题目某火力发电厂的电气一次设计摘要自从第二次工业革命以来，电力能源就作为主要能源为全世界的经济发展做出了突出贡献。火力发电厂依然是主要的获取能源方式之一，其中电气一次设计对于实际发电效率具有深远的影响，所以在设计中选择合适的接线模式对于火力发电具有重要意义。在火力发电厂中，电气系统最主要的就是电气主接线。在满足安全性，可靠性和经济性的前提下，本文介绍了火力发电厂的设计思路，设计过程，包括主接线选择，变压器选择，断路器选择等，以当前火力发电厂电气一次设计工作开展的情况为基础，深入探究火力发电厂中电气一次设计的技术要点，旨在提高电气一次设计的科学性与合理性，为提高发电效率提供保障。关键词：火力发电厂；电气一次设计；技术要点；主接线；短路电流ABSTRACTSincetheSecondIndustrialRevolution,powerenergyhasmadeoutstandingcontributionstotheworld'seconomicdevelopmentasthemainenergysource.Thermalpowerplantisstilloneofthemainwaystoobtainenergy.Theprimaryelectricaldesignhasafar-reachingimpactontheactualpowergenerationefficiency.Therefore,itisimportanttoselecttheappropriatewiringmodeinthedesignforthermalpowergeneration.Inthermalpowerplants,themainelectricalwiringisthemostimportantpartoftheelectricalsystem.Accordingtotherequirementsofsafety,reliability,advancedtechnologyandeconomicrationalityinaccordancewiththerelevantnationalstandards,thispaperintroducesthedesignideaanddesignprocessofthermalpowerplants,includingtheselectionofmainwiring,transformerandcircuitbreaker.Basedonthecurrentsituationofprimaryelectricaldesignofthermalpowerplants,thispaperdeeplyexplorestheprimaryelectricaldesigntechnologyinthermalpowerplants.Themainpointsaretoimprovethescientificityandrationalityofprimaryelectricaldesignandtoprovideguaranteeforimprovingpowergenerationefficiency.Keywords:ThermalPowerPlant;PrimaryElectricalDesign;TechnicalKeyPoints;MainWiring;ShortCircuitCurrent;目录绪论...............................................................................................................................1第一章发电机与主变压器的选择.................................................................................21.1选择主变压器.....................................................................................................21.1.1主变压器的选择.......................................................................................21.1.2主变压器台数的确定..............................................................................21.1.3变压器相数的确定..................................................................................21.1.4变压器绕组数的确定..............................................................................31.1.5绕组的接线方式的确定..........................................................................31.1.6本厂变压器的选择结果...........................................................................31.2选择发电机.........................................................................................................31.2.1概述..........................................................................................................31.2.2发电机选择结果.......................................................................................4第二章电气一次设计的主接线....................................................................................52.1概述....................................................................................................................52.1.1主母线的接...
