配电室电气设计(毕业设计)

北京建筑工程学院毕业论文题目北京万科蓝山4#高基配电工程电气设计学生姜爱林指导教师王燕京高级工程师学号2107170812201班级电08-2系别电气工程及其自动化2012年5月北京建筑工程学院毕业设计（论文）摘要配电室是电力系统的重要组成部分，直接影响整个电力系统的安全与经济运行，是联系发电厂和用户的中间环节，起着变换和分配电能的作用。本毕业设计是根据国家相关标准和规范，对北京万科蓝山4#高基配电工程中，新建小区及小区商业配套供配电系统进行电气设计。其工程概况包括以下几个方面：首先，根据北京电力公司高压供电方案等，提供资料，进行负荷计算，其次，选择变压器型号并进行布置，最后根据电压和计算电流选择低压电缆型号和低压配电设备，并进行布置，并对所有设备进行接地保护设置，最后绘制出相关的电气图纸。关键词：配电；新建小区；商业配套；负荷计算；设备选择；防雷接地AbstractDistributionroomisanimportantpartofthepowersystem,directlyaffectingthesafetyandeconomicoperationoftheentirepowersystem,contactthepowerplantsandusersofintermediatelinks,playstransformationanddistributionofelectricenergyrole.Thisgraduationprojectisaccordingtotherelevantnationalstandardsandnorms,BeijingWankelanshan4#High-baseddistributionprojects,newresidentialandcommunitycommercialfacilitiessupplyanddistributionsystemforelectricaldesign.ProjectOverviewincludesthefollowingaspects:First,accordingtotheBeijingElectricPowerCorporationhighvoltagepowersupplysolutions，loadcalculation,andsecondly,thetransformermodelandlayout,andfinallyselectmodelsofthelowvoltagecableandlowvoltagedistributionequipmentaccordingtothevoltageandcalculatethecurrentandlayout,andallequipmentgroundingprotectionsettings,andfinallydrawelectricaldrawings.Keywords:Distribution;newdistrict;commercialfacilities;loadcalculation;equipmentselection;lightningprotectiongrounding北京建筑工程学院毕业设计目录前言：...........................................................................................................................................................3一．设计说明...............................................................................................................................................11.1住宅小区基本情况.......................................................................................................................11.2给定条件........................................................................................................................................11.3配电所主接线及其电气设备........................................................................................................11.3.1主接线................................................................................................................................11.3.2主接线的主要电气设备....................................................................................................21.4高基配电室的含义.......................................................................................................................11.5供电可靠性与负荷等级...........................................................................................................-1-二．负荷计算...........................................................................................................................................-3-2.1用电设备组的负荷计算...........................................................................................................-3-2.2功率因数与无功补偿.............................................................................................................-15-2.2.1功率因数低对供配电系统的影响..............................................................................-15-2.2.2提高功率因数的措施..................................................................................................-15-2.2.3静止无功补偿容量的计算..........................................................................................-16-2.2.4电容器接线方式的选择..............................................................................................-17-2.2.5并联补偿电容器装置的装设地点..............................................................................-17-三、短路电流计算.................................................................................................................................-19-3.1短路电流的计算......................................................................................................................-19-3.1.1短路电流的计算..........................................................................................................-19-四、低压开关保护定值的整定.............................................................................................................-22-4.1低压主进开关：......................................................................................................................-22-4.2低压联络开关：......................................................................................................................-22-4.3低压馈线开关：......................................................................................................................-23-五、设备选型.........................................................................................................................................-24-5.1变压器的选择.........................................................................................................................-24-5.2设备、线路和计算仪表的选择.............................................................................................-24-5.2.2导线电缆的选取原则..................................................................................................-25-5.3高压开关柜的选择..................................................................