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毕业论文设计论文题目35KV变电站设计毕业论文(设计)的要求:1.选题结合实际,应具有理论价值和现实意义,符合专业方向:2.查阅国内外已有的相关文献资料并进行比较全面的综述,能基本反映出该研究领域的研究现状;中文参考文献不少于15篇,外文参考文献不少于5篇:3.论文格式符合“****大学本科生毕业论文基本规范”。4.结论与建议具有一定的参考价值;主要参考资料:1.熊信银.《发电厂电气部分》.水利电力出版社,1992年2.何仰赞等.《电力系统分析》.华中理工大学电力出版社,1991年3.贺家李等.《电力系统继电保护原理》.水利电力出版社,1992年4.应智大.《高电压技术》.浙江大学出版社,1994年5.雍静.《供配电技术》.机械出版社,1994年6.刘从爱.《电力工程》.机械工业出版社,1992年学生(签名)年月日指导教师(签名)年月日35KV变电站总体设计I摘要本设计根据某某县北王里的电力负荷资料,作出了该区地面35kV变电所的初步设计。设计说明书内容共分为十三章,包括主接线的设计、负荷计算与变压器选择、高压电器的选择、变电所的防雷及变电所的布置等。本设计以实际负荷为依据,以变电所的最佳运行为基础,按照有关规定和规范,完成了满足该区供电要求的35kV变电所初步设计。设计中先对负荷进行了统计与计算,选出了所需的主变型号,然后根据负荷性质及对供电可靠性要求拟定主接线设计,考虑到短路对系统的严重影响,设计中进行了短路计算。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,提高了整个变电所的安全性。关键词:35KV变电站总体设计35KV变电站总体设计IIAbstractAccordingtothedesignBeiwangliofZhaoxianelectricityloadinformationmadeground35kVsubstationsintheinitialdesign.Designspecificationcontentisdividedintothirteenchapters,includingthewiringdesign,loadcalculationsandtransformerselection,thechoiceofelectricalvoltage,substationsandsubstationsminelayout.Tothedesignbasedonactualload,thebestoperationbasedinsubstations,inaccordancewiththerelevantprovisionsandnorms,andcompletedtomeettherequirementsofthe35kVelectricitysubstationspreliminarydesign.Designofthefirstloadofstatisticsandcalculations,electedforthechangemodels,andthenloadaccordingtothenatureandreliabilityofelectricityforthedevelopmentofthewiringdesign,takingintoaccounttheshort-circuitseriousimpactonthesystemdesignofashort-circuitbasis.Designofthemainhighvoltageelectricalequipmentonthechoicesandcalculations,suchascircuitbreakers,isolationswitches,voltagetransformer,currenttransformer.Inaddition,thedesignandcalculationofmine-protectedandenhancedthesecurityoftheentiresubstations.Keywords:35KV,Substation,Overalldesign35KV变电站总体设计III目录1变电站站址的选择原则和作用..............................................................................................-1-1.1变电站的选择原则.......................................................................................................-1-1.2变电所在电力系统的地位...........................................................................................-2-1.3电力系统供电要求......................................................................................................-2-1.4电力系统运行的特点...................................................................................................-3-1.5电力系统的额定电压...................................................................................................-3-2主接线设计..............................................................................................................................-4-2.1对电气主接线的基本要求...........................................................................................-4-2.2所要选择的主接线形式..............................................................................................-4-3负荷计算..................................................................................................................................-5-3.1计算负荷.......................................................................................................................-6-4变电站主变压器的选择..........................................................................................................-7-4.1绕组数量和连接方式的确定......................................................................................-7-4.2主变阻抗及调压方式选择...........................................................................................-7-4.3电容电流的计算...........................................................................................................-8-4.4变压器中性点接地方式和中性点设计....................................................................-8-4.5主变容量选择原则......................................................................................................-9-5短路电流的计算....................................................................................................................-10-5.1计算短路电流的意义.................................................................................................-10-5.2短路电流计算的规定..................................................................................................-11-5.3本次设计中短路电流的计算...................................................................................-11-6高压电器设备的选择............................................................................................................-14-6.1电器设备选择的一般原则.........................................................................................-15-6.2高压断路器的选择原则.............................................................................................-15-6.3各电压等级侧断路器的选择..................................................................................-17-6.4隔离开关的选择......................................................................................................-18-6.5电压互感器和电流互感器的选择............................................................................-20-6.6电抗器的选择............................................................................................................-21-6.7高压熔断器的选择...............................
本文标题:毕业论文35KV变电站设计
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