某镇35kV变电站毕业设计论文

河南理工大学毕业设计（论文）说明书-1-目录1绪论...............................................11.1变配电所型式的选择......................................11.2设计的适用范围及建设规模................................11.3设计内容................................................11.4选址条件................................................11.4.1变电所所址选择应满足的要求...........................11.4.2自然条件............................................22负荷计算及变压器选择........................................32.1负荷计算................................................32.1.1原始资料............................................32.1.2负荷计算............................................32.2功率的补偿计算...........................................42.335KV主变压器台数和容量的选择............................52.4所用变压器..............................................53电气主接线的设计............................................62.1主接线的基本要求........................................62.235KV电气主接线..........................................62.310KV电气主接线..........................................92.4站用电接线.............................................114短路电流的计算.............................................134.1各回路最大持续工作电流.................................134.2短路电流计算的目的及一般规定...........................134.2.1短路的原因.........................................13河南理工大学毕业设计（论文）说明书-2-4.2.2短路的种类.........................................134.2.3研究短路的目的.....................................144.2.4进行短路计算的基本假设.............................144.3短路电流计算...........................................154.3.1短路计算的步骤......................................154.3.2基准值的选取与计算.................................154.3.3各元件相对电抗的计算................................154.3.4短路电流的计算.....................................165电气设备的选择.............................................195.1电气设备选择的一般原则.................................195.1.1电气设备选择的一般原则.............................195.1.2技术条件....................................................195.2高压断路器.............................................205.3隔离开关的选择.........................................235.4绝缘子和穿墙套管的选择.................................255.5高压熔断器.............................................255.6电流互感器.............................................265.7电压互感器.............................................275.810KV侧电器设备的选择...................................285.9母线的选择.............................................305.9.135kV母线的选择.....................................305.9.210kV母线的选择.....................................316变电所继电保护与整定.......................................336.1继电保护的基础.........................................336.1.1继电保护的任务.....................................336.1.2继电保护的组成及工作原理...........................336.1.3继电保护的基本要求.................................33河南理工大学毕业设计（论文）说明书-3-6.2变电所继电保护配置.....................................346.2.135kV进线保护.......................................356.2.235kV母联开关保护...................................366.2.3主变压器保护.......................................366.2.410kV母线保护.......................................406.2.510kV出线保护.......................................417变电所的防雷措施及接地装置.................................427.135kV线路的防雷.........................................427.2变电所直击雷保护.......................................427.3接地装置...............................................437.3.1接地的分类..........................................437.3.2接地装置的布置.....................................44结束语.......................................................45致谢.........................................................46参考文献.....................................................47河南理工大学毕业设计（论文）说明书1摘要本论文主要是针对白渡镇35/10kV变电站的设计，概述了变电站设计的基本过程和基本方法。首先介绍了变电站设计应注意的地方；其次根据白渡镇的原始资料进行负荷计算和主变压器及其容量的选择，确定主变压器容量和型号；接着进行电气主接线的设计，电气主接线是变电站电气设计的主体，与变电站运行的可靠性、经济性要求等密切相关；接着对35kV变电站做了短路电流计算和电器设备的选择，短路电流是为后面设备的选型提供了依据并根据短路电流可以进行设备的整定和校验；最后针对短路电流进行继电保护和变电站的防雷设施和接地装置等。随着国民经济和科学技术的发展，农村及附近的镇用电的需求量越来越大，这就对变电站的主接线形式和配套设备提出了更高的要求，同时也要求发变电站做到可靠、经济、合理地运行，满足人们对电能的基本需求。关键词：变电站；主接线；主变压器；短路电流计算河南理工大学毕业设计（论文）说明书2ABSTRACTThispaperismainlydirectedagainstwhiteDuzhen35/10kVsubstationdesign,outlinedthebasicdesignofthesubstationprocessandbasicmethods.FirstintroducedsubstationdesignshouldpayattentiontotheareasunderwhiteDuzhenfollowedbytheoriginaldataloadcalculationandcapacityofthemaintransformeranditschoicetodeterminethemaintransformercapacityandmodels;followedbythemainelectricalwiringdesign,electricalwiringisthemainelectricalsubstationThemaindesignandoperationofthesubstationreliability,economicrequirements,andmorecloselyrelatedtothe35kVsubstationandthendoashort-circuitcurrentcalculationandelectricalequipmentchoice,short-circuitcurrentisbehindtheselectionofequipmentandprovidesabasisunderthecurrentcanshort-circuitThewholesetequipmentandcalibration;lastforashort-circuitcurrentprotectionandsubstationfacilitiesandtheminegroundingdevices.Asthenationaleconomyandscientificandtechnologicaldevelopment,ruralandnearthetownofgrowingdemandforelectricity,whichsubstationonthemainformofwiringandancillaryequipmentahigherdemand,italsorequiresthesubstationtoreliable,Theeconomy,areasonableoperation,meetthebasicneedsofel