电气专业毕业论文英语翻译文档格式.doc

电气专业毕业论文英语翻译文档格式.doc

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Abstract:

Withthecontinuousdevelopmentofcitysize,moreandmorehigh-risebuildings,therefore,high-risebuildingelectricaldesigntothedesignershadtoface.Inthispaper,anengineeringexample,describestheelectricaldesignofhigh-risebuildingsandsomeofthemoretypicalissuesofuniversalsignificance,combinedwiththeactualpracticeofanengineeringsolutiontotheproblemdescribed.

Keywords:

high-risebuilding;

electricaldesign;

distribution;

loadcalculation

1ProjectOverview

Thecommercialcomplexproject,withatotalconstructionareaof​​405570m2,onthegroundfloorareaof​​272330m2,undergroundconstructionareaof​​133240m2,themainheightof99m.Projectcomponentsare:

twoofficebuildings,constructionareais70800m2,28layers,thestandardstoryis3.2m.

2LoadCalculation

1）Loadcharacteristics:

electricload,muchlargerthanthe"

nationalcivilengineeringtechnicalmeasures"

Large120W/m2indicators,especiallyintheelectricityloadmorefood,anddifferenttypesoffoodandbeveragecateringdifferentculturalbackgroundsalsohigh.

2）theuncertaintyofalargeload,becausethecommercialrealestaterentsareoftenbasedonmarketdemand,andconstantlyadjustthenatureoftheshops,makingtheloadinthedynamicchanges.

3）Thereisnospecificationandtechnicalmeasuresinthedifferenttypesofcommercialprojectsrefertothedetailedparametersoftheshops,engineeringdesignloadcalculationinthelackofdata,inmostcasestorelyonstaffwithpreviousexperienceinengineeringdesigncalculations.

Loadtheselectionofparameters:

fortheaboveproblems,theloadcalculation,thefirstdeveloperofsalesandgoodcommunication,todeterminetheformoflayersoftheformsandnatureoffloorarea,whichiscalculatedonthebasisofelectricalloadbasis;

followedtodetermineparameterindexwithintheunitareaof​​shopsisalsoveryimportantandcomplexbecausethereisnoclearindicatorofthespecificationcanreferto;

anddifferentlevelsofeconomicdevelopmentbetweencitiesisnotbalanced,powerindicesarealsodifferent;

willbeinthesamecity,differentregionshavedifferentconsumergroups.

3）theneedtofactorinthechoice:

parametersdetermined,theneedforloadcalculation.Needtofactorcommonlyusedmethod,thecalculationwillnotrepeatthem.Needtoexploreistheneedforcoefficientselection,whichinthecurrentspecifications,manualsandthe"

unifiedtechnicalmeasures"

isalsonotclearrequirements,basedonyearsofdesignexperiencethatmostendshopsinthedistributionorlevelwithinthehouseholddistributionboxwithcaseKxgenerallytakeawhile,inthecalculationofthelooproutetotake0.7to0.8,thedistributiontransformersinthesubstationcalculationstake0.4to0.6.

3substationsset

Loadcalculationbasedontheresultsofthisprojectthetotalinstalledcapacityoftransformer43400Kv.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.10Kvpowerconfigurationofthisprojectintotwopoints,eachatthetwo10Kvlines,thepowercompanyundertheprovisionsof10Kvpowercapacity:

maximumloadperchannelisaboutto11000Kv.A,twoisthe22000Kv.A,design#1,3#combinationofasubstation10Kv,powerline,withatotalcapacityof21000Kv.A;

2#substationtransformersand10Kv,10Kvchillerssharingapowerline,withatotalcapacityof22400Kv.A.Thedesignofthesubstationlayout,inadditiontomeetingregulatoryrequirements,italsoneedtoconsiderthehigh-pressurecabinets,transformersandlowvoltagepowersupplycabinetbyorderofarrangement,especiallyinlowvoltagedistributioncabinettofeedthecablesmoothandeasyinspectiondutyproblemsarenotseriouslyconsidertheconstructionofthecablecrossingwillcausemorelongdetour,awasteoffloorspace,andconvenientinspectionsandotherissues.

4smallfireloadpowersupply

Inthedesignoflargecommercialprojectsoftenencountersmallfireloadofelectricalequipmentandmoredisperseddistribution,iffedbyasubstation,asubstationwillbefedalotoflow-voltagelow-currentcountercircuitbreakingcapacitycircuitbreakerandconductorofthedynamicandthermalstabilityinacertainextent.AccordingtoGB50045-1995"

fireprotectiondesigno