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1、工廠供電設(shè)計(jì)摘要本畢業(yè)設(shè)計(jì)為工廠變電所設(shè)計(jì)，對(duì)在工廠變電所設(shè)計(jì)中的若干問題：負(fù)荷計(jì)算，三相短路分析，短路電流計(jì)算，高低壓設(shè)備的選擇與校驗(yàn)，變壓器的繼電保護(hù)，變電所二次回路及自動(dòng)裝置，防雷與接地，變電所的過電壓保護(hù)，計(jì)量，無功補(bǔ)償?shù)葞追矫娴脑O(shè)計(jì)進(jìn)行了陳述，并對(duì)供電主接線的拓?fù)浣Y(jié)構(gòu)進(jìn)行了闡述。該工廠變電所采用10kV單電源進(jìn)線，采用一臺(tái)1600kVA的主變壓器，最大設(shè)備容量1636kW，采用并聯(lián)電容器進(jìn)行低壓集中補(bǔ)償，對(duì)變壓器進(jìn)行過電流，電流速斷，瓦斯保護(hù)，按三類防雷建筑物設(shè)防，采用強(qiáng)弱電聯(lián)合接地系統(tǒng)對(duì)建筑物進(jìn)行保護(hù)。在對(duì)供電系統(tǒng)短路計(jì)算的基礎(chǔ)上，進(jìn)行電力電纜和電氣設(shè)備的選擇設(shè)計(jì)，同時(shí)也對(duì)戶
2、外平面布置進(jìn)行了初步的設(shè)計(jì)。關(guān)鍵詞工廠供配電，繼電保護(hù)，防雷與接地，負(fù)荷計(jì)算ⅠABSTRACTThisgraduationprojectisdesignedforthefactorytransformersubstation,tocertainquestionsinfactorytransformersubstationdesign:theloadcomputation,theanalysisofthree-phaseshort-circuits,theshort-circuitcurrentcomputation,thechoiceandverificationofhighandlow
3、pressureequipment,thetransformerrelayprotection,thesecondarycircuitofthetransformersubstationandtheautomaticdevice,anti-thunderandtheconnectiontotheearth,thetransformersubstationovervoltageprotection,themeasurement,theidleworkcompensatedandsoon,Alltheaboveaspectsandthestructureofthepowersupplyhos
4、twiringtopologyhavebeenstated.Thetransformersubstationwitha10kVsinglepowersourcecoilinituses1600kVAmaintransformer,thebiggestcomputationshouldersofwhichis1636kW.Itadoptstheshuntedcapacitortocarryonthelowpressurecentralismforcompensationandsetsprotectionforthetransformerbycarringontheelectriccurre
5、nttoitbreakingthespeedoftheflowgasprotection,garrisonsaccerdingtothethirdkindofanti-thunderbuildings,andusersthestrongandweakelectricityunionearthsystemtocarryontheprotectiontothebuilding.Basedonthecomputationofshort-circuitstothepowersupplysystem,theprojecthasachoicedesignofthepowercableandtheel
6、ectricalequiomentandapreliminarydesigntotheoutdoorsplanearrangementatthesametime.Keywordsthepowerdistributionandsupplyinfactory,therelayprotection,anti-thunderandtheconnectiontoearth,theloadcomputationIIII目錄摘要……………………………………………………………………………………………ⅠABSTRACT………………………………………………………………………………………ⅡI1緒論………………
7、……………………………………………………………………………11.1課題設(shè)計(jì)背景………………………………………………………………………………11.2工廠供電設(shè)計(jì)的一般原則…………………………………………………………………11.3工廠供電設(shè)計(jì)內(nèi)容及步驟…………………………………………………………………22負(fù)荷計(jì)算與功率補(bǔ)償…………………………………………………………………………42.1負(fù)荷計(jì)算的內(nèi)容和目的…………………………………………
