电能

They include the increasement of reliability and reduction of consumption of electrical energy to satisfy the requirement of industry control process.

这些要求包括增加可靠性、降低电能消耗，减少维护费用和满足工业过程复杂的任务要求。

Traditional three phase three legsinverter can provide relative good performance. However it will be ineffectivewhen it is connected to non-linear unbalanced loads which are often used invital occasion such as military, bank, hospital and so on.

传统的三相三桥臂逆变器虽然能提供较大功率，但是由于非线性不平衡负载的普遍存在，而且这些非线性不平衡负载往往出现在非常重要的场合，如：军事、银行、医院等要求电能质量很高的领域，此时传统的三相三桥臂逆变器显得无能为力。

The KEB COMBIVERT R6 power supply and line regeneration control is a newly developed solution to efficiently return the energy to the utility.

更高效地利用电气和机械系统能够减少机器和系统的损耗。降低这些高效系统操作，电机运作就像发电机，将更多的机械能转化成电能。

For a mobile device this would mean that a mentionable part of the energy is used for heating!

对于移动设备而言，这意味着有部分电能将消耗于发热。

This article introduces the technical principle and the application of monophase prefabricated substation, analyses the technical characteristic of the product and raises some practical problems that should be considered in order that the power loss can be reduced and the reliability of power supply can be increased further.

介绍了单相箱变的技术原理及其应用，分析了该产品的技术特点，提出了在使用中应注意的问题，以进一步降低电能损耗，提高供电可靠性。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

The current thesis designs an original refrigerator, the dry ice refrigerator. Having substituted the traditional refrigeration cycle, it has many advantages over the traditional refrigerator such as noiselessness, nearly no electric energy consumption, wide sources of CO2 gas, and low costs etc..

本文设计制作了干冰冰箱这一新的冰箱型式，它取代了传统的制冷循环，具有无噪音、几乎不消耗电能、二氧化碳气体来源广、成本低等一系列传统电冰箱所无法比拟的优势。

First, from the point of view of production and management, the importance for developing TTU is pointed out.the status in quo of technology,The direction of progress,The demand of practical and fundamentality in Distribution Automation are analyzed for Transformer Terminal Unit. The function of equipment and technical specification which meet demand of practical duty are indicated; Second, the scheme of synchronous sampling,quasi-synchronous sampling,non-integer cycle sampling,nonsynchronous sampling and algorithm are analyzed in detail. Then,the scheme of nonsynchronous sampling and multi-chunnel is ascertained. Moreover, the method of disposal sampling data for increasing precision which calculate the number of sampling per cycle dramatic by searching zero is introduced. The technique for analyzing data,stating data,storage data for Electrical Power Quality and control scheme for compensation capacitor are explained also. Finally, The scheme and structure of hardware,key circuitry using 80C196 singlechip,the scheme and ideology of software and flow chart of part software is introduced simply.

文中首先从电力生产、管理角度出发，指出了研制配变监测终端的重要意义，分析了配变监测终端的技术现状、发展趋势、现场需求以及在配网自动化中的基础地位，提出了满足实际运行要求的装置功能、技术要求；然后对目前常用的同步采样、准同步采样、非整周期采样、非同步采样的方案和算法进行了详细的分析、比较、筛选，确定了非同步采样和顺序采样的方案，并提出了一种寻找过零点从而动态计算每周采样点数的提高精度的采样数据处理方法，文中对装置中电能质量分析、统计、存储的方法以及补偿电容器的控制方案和投切原则也做了重点说明；最后，对应用80C196单片机系统研制的装置的硬件方案、结构以及关键电路和软件设计思路、方案、部分主要软件模块的流程图做了介绍。

Converteam 's outsting know-how expertise in power conversion reflects a histy of over 100 years of excellence in electrical technology serving international markets.

科孚德在电能技术转换及相关服务领域的卓越表现要追溯到100多年以前。

ower quality is getting of more importance with the rapid development of national economy. Closer attention is paid to power quality by both electric industry and customers.

摘 要：电能质量的重要性随着国民经济的快速发展而不断增强，并日益受到电力部门和消费者的重视。

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。