110/35/10kV降压变电站一次系统设计题目毕业设计(论文)系别电力工程系专业班级学生姓名指导教师二○一○年六月本科毕业设计（论文）PAGEII110kV降压变电站一次系统设计摘要城市供电系统的核心部分是变电站。因此，设计和建造一个安全、经济的变电站，是极为重要的。110kV变电所设计以生产实际为依据，以变电所的最佳运行状态为基础，系统的阐明了110kV变电所设计的基本方法和步骤，经过多方面的校验，是满足实际生产需要的一套最优设计方案。本变电站设计除了注重变电站设计的基本计算外，对于主接线的选择与论证等都作了充分的说明，其主要内容包括：变电站主接线方案的选择，进出线的选择；变电站主变压器台数、容量和型式的确定；短路点的确定与短路电流的计算，电气设备的选择（断路器，隔离开关，电压互感器，电流互感器，避雷器）；配电装置设计和总平面布置；防雷保护与接地系统的设计。另外，绘制了七张图纸，包括：电气主接线图，电气总平面布置图，防雷接地图，110kV接线断面图，110kV内桥断面图，35kV接线断面图，10kV室内配电图等。图纸规格与布图规范都按照了电力系统相关的图纸要求来进行绘制。关键词：变电站；电气主接线；电气设备；设计ADESIGNOFELETRICSYSTEMFOR110kVTERMINALTRANSFORMERSUBSTATIONAbstractThecoreofcityforsupplyingpoweristransformer.Itisveryimportanttodesignandbuildonesafeandeconomicaltransformersubstation[1].Theactualdesignfortheproduction,basedonthebestoperationtosubstationsbasedsystemdesignedtoclarifythe110kVsubstationsbasicmethodsandsteps,aftermultipleaccess,isasetofsolutionstomeettheneedsofactualproductiondesignprograms.Besidespayingattentiontobasiccalculationofdesignfortransformersubstation,thedesignmakessatisfyingnarrationtowardchoiceandargumentationofmainconnection.Themaincontentofthisdesignincludethechoiceofmainconnectionfortransformersubstation;thechoiceofpassinandoutline;thecertaintyofnumber,capacitanceandmodelformaintransformer;thecertaintyofshortcircuitpointsandcalculationofshortcircuit;thechoiceelectricequipment(breaker,insulateswitch,voltagemutual-inductanceimplement,currentmutual-inductanceimplement,arrester);thedesignfordistributionanddisposalforchiefplane;thedesignforlightningproofprotectionandearthsystem.Inaddition,drawingsevenblueprintsincludethemainwiringdiagram;thedisposaldrawingofelectricplane;thedrawingoflightningproofprotectionandearthsystem;thedrawingof110kVconnection;thedrawingof35kVconnection;thedrawingof10kVindoordistributionandsoon.Boththespecificationofdrawingandthecriterionofdisposalisbasedonrequirementofdrawingtoelectricpowersystem.Keywords:Transformersubstation;Mainconnection;Electricequipment;Design目