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1、專業(yè)文檔某冶金機(jī)械廠總降壓變電所及配電系統(tǒng)設(shè)計(jì)摘要隨著我國(guó)國(guó)民經(jīng)濟(jì)的飛速發(fā)展，工業(yè)對(duì)電力的需求也越來越迫切。隨著中國(guó)工業(yè)規(guī)模的不斷擴(kuò)大，對(duì)電力供應(yīng)的安全性、可靠性提出了更高的要求，因此電力系統(tǒng)與用戶直接關(guān)聯(lián)的供電系統(tǒng)尤為重要。作為供電系統(tǒng)的主要組成部分，電氣設(shè)備的質(zhì)量及其性能的先進(jìn)性是決定供電系統(tǒng)安全可靠運(yùn)行的前提條件之一。本設(shè)計(jì)根據(jù)該冶金機(jī)械廠的相關(guān)資料和實(shí)際情況，對(duì)該廠的總降壓變電所和高壓供電系統(tǒng)進(jìn)行設(shè)計(jì)。本設(shè)計(jì)首先根據(jù)工廠提供的資料對(duì)工廠的負(fù)荷情況進(jìn)行了計(jì)算，根據(jù)負(fù)荷情況對(duì)變壓器的容量和臺(tái)數(shù)進(jìn)行了選擇。該廠電源由某變電所以35kV雙回路架空線引出，本設(shè)計(jì)選擇在該廠設(shè)立總
2、降壓變電所先將電壓降為廠區(qū)供電電壓10kV，在由各車間變電所降為負(fù)荷所需電壓。為保證供電系統(tǒng)的可靠性，總降壓變電所采用單母線分段式接線方式，廠區(qū)供電系統(tǒng)采用放射式接線方式。通過計(jì)算，本設(shè)計(jì)對(duì)各變電所的主要電氣設(shè)備、電纜和母線進(jìn)行了選擇和校驗(yàn)，對(duì)一次側(cè)主要設(shè)備進(jìn)行了繼電保護(hù)整定，對(duì)避雷和接地裝置進(jìn)行了選擇。關(guān)鍵詞：變電所；供電系統(tǒng)；電氣設(shè)備WORD資料可編輯專業(yè)文檔WORD資料可編輯專業(yè)文檔TitleADesignofHighVoltagePowerSupplySystemandSubstationforOneMetallurgicalMachineryPlantAbstrac
3、tWiththerapiddevelopmentofChinesenationaleconomy,demandofindustrialelectricityisalsomoreurgent.WiththeconstantexpansionofChineseindustry,thesecurityofelectricitysupply,higherrequirementsforreliability,powersystemandtheuserthereforedirectlyrelatedtothepowersupplysystemisparticularlyimportant
4、.Asamajorcomponentofpowersupplysystem,electricalequipmentqualityandperformanceofadvancedpowersupplysystemistodeterminethesafeandreliableoperationofoneoftheprerequisites.ThedesignofMetallurgicalMachineryPlantundertherelevantinformationandcircumstances,theplant'sgeneralstepdownsubstationandhi
5、ghvoltagepowersupplysystemdesign.First,thedesignofinformationprovidedundertheplantloadfactoryconditionswerecalculated,accordingtoloadsituationonthetransformercapacityandnumberswereselected.Theplantispoweredbyasubstationto35kVdoublecircuitoverheadlineextraction,theestablishmentofthedesigncho
6、icesintheplantreducedthetotalvoltagestep-downsubstationplantfirstsupplyvoltage10kV,theloadisreducedbytheplantsubstationrequiredvoltage.Toensurethereliabilityofpowersupplysystem,thetotalstep-downsubstationsinglebussegmentalwiring,thefactorypowersupplysystemwithradialterminals.Bycalculating,t
7、hedesignofthemainelectricalsubstationequipment,cablesandbusselectionandvalidationcarriedoutonthelightningprotectionandgroundingdevicesofchoice.Keywords：Substation;PowerSystem；ElectricalEquipmentWORD資料可編輯專業(yè)文檔目次1緒論11.1工廠供電的意義及要求11.2工廠供電設(shè)計(jì)的一般原則21.3設(shè)計(jì)的具體內(nèi)容21
