文档介绍：洛阳理工学院毕业设计(论文)I供配电一次系统设计摘要工厂供电系统就是将电力系统的电能降压再分配电能到各个厂房或车间中去,它由工厂降压变电所,高压配电线路,车间变电所,低压配电线路及用电设备组成。工厂总降压变电所及配电系统设计,是根据各个车间的负荷数量和性质,生产工艺对负荷的要求,以及负荷布局,,经济技术的分配电能问题。其基本内容有以下几方面:短路电流的计算及继电保护,电气设备的选择,变电所变压器的选择、校验、容量的选择,无功补偿,防雷接地装置设计等。关键词:配电线路变压器负荷短路电流电气设备洛阳理工学院毕业设计(论文)IITheDesignofPrimarySystemofTotalStep-downSubstationABSTRACTFactorypowersupplysystemistopowersystemofpowerstep-downredistributionelectricalenergyintoeachplantorworkshop,itbyfactorystep-downsubstation,highpressuredistributionline,workshopsubstation,low-,ordingtotheloadquantityandnatureofeachworkshop,productionprocess,,:thecalculationofshort-circuitcurrent,relayprotection,electricalequipmentchoice,thechoiceoftransformersubstation,calibration,capacitychoice,pensation,lightningprotectiongroundingdevicedesign,:distributionlist,supplytransformer,powerload,short-circuitcontact,electricapparatus洛阳理工学院毕业设计(论文)III目录前言............................................................................................................1第1章负荷计算...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................7第2章变压器选择.........................................................................................................