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1、河南城建學(xué)院本科畢業(yè)設(shè)計(jì)(論文)摘要本次所設(shè)計(jì)的課題是某住宅小區(qū)供電系統(tǒng)的設(shè)計(jì),該供電系統(tǒng)是有兩個(gè)配電室和一個(gè)開閉所組成的住宅小區(qū)專用的降壓變電系統(tǒng),具有10kV和380V兩個(gè)電壓等級(jí),10kV一側(cè)接與110kV變電站的10kV母線,380V主要用于小區(qū)用戶的用電。本次所設(shè)計(jì)的供電系統(tǒng)是非常重要的,如果系統(tǒng)出故障了,將影響整個(gè)住宅小區(qū)的供電,所以可靠性要求很高。所以這次設(shè)計(jì)必須考慮到供電系統(tǒng)的安全性、可靠性及經(jīng)濟(jì)性。本說明書通過對(duì)變電站的主接線設(shè)計(jì),短路電流計(jì)算,主要電氣設(shè)備型號(hào)和參數(shù)的確定,電氣設(shè)備的動(dòng)熱穩(wěn)定校驗(yàn),備用電源的自動(dòng)投入設(shè)計(jì),無功補(bǔ)償設(shè)計(jì),防雷和過電壓保護(hù)裝置
2、的設(shè)計(jì)較為詳細(xì)地完成了電力系統(tǒng)中變電站的設(shè)計(jì)。本次設(shè)計(jì)論文是以我國(guó)現(xiàn)行的各有關(guān)規(guī)范規(guī)程等技術(shù)標(biāo)準(zhǔn)為依據(jù),所設(shè)計(jì)是一次初步設(shè)計(jì),根據(jù)任務(wù)書提供原始資料,參照有關(guān)資料及書籍,對(duì)各種方案進(jìn)行比較而得出。關(guān)鍵詞 配電室;短路計(jì)算;無功補(bǔ)償;備用電源投入I河南城建學(xué)院本科畢業(yè)設(shè)計(jì)(論文)1緒論AbstractThedesignofthisresidentialareaisthesubjectofthepreliminarydesignof10kVpowersupplysystem,thepowerdistributionsystem,therearetworoomsandanopen
3、ingandclosingaresidentialareaconsistingofadedicatedstep-downtransformersystemwith10kVand380V2avoltage,10kVand110kVsubstationsideoftheaccessbus10kV,380Velectricitymainlyforresidentialusers.Thepowersupplysystemdesignedisveryimportant,ifthesystemisbroken,theentireresidentialareawillaffectthep
4、owersupply,sothehighreliabilityrequirements.Therefore,thedesignmusttakeintoaccountthepowersystemsecurity,reliabilityandeconomy.Thismanualwiringthroughthemainsubstationdesign,shortcircuitcurrentcalculation,themainelectricalequipmenttodeterminethemodelandparameters,electricalequipment,thedyn
5、amicthermalstabilitytest,automaticbackuppowersupplydesign,reactivepowercompensationdesign,lightningprotectionandovervoltageprotectionDevicecompletedindetailthedesignofsubstationsinpowersystem.Thisdesignthesisisbasedonourcurrentnormsoforderandotherrelevanttechnicalstandardsasthebasis,thedes
6、ignisapreliminarydesign,accordingtomandateoftheoriginalbooktoprovideinformation,referenceinformationandbooks,tocomparethevariousprogramswhichhavecome.Keywords Distributionroom;Short-circuitcalculation;Reactivepowercompensation;BackupPowerInput目錄摘要IAbstractII目錄III1緒論11.1課題背景11.2設(shè)計(jì)的目的和基本要求11
7、.3論文研究的主要內(nèi)容22.1負(fù)荷計(jì)算32.1.1計(jì)算負(fù)荷的意義及計(jì)算目的32.1.2電力負(fù)荷的分級(jí)及其對(duì)供電的要求32.1.3確定計(jì)算負(fù)荷系數(shù)42.1.4求計(jì)算負(fù)荷的方法42.15負(fù)荷資料52.2.1主變壓器的選擇原則62.2.2主變臺(tái)數(shù)的確定62.2.3主變壓器容量的確定72.2.4主變壓器型號(hào)的確定73電氣主接線的設(shè)計(jì)93.1電氣主接線設(shè)計(jì)93.1.1電氣主接線設(shè)計(jì)的重要性93.1.2電氣主接線設(shè)計(jì)的步驟93.2開閉所及配電室位置和數(shù)量的設(shè)計(jì)103.2.1電氣主接線的基本形式103.2.2各接線的適用范圍10