国产子午胎LCZ-3(A)型两鼓成型机的主电机系统改造设计毕业论文.doc

河南理工大学毕业设计（论文）说明书目录前言························································································11.绪论····················································································21.1国内外研究及发展现状·····························································21.2焦作地理情况········································································31.3焦作电厂基本情况··································································31.4本课题的研究任务··································································52.电气主接线设计及变压器选择·····················································62.1电气主接线设计原则································································62.2电气主接线设计的基本要求·······················································62.3电气主接线方案的确定·····························································72.3.1对原始资料的分析·····························································82.3.2110kV电气主接线······························································82.3.3发电机变压器组电气主接线················································102.4变压器的选择·······································································112.4.1主变压器的选择······························································112.4.2厂用变压器的选择···························································143.短路电流计算·······································································153.1短路电流计算的目的及短路电流计算条件····································153.2电抗标幺值的计算································································153.3短路电流计算······································································173.3.1发电机端短路（K1点）····················································183.3.2110kV母线短路（K2点）··················································19河南理工大学毕业设计（论文）说明书4.电气设备的选择····································································214.1电气设备选择的一般条件························································214.2电气设备选择······································································244.2.1断路器的选择·································································244.2.2隔离开关的选择······························································264.2.3发电机侧负荷开关和隔离开关的选择·····································284.2.4电流互感器的选择···························································304.2.5电压互感器的选择···························································314.2.6发电机电压互感器和电流互感器的选择··································324.2.7避雷器的选择·································································334.2.8110kV架空输电线的选择···················································344.2.9110kV母线的选择····························································374.2.10发电机出口母线的选择····················································394.2.11110kV母线支柱绝缘子····················································414.2.12发电机侧母线支柱绝缘子·················································425.配电装置·············································································435.1配电装置的设计原则与设计要求···············································435.1.1配电装置的设计原则························································435.1.2配电装置的设计要求························································435.2配电装置的设计··································································44结束语···················································································46致谢···················································································47参考文献················································································48河南理工大学毕业设计（论文）说明书摘要本设计主要是针对焦作电厂的110kV一次系统，概述了焦作电厂设计的基本过程和基本方法。第一章概括介绍了国内外电力工业的研究及发展现状和焦作电厂的基本情况，为后几章提供所需的基本资料。第二章是电气主接线和电气设备的选择，根据焦作电厂的原始资料拟定了主接线方案，确定发电机、主变压器、高压厂用变压器和高备变压器的容量和型号。发电厂电气主接线是发电厂电气设计的主体，与电厂运行的可靠性、经济性要求等密切相关，对电器选择和布置，继电保护和控制方式等都有较大的影响。第三章对焦作电厂一次系统做了短路电流计算，为后面设备的选型提供了依据。第四章是一次系统电器设备的选择，并在正常工作条件下和短路条件下对其进行校验。第五章是针对配电装置的设计，同时也是对前几章内容的综合概括。随着国民经济和科学技术的发展，发电机单机容量在不断扩大，这就对电厂的主接线形式和配套设备提出了更高的要求，同时也要求发电厂做到可靠、经济、合理地运行，满足人们对电能的基本需求。关键词：一次系统主接线短路电流计算电气设备配电装置河南理工大学毕业设计（论文）说明书AbstractThisdesignistoaimatmakingonesubsystemofJiaozuopowerstation110kVmainly.Chapter1hasgeneralizedtointroduceresearchofdomesticandinternationalelectricpowerindustryandpresentconditionsandbasiccircumstanceofJiaozuopowerstationthatisbasicdataneededbyseveralchapterslater.Chapter1isachoicethatconnectslineandtheelectricityequipments.AccordingtotheoriginaldataofJiaozuopowerstationtodraftconnectlineform,capacitiesandmodelnumbersofgenerators,maintransformers,thetransformerthehighpressureusedbyanfactories,highthecapacitytransformersusedincase.Connectsthelineisbodyofdesignsthepowerplant,.Credibilityandeconomystandardofpowerstationiscloselyrelated,ithasbiggerinfluencetochoiceandarrangementoftheelectricappliances,tothewayofprotectionandcontrol,etc.Accordingtothetechniquedataofchapter2,doshort-circuitelectriccurrentcalculationofsubsysteminchapter3,providesbaseforthebehindequipments.ThechoiceofthesubsysteminChapter4,itscarryoncheckelectricofappliancesequipmentsundertheconditionofnormalhot-circuitcondition.Chapter5isaimtothedesignofthepowerdistributionequipment.Alsoisthesummaryofbeforepart.Alongwiththedevelopmentofscienceandtechnology,singlemachinecapacityofgeneratorisextendingcontinuously,itneedshigherrequeststoconnectthelineformandthekitequipmentsofthepowerstation,alsorequestthepowerplanttoattainthecredibility,economy,reasonablemovement,alsosatisfythepeoplesbasicneedthatistheelectricpower.Keywords：themainsystem，formsofmainconnectedlines,short-circuitcalculation，electricalequipments,thepowerdistributionequipments