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1、220kV变电站一次侧电气部分方案设计摘要电力工业是国民经济的基础,是重要的支柱产业,它与国家的兴衰和人民的安康有着密切的关系,随着经济的发展和现代工业的建设的迅速崛起,供电系统的设计越来越全面。工厂用电量迅速增长,对电能质量、技术经济状况、供电的可靠性指标也日益提高,因此对供电设计也有了更高、更完善的要求。变电所及配电系统设计的优劣是变电所得以运行的根本。本设计做的是220KV变电站一次侧电气部分的设计。论文中首先对提供的原始负荷资料进行分析,通过负荷的计算确定变电站主变容量及台数。然后通过短路计算,参考总降变电所所在地的气象条
2、件和其他有关资料,确定变电所位置、导线型号。通过计算所得的短路电流值对断路器、电流互感器、电压互感器等高压电气设备进行选择。最后进行防雷接地设计。本设计实现了主变及电气设备的选择,对今后进一步设计起到引导作用。关键词:变电站;负荷计算;短路电流;设备选择PDF文件使用"pdfFactoryPro"试用版本创建ÿwww.fineprint.com.cnPrimaryofTheElectricalPartfor220KVSubstationDesignAbstractThepowerindustryisthebasisofthenat
3、ionaleconomy,whichisanimportantpillarindustry,theriseandfallwiththeStateandpeoplecloselyrelatedtothewell-being,alongwitheconomicdevelopmentandtherapiddevelopmentofmodernindustryrise,moreandmorepowersupplysystemdesigncomprehensive,rapidgrowthofplantconsumptionforpowerq
4、uality,technicalandeconomicconditions,reliabilityofelectricitysupplyareincreasing,andthereforealsohavehigherpowersupplydesign,betterrequirements.Thefactorypowersupplysystemdesignfitandunfitqualityarethebaseswhichtheenterprisecanmove.Thedesigndiscussionisonesideofelect
5、ricalpartof220KVsubstationdesign.Inthedesign,Ianalysistheoriginalloaddatafirst,thencalculatetheelectricityloadtodeterminethecapacityandquantityofmaintransformerwhichsubstationsneed.Next,throughshort-circuitsthecomputation,referstothefactorylocusthemeteorologicalcondit
6、ionandotherpertinentdates,thenmaydeterminethetransformersubstationtheposition,thewiremodel.Ichoosetheelectricaldevicesuchasthecircuitbreaker,thecurrenttransformerandthepotentialtransformerthroughtheshort-circuit.Intheend,Idesignthelightningprotection.Thedesignimplemen
7、tofthemaintransformerandelectricalequipmentselection,itisimportantforthedesignofthefutureanditplaysaguidingroleinthefurther.Keywords:substation;short-circuitcurrent;equipmentselection;distributionequipmentPDF文件使用"pdfFactoryPro"试用版本创建www.fineprint.com.cn目录论文总页数:29页1引言.
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