摘要变电站对于整个供配电系统是非常重要的。它承担着转换和分配电能的重要作用。我们这次设计是以武汉纺织大学阳光校区为原型，根据阳光校区目前的供配电系统的情况，针对校区的用电负荷设计的一个变电站系统，它由一个总的开闭所加上箱变的方式组成。是由我们根据计算的校区实际用电负荷，以及考虑安全用电、节能、经济合理以及校区发展等因素，在老师的指导下对校区的电力系统进行的优化设计。关键词:变电所；负荷；短路电流；继电保护ABSTRACTSubstationisveryimportantforthewholepowersupplyanddistributionsystem.Itplaysanimportantroleintheconversionanddistributionofelectricalenergy.ThisdesignisbasedontheWuhanTextileUniversityCampussunshineastheprototype,accordingtothecurrentcampussunshinepowersupplysystem,thecampuselectricityloaddesignofasubstationsystem,itconsistsofatotaloftheopeningandclosingoftheplusboxform.Weareaccordingtothecalculationofthecampusactualpowerload,andconsiderthesafeuseofelectricity,energysaving,economicandreasonablecampusdevelopmentandotherfactors,theoptimumdesignofpowersystemoncampusareundertheguidanceofteachers.Keywords:substation;load;short-circuitcurrent;relayprotection目录引言11.设计任务....................................................................................................................21.1原始资料....................................................................................................................21.1.1设计题目...............................................................................................................21.1.2设计要求...............................................................................................................21.1.3设计依据...............................................................................................................21.2设计任务....................................................................................................................42.负荷分析计算和无功补偿...............................................................................42.1负荷等级划分及要求...........................................................................................42.2负荷计算的目的和方法......................................................................................52.2.1负荷计算的目的................................................................................................52.2.2负荷计算的方法.................................................................................................52.3功率因数和无功功率补偿的计算...................................................................72.4学校各栋建筑的负荷计算..................................................................................82.5无功补偿计算.........................................................................................................123.变电所及变压器的选择..................................................................................163.1变电所的类型.........................................................................................................163.2变电所位置的确定..............................................................................................163.2.1变电所位置选择的原则...............................................................................163.2.2负荷中心的确定..............................................................................................173.2.3本设计变电所的位置确定...........
