某小区供配电及其照明系统设计

学院本科毕业设计（论文）摘要I摘要建筑业的发展是人类文明与进步的重要标志，从修建遮蔽风雨的洞穴到今天各种风格和功能的大型建筑物，进入21世纪以来,随着城市规模的不断扩大，小区供配电负荷较大，负荷分配分散以及供电回路数量较多的特点，要提高层建筑配电系统的可靠性，要正确选择各类配电设备的容量，就必须科学、合理的进行负荷计算。在本设计中，要求完成对住宅小区供配电系统设计，主要包括照明系统、低压供配电系统、负荷计算、防雷与接地系统。论文针对住宅小区电气的设计和使用需要，在重点表述低压供配电系统、负荷计算和防雷与接地系统的同时，侧重于电气基本理论和基本知识。设计中，总体按照民用建筑设计规范来建立设计的整体思路，并完成低压供配电、负荷计算、设备选型、照明计算，插座选取。关键词：负荷计算，配电系统，防雷设计，照明学院本科毕业设计（论文）摘要IIAbstractConstructionandprogressofhumancivilizationdevelopmentisanimportantsymbol,fromthecavetoshelterfrombadweathertobuildavarietyofstylesandfunctionsoftoday'slargebuildingintothe21stcentury,withthecontinuousexpansionofcitysize,overtheloadcellpowersupplylarge,decentralizedloaddistributionandcharacteristicsofalargenumberofpowersupplycircuit,toimprovedistributionsystemreliabilitystorybuilding,tocorrectlyselectthecapacityofvarioustypesofdistributionequipment,itmustbescientificandrationalforloadcalculation.Inthisdesign,therequirementsforcompletionoftheresidentialdistributionsystemdesign,includinglighting,lowvoltagepowersupplysystem,loadcalculation,lightningprotectionandgroundingsystems.Thesis,thedesignofresidentialareasandtheuseofelectricalneeds,expressedinthefocusvoltagepowersupplysystem,loadcalculation,andlightningprotectionandgroundingsystematthesametime,focusingonthebasictheoryandbasicelectricalknowledge.Design,civildesignspecificationsinaccordancetotheoveralldesignoftheoverallideaoftheestablishment,andcompletelow-voltagepowersupply,loadcalculation,equipmentselection,lightingcalculations,outletselection.Keywords:loadcalculation,distributionsystems,lightningprotectiondesign,light学院本科毕业设计（论文）目录III目录摘要..............................................................................................................................IAbstract..........................................................................................................................II1绪论...........................................................................................................................11.1前言..................................................................................................................11.2工程概述..........................................................................................................12负荷计算和无功功率计算.......................................................................................22.1概述..................................................................................................................22.2基本理论及计算公式......................................................................................32.3负荷计算和无功功率计算..............................................................................42.4无功功率补偿..................................................................................................62.5年耗电量的估算..............................................................................................73变压器容量和台数的选择.......................................................................................83.1概述..................................................................................................................83.2变电所主变压器容量选择..............................................................................83.3主变压器相数的选择......................................................................................93.4绕组数的选择..................................................................................................93.5主变调压方式的选择....................................................................................103.6连接组别的选择............................................................................................103.7容量比的选择................................................................................................113.8主变压器冷却方式的选择............................................................................113.9方案的确定....................................................................................................114变电所主接线方案的选择.....................................................................................124.1国家对高层建筑的一般规定：....................................................................124.2低压线路接线方式........................................................................................134.3导线和电缆的选择........................................................................................144.4基本要求........................................................................................................144.5具体方案........................................................................................................145短路电流的计算.....................................................................................................185.1短路电流计算的目的及方法........................................................................185.2短路电流的计算............................................................................................185.3确定基准值....................................................................................................185.4计算短路电路中各主要元件的电抗标么值：............................................195.5计算k-1点的短路电流总电抗标么值及三相短路电流和短路容量.........