资源描述:
《300mw汽轮发电机组厂用电设计论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、太原工业学院毕业设计2×300MW汽轮发电机组厂用电设计摘要本论文是对发电厂厂用电进行设计,主要运用发电厂电气部分,电力系统分析,电力系统继电保护等专业知识完成。具体设计内容包括厂用电接线设计,负荷分析计算,变压器选择,电动机自启动校验,继电保护设计,防雷设计等。在严格遵循发电厂电气部分的设计原则下,并结合实际情况确定了厂用电母线电压等级为6KV,利用换算系数法进行负荷分析计算,变压器选择低压分裂三绕组变压器,确定了合适的短路点进行短路电流计算,根据防雷保护要求确定避雷器,最后绘制了厂用电接线图。关键词:发电厂,
2、变压器,避雷器太原工业学院毕业设计DesignofPowerPlantof2×300MWTurboGeneratorFactoryAbstractThepaperisdesignedtowardstheelectricitypowerplant,usingelectricalpowerplants,powersystemanalysis,powersystemprotectionandotherexpertisetocomplete.Specificdesignelementsincludingelectrici
3、tycableplantdesign,loadanalysis,thechoiceoftransformers,motorsstartchecking,relayprotectiondesign,lightingprotectiondesignandsoon.Thedesignfollowsstrictlytotheprinciplesoftheelectricalpowerplants,combinedwiththeactualsituation,identifyingthebusvoltageelectric
4、ityplantas6KV,usingconversionfactormethodtocalculatetheload,choosingthelow-voltagesplitthreewindingtransformer,fixingtheappropriateshort-circuitpointtocalculatetheshort-circuitcurrent,selectingthearresteraccordingtotherequirementoflightingprotection,finallydr
5、awingtheelectricwiringdiagram.Keyword:powerplant,transformer,arresterI太原工业学院毕业设计目录前言................................................................1第1章厂用电电压等级确定及接线设计.................................21.1厂用电.....................................................
6、..21.2厂用电的电压等级确定.........................................21.3厂用电接线设计...............................................41.3.1对厂用电接线的要求......................................41.3.2厂用电接线的基本原则....................................41.3.3厂用电接线形式..........................
7、................4第2章厂用电负荷计算及变压器的选择................................72.1厂用电负荷的分类.............................................72.2厂用电负荷的计算原则.......................................102.3厂用负荷的计算方法.........................................102.3.1换算系数法................
8、..................................102.3.2电动机计算功率确定.....................................102.4厂用变压器的选择............................................142.4.1额定电压................................