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los ntawm DBreg2007

Ua haujlwm ntawm kev pib hloov tsheb

Ua haujlwm ntawm kev pib hloov tsheb
Muaj qee zaus thaum ib tug yuav tsum tau qhov voltage siab dua los yog qis dua. Ntau tus neeg yuav xav tias tau txais qhov sib txawv ntawm qhov sib txawv nrog cov khoom siv AC ruaj khov yog qhov nyuaj. Tab sis qhov tseeb, qhov ruaj khov AC voltage tuaj yeem hloov mus rau hauv qhov sib txawv AC voltage siv lub tshuab hluav taws xob pib.
Lub tshuab hluav taws xob pib yog lub tshuab hluav taws xob uas lub hauv paus thiab theem nrab windings txuas nrog hluav taws xob kom ib feem ntawm cov winding yog feem ntau rau ob qho tib si windings.Nyob rau hauv tsab xov xwm no, peb yuav tham txog kev tsim kho thiab kev ua haujlwm ntawm lub tshuab hluav taws xob pib.
Nws pib transformer muaj xws li ib tug tooj liab hlau. Cov hlau yog feem ntau rau ob qho tib si thawj thiab theem nrab circuit. Cov hlau tooj liab raug mob nyob ib puag ncig ntawm silicon steel core. Peb cov kais dej yog muab rau cov windings uas muab peb theem ntawm cov zis voltage. Lub hauv paus thiab theem nrab windings yog txuas nrog hluav taws xob thiab txuas hlau nplaum. Cov cuab yeej no ua rau nws pib transformers pheej yig dua, me me thiab muaj txiaj ntsig zoo rau qhov ntsuas hluav taws xob tsawg dua peb lub tshuab hloov hluav taws xob. Tsis tas li ntawd, ib qho pib transformer muaj qis reactance, qis poob, me me excitation voltage thiab kev cai zoo dua piv rau nws ob winding counterpart.
Lub hauv paus ntsiab lus ua haujlwm tseem ceeb ntawm lub tshuab hluav taws xob pib yog nce lossis nqis qis qis. Lawv muaj xws li ib tug winding. Thawj qhov hluav taws xob yog siv nyob rau hauv ob kawg ntawm winding. Thawj thiab theem nrab qhia tib qhov nruab nrab. Qhov thib ob voltage yog tau hla ib qho ntawm tapping thiab qhov nruab nrab point.
Lub zog hloov pauv tsuas yog siv qhov chaw los ntawm cov txheej txheem ntawm conduction. Tsuas yog ib feem me me ntawm lub zog yog pauv inductively. Qhov voltage ib tig yog tib yam nyob rau hauv thawj thiab thib ob xaim. Qhov voltage tuaj yeem sib txawv los ntawm tsuas yog sib txawv ntawm tus naj npawb ntawm lem. Ib lub davhlau ya nyob twg txuas nrog ib qho ntawm tapping thaum lwm qhov txuas nrog qhov nruab nrab. Ib qho pib transformer tsis muaj dab tsi tab sis ib qho piv txwv ob winding transformer txuas rau hauv txoj kev tshwj xeeb.
Nyob rau hauv ib tug pib transformer, lub input thiab output zog yuav luag sib npaug. Nws muaj ntau qhov zoo dua piv rau cov pa transformers. Nws pab txhawb kev sib txawv ntawm qhov sib txawv ntawm qhov hluav taws xob, muaj txiaj ntsig zoo dua li cov khoom siv hluav taws xob sib txawv, yuav tsum muaj cov khoom siv hluav taws xob tsawg dua, me dua thiab tsis tshua muaj nqi, tsis tshua muaj tooj liab poob thiab muaj peev xwm tswj tau qhov hluav taws xob zoo dua piv rau ob lub winding transformer.
Qhov kev txwv tseem ceeb ntawm nws pib-transformer yog qhov tseem ceeb thiab theem nrab tsis yog hluav taws xob cais. Tej yam tsis zoo ntawm lub hauv paus yuav cuam tshuam rau cov khoom siv txuas nrog rau theem nrab.
Nws yog tsuas yog siv nyob rau hauv kev soj ntsuam kuaj raws li ib tug pib pib rau induction tshuab.
Lub zog hloov hluav taws xob
Raws li lub npe implies, lub hwj chim transformers hloov voltage. Lawv txoj hauj lwm tseem ceeb yog tuav tsis tshua muaj hluav taws xob thiab high voltage. Qhov ntawd yog high tam sim no Circuit Court thiab qis tam sim no Circuit Court feem. Nws ua haujlwm ntawm Faraday txoj cai.
Lub cev pob txha ntawm lub transformer yog ua los ntawm laminated hlau los xij. Nws yog carved rau hauv ib lub plhaub hom lossis hom tseem ceeb. Cov nplooj ntawv raug mob thiab tom qab ntawd txuas nrog siv cov khoom siv los ua peb 1-theem lossis ib qho 3-theem transformer. Peb 1-theem transformers muaj txhua lub txhab nyiaj cais tawm ntawm lwm tus thiab yog li muab kev pabcuam txuas ntxiv thaum ib lub txhab nyiaj tsis ua haujlwm. Ib qho 3-theem transformer, txawm tias cov tub ntxhais lossis hom plhaub; yuav tsis ua haujlwm txawm tias muaj ib lub txhab nyiaj tawm ntawm kev pabcuam. Qhov no 3-theem transformer, txawm li cas los xij, pheej yig dua rau kev tsim khoom, muaj cov hneev taw me me, thiab ua haujlwm nrog kev ua haujlwm zoo dua.
Cov hlau feem ntawm lub hwj chim transformer yog immersed nyob rau hauv hluav taws kub retardant rwb thaiv tsev roj nyob rau hauv lub tank. Lub conservator nyob rau sab saum toj ntawm lub tank tso cai rau cov roj expanding mus rau hauv nws. Lub load kais hloov pauv nyob rau sab ntawm lub tank tso cai rau kev hloov pauv ntawm tus lej hloov ntawm qhov hluav taws xob siab. Qhov ntawd yog qhov tsawg tam sim no winding rau kev tswj qhov voltage. Cov bushings nyob rau sab saum toj ntawm lub tank tso cai rau cov neeg tsav tsheb nkag mus thiab tawm hauv lub tank kom nyab xeeb.
Lub transformer tuaj yeem ua haujlwm dhau ntawm nws qhov kev ntsuas ib txwm. Fais fab transformers yog haum nrog cov kiv cua uas txias lub transformer core mus rau ib qho taw tes hauv qab qhov ntsuas kub. Tab sis ntev overloading tsis pom zoo vim nws yuav deteriorate lub winding rwb thaiv tsev.
Thawj thiab theem nrab windings ntawm lub transformer, ntawm chav kawm, insulated los ntawm ib leeg, cia siab rau induction txoj cai ib leeg los tsim electromotive quab yuam, nrog rau txoj kev flux cais mus rau laminated los xij ntawm hlau.
Txhawm rau ua kom cov dej ntws tawm, cov windings raug mob xws li lub hnub qub lossis lub hnub qub, ntawm txhua sab. Kev siv cov kev sib txuas no delta-star, lub hnub qub-delta, lub hnub qub-hnub qub, lossis delta-delta ua rau muaj kev cuam tshuam loj rau kev tsim lub zog. Yog li kev xaiv ntawm kev sib txuas yog qhov tseem ceeb.
Lub hnub qub-lub hnub qub txuas nrog transformer tsis tshua siv rau hauv lub zog hluav taws xob. Txawm li cas los xij, txhawm rau muab cov qauv tsim kom zoo dua ntawm lub hnub qub winding thiab cov delta winding, qhov thib peb winding - lub delta tertiary yog tsim rau hauv ob lub hnub qub winding transformer.
Fais fab mov transformers muaj ntau daim ntawv thov. Nws tuaj yeem siv los txuas ib qho:
* Lub txhab nyiaj Capacitor - rau kev kho qhov hluav taws xob lossis hluav taws xob kho
* Reactors - rau kev txwv hauv av txhaum tam sim no
* Resistors - rau kev txwv hauv av txhaum tam sim no
* Chaw nres tsheb kev pabcuam transformer - AC lub zog rau cov khoom siv hauv lub chaw nres tsheb
* Distribution system - rau lub zog rau lub nroog lossis cov neeg siv khoom lag luam