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1、.毕业设计(论文)工厂供电设计学生姓名:学生学号:院(系):电气信息工程学院年级专业:04级电气工程与自动化指导教师:二〇〇七年六月攀枝花学院本科毕业设计(论文)摘要摘要本毕业设计为工厂变电所设计,对在工厂变电所设计中的若干问题:负荷计算,三相短路分析,短路电流计算,高低压设备的选择与校验,变压器的继电保护,变电所二次回路及自动装置,防雷与接地,变电所的过电压保护,计量,无功补偿等几方面的设计进行了陈述,并对供电主接线的拓扑结构进行了阐述。该工厂变电所采用10kV单电源进线,采用一台1600kVA的主变压器,最大设备容量1636
2、kW,采用并联电容器进行低压集中补偿,对变压器进行过电流,电流速断,瓦斯保护,按三类防雷建筑物设防,采用强弱电联合接地系统对建筑物进行保护。在对供电系统短路计算的基础上,进行电力电缆和电气设备的选择设计,同时也对户外平面布置进行了初步的设计。关键词工厂供配电,继电保护,防雷与接地,负荷计算Ⅰ攀枝花学院本科毕业设计(论文)ABSTRACTABSTRACTThisgraduationprojectisdesignedforthefactorytransformersubstation,tocertainquestionsinfact
3、orytransformersubstationdesign:theloadcomputation,theanalysisofthree-phaseshort-circuits,theshort-circuitcurrentcomputation,thechoiceandverificationofhighandlowpressureequipment,thetransformerrelayprotection,thesecondarycircuitofthetransformersubstationandtheautomati
4、cdevice,anti-thunderandtheconnectiontotheearth,thetransformersubstationovervoltageprotection,themeasurement,theidleworkcompensatedandsoon,Alltheaboveaspectsandthestructureofthepowersupplyhostwiringtopologyhavebeenstated.Thetransformersubstationwitha10kVsinglepowersou
5、rcecoilinituses1600kVAmaintransformer,thebiggestcomputationshouldersofwhichis1636kW.Itadoptstheshuntedcapacitortocarryonthelowpressurecentralismforcompensationandsetsprotectionforthetransformerbycarringontheelectriccurrenttoitbreakingthespeedoftheflowgasprotection,ga
6、rrisonsaccerdingtothethirdkindofanti-thunderbuildings,andusersthestrongandweakelectricityunionearthsystemtocarryontheprotectiontothebuilding.Basedonthecomputationofshort-circuitstothepowersupplysystem,theprojecthasachoicedesignofthepowercableandtheelectricalequioment
7、andapreliminarydesigntotheoutdoorsplanearrangementatthesametime.Keywordsthepowerdistributionandsupplyinfactory,therelayprotection,anti-thunderandtheconnectiontoearth,theloadcomputationII攀枝花学院本科毕业设计(论文)ABSTRACTII攀枝花学院本科毕业设计(论文)目录目录摘要……………………………………………………………………………………………
8、ⅠABSTRACT………………………………………………………………………………………ⅡI攀枝花学院本科毕业设计(论文)目录1绪论……………………………………………………………………………………………11.1课题设计背景…………………………………………………………