600MW火电厂电气主接线方案与设备布置设计600MW火电厂电气主接线方案与设备布置设计摘要本设计是对600MW火电厂新建工程主接线方案与设备布置进行设计，主要运用发电厂电气部分、高电压技术、电力系统分析、电力系统自动化等专业知识完成“发电厂主接线的设计”。具体设计内容包括主接线的接线方案设计、负荷分析计算、变压器选择、配电装置设计、绘制电气主接线图、绘制厂用电接线原理图。本设计严格遵循发电厂电气部分的设计原则，并结合实际情况将主接线的接线方案确定为双母线接线方式，发电机变压器组确定为单元接线。同时，利用换算系数法进行负荷分析计算，高压厂用变压器选择低压分裂绕组变压器，确定了合适的短路点并进行短路电流计算。然后对电气设备的动、热稳定校验，对主要电气设备型号、参数进行确定，设计并绘制了220kV配电装置平面布置图及220kV配电装置断面图。关键词：火电厂；电气主接线；电气设备；配电装置THEMAINELECTRICALWIRINGPROGRAMSANDEQUIPMENTLAYOUTDESIGNOF600MWTHERMAL600MW火电厂电气主接线方案与设备布置设计POWERPLANTABSTRACTThetextisaboutmainwiringprogramsandequipmentlayoutdesignofanewconstructionof600MWthermalpowerplant.UseofPowerPlantElectricalParts,HighVoltageTechnology,PowerSystemAnalysis,PowerSystemAutomationExpertisetocompletethedesignofthemainwiringofpowerplants.Thespecificdesignelementsincludethemainwiringconnectiondesign,loadanalysisandcalculation,transformerselection,designofpowerdistributionequipment,drawelectricalwiringdiagram,drawingauxiliarypowerwiringschematic.Thedesignstrictlyfollowthedesignprinciplesofpowerplantelectricalpart,combinedwiththeactualsituationofthemainwiringconnectionprogramanddeterminedtheprogramforthedual-buswiring,generator-transformersetidentifiedasunitconnection.Atthesametime,usetheconversionfactormethodforloadcalculation,thehigh-voltagestationtransformerselectlow-voltagesplit-windingtransformer,anddeterminetheappropriateshort-circuitpointandshortcircuitcurrentcalculation.Thendeterminedthedynamicandthermalcalibrationofelectricalequipment,determinedtheelectricalequipmentmodels,parameters.Designedanddrewafloorplanof220kVpowerdistributionunitandthesectionaldrawingpowerof220kVdistributionunit.KeyWords:thermalpowerplant;mainelectricalwiring;electricalequipment;powerdistributionequipment目录第一篇设计说明书...................................................................................................................11电气一次接线设计..........................................................................................................11.1发电机电压级接线................................................................................................11.2220kV电气主接线................................................................................................21.36kV厂用电接线....................................................................................................4600MW火电厂电气主接线方案与设备布置设计2负荷计算及变压器选择..................................................................................................52.1厂用负荷计算........................................................................................................52.2主变台数、容量和型式的确定............................................................................82.3厂用变压器台数、容量和型式的确定..............................................................113最大持续工作电流及短路计算....................................................................................143.1各回路最大持...
