某变电所内低压配电柜电气系统设计

文档编号:DQ082   文档字数:18764,页数:32

摘  要
 随着经济的发展，人们使用电的需求增加，这要更加增加了供配电安全的要求。电力是不可存储的资源，供应量就是使用量。在有限资源和环保严格的制约下发展经济、提高现有资源的利用率已成为全球最重要的话题，在电力系统中，如何使电力工业向高效、环保、可持续发展已成为世界各国电力工业发展的目标。配电柜的使用范围越来越广泛，在公共场所比如娱乐设施，公共灯光设施，甚至是旅游观光点里面都使用到该设备。配电柜能用于分片配置电源 ；当线路出现故障时，有利于控制故障范围也方便快速找出故障点及时加以排除 ；便于分片安排线路检修，而无须大面积的停电；配电柜内方便放置各种保护设备如防止短路的熔断器，防止过载的空气开关等。同时，随着其他能源的减少，电的使用量明显增多。本文主要介绍了配电柜电气系统的设计。

关键词：配电柜、电气系统、电力、资源
 
 
Abstract
 With economic development, the use of the increased demand for electricity, which increased to more safety requirements for power distribution. Power is stored in resources, the supply is to use. Limited resources and environmental protection under the strict constraints of developing the economy and improving the utilization of existing resources has become the world's most important topics in power system, how to make the power industry to the high efficiency, environmental protection, sustainable development has become the world power industry development. Cabinet distribution widespread use in public places such as recreational facilities, public lighting facilities, and even tourist spots which are used to the device. Distribution cabinet can be used to configure the piecewise power; when the electricity cables, it is beneficial to control the scope of failure to identify trouble spots quickly and easily be ruled out in time; arrangements to facilitate slicing line maintenance without the need of large-area power failure; distribution placed inside a variety of convenience equipment, such as the protection of the fuse to prevent short-circuit to prevent overload, such as the air switch. At the same time, with the reduction of other energy sources, electricity usage increased. This paper mainly introduces the electrical power distribution system design cabinet.
Keywords：Distribution cabinets、 electrical systems、 electric powers、resources

目 录
摘要……………………………………………………………………………. . .……………..Ⅱ
1 前言…………………………………………………………………………………………..1
2 总体设计方案……………………………………………………………………………. . .2
2.1  系统总体结构…………………………………………………………………….……2
2.2  系统结构特点…………………………………………………………………………..3
2.3  系统的组成……………………………………………………………………….…….5
2.4  系统结构要求………………………………………………….……….………………6
2.5系统应用软件的基本要求………………………………………………….……………6
3  配电柜的设计……………………………………………………………………………..7
 3.1  配电柜的简介及分类………………………………………………………………..7
 3.2  配电柜的组成及系统图……………………………………………………………..8
 3.3 配电柜的主要器件及原理 ……………………………………………………..8
 3.4 配电柜的安装…………………………………………………………………………..9
 3.5 负荷分类………………………………………………………….……………………….…..12
 3.6 负荷计算……………..………………………………………………………..………………12
 3.7额定电流及尖峰电流计算…………………………………………….………………………13
 3.8柜设计中需要注意的问题……………………………………………….……………………14
4  电气系统设计……………………………………………………………………………..15
    4.1 设计要求………………………………………………………………………………15
    4.2 系统的构成……………………………………………………………………………..16
 4.3 系统的主要功能………………………………………………………………………..16
 4.4 逼真动态的人机界面…………………………………………………………………..18
 4.5 报警记录及报告生成……………………………………………………………….…18
 4.6 上位机软件………………………………………………………………….…….….18
 4.7系统接地及避雷方案………………………………………………………….…….….18
 4.8 系统的可扩展性……………………………………………………………….…….….18
5  电气系统设计所遇到的若干问题 …………………………………………………20
 5.1电气的安全保护……………………………………………………………….…….…20
 5.2电气系统的节能措施………………………………………………………….…….….22
 5.3负荷的计算方法……………………………………………………………….…….….24
 5.4防雷及过电压保护…………………………………………………………….…….….25
 5.5 系统接地装置……………………………………………………………….…….….25
6  总结……………………………………………………………………………………….26
致谢…………………………………………………………………………………………...27

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