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1、摘要随着科技的不断发展和社会的全面进步，人民生活水平不断提高，电力能源已深入到了人们的日常生活和工作中去，对电力工业的发展极其相关问题的研究层出不穷。基于目前我国电力工业飞速发展的现状，结合新型工厂发展的实际要求，倡导“安全、高效、节能”的方针，集变电、配电、照明、自动控制与调节、建筑防雷与保护、电脑设备管理于一体的现代化工厂供用电系统。本设计在充分调查工厂符合设备的情况下，采用需要系数法计算全厂电力负荷，据此与电业部门签订协议，确定供电等级。按照工厂的实际要求进行系统的无功补偿，确定视在计算负荷，将全厂电力负荷按其工作要求的不同分
2、为不同负荷类别，根据工厂发展和规划要求，选择两台厂用主变压器，互为备用的方式相接，保证供电的可靠性。绘制系统主接线图，优选厂区电气设备，根据发热和稳定性要求进行校验，最后确定防雷保护和接地措施，保证提高用电可靠性和经济运行。关键词：供电系统，负荷计算，短路计算，变压器，防雷设计AbstractWithconstantdevelopmentofscienceandtechnologyandtheprogressinginanall-roundwayofthesociety,thelivingstandardsofthepeoplear
3、eimprovingconstantly,theelectricenergyhasalreadygotdeeplytoourdailylifeandwork,thestudyonextremelyrelevantproblemsofdevelopmentofpowerindustryemergesinanendlessstream.Itisonthebasisofthecurrentsituationthatthepowerindustryofourcountrydevelopsatfullspeedatpresenttoorigi
4、nallydesign,combinetheactualdemandfordevelopmentofnew-typefactory,advocatethepolicyof"safe,high-efficient,energy-conservation",collecttheswitchyard,distribution,illumination,automaticallycontrolandregulate,thebuildingdefendthunder,protection,computerequipmentcontroland
5、offerthepowerconsumingsystemintheintegrativemodernchemicalplant.Originallydesignincaseoffullyinvestigatingthefactoryaccordswithequipment,itneedscoefficientlawtocalculatethewholefactorytoloadelectricallytoadopt,signtheagreementwithelectricityindustrydepartmentinviewofth
6、eabove,confirmthegradeofsupplyingpower.Carryonhavingaccordingtoactualdemandoffactoryworkcompensate,confirmapparenttocalculateloadsystematic,electricloaddifferenttodividedifferentloadclassificationintoaccordingtojobrequirementstheirthewholefactory,developandisitrequirea
7、ccordingtofactory,choosetwoplatformfactoryusethemainvoltagetransformertoplan,bothasreservewayandmeet,thedependabilityofguaranteeingtosupplypower.Drawthemainwiringdiagramofsystem,thefactoryelectricequipmentofoptimumseeking,andthestabilitydemandcarryoncheck-upaccordingto
8、generatingheat,confirmfinallythatdefendsthunderprotectionandearthmeasure,guaranteetoimprovethedependabilityandeconomi
