配电系统

Firstly, a simple introduction of the theory of the management information system and its development is given in this paper. The railway managing departments are tending to use more and more management information system to prove the working efficiency in our country. And the QingZang railway lies on the altiplano.

本文首先简要介绍了管理信息系统的概念和发展历史，结合铁路信息化的发展趋势，和青藏铁路地处高原、环境恶劣的特殊情况，阐述了对青藏铁路配电实现信息化管理，开发配电管理信息系统的必要性。

The article analyze the status in quo of the power distribution geographical information system, GIS and the subject of the entity in the meantime, describing the demand analysis, general layout, the module curtate, module of the power distribution geographical information system, GIS main function.

文章同时分析了配电地理信息系统的现状及存在的问题，描述了配电地理信息系统的需求分析、总体设计、模块划分、模块主要功能。

So how to plan the network configuration of communication system also becomes the vital part in DAS.

因此，如何规划配电自动化中的通信系统也成为配电自动化系统建设的重要组成部分。

The technical problems, about shortage of separation distance, the feasibility of high-rise polymerization factory building, the fire separation and explosion-proof design of polymerization factory building, the selecting and arrangement of water spraying extinguishing system nozzle, the establishment of deluge system valve, and the essentiality of water spraying extinguishing system which is to be established to protect the VCM gasholder, the positioning of water curtain settled under the space which connect the PVC pack house and pack department and how long the system continue operate? The selecting and the quantity of fire extinguishing agent about gas extinguishing system, which will be used in the new 35KV switch station and some rooms including cabinet room, primary control room, UPS room, voltage changer room, belong to new polymerization power panel and UPS station. Designing the model of power supply and distribution for fire-fighting and designing the hardware organization, software, model of data transmission and fire gang control logic programmer about automatic fire alarm system. Making certain the grade of release source point in the fire or explosive atmosphere and delimiting different grade explosion-proof space. Selecting correct explosion-proof construction of electrical apparatus and delimiting the class of building lightning protection, putting forth the concert steps to deal with thunder stroke and electrostatic discharge and so on, have been deeply researched in the process of designing and then the concert steps to deal with them have been putted forth.

针对设计中遇到的防火间距不足、聚合厂房可否采用高层厂房、聚合厂房的防火分隔和防爆设计、水喷雾灭火系统的喷头选型和布置、雨淋阀组设置、VCM气柜是否需要设置水喷雾灭火系统、PVC仓库与包装车间相通处水幕带的布置和系统工作时间的确定、新建35kV开关站和聚合配电及DCS机柜间内的机柜间、主控室、UPS间、变压器室等处设置的气体灭火系统选型和灭火剂用量确定、消防供配电方式、火灾自动报警系统的硬件结构、软件设计、数据传输方式及联动控制设计中的逻辑编程、爆炸和火灾危险环境危险释放源等级确定和防爆区域等级范围的划分、爆炸危险区域电气设备的防爆结构选型、建、构筑物的防雷类别划分及采取的防雷、防静电措施等具体工程技术问题在深入分析研究后，提出了相应的解决措施。

ABB's scope of supply also includes a new 400/220-kilovolt switchyard to supply the new smelter plant with reliable power, as well as a high-performance process control system with fiber optic current sensors, as well as an ABB MicroSCADA control system for the power distribution network , substation switching bays, power and station transformers.

ABB的供应范围还包括一个新的400/220千伏的配电装置，为新炼铝厂提供可靠的电力，以及一套具备光纤电流传感器的高性能过程控制系统，还有一套用于配电网络、变电站配电舱、电力和电站变压器的ABB MicroSCADA控制系统。

Be familiar with operation and management of 35KV substation and LV power system.

熟悉35KV变电所和中、低压工厂配电系统的运行管理。

The distinguishing features of the high/low-tension switch are: first, multi-variety and –model; second, large quantity in fixing and working; third, quick development; fourth, frequent operation.

高低压开关电器是发电、输电、变电、配电系统的重要控制和保护设备，其主要特点有：1、品种与型号多；2、安装与运行的数量大；3、发展快；4、操作频繁。

It analyzes its feature of using electricity from different aspects: electricity for daily use road construction、street and landscape lighting, and also gives the conclusion that box-typed transformer substation taking the place of old one is the effective way to deal with the supplying power for modern housing district through the analysis to the substation and the feature of new box-typed transformer substation, It also tells the meaning of choosing the correct section and length of low-tension wire and gives suggestions that some ideas about present design standard should be improved as the development of society by comparing the analysis to distribution system and comparison with the relative countries and areas.

阐述了现代住宅小区供电规划的依据，通过从生活用电、公建用电、道路照明及景观照明用电方面分析现代住宅小区用电的特点；通过对住宅小区内变电所的分析及现在新型箱式变电站的特点，得出新型箱式变电站取代老式变电所是解决住宅小区供电的有效措施；正确选择住宅小区内低压导线的截面和长度的意义；对室内配电系统的分析及于相关国家和地区的比较，目前的设计标准有些条款随着社会的发展应该及时完善的建议。

In the end of 2006. The general situation of these two companies, the characteristics of production management, operation and management of equipment, updating strategy of equipment, the requirements of government for distr...

主要对2家公司的概况、生产管理的特点、设备的运行管理、设备的更新策略、政府对配电系统的要求等方面进行了详细介绍。

Electrical safety in low voltage distribution systems up to 1 kV A.C. and 1,5 kV d.c.

1KV交流电和1.5KV直流电以下的低压配电系统中的电器安全性。

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。