PAGE\*MERGEFORMAT572020年4月19日500KV变电站毕业设计的设计正文文档仅供参考，不当之处，请联系改正。摘要本毕业设计是500kV（500/220/35）变电站工程电气部分初步设计。其中500kV、220kV侧采用GIS方案，为了保证供电的可靠性和一次性满足远期负荷的要求，按照远期负荷规划进行设计建设，从而保证变电站能够长期可靠供电。根据毕业设计任务书的要求，综合所学专业知识及变电站设计相关书籍的有关内容，设计过程中完成了主变选择、电气主接线的拟定、短路计算、电气设备选择、配电装置的规划、继电保护和自动装置的规划和防雷保护的规划等主要工作。而且绘制了一套电气图纸（电气主接线图、平面布置图、配电装置断面图）。关键词500kV变电站GIS方案电气主接线配电装置AbstractThisgraduatedesignthesisisa(500/220/35)kVadecliningtopresstochangetogiveorgetanelectricshockanelectricitypartsoffirststepsdesign.Forthesakeofdependablethatguaranteethepowersupplywitharequestthatcontentedlong-termburthen,carriesaccordingtotheforwardtheprogrammingproceedingdesigndevelopments,frombutguaranteetochangetogiveorgetanelectricshockcanlong-termdependablepowersupply.Accordingtorequirementsofdesigntask,comprehensiveknowledgelearnedandthe"SubstationDesign"andrelatedbooks,thedesignprocesstocompletethemainliningselection,thedevelopmentofmainpower,shortcircuitcalculations,electricalequipmentselection,powerdistributionequipmentplanning,relayprotectionandautomaticprotectiondevicesandmineplanningforplanningmajorwork.Anddrawasetofelectricaldrawings(electricalmainwiringdiagram,withatotalfloorplan,powerdistributionunitcrosssection).Keywords：500kVsubstationGISschememainelectricalconnectionpowerdistributionequipment目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc264793626"1引言PAGEREF_Toc264793626\h1HYPERLINK\l"_Toc264793627"2变电站原始资料分析PAGEREF_Toc264793627\h2HYPERLINK\l"_Toc264793628"2.1设计的原始资料PAGEREF_Toc264793628\h2HYPERLINK\l"_Toc264793629"2.2原始资料具体分析PAGEREF_Toc264793629\h2HYPERLINK\l"_Toc264793630"3变电各电压等级站电气主接线选择PAGEREF_Toc264793630\h4HYPERLINK\l"_Toc264793631"3.1概述PAGEREF_Toc264793631\h4HYPERLINK\l"_Toc264793632"3.2主接线的设计原则及基本要求PAGEREF_Toc264793632\h4HYPERLINK\l"_Toc264793633"3.3电气主接线的选择PAGEREF_Toc264793633\h6HYPERLINK\l"_Toc264793634"4主变压器的选择PAGEREF_Toc264793634\h11HYPERLINK\l"_Toc264793635"4.1主变压器选择的有关规定及原则PAGEREF_Toc264793635\