学生公寓供配电系统设计-毕业论文

青岛理工大学毕业设计(论文)Ⅰ摘要供配电系统是电力系统的电能用户。电力系统和供配电系统的概念、电力系统的额定电压、电力系统的中性点的运行方式、电能的质量指标和电力负荷等基本知识是做供配电技术所必需的。做好供配电工作，对于促进工业生产、降低产品成本、实线生产自动化和工业现代化及表彰人民生活有着十分重要的意义。此论文对学生公寓进行了负荷分析和计算，同时对负荷进行了无功功率的补偿。在这个基础上又比较分析了宿舍楼配电系统的接线方案，确定接线方案之后根据技术规范进行了电气主设备的选型。对于主电气设备的选型主要包括主要高压开关柜（包括高压断路器、高压负荷开关等）的选择、主要低压成套开关设备（包括低压熔断器、低压断路器、隔离开关等）的选择。并于最后做了各主要电气设备的校验，绘制了校验表。此论文最终完成了学生公寓供配电的设计，完全能够满足学生生活对于电力的需求，但是针对宿舍的防雷与消防保护方面并未太多涉及，也是本篇论文的不足之处。关键词：学生公寓，供配电，电力负荷，电气主结线，选择校验青岛理工大学毕业设计(论文)IIABSTRACTPowersupplyanddistributionsystemisthepoweruserofelectricpowersystem.Theconceptofthepowersystemandpowersupplysystem,theratedvoltageofpowersystem,powersystem’soperationmode,powerqualityindicesandpowerloadandotherbasicknowledgearenecessaryforpowerdistributiontechnology.Doagoodjobofdistribution,forthepromotionofindustrialproduction,reduceproductcost,solidproductionautomationandindustrialmodernizationandcommendpeoplelifeisveryimportant.Thispapercompletedtheloadcalculationandanalysisofthestudentapartmen,atthesametimecompletedthecompensationofreactivepower.Onthisbasis,thispapercompletessomewiringschemesanddeterminesthewiringschemeaccordingtothetechnicalspecificationofthemainelectricalequipmentselection.Theselectionofthemainelectricalequipmentsmainlyincludesthemainhighvoltageswitchcabinet(includinghighvoltagecircuitbreaker,high-voltageloadswitchandsoon)selection,mainlow-voltageswitchequipment(includinglow-voltagefuse,low-voltagebreaker,isolatingswitch)selection.Andfinallymadethemainelectricalequipmentcalibration,anddrewthelistofchecking.Thispaperfinallycompletedthepowerdistributiondesignofthestudentapartments,fullyabletomeetstudentsdemandforelectricity.Butitdidn’tinvolvethedormitorylightningprotectionandfireprotectionsomuch,thisisisalsothedeficiencies.KEYWORDS:PowerSupply,ElectricalDesign,Distribution,LoadCalculation青岛理工大学毕业设计(论文)III目录摘要..............................................................................................................................IABSTRACT..................................................................................................................II第1章绪论................................................................................................................11.1供配电系统设计在国内外形势....................................................................11.2毕业设计的要求与目的................................................................................1第2章课题描述..........................................................................................................22.1设计目的及要求..............................................................................................22.1.1设计的目的............................................................................................22.1.2设计的要求............................................................................................22.1.3设计的意义.............................................................................................22.2设计依据..........................................................................................................32.3设计任务..........................................................................................................3第3章负荷计算..........................................................................................................53.1负荷分级及供电要求......................................................................................53.1.1电力负荷的分级....................................................................................53.1.2各级电力负荷对电源的要求................................................................53.1.3本设计负荷分级....................................................................................63.2学生宿舍楼负荷计算......................................................................................6第4章无功补偿及变压器的选择..............................................................................94.1无功补偿的目的..............................................................................................94.1.1无功功率................................................................................................94.1.2影响功率因数的主要因素....................................................................94.1.3提高自然功率因数的方法....................................................................94.2无功补偿方法................................................................................................104.2.1无功补偿装置的选择..........................................................................104.2.2无功补偿装置的安装方法..................................................................114.3无功补偿初步计算........................................................................................124.4变压器的选择................................................................................................124.4.1电力变压器的类型选择......................................................................124.4.2电力变压器的台数和容量选择..........................................................134.4.3电力变压器的过负荷能力..................................................................144.4.4变压器类型的确定..................................................................