查询词典 power supply

The protection relay is a foundation of guaranteeing power supply reliability and plays a very important role in the power system.

保护继电器在电力系统中起着非常重要的作用，是保证供电可靠性的基础。

Based upon the practical situation against harm bird fault in the power network of Xiangfan Power Supply Bureau,this paper introduced the characteristic of the bird harm fault,and analyzed its trip reasons and presented its integrated prevention method such as the installation of the sound arouser,composite sheds,repelling board,shield,sting,net,etc.

结合襄樊供电局所辖线路防止鸟害的实际，介绍了鸟害的特点，分析了鸟害跳闸的原因，提出了安装惊鸟器、复合伞裙、防鸟挡板、防鸟罩、防鸟剌和防鸟网的综合防止鸟害措施。

The characteristics of high frequency switch power supply are analyzed. The problems in its application on audio frequency power amplifier and the main methods to solve them are pointed out.

分析了高频开关电源的特点及将其应用到音频功率放大器中所遇到的主要问题，以及解决这些问题的基本方法。

The outlook of high frequency switch power supply in application to high fidelity audio frequency power amplifier is indicated.

指出了高频开关电源在高保真音频功率放大器中广阔的应用前景。

The hot-plug power system comprises a backplate equipped with a power supply which is in plugging connection with the backplate, a management module of a detecting unit and an enabling unit and a service module in plugging connection with the backplate; the detecting unit is used to detect whether the service module is stably plugged into the backplate, and if yes, the enabling unit outputs a valid enabling signal to the service module and order the service module to be powered.

热插上电系统包括设置有电源的背板、与背板接插连接，包括检测单元和使能单元的管理模块、和与背板接插连接的业务模块；检测单元用于检测业务模块是否稳定插入背板，当背板稳定插入背板时，使能单元输出有效的使能信号至业务模块，指示业务模块上电。

Bistable circuit is the active devices need power to work, as long as the power supply normal, long-term stability can save information, so called static memory.

双稳态电路是有源器件，需要电源才能工作，只要电源正常，就能长期稳定的保存信息，所以称为静态存储器。

The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e.g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined.The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.

本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。

May pan-apply in the countryside, the countryside ecology vegetables big awning, the pastoral area, the island and the border defense sentry post, and other electric power supply not normal area or radio local illumination, domestic electric appliances and power tool's using electricity.

可以泛应用于农村、农村生态蔬菜大棚、牧区、海岛和边防哨卡，及其他电力供应不正常地区或无电地区的照明、家用电器和电动工具的用电。

Special symmetrical design enables the cable to be used as power supply or branch line in industrial power distribution system.

特殊的对称结构设计，可用于工业配电系统的馈电和分支线路。

Based on hazard analysis of using elevator to evacuate, improving measures are proposed from the self-safety of elevators, air supply, elevator partition and power supply. Finally, the safety and rationality of the model is studied. The result indicates that it is feasible to use elevators for evacuation during the initial stage of high-rise building fire.

针对火灾时使用电梯的主要危害，提出从电梯及电梯井本身的安全、送风、电梯分区及供电保障4方面的改进措施，并对火灾初期利用电梯进行人员疏散的安全合理性进行分析，结果表明在火灾初期利用电梯进行人员疏散具有一定的可行性。

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。