110KV变电站主变压器继电保护的设计---正文

湖南工程学院毕业设计（论文）目录摘要.........................................................IAbstract......................................................II第1章绪论..................................................11.1供电技术的发展概况......................................11.2变电站技术的发展........................................11.3110kV变电站发展现状....................................31.4变电站设计的基本要求....................................41.5本课题的研究内容........................................4第2章电气主接线选择..........................................52.1概述....................................................52.2主接线的接线方式选择....................................62.3110kV侧主接线设计......................................82.410kV接线设计...........................................82.5主接线图................................................9第3章主变压器的选择.........................................103.1概述...................................................103.2主变压器容量的选择.....................................103.3主变压器台数的选择.....................................113.4主变压器型式的选择.....................................113.5主变压器其它参数.......................................13第4章短路计算...............................................144.1概述...................................................144.2短路计算的目的和假设...................................144.2.1短路电流计算的目的...............................144.2.2短路电流计算的一般规定...........................144.2.3计算的假设条件...................................154.2.4短路电流的计算步骤...............................154.3具体计算...............................................154.3.1短路计算点d1（110kV母线短路）...................164.3.2短路计算点d2（10kV母线短路）....................16110kV变电站的设计4.4短路电流计算结果.......................................18第5章一次设备的选择与校验...................................205.1电气设备选择的基本条件.................................205.1.1电气设备选择的一般原则...........................205.1.2电气设备选择的技术条件...........................205.1.3工作条件.........................................205.1.4短路稳定条件.....................................205.1.5绝缘水平.........................................215.1.6环境条件.........................................215.2高压隔离开关与断路器的选择与校验.......................225.2.1隔离开关的用途...................................245.2.2对隔离开关的基本要求.............................245.2.3隔离开关的类型...................................245.2.4高压断路器的用途和类型...........................255.2.5对高压断路器的基本要求...........................255.2.6参数选择.........................................265.2.7隔离开关与断路器的选择...........................265.3互感器的选择与校验.....................................285.3.1电流互感器的选择.................................285.3.2电压互感器的选择.................................315.4高压熔断器和避雷器的选择与校验.........................325.5母线与电缆线截面的选择与校验...........................355.5.1110kV侧进线的选择...............................355.5.2110kV母线的选择.................................355.5.310kV母线的选择..................................355.5.410kV电缆出线的选择..............................365.6绝缘子和穿墙套管的选择及校验...........................365.6.1支柱绝缘子的选择与校验...........................365.6.2穿墙套管的选择与校验.............................37第6章变电站布置设计.........................................396.1变配电所总体布置的要求.................................396.2110kV侧配电装置.......................................39湖南工程学院毕业设计（论文）6.310kV侧开关柜的布置....................................396.4总体布置图.............................................39第7章变电站防雷与接地设计...................................407.1变电站的防雷保护特点...................................407.2过电压分类及保护.......................................407.3避雷针的保护范围计算...................................417.4接地装置...............................................437.4.1接地的目的及作用.................................437.4.2接地范围.........................................447.4.3接地电阻.........................................44第8章所用电系统设计.........................................45第9章变电站继电保护的配置方案...............................469.1主变保护部分...........................................469.2110kV线路保护部分.....................................469.310kV线路保护..........................................46结束语........................................................47参考文献......................................................48致谢........................................................49附件110kV变电站电气主接线图湖南工程学院毕业设计（论文）I110kV变电站的设计摘要：本设计首先对电力工业发展、电力系统的概念和变电站的设计等做了一个初步的概括。然后进行变电站的负荷计算和无功补偿计算等等。再利用结果对主变压器台数和容量进行选择和主结线方案的确定。其中对主接线的选择做了较为详细的说明，也通过图形对照进行确定。然后通过对短路的计算，选择高压开关设备。对于来自外部的雷电过电压，则进行了防雷保护和接地装置的设计。其中电器设备的选择主要包括：断路器、隔离开关、PT、CT、支柱绝缘子、套管、母线导体、避雷器、电抗器、高压熔断器等。关键词：变电站；一次系统；短路计算；设备选型110kV变电站的设计IIDesignon110kVsubstationAbstract:Thisdesigndevelopstotheelectricpowerindustryofthecountryfirst;theconceptoftheelectricpowersystemwaitedtodowiththetypeofthetransformersubstationafirststepgeneralizes.Thenprecedetheburthencalculationofthetransformersubstationwithhavenothecoefficienttheinexpiationofcalculationtheetc...Makeuseofagaintheresulttocounttothemaintransformersettoproceedthechoicewithcapacitytosettlewithmainknotlineprojectreally.Amongthemconnecttothelordthelinearchoicedidthanforexpatiation,alsopassthesketchcheckagainsttheproceedingmakessure.Thenpasstothesho