明振宇-毕业设计论文

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1、毕毕毕业业业业设设设设计计(论文)`题目220kV降压变电所电气一次系统设计（220/110/10kV，2/4/12回出线）院系电力工程系专业班级农电05K1班学生姓名明振宇指导教师彭咏龙二二○○二○○九九年六月九年六月华北电力大学本科毕业设计（论文）220kV降压变电所电气一次系统设计（220/110/10kV，2/4/12回出线）摘要电能是现代城市发展的主要能源和动力.随着现代文明的发展与进步，社会生产和生活对电能供应的质量和管理提出了越来越高的要求。城市供电系统的核心部分是变电所。因此，设计和建造一个安全、经济的变电所，是极为重要的。本变电所设计除了注重变电所设计

2、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：变电所主接线方案的选择，进出线的选择；变电所主变压器台数、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，绘制了五张图纸，包括：电气主接线图，电气总平面布置图，防雷与接地图各一张，配电装置断面图3~4张。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：变电所；电气主接线；电气设备；设计I华北电力大学本科毕业设计（论文）ADESIGNOFELETRICSYS

3、TEMFOR220kVTERMINALTRANSFORMERSUBSTATIONAbstractElectricenergyisthemainenergyanddynamismofmoderncitydevelopment.Withdevelopmentandprogressofmoderncivilization,socialproductionandisitputforwardhighrequestmoreandmoretoqualityandmanagementthatelectricenergysupplytolive.Thecoreofcityforsuppl

4、yingpoweristransformer.Itisveryimportanttodesignandbuildonesafeandeconomicaltransformersubstation.Besidespayingattentiontobasiccalculationofdesignfortransformersubstation,thedesignmakesatisfyingnarrationtowardchoiceandargumentationofmainconnection.Themaincontentofthisdesignincludethechoi

5、ceofmainconnectionfortransformersubstation;thechoiceofpassinandoutline;thecertaintyofnumber,capacitanceandmodelformaintransformer;thecertaintyofshortcircuitpointsandcalculationofshortcircuit;thechoiceelectricequipment(breaker,insulateswitch,voltagemutual-inductanceimplement,currentmutual

6、-inductanceimplement,arrester);thedesignfordistributionanddisposalforchiefplane;thedesignforlightningproofprotectionandearthsystem.Inaddition,drawingfiveblueprintsincludethemainwiringdiagram;thedisposaldrawingofelectricplane;thedrawingoflightningproofprotectionandearthsystem;Boththespeci

7、ficationofdrawingandthecriterionofdisposalisbasedonrequirementofdrawingtoelectricpowersystem.Keywords:Transformersubstation;Mainconnection;Electricequipment;DesignII华北电力大学本科毕业设计（论文）目录摘要·······················································································