110KV降压变电所设计(毕业论文)

毕业设计（论文）题目：110KV降压变电所设计学生姓名：系别：电气工程系专业年级：指导教师：年月日摘要110KV降压变电所电气部分设计随着我国国民经济的快速增长，电能已成为影响我国经济发展的重要因素，各地都在兴建一系列的供配电设施。变电所是联系发电厂和电能用户的中间环节，起着变换和分配电能的重要作用。本次所设计的课题是某110kV变电所电气初步设计，该变电所是一个地区性重要的降压变电所，它主要担任110kV及10kV两电压等级功率交换，把接受功率全部送往10kV侧线路。本所位于市中部，所址工程情况良好，处于地区网络枢纽点上，具有110kV、及10kV两个电压等级，110kV侧以接受功率为主，10kV主要用于所用电以及变电站近区负荷。本次所设计的变电所是重要变电所，全所停电后，将影响整个地区以及下一级变电所的供电，变电所最后规模：容量为2100MVA，可选择型号为SFZ9—16000/110KV.SPZ9系列双绕组有载调压的变压器。110kV侧本期出线有2回。主接线形式为单母线分段带旁路接线。本次设计论文是以我国现行的各有关规范规程等技术标准为依据，所设计是一次初步设计，根据任务书提供原始资料，参照有关资料及书籍，对各种方案进行比较而得出。关键词：关键词1变电站；关键词2主变压器；关键词3出线；关键词4配电装置Abstract110kVtransformersubstationthepreliminarypartdesignelectricityWiththefastgrowthofourcountrynationaleconomy,theelectricityalsobecomesimportantofthedevelopmentandsupervisioninourcountry.Everydistrictbuildsaseriesofsupplyanddistributeestablishment.Thesubstationisthemiddlelinkbetweenpowerplantandcustomers,whosefunctionistransforminganddistributingelectricpower.Thistimedesignsthetopicissome110kVtransformersubstationelectricitypreliminarydesign,thistransformersubstationisatopicalityimportantvoltagedroppingresistortransformersubstation,itmainlyholdsthepostof110kVandthe10kVtwovoltagerankpowerexchange,acceptsthepoweralltoescorttothe10kVsidecircuit.Thisinstituteislocatedmiddlethecity,thesiteprojectsituationisgood,isinthelocalareanetworkkeypositiontolight,has110kV,andthe10kVthreevoltageranks,the110kVsideacceptsthepowerprimarily,10kVmainlyusesinusingelectricityaswellastheidleworkcompensation.Thistimedesignsthetransformersubstationisthekeypositiontransformersubstation,afterallpowercut,willaffecttheentireareabythelevelundertheleveltransformersubstationpowersupplynamelythisdesigntransformersubstationfinalscale:Usesthreethreewindingstohavecarriestheregulatingtransformer,mutuallyforspare.The110kVsideVgoingbeyondalinehasfive.Therefore110kVandthe10kVhostwiringfinalplanusesthedoublemothertopartition.10KVusesthesinglemothertopartition.Thistransformersubstationpowerdistributionequipmentusesimproveshalfhighpowerdistributionequipment,110kVand10kVusesthecircuitbreakersinglerowarrangement,undertheisolatorlayingasidegeneratrix,willcauseitsandanotherlevelisolatorelectricitydistanceincreases,reducesthepowerdistributionequipmentthefore-and-aftdistance.Thisdesignpaperistaketechnicalstandardsandsoonourcountrypresenteachrelatedstandardregulationsasthebasis,designsisapreliminarydesign,providesthefirsthandinformationaccordingtotheprojectdescription,thereferencepertinentdataandthebooks,carriesonthecomparisontoeachkindofplantoobtain.Keywords：word1Transformersubstation；word2Maintransformer；word3Goingbeyondaline；word4Powerdistributionequipment目录工程概况.................................................错误!未定义书签。1变电所概况...........................................................61.1变电所位置分析.......................................................................................................................61.2负荷计算的意义及计算目的................................................................................................61.3变压器的选择...........................................................................................................................72电气主接线设计..............................................................................................................92.1电气主接线的设计原则.........................................................................................................93短路电流计算.................................................................................................................123.1短路电流计算的目的............................................................................................................123.2在验算导线和电气设备时所用的短路电流一般有以下规定...................................123.3短路电流计算的步骤..........................................................................................................123.4短路电流计算过程......................................................................................................................134电气设备及母线的选择.....................................................................................................184.1选择电气设备和母线的主要技术条件............................................................................184.2母线及各回出线的选择原则..............................................................................................184.3断路器,隔离开关的选择原则............................................................................................194.4110KV母线,断路器,隔离开关的选择..........................................................................214.510KV母线，断路器，隔离开关的选择..........................................................................234.6变压器10KV侧及母联断路器和隔离开关的选择.......................................................254.7各回出线的选择.....................................................................................................................264.8支柱绝缘子和穿墙套管的选择原则................................................................................284.9互感器的选择.........................................................................................................................304..10并联电容器组的选择..