500KV变电所电气一次设计(详细-规范模板)

500kv变电站电气一次部分初步设计500kV变电站电气一次初步设计摘要随着近些年来我国经济的持续发展，能源的重要性日趋凸显。电力系统在整个行业中所占的比例逐渐增大，现代电力系统是一个庞大且有领导性地位的整体。各类发电厂、变电站分工完成整个电力系统的发电，变电和配电任务。电力系统是国民经济的重要能源部门，而变电站的设计是电力工业建设中必不可少的一个项目。设计的内容有500kV枢纽变电站的电气主接线的选择，主变压器的选择，母线、断路器和隔离开关的选择，电流互感器及电压互感器的配置，500kV、220kV、35kV线路的选择和短路电流的计算。设计中还对主要高压电器设备进行了选择与计算，如断路器、隔离开关、电压互感器、电流互感器等。此外还进行了防雷保护的设计和计算，提高了整个变电站的安全性。本设计书包括原始资料分析、设计说明书、计算书。关键词：变电站；主接线；短路电流；变压器500kv变电站电气一次部分初步设计THEDESIGNOFTHEFIRSTPARTABOUTTHE500KVTRANSFORMERSUBSTATIONABSTRACTChina'seconomyinrecentyearswiththecontinueddevelopmentofincreasinglyhighlightedtheimportanceofenergy.Powersystemintheindustryincreasestheproportionofthemodernpowersystemisalargeandtheoverallpositionofleadership.Varioustypesofpowerplants,substationscompletethepowersystemdivisionofpowergeneration,substationanddistributiontasks.Powersystemisanimportantnationalenergysector,andsubstationdesignisessentialfortheconstructionofthepowerindustryasaproject.Thedesignofthebookintroducestheregional500kVelectricalsubstationdesignapartofthecontentanddesign.Thedesignofthecontentsoftheelectricalsubstation500kVmainregionalcablechoice,themaintransformer,thetransformerusedinthechoiceofbus,circuitbreakersandisolationswitchoption,theconfigurationoftransformer,500kV,220kV,35kVlinechoiceandshort-circuitcurrentcalculations.Thedesignofthemainhighpressurealsohadachoiceofelectricalequipmentandcomputing,suchascircuitbreakers,isolatingswitches,voltagetransformers,currenttransformersandsoon.Inaddition,alightningprotectiondesignandcomputing,increasedthesafetyoftheentiresubstation.Thedesignofthebookincludingthedesigningspecification,calculatingandselectingbookandthedrawings.Keywords:500kVsubstation;mainconnection;short-circuitcurrent;transformer500kv变电站电气一次部分初步设计目录1变电站原始资料.........................................................................................................12设计说明书...............................................................................................................22.1电气主接线选择..........................................................................................................22.1.1主接线基本要求................................................................................................22.1.2主接线设计原则及步骤....................................................................................22.1.3主接线基本接线形式及特点............................................................................42.1.4主接线方案确定................................................................................................72.2站用电选择................................................................................................................102.2.1站用变压器选择..............................................................................................102.2.2站用电接线......................................................................................................102.3无功补偿装置选择....................................................................................................112.3.1无功补偿装置选择要求..................................................................................112.3.2无功补偿装置选择结果..................................................................................122.4主变压器选择............................................................................................................122.4.1主变压器台数和容量确定..............................................................................122.4.2主变压器形式和结构选择原则......................................................................122.4.3主变压器选择结果..........................................................................................132.5短路电流计算..........................................................................................................132.5.1短路电流计算原则..........................................................................................132.5.2短路电流计算结果..........................................................................................142.6主要电气设备选择....................................................................................................142.6.1断路器选择......................................................................................................152.6.2隔离开关选择..................................................................................................162.6.3电流互感器选择..............................................................................................172.6.4电压互感器选择..............................................................................................192.6.5导体选择..........................................................................................................21500kv变电站电气一次部分初步设计2.7限流电抗器选择........................................................................................................232.8绝缘子和绝缘套管选择............................................................................................232.9防雷设计...................................................................................................................242.9.1避雷针设计..............................................................................