电气外文文献及翻译.docx

Powersupplysystemofhigh-risebuildingdesignAbstract:Withthecontinuousdevelopmentofcitysize,moreandmorehigh-risebuildings,therefore,high-risebuildingelectricaldesigntothedesignershadtoface.Inthispaper,anengineeringexample,describestheelectricaldesignofhigh-risebuildingsandsomeofthemoretypicalissuesofuniversalsignificance,combinedwiththeactualpracticeofanengineeringsolutiontotheproblemdescribed.Keywords:high-risebuilding;electricaldesign;distribution;loadcalculation1 ProjectOverviewThecommercialcomplexproject,withatotalconstructionareaof405570m2,onthegroundfloorareaof272330m2,undergroundconstructionareaof133240m2,themainheightof99m.Projectcomponentsare:twoofficebuildings,constructionareais70800m2,28layers,thestandardstoryis3.2m.2 1.oadCalculation1) 1.oadcharacteristics:electricload,muchlargerthanthe,'nationalcivilengineeringtechnicalmeasures*1.arge120Wm2indicators,especiallyintheelectricityloadmorefood,anddifferenttypesoffoodandbeveragecateringdifferentculturalbackgroundsalsohigh.2) theuncertaintyofalargeload,becausethecommercialrealestaterentsareoftenbasedonmarketdemand,andconstantlyadjustthenatureoftheshops,makingtheloadinthedynamicchanges.3) Thereisnospecificationandtechnicalmeasuresinthedifferenttypesofcommercialprojectsrefertothedetailedparametersoftheshops,engineeringdesignloadcalculationinthelackofdata,inmostcasestorelyonstaffwithpreviousexperienceinengineeringdesigncalculations.1.oadtheselectionofparameters:fortheaboveproblems,theloadcalculation,thefirstdeveloperofsalesandgoodcommunication,todeterminetheformoflayersoftheformsandnatureoffloorarea,whichiscalculatedonthebasisofelectricalloadbasis;followedtodetermineparameterindexwithintheunitareaofshopsisalsoveryimportantandcomplexbecausethereisnoclearindicatorofthespecificationcanreferto;anddifferentlevelsofeconomicdevelopmentbetweencitiesisnotbalanced,powerindicesarealsodifferent;willbeinthesamecity,differentregionshavedifferentconsumergroups.4) theneedtofactorinthechoice:parametersdetermined,theneedforloadcalculation.Needtofactorcommonlyusedmethod,thecalculationwillnotrepeatthem.Needtoexploreistheneedforcoefficientselection,whichinthecurrentspecifications,manualsandthe"unifiedtechnicalmeasures"isalsonotclearrequirements,basedonyearsofdesignexperiencethatmostendshopsinthedistributionorlevelwithinthehouseholddistributionboxwithcaseKxgenerallytakeawhile,inthecalculationofthelooproutetotake0.7to0.8,thedistributiontransformersinthesubstationcalculationstake0.4to0.6.3 substationsset1.oadcalculationbasedontheresultsofthisprojectthetotalinstalledcapacityoftransformer43400Kv.A,afterrepeatedconsultationswiththepowercompany,respectively,intheprojectinnorthern,centralandsouthernthreesectionssetthethreebuildingsintothreepowersubstations,1#set6sets2500Kv.Atransformersubstation,takethenorthernsectionofpowersupply;2#41600Kv.Atransformersubstationslocated,plus6sets2000Kv.Atransformers,takethemiddleofthepowersupply,inadditionto5Taiwan10Kv.Ahigh-pressurewaterchillers(total4000Kv.A);3#substationlocated2unitsplus2units1000Kv.A2000Kv.Atransformers,takethesouthernsectionofA,Btwoofficesupply.IOKvpowerconfigurationofthisprojectintotwopoints,eachatthetwoIOKvlines,thepowercompanyundertheprovisionsofIOKvpowercapacity:maximumloadperchannelisaboutto11000Kv.A,twoisthe22000Kv.A,design#1,3#combinationofasubstation10Kv,powerline,withatotalcapacityof21000Kv.A;2#substationtransformersand10Kv,IOKvchillerssharingapowerline,withatotalcapacityof22400Kv.A.Thedesignofthesubstationlayout,inadditiontomeetingregulatoryrequirements,italsoneedtoconsiderthehigh-pressurecabinets,transformersandlowvoltagepowersupplycabinetbyorderofarrangement,especiallyinlowvoltagedistributioncabinettofeedthecablesmoothandeasyinspectiondutyproblemsarenotseriouslyconsidertheconstructionofthecablecrossingwillcausemorelongdetour,awasteoffloorspace,andconvenientinspectionsandotherissues.4 smallfireloadpowersupplyInthedesignoflargecommercialprojectsoftenencountersmallfireloadofelectricalequipmentandmoredisperseddistribution,iffedbyasubstation,asubstationwillbefedalotoflow-voltagelow-currentcountercircuitbreakingcapacitycircuitbreakerandconductorofthedynamicandthermalstabilityinacertainextent.AccordingtoGB50045-199511fireprotectiondesignoftallbuildings,nrule11shouldbeusedinFireEquipmentdedicatedpowersupplycircuit,thepowerdistributionequipmentshallbeprovidedwithclearsigns."Interpretationoftheprovisionsofthepowersupplycircuitmeans"fromthelow-voltagemaindistributionroom(includingthedistributionofelectricalroom)tolastadistributionbox,andthegeneraldistributionlinesshouldbestrictlyseparated.,Inthisdesign,theuseofmethodstoincreasethelevelofdistribution,thatisdifferentfromthesubstationbussegments,respectively,afirefedaspecialcircuit,setinplacetwodistributioncabinets,distributioncabinetsandthentheresultingradialallocatedtotheendofthedualpowertovoteeachbox,sothatnotonlymeetsthespecificationrequirementsfordedicatedpowersupplycircuit,butalsotoavoidfeedingthesubstationlevelofmanysmallcurrentloop.5 ,thechoi