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1、電能是工業(yè)生產(chǎn)的主要能源和動力。在現(xiàn)代工業(yè)及整個國民經(jīng)濟生產(chǎn)中應(yīng)用極為廣泛,其原因是電能與其他形式能量轉(zhuǎn)換方便,控制簡單。變電所作為電力系統(tǒng)的中轉(zhuǎn)站,具有極其重要的作用。本設(shè)計是針對毛紡廠變電所設(shè)計的。設(shè)計包括廠區(qū)高壓配電所和車間變電所兩部分。廠區(qū)高壓配電所采用雙電源進線,單母線分段運行方式;車間變電所采用單回路進線,單母線運行,一臺變壓器工作,給380V負荷供電。依據(jù)毛紡廠的實際情況,進行負荷計算,本次設(shè)計采用需要系數(shù)法進行計算。由于其自然功率因數(shù)小于0.9,不符合電力規(guī)程要求,因此采用無功補償?shù)姆椒ㄌ岣吖β室驍?shù),合理選擇變配電所所址,靠近負荷中心
2、,進出線方便,交通運輸便利,同時也冇充分的發(fā)展空間。正確選擇主變壓器容量和臺數(shù)。利用標幺值法對高、低壓側(cè)確定的短路點進行短路計算,從而對所選電氣設(shè)備進行校驗,本廠設(shè)備選型全部采用我國最新設(shè)備。對變壓器設(shè)計了保護電路,本次設(shè)計主要裝設(shè)過電流保護,電流速斷保護,瓦斯保護等.還進行了防雷和接地保護,測量儀表等方面的研究。本設(shè)計的全過程嚴格遵守國家標準設(shè)計規(guī)范,并根據(jù)毛紡廠的實際情況,從根本上保證系統(tǒng)在任何條件下都能安全、可靠、優(yōu)質(zhì)、經(jīng)濟地供電。關(guān)鍵詞:電能;變電所;電力變壓器;電氣設(shè)備AbstractElectricenergyisprimaryenerg
3、yandpower.Ithaswidelybeenusedinmodernindustrialproductionandallsectorofnationaleconomy.Becauseit,sveryconvenienttochangetheotherformenergyandtobecontrolled.Thesubstationhastheextremelyvitalrole,asthestopoverstationoftheelectricalpowersystem.Thisdesignisforthesubstationofthewool
4、enmill.Itincludesboththefactory,sdistributionandtheworkshop,ssubstation.Thefactory'sdistributionadoptdoublesourcescoinin,moreover,theconnectionmannerofhighvoltagesidesystemissinglebussubsection.Theworkshop'ssubstationusesinglesourcescoinin,moreovertheconnectionmanneroflowtensio
5、nsidesystemissinglebus.Thesubstationtakesonetransformerstorunforsupplyingmainlyelectricenergytotheloadof380V.Accordingtotherealsituationofthewoolenmill,wecancalculateload.Thisdesignadoptsthemethodofneedingcoefficienttocalculate.OwingoftheSILfactoroftheentiresubstationdoesiftmee
6、ttherequirementoftheelectricpowerrule,ifitlow0.9,weneedtoadoptthemodernofcompensatethatconcentratelowvoltagetoraisetheSILfactorforthedesign.Atthesametimewemustchoosetheaddressofthedistributionandsubstationforensureitclosedthecentreoftheload,itiseasytoenterorexitfortheline;andit
7、isconvenienttotransport.Weneedtoadoptthecorrectmoderntoselectcapacityandnumberofthemainlytransformer.Perunitvaluemeasureisusedtocarrythroughshortcircuitcalculationtotheshortdotswhicharedefinedbyhighvoltagesideandlowtensionsidesoastocorrecttheelectricequipmentthatarechosen.Wedes
8、ignthesavingelectricforthetransformer.Thetransformerwa