110kV变电站一次系统设计摘要本设计首先对课题所给原始数据进行分析，然后进行变电站的负荷计算和无功补偿计算。确定无功补偿装置及无功补偿容量。其次就是根据原始数据，进行短路计算和主接线的选择，然后根据短路计算的结果，对各种一次设备进行选型校验；完成主接线选择及设备选型后，根据设计要求绘制该变电站一次系统图。最后进行防雷、接地、变电站布置以及变电站自用电系统的设计，其中电器设备的选择主要包括：断路器、隔离开关、电压互感器、电流互感器、绝缘子、套管、电缆母线、避雷器等。关键词：变电站；一次系统；负荷计算；无功补偿；短路计算Designof110kVSubstationandPrimarySystemAbstractThedesignfirsttosubjecttheoriginaldataanalysis，andsubstationsloadscomputationandnoworkmakethecalculation.Thenprecedetheburthencalculationofthetransformersubstationwithhavenothecoefficienttheinexpiationofcalculationtheetc..Secondly,accordingtotheoriginaldata,forshorttermsandthechoice,Andaccordingtoshort-circuittheresult,adevicewouldthechecksum；Completetheconnectiontochoosethetypeandequipmentdesignedtodraw,whenthesubstationsasystem.Finally,topreventground,readyforsubstations,andtheelectricitysysteminsubstations,Ofelectricalequipmentchosenprimarilyincludes：breaker,isolatedfromaswitch,voltage,potentialtransformer,currenttransformer,post-typeinsulator,bushingandcablesetc.,lightningarrester，busetc.Keywords:TransformerSubstation,ThePrimarySystem,loadcalculation，Reactivepowercompensation，Short-circuitcalculation目录摘要.............................................................................................................................IAbstract........................................................................................................................II前言…………………………………………………………………………………………………………………………………………….1第1章原始数据.......................................................................................................21.1原始数据........................................................................................................................21.1.1自然概况.................................................................................................................21.1.2供电现状.................................................................................................................21.1.3工程规模.................................................................................................................21.2设计任务........................................................................................................................3第2章主接线设计与一次设备的选择...................................................................42.1主接线的基本要求.........................................................................................................42.2主接线方案分析比较.....................................................................................................52.2.1单母线.....................................................................................................................52.2.2单母线分段接线...................................................................................................62.2.3桥式接线.................................................................................................................62.3电气主接线的确定...................................................................
