220kV变电站电气一次部分毕业设计论文

邵阳学院毕业设计（论文）I毕业设计（论文）课题名称220kV变电站电气一次部分初步设计学生姓名学号系、专业电气工程系、电气工程及其自动化指导教师职称邵阳学院毕业设计（论文）II内容提要本次设计为220kV变电站电气一次部分的初步设计。根据原始资料，以设计任务书和国家及行业有关电力工程设计的规程规范为设计依据，并结合该地区实际情况设计该变电站，设计的内容符合国家有关经济技术政策，所选设备全部为国家推荐的新型产品，技术先进、运行可靠、经济合理。本期该变电站设有两台主变压器，远期该变电站设有三台主变压器。站内主接线分为220kV、110kV和10kV三个电压等级。设计正文分设计说明书和设计计算书两个部分，设计说明书包括电气主接线设计、变压器选择说明、短路电流计算说明、电气设备选择说明、配电装置设计、电气总平面布置和防雷保护设计；设计计算书包括变压器选择、短路电流计算、电气设备选择及校验等，并附有电气主接线图及其它相关图纸。关键词：220kV变电站；短路计算；主接线；设备选择。邵阳学院毕业设计（论文）IIISummaryThedesignof220kVsubstationelectricalpartofthepreliminarydesignatatime.Accordingtotheoriginaldata,adesignspecificationandcountryandindustryrelevantpowerengineeringdesignprocedurespecificationfordesignbasis,andcombinedwiththeregion'sactualcondition,thedesignofthesubstationdesigninconformitywiththerelevanteconomicandtechnologicalpoliciesofthestate,thecontentsoftheselectedequipmentforallcountriesrecommendnewproducts,advancedtechnology,reliableoperation,economicandreasonable..Thesubstationisequippedwithtwosetsofthemaintransformer,forwardthehasthreemaintransformersubstation.stationconnectionisdividedinto220kV,110kVand10kVvoltagegradethree.Thistextpointsdesignspecificationsanddesigncalculationoftwoparts,thedesignspecifications,includingthemainelectricalwiringdesignoftransformerselection,theshortcircuitcurrentcalculation,electricalequipmentselection,designofpowerdistributionequipment,electricaltotalplanelayoutandlightningprotectiondesign;Designcalculationincludesthechoiceoftransformer,theshort-circuitcurrentcalculation,electricalequipmentselectionandcalibration,etc.,withthemainelectricalwiringdiagramandrelateddrawings.Keywords:220kVsubstation;Shortcircuitcalculation;Themainwiring;Equipmentselection.目录内容摘要............................................................................................................ISummary...........................................................................................................................II第一部分设计说明书1原始资料.......................................................................................................11.1建站的必要性............................................................................................11.2系统接入方式............................................................................................11.3变电工程规模............................................................................................21.4变电站站址选择.........................................................................................21.5系统短路阻抗及本期出线潮流估计.........................................................22变压器选择...................................................................................................52.1主变压器选择............................................................................................53电气主接线设计...........................................................................................93.1主接线设计的原则和要求........................................................................93.2主接线基本接线方式................................................................................93.3主接线设计步骤......................................................................................103.4本站主接线设计方案..............................................................................114短路电流计算说明.....................................................................................184.1短路电流计算概述..................................................................................184.2常见短路电流计算..................................................................................194.3短路电流计算结果..................................................................................215高压电器设备选择.....................................................................................235.1电气设备选择一般条件..........................................................................235.2高压断路器的选择..................................................................................245.3隔离开关的选择......................................................................................265.4互感器的选择..........................................................................................275.5母线的选择..............................................................................................286配电装置设计.............................................................................................296.1配电装置应满足以下基本要求...............................................................296.2配电装置设计的基本步骤.......................................................................296.3配电装置的种类及应用...........................................................................296.4本变电站配电装置设计...........................................................................297防雷保护设计.............................................................................................317.1变电站防雷保护的特点...........................................................................317.2防雷防护类型...........................................................................................31第二部分设计计算书8短路电流计算..............................................................................