…400休假低的电压分配小卧室视野精确计量董事会掩护张精确计量董事会比较前面的视野标准度量在地面区划之内搭乘标准度量董事会 fower 补给标准度量董事会小卧室照明/暖气标准度量董事会 24 vdc distributidn标准度量董事会过失指示灯精确计量董事会过失信息控制标准度量董事会温度插入了举止标准度量董事会温度 de/ nde guiide 举止生的标准度量董事会温度 de/ nde 涂油水于水库标准度量董事会来自冷却器的温度冷空气精确计量董事会展览温度冷却器 1-10精确计量董事会展览温度冷却器 11-20标准度量董事会来自冷却器的温度热气精确计量董事会展览 tem。

The work in the paper is useful and significant for busbar trunking factory as well as brings new idea to deal with pre-process in low voltage breaker simulation calculation system.

本文的工作对于母线槽工业生产中的施工设计具有积极的意义，同时也为低压断路器仿真计算的前处理提供了一种新的解决方法。

However, in electric field computation, the BEM has not much unfould and most of them are limited in the conventional BEM. In the flow field computation, although some achievements have been gained in solving the constant and uncompressible fluid flow by using BEM, but to the inconstant, compressible, nonlinear, transonic flow, such as the flow in the arc quenching chamber in SF6 high voltage circuit breaker, no any report has been published up to now for the reason that the basic solution of this kind of flow has not been found.

目前，在电场计算领域所开展的工作相对较少，而且仅限于传统边界元方法的应用；在计算流体力学领域，近年来虽然一些学者应用边界元法，在解决定常、不可压缩等问题进行了相当深入的研究，获得了若干研究成果，但是对于像SF_6高压断路器灭弧室中存在的非定常、可压缩、非线性、跨音速、具有复杂而且变边界的气流场由于至今尚未找到基本解，而未见研究工作的报道。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐