查询词典 power function

KYN28-12 metal-clad enclosed switchgear is suitable for 3-phase AC 50Hz/7.2-12kV single bus bar and single bus bar section electric power system.,with the function of "five preventions".

KYN28-12铠装式金属封闭开关设备（以下简称KYN28-12开关柜）适用于三相交流50Hz、7.2~12kV单母线及单母线分段电力系统，具有&五防&功能。

The paper has mainly introduced the fuses equipment and their function of the electric equipment 6502. Analysis and discussion on selecting the protective fuses for each grade in the three have been performed. The theoretical analysis and field surveying have concluded that the capacity of the fuses of the first grade should be selected by the capacity of the power screen, the mid-value method should be adopted in capacity selecting of the fuses in the 2nd grade and the 3rd grade fuses should be ensured by the maximum loads current.

详细介绍了6502电气集中设备熔断器的设备和作用，并对三级防护的各级防护熔断器的选择进行了逐级分析和探讨，理论分析和现场实测认为：第一级熔断器的容量按电源屏容量要求选择；第二级熔断器的容量选择采用中值法；第三级熔断器则根据最大负载电流来确定。

Cooperating to the modularize design of the system, the control function was divided into several threads to enhance the ability of real-time and harmony, and it realized the remote controlling high power system by low one effectively.

配合系统的模块化设计，采用多线程工作模式，对计算机系统的控制功能进行工作线程划分，提高了系统的实时性和协调性。

Facing the requirement of detecting CO gas density in public place＇s and related workrooms produced by hygiene epidemic prevention and labor hygiene protection departments, this paper gives a kind of design scheme of low power consumption of CO gas density monitor with GSM short messages receiving and transmitting function.

针对卫生防疫和劳动卫生保护部门对公共场所及有关生产车间CO气体浓度监测要求，给出了一种具有GSM短消息收发功能的低功耗CO气体浓度监测仪设计方案，降低了监测仪功耗的同时，也延长了电池的供电周期。

The direct-current type spot welder,the circular telegram time is short,the cementing stable scope is broad,the formula memory function numerical code control spot welding power source,the single plane can correspond many kinds of weldings.

直流点焊机，通电时间短，溶接稳定范围广，各式记忆功能数码控制点焊电源，单机能对应多种材料焊接。

The function of neutral line in Y connection of asymmetric loads;2. The quality of the neutral line and its grounding will influence directly to the operation of the combined hi-frequency switching mode power supply.

交流供电线路中的中线及中线接地质量的好坏，对通信用高频开关组合电源的工作有直接影响，实际应用中经常出现因中线及中线接地故障造成设备损坏，因此需加强对中线的维护。

After years of research, direct method using transient energy function of power system has gotten important development, and has become the main method of time-fiend analysis. In chapter 2, basic theories of TEF method are introduced, and the EEAC method and its application in stability generator tripping control are discussed carefully. A lot of work still need to be done in order to make practical achievement.As a way to actualize this scheme, a new intelligent style under frequency and

多机系统频率动态过程是低频减载方案设计的重要依据，本文在原有线性化扰动模型基础之上，增加了发电机和负荷频率调节效应的影响，并进行了系统仿真研究**同时根据多机模型特点及仿真结果提出了一种基于多机系统的低频减载设计和整定新方案，与传统方案相比，该方案提高了低频减载性能及系统运行方式的适应性

In terms of each of these essentials, Lyapunov direct methods, transient energy function methods and extended equal-area criterion are critically compared in this four-part paper. This reveals the essence causes for why both Lyapunov direct methods and TEF methods cannot be applied to transient stability analysis of power systems.

由4篇短文组成的系列文章按照上述各要素，讨论了针对平衡点稳定性的李雅普诺夫法、将平衡点稳定性理论应用于有界稳定性的暂态能量函数法以及针对有界稳定性的扩展等面积准则这3种稳定性理论在大扰动稳定性分析中的应用。

The article is based on the now-being general radio module, using AT89S52 microcontroller to control the radio, by 1602 for liquid crystal display modules, with TEA5767 the high sensitivity, low voltage and low power consumption of all the advantages of integrated chips for the radio module. the reliability is improved and the feeling of comfort is better through the reasonable design, so the function of radio is more powerful compared with tradition one .

本文在已有的收音机模块的基础上，采用AT89S52微控制器对收音机进行控制，由 1602液晶模块作显示，用TEA5767的高灵敏度，低电压和低功耗的全集成的优点作收音模块芯片，通过合理设计，制作了一款完善的数字调谐收音机，并增加了传统收音机所不具备的功能，使之达到了较为理想的效果。

Memory Function, Press "Play / Pause" button to suspended before shuting off power for shut it under suspension state, machine can have position memory automaticlly of this broadcast and enter relative programs to continue recitations.

记忆功能：关机前先按&播放/暂停&键至暂停状态，在暂停状态下关机，机器就自动记忆本次播放内容的位置，下次开机后进入相应的书目，会接着上次播放的内容，继续播诵。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。