控制元件

The model has the following features: 1 The security information provided by the assessment result is more dependable because of the consideration of some main uncertain factors; 2 The improved analytic method of power system DSR and the dynamic equivalent technologies are applied to reduce the computing time and to make the model more practical; 3 Step-up assessment strategy is adopted in order to balance the precision and computing time requirements; 4 Decompounding of system insecurity indexes to each system component, or to each generator and consumer, and the visualization of assessment results, will help the operators to understand the security status of the power system more clearly; 5 The assessment results can be beneficial to the preventive control in traditional power systems and the security pricing in power market environments.

模型具有如下特点： 1由于综合考虑了一些不确定因素对系统安全性的影响，使得评估结果更加可靠； 2采用求解电力系统动态安全域的改进解析法，结合动态降维技术，大大减少了动态安全域的计算时间，使得模型比较实用； 3采取逐步递进的评估策略，以适应计算精度和计算时间要求； 4可定量分解出各元件或各发电与用户对系统不安全的贡献，配以形象直观的评估结果显示，使操作人员清楚了解系统的安全状况； 5评估结果在传统电力系统可帮助制定预防控制措施，在电力市场可用于安全性定价。

A7800 Features: 10 Mb s Manchester encoding decoding with receive clock recovery Patented digital phase locked loop decoder re- quires no precision external components Decodes Manchester data with up to g18 ns of jitter Loopback capability for diagnostics Externally selectable half or full step modes of opera- tion at transmit output Squelch circuits at the receive and collision inputs re- ject noise High voltage protection at transceiver interface (16V) TTL MOS compatible controller interface Connects directly to the transceiver cable A7800 Maximum Ratings: A7800 Pinout:· NPT IGBT technology · low saturation voltage · low switching losses · switching frequency up to 30 kHz · square RBSOA, no latch up · high short circuit capability · positive temperature coefficient for easy parallelling · MOS input, voltage controlled · ultra fast free wheeling diodes · solderable pins for PCB mounting · package with copper base plate

A7800特点： 10兆s曼彻斯特编码与接收时钟恢复专利解码数字锁相环解码器重新奎雷斯没有精确数据的外部元件曼彻斯特解码高达全部G18抖动纳秒环回功能用于诊断外部可选的一半或整步模式的歌剧和灰在传输和接收碰撞投入重新ject高噪音在收发器接口（16V的）马鞍山的TTL兼容控制器接口电压保护输出静噪电路直接连接到收发器的电缆 A7800最大额定值： A7800引脚说明：·不扩散核武器条约IGBT技术·低饱和电压·低开关损耗·开关频率可达30千赫·平方米RBSOA，没有锁定了高短路能力··正温度，便于parallelling·马鞍山消耗系数，电压控制·超高速免费·印刷电路板焊接的引脚安装·铜底板包续流二极管

C Short-circuited of any control limits the temperature during the test 1, 2

上述1 和2 测试时控制温升的温控元件短路。

Key processes contain discharging remnants, swilling with water, swilling with disinfectant, swilling

机架、电气控制箱、电磁阀、气动元件、气冲系统和水路系统组成。

ABSTRACT The relay is one of key components widely used in automatic control system, telecontrol and telemetering system, and communication...

继电器是自动控制系统、遥控遥测系统及通信系统中的关键元件之一，研究继电器的可靠性对提高系统可靠性有重要意义。

ABSTRACT The relay is one of key components widely used in automatic control system, telecontrol and telemetering system, and communication system. Thus, the research on the reliability of relay may improve the reliability of there above system.

继电器是自动控制系统、遥控遥测系统及通信系统中的关键元件之一，研究继电器的可靠性对提高系统可靠性有重要意义。

Its subject coverage includes: boiling water reactors, light water reactors, heavy water reactors, and pressurized water reactors; steam generator tubing; fuel elements; prediction, detection, monitoring, and control; radiation effects; and stainless steels, zirconium alloys, inconels, and admiralty brass.

它的主题报导包括：沸水反应堆、轻水反应堆、重水反应堆与压水反应堆；蒸汽发生器浴盆；释热元件；预报、探测、监测和控制；辐射作用；不锈钢、锆合金、铬镍铁合金与船用黄铜。

The hydraulic poppet valve is one of the most important component in the hydraulic transmission and control, whose characteristics of the inner flow field directly influents the valve s performance, especially the moving valve cone.

液压锥阀是流体传动与控制技术中重要的基础元件，锥阀内的流场特性直接影响阀的性能，特别是锥阀阀芯在运动过程中的流动特性对阀的工作性能有很大的影响。

Self-control refrigeration components such as expansion valves, electromagnetic valve and high-voltage switch, and contactor and controller all adopt high quality products imported from the Europe and US, featuring reliable performance and precise control.

膨胀阀、电磁阀、高低压开关等制冷自控元件及接触器、控制器均采用欧美日高品质产品，性能安全可靠，控制精确有效。

The load cell on the die holder measures the pulling tension to which the strand is subject for accurate control; this value is displayed and recorded.

为精确控制，模座上的测压元件测量支配裸绞线的拉力，该数值被显示和记录。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。