火电厂的电气部分设计摘要电能在现代社会中扮演者非常重要的角色，被广泛地应用于工农业，交通运输业，商业贸易，通信以及人民的日常生活中。发电厂将别的形式的能量转换成电能，是电力系统的重要组成部分之一。本文是对配有2台300MW的发电机的火电厂一次部分的初步设计，通过对电气主接线的设计和选择，主变压器的台数、容量和型号的选择，厂用电的设计，短路电流的计算以及配电装置的选择来完成本次设计。同时，在保证设计可靠性的前提下，还要兼顾经济性和灵活性，通过计算论证该火电厂实际设计的合理性与经济性。关键词:火电厂电气部分主接线设计ABSTRACTElectricpowerplaysaveryimportantroleinmodernsocietyandiswidelyusedinindustrialandagricultural,transportation,commercialtrade,communicationandpeople'sdailylife.Powerplantsconvertotherformsofenergyintoelectricalenergyandareanimportantpartofthepowersystem.Thispaperisapreliminarydesignofathermalpowerplantwithtwosetsof300MWgenerators,Throughthedesignandselectionofthemainelectricalwiring,thenumberofmaintransformers,thechoiceofcapacityandmodel,thedesignoftheplantpower,theshortcircuitcurrentCalculationanddistributionequipmenttocompletethedesign.Keywords:thermalpowerplantelectricalpartmainwiringdesign目录摘要..................................................................................................................................................2第一章前言....................................................................................................................................31.1选题的缘由及意义..........................................................................................................31.2本课题的国内外发展现状...............................................................................................3第二章电气主接线的设计............................................................................................................42.1电气主接线的基本要求和设计依据................................................................................42.2主接线的基本接线形式....................................................................................................52.3拟定可行的主接线方案..................................................................................................10第三章主变压器的选择..............................................................................................................103.1主变压器容量的确定.....................................................................................................103.2主变压器型号的确定......................................................................................................11第四章厂用电设计......................................................................................................................124.1厂用电接线的设计原则和接线形式..............................................................................124.2厂用电的接线设计........................................................................................................124.3厂用变压器的选择........................................................................................................13第五章短路电流的计算..............................................................................................................185.1短路电流计算的目的......................................................................................................185.2短路电流计算分析......................
