220KV变电站电气部分-毕业设计论文.doc

PAGE\*MERGEFORMATIPAGE\*MERGEFORMATI毕业论文题目：220KV变电站电气部分设计院（系）：成人教育学院专业：电气工程及其自动化PAGE\*MERGEFORMATIIPAGE\*MERGEFORMATIII摘要随着经济的发展和现代工业建设的迅速崛起，供电系统的设计越来越全面、系统，工厂用电量迅速增长，对电能质量、技术经济状况、供电的可靠性指标也日益提高，因此对供电设计也有了更高、更完善的要求。设计是否合理，不仅直接影响基建建投资、运行费用和有色金属的消耗量，也会反映在供电的可靠性和安全生产方面，它和企业的经济效益、设备人身安全密切相关。本设计讨论的是220KV变电站电气部分的设计。首先对原始资料进行分析，选择主变压器，在此基础上进行主接线设计，再进行电气总平面的布置及配电装置的设计，变压器的选择，然后进行短路计算，导体电气设备的选择，继电保护的设计和配备，最后进行防雷接地以及保护设计。关键字：变电站；短路计算；设备选择；继电保护；防雷接地；PAGE\*MERGEFORMATIVPAGE\*MERGEFORMATIIIABSTRACTWiththedevelopmentofeconomyandtherapidriseofthemodernindustrialconstruction,thedesignofthepowersupplysystemismoreandmorecomprehensive,system,plantpowerconsumptiongrowingrapidly,thepowerquality,technicalandeconomicconditions,thepowersupplyreliabilityindexalsoisincreasingdaybyday,thereforealsohasabigger,betterforpowersupplydesignrequirements.Designisreasonable,notonlydirectlyaffectthecapitalconstructioninvestment,operationcostandtheconsumptionofnon-ferrousmetal,alsoreflectedinthepowersupplyreliabilityandsafetyproduction,anditiscloselyrelatedtotheenterprise'seconomicbenefits,equipmentsafety.Thedesignisrefertothepartof220kVelectricalsubstationdesign.Firstofall,analyzetheoriginaldata,basedonit,designthemainwiringandthenthedesignoftheelectricalgenerallayoutofthearrangementanddistributionequipmentandchoosethemaintransformer,thentheshortcircuitcalculation,thechoiceofconductorelectricalequipment,thedesignofrelayprotectionandareequippedwith,atlast,Lightningprotectiongroundingandprotectiondesign.KeyWords:Substation；ShortCircuitCalculation；EquipmentSelection；Relayprotection；Lightningprotectiongrounding；PAGE\*MERGEFORMATIVPAGE\*MERGEFORMATV目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc170369751"引言PAGEREF_Toc170369751\h6HYPERLINK\l"_Toc170369752"1电气主接线的设计PAGEREF_Toc170369752\h7HYPERLINK\l"_Toc170369753"1.1主接线概述PAGEREF_Toc170369753\h7HYPERLINK\l"_Toc170369754"1.2主接线设计原则PAGEREF_Toc170369754\h9HYPERLINK\l"_Toc170369755"1.3主接线选择PAGEREF_Toc170369755\h9HYPERLINK