合闸

Finite element method is used to calculate the electromagnetic field of permanent magnet actuator.

本文采用有限元方法计算永磁机构的磁场，分析静态特性，获得磁场分布、分合闸启动电流等参数。

The transient air gap magnetic fields under different conditions are also calculated and analyzed. The novel finite element method directly using magnetic induction as unknown variable has many advantage. It is analyzed theoretically in detail. Nonlinear eddy current field equations and finite element equations using magnetic induction as unknown variable are developed.

直线电机的磁场是一非均匀、非线性的涡流场，文中对非均匀磁场及材料的非线性进行了分析，提出了相应的解决办法，采用以向量磁位为求解量的传统有限元法，对不同合闸角下筒式复合次级圆筒型直线感应电机的瞬态特性进行了计算与试验分析，对不同条件下瞬态气隙磁场进行了研究。

Operation of MT/MTE - manual closing and opening - installation of accessories - setting of micrologic ?

MT，MTE 断路器操作-手动分合闸操作-附件安装-控制单元设定？

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.

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。

Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.

论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。

The low frequency digital phase reflectoscope reflector in the industrial field is the general measuring tool which uses frequently, for instance the electrical network incorporation switches on when the electrical power system, requests two electrical network's electrical signals to be the same, between this request precise survey two power frequency signal phase difference.

低频数字式相位测试仪在工业领域中是经常用到的一般测量工具，比如在电力系统中电网并网合闸时，要求两电网的电信号相同，这就要求精确的测量两工频信号之间的相位差。

Some hardwaretechnology such as GPS, Ethernet and embedded computer and somesoftware technology such as Object Oriented Programming are used in thesystem. The functions of sequence contfol, breaker"s trip and close at theprocess of protection simulating, evellt recorder and wave recorder withhigh resolation and algorithm validation are realized. The whole systemhas the character of reliability and simplicity."

该系统采用了全球定位系统、以太网络、数字信号处理器、嵌入式计算机等硬件技术以及面向对象编程的软件技术，可以实现模拟实验的序列控制、模拟保护的跳合闸控制、高分辨率的事件记录、波形记录及各种算法的实时仿真功能。

Then,to design the self burned out electric arc circuit breaker,conclued computing theparameter about burned out arc room , isolated constuction ,shuting up electric brake and shunt winding condenser,sealing up construction.

接着，对110kV自能吹弧式断路器进行设计，设计包括灭弧室各项参数的计算、绝缘结构的设计计算、合闸电阻及并联电容器的设计计算以及密封结构的设计计算。

The control technology of phase selection has been used on beakers instantaneous characteristic test device for Jiang Su Chang Shu Switch Plant.

此外，本文还介绍并分析了模糊综合评判的方法在交流电器选相分合闸控制中的应用。

The burn of circuit breaker closing coils and contactors is a common problem in the switchyard operates.

断路器控制回路的合闸线圈和接触器烧毁现象是变电运行工作中经常遇到的普遍问题。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。