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辽宁科技大学本科生毕业设计（论文）第I页某化纤毛纺织厂全厂总配变电所及配电系统设计摘要工厂供电系统就是将电力系统的电能降低压再分配电能到各个厂房或者车间中去,它是由工厂降变电站,高压配电线路,车间变电所,低压配电线路及用电设备组成的。工厂总降压变电所及其配电系统设计，是根据各个车间的负荷数量和性质，生产工艺对负荷的要求，以及负荷布局来确定的。结合国家的相关规定，画出各个配电所以及配电系统的主接线图。电气系统的主接线对供电系统的基本配置以及其安全可靠的运行起着至关重要的作用。良好的供电系统能轻松解决各个部门的安全可靠，经济技术的分配电能问题。其基本内容有以下几方面：负荷计算，功率的补偿，进线电压的选择，变配电所位置的电气设计，短路电流的计算及继电保护，电气设备的选择，车间变电所位置和变压器数量、容量的选择，防雷接地装置设计等。关键词：负荷计算；电气设备；总降变电所；短路计算；继电保护辽宁科技大学本科生毕业设计（论文）第II页AchemicalfiberwoollentextilefactoryfactoryalwaysmatchsubstationanddistributionsystemdesignABSTRACTFactorysupplysystemistoreducethepowerofthepowersystempressureredistributionofpowertothevariousplantorworkshoptogo,itisafactory-downsubstations,high-voltagedistributionlines,substationsworkshop,low-voltagedistributionlinesandelectricalequipmentcomposed.Factoriestotalstep-downsubstationanddistributionsystemdesignisbasedonthenumberandnatureoftheloadofeachworkshop,theproductionprocessoftheloadrequirements,andloaddistributiondetermined.Withrelatedregulationsofthecountry,themainwiringdiagramdrawnsoeachdistributionanddistributionsystem.Mainwiringoftheelectricalsystemofthebasicconfigurationofthepowersupplysystemaswellasitssafeandreliableoperationplaysavitalrole.Goodpowersupplysystemcaneasilysolvethesecuritydepartmentsofreliable,economicandtechnicalproblemsofdistributionofelectricenergy.Thebasiccontentsarethefollowing:loadcalculations,compensation,thelinevoltageofthepowerofchoice,selectthelocationoftheelectricalpowerdistributiondesign,calculationofshortcircuitcurrentandprotection,electricalequipment,workshopandsubstationlocationnumberoftransformers,capacitychoice,lightningprotectionandgroundingequipmentdesign.Keywords:loadcalculation；electricalequipment；totaldropsubstation;shortcircuitcalculation;relayprotection辽宁科技大学本科生毕业设计（论文）第III页1绪论......................................................................................................................................12基础设计资料分析........................................................................................................33供电系统主接线设计与变电所的结构设计............................................................53.1供电系统主接线设计..............................................................................................53.2变配电所的基本设计..............................................................................................64负荷计算...........................................................................................................................75无功功率的补偿以及变压器的选择......................................................................105.1计算功率的补偿....................................................................................................105.2变压器容量的选择................................................................................................126短路电流的计算...........................................................................................................146.1短路电流计算意义及方法....................................................................................146.2短路电流的计算....................................................................................................147进线、母线及电气设备的选择.............................................................................177.1总配电所架空线的选择........................................................................................177.2高压侧与低压侧的母线选择................................................................................177.3各个变电所的进线选择........................................................................................177.4变电所低压出线的选择........................................................................................197.5绝缘子和套管选择与校验....................................................................................207.5.1户内支柱绝缘子........................................................................................207.5.2穿墙套管....................................................................................................217.6设备的选择............................................................................................................217.6.1设备的选择原则................................................................................................217.6.2高压侧设备的选择....................................................................................227.6.3各车间进线设备的选择............................................................................237.7低压设备器件的选择及校验................................................................................248过电流保护....................................................................................................................318.1过电流保护装置的类型........................................................................................318.2变压器的过电流保护............................................................................................319防雷及接地.....................................................................................................................349.1防雷保护................................................................................................................349.2接地方式.............