曙光商业小区电气设计计算书.doc

1、曙光商业小区电气设计 摘要：随着社会的发展与进步, 以信息技术与建筑技术相结合的智能小区迅速地发展起来。智能小区的发展为人们提供更为便捷、高雅、舒适的居住环境，它不仅包括服务,空间展开,电子基础设施,缆线管理等一般服务, 更重要的是以建筑为平台，集结构，服务,管理，电气自动化及通信网络系统之间的最优化组合,向人们提供一个安全,高效,舒适,便利的居住环境。本次设计的变电站主要服务于一个新建商业办公区部分住宅。其供电的用户主要为区内的照明、动力、消防、风机等。用电区内有五层办公建筑四栋，二单元小高层两栋（共25层，设有电梯），本设计为变电站典型设计方案。本变电站共有两台变压器，两台互为备用。共有两

2、个电压等级：10KV和0.4KV。所处地理位置优越，能够充分保证用电的可靠性。变电站所在的气候状况、地质情况、海拔高度均属正常情况。小区附近无严重污染。故该变电站设计时不需要考虑特殊情况。关键词：负荷计算 继电保护 电气照明设计 弱电系统 供配电设计 Light commercial residential electrical designAbstract：With the development and progress of the society, with the combination of information technology and building intellige

3、nt village developed rapidly. Intelligent village development provide people with more convenient, elegant and comfortable living environment, it not only include services, space, electronic infrastructure, cable management, and other general service, more important is building platform, collection

4、structure, service, management, optimization combination between electrical automation system and communication network, to provide a safe, efficient, comfortable and convenient living environment. The design of substation main service in a new commercial office part of the house. The main power sup

5、ply users as area lighting, power, fire control, fan, etc. Electricity in office building four, five layer 2 unit small high-rise building two (a total of 25 layer, equipped with elevator), the typical design scheme design for substation, this scheme design according to indoor type unmanned switchin

6、g station.This substation into line, a total of two road as spare two way. A total of two voltage levels: 10 KV and 0.4 KV. The geographical position is superior, can fully guarantee the reliability of electricity. Substations climate, geology, altitude as normal. Village near no serious pollution.

7、So dont need to consider the special circumstances at the substation design.Keywords: load calculation; relay protection; electricity light to design; weak electricity system; power supply design;目 录 摘要1Abstract：2引言31 设计概况3 1.1 小区概况3 1.2 设计依据3 1.3 设计要求4 1.4 设计成果42 设计计算书4 2.1一般设计原则4 2.2负荷分析4 2.3负荷计算分

8、析5 2.2 负荷统计计算5 2.3主变压器选择的规范及原则7 2.4主变压器型号的确定8 2.5电气主接线方案的设计8 2.5.1电气主接线的基本形式9 2.5.2各接线的适用范围9 2.6无功功率计算及补偿9 2.6.1 电力电容接线方式9 2.7无功补偿容量10 2.8并联电容器的选择103短路电流计算11 3.1.1短路电流计算的目的11 3.1.2短路电流计算的一般规定12 3.1.3短路电流的计算步骤12 3.2低压一次设备的选择和校验134电气设备选择的一般条件14 4.1按正常工作条件选择14 4.2按短路情况校验155.变压器一次设备的选择与校验15 5.1 概述15 5.2

9、 高压一次设备的选择和校验15 5.3 低压一次设备的选择和校验17 5.4 设备选择汇总186 变电所继电保护设计19 6.1 概述19 6.2 变压器保护设置19 6.3 变电所10KV母线保护207.照明系统20 7.1电气照明概述20 7.2确定合适的光源21 7.3照明灯具的选择与布置21 7.4照度计算228弱电系统设计31 8.1 概述31 8.2 有线电视系统31 8.3 电话系统31 8.4 网络布线系统32 8.5 访客对讲系统329防雷和接地装置的确定32 9.1 概述32 9.2 变电所防雷接地系统设计32 9.3 单体楼的防雷接地系统设计33参考文献35致谢36Con

10、tentsdigest1Abstract：21 Design overview3 1.1 Community profile3 1.2 Design basis3 1.3The design requirements 4 1.4 Design results42 Design calculation4 2.1General design principles4 2.2Load analysis4 2.3Load calculation analysis5 2.2Load statistical computing 5 2.3The main transformer choice of norm

11、s and principles7 2.4The determination of the main transformer model8 2.5The main electrical wiring scheme design8 2.5.1The basic form of the main electrical wiring9 2.5.2All wiring of the scope of application9 2.6Reactive power calculation and compensation9 2.6.1Electric power capacitor connection

12、mode9 2.7Reactive power compensation capacity10 2.8The choice of the parallel capacitor103Short circuit current calculation11 3.1.1The purpose of short-circuit current calculation11 3.1.2The general provisions of short-circuit current calculation12 3.1.3The calculation of short-circuit current step1

13、2 3.2Low voltage equipment selection and calibration at a time134. Electrical equipment selection of general conditions14 4.1According to the normal working conditions to choose14 4.2According to the check short circuit situation155Transformer equipment selection and calibration at a time.15 5.1 Abs

14、tract 15 5.2 High voltage equipment selection and calibration at a time15 5.3 Low voltage equipment selection and calibration at a time 17 5.4Equipment selection summary 186 Substation relay protection design19 6.1 Abstract19 6.2The transformer protection setting 19 6.3 10 kv substation busbar protection207Lighting system.20 7.1Summary of electric lighting20 7.2Determine appropriate light source21 7.3The choice of lighting lamps and lanterns and arrangements21 7.4Intensity of illumination computation228Weak current system design31