搜索
学号04350403毕业设计说明书石家庄危险废弃物处置中心供电系统设计学生姓名王东亮专业名称电气工程及其自动化指导教师陈建辉电子与信息工程系2008年6月9日2石家庄危险废弃物处置中心供电系统设计Shijiazhuanghazardouswastedisposalcenterpowersupplysystemdesign摘要众所周知，电能是现代工业生产的主要能源和动力。电能既易于由其它形式的能量转换而来，又易于转换为其它形式的能量以供应用；电能的输送的分配既简单经济，又便于控制、调节和测量，有利于实现生产过程自动化。因此，电能在现代工业生产及整个国民经济生活中应用极为广泛。本工程为石家庄危险废弃物处置中心的供电系统设计，该处置中心大部分用电设备属于长期连续负载，全年工作小时数为8760小时，要求不间断供电，主要车间及附属设备均为二级负荷。采用10KV电压等级双回路线路提供电源，单母线分段，放射式接线的设计方案。设计内容包括负荷计算、方案选择、功率补偿计算、短路电流计算、设备选择、二次系统设计、继电器选择、防雷接地设计、照明设计等。由于缺乏经验，设计中有很多不足与疏漏，请老师给予批评指正。关键词：供电系统；计算负荷；短路电流；设备选择；ABSTRACTItiswellknown,theelectricalenergyisthemodernindustryproductionprimaryenergyandthepower.Theelectricalenergybothcomeseasybyotherform'senergyconversion,andeasytotransformforotherformenergysuppliestheapplication;Electricalenergytransportation'sassignmentbothsimpleeconomy,andisadvantageousforthecontrol,theadjustmentandthesurvey,isadvantageousinrealizestheproductionprocessautomation.Therefore,theelectricalenergyappliesinthemodernindustryproductionandtheentirenationaleconomylifeextremelywidely.ThisprojectforShijiazhuanghazardouswastedisposalcenterthepowersupplysystemdesign,thedisposalcenter’sequipmentbelongingtothemajorityoflong-termcontinuousload,annualworkhoursto8760hours,uninterruptedpowersupplyrequirements,themainworkshopandancillaryequipmentare2load.Use10KVdouble-circuitvoltagelinestoprovidepower,sub-bus,radiation-wiringdesign.Designelementsincludeloadcalculation,options,powercompensation,short-circuitcurrentcalculation,equipmentselection,thesecondsystemdesign,choiceoftherelay,minegroundingdesign,lightingdesign.Duetolackofexperience,therearemanyinadequaciesinthedesignandoversight,tocriticizetheteachercorrected.Keywords：PowerSupplySystem;calculatedload;shortcircuit;equipmentselection目录第1章设计原始依据··························································································11.1中心用电设备负荷情况·············································································11.1.1负荷类型·······················································································11.1.2电源情况·······················································································11.1.3供电电价为两部电价········································································21.2气象及其他资料······················································································2第2章设计概况································································································32.1设计内容和要求··································································································32.2设计成果············································································································32.3设计步骤············································································································3第3章全厂负荷计算··························································································53.1负荷概述············································································································53.2全厂各部门负荷计算···························································································53.3补偿前计算负荷··································································································93.3.1NO1计算负荷·····························································································93.3.2NO2计算负荷·····························································································93.3.3NO0计算负荷····························································································10第4章供配电系统方案选择················································································114.1电压的选择········································································································114.2变电所主接线·····································································································114.2.1变电所的构成···························································································114.2.2变电所常用主接线····················································································124.3配电系统接线方式······························································································13第5章功率补偿及变压器选择············································································155.1功率因数和无功功率补偿···················································································155.2变压器的选择·····································································································165.3NO1处变压器·····································································································175.4NO2处变压器·····································································································20第6章短路电流计算························································································236.1短路电流计算的目的及方法·················································································236.2计算各短路点短路电流·······················································································23第7章电气设备的选择与校验···································