PAGE\*MERGEFORMATIII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。SummaryThedesignof220kVsubstationelectricalpartofthepreliminarydesignatatime.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TOC\o"1-2"\h\z\u内容摘要=1\*ROMANIHYPERLINK\l"_Toc200273928"Summary=2\*ROMANIIHYPERLINK\l"_Toc200273928"第一部分设计说明书HYPERLINK\l"_Toc200273929"1原始资料1HYPERLINK\l"_Toc200273935"1.1建站的必要性1HYPERLINK\l"_Toc200273935"1.2系统接入方式1HYPERLINK\l"_Toc200273935"1.3变电工程规模2H