Yuav xaiv li cas atransformer? Yuav ua li cas txiav txim siab qhov tsim nyog muaj peev xwm ntawm transformer?
Ua ntej tshaj plaws, peb yuav tsum tshawb xyuas qhov hluav taws xob hluav taws xob ntawm qhov chaw siv hluav taws xob, lub zog tiag tiag ntawm cov neeg siv thiab cov xwm txheej ntawm qhov chaw nws nyob, thiab tom qab ntawd xaiv ib qho los ntawm ib qho raws li cov ntaub ntawv qhia. nyob rau hauv lub transformer nameplate. Feem ntau, lub peev xwm, qhov hluav taws xob, tam sim no thiab ib puag ncig ntawm lub transformer yuav tsum raug txiav txim siab. Ntawm lawv, kev xaiv lub peev xwm Lub peev xwm yuav tsum tau txiav txim siab raws li lub peev xwm, qhov xwm txheej thiab kev siv lub sijhawm ntawm tus neeg siv khoom siv hluav taws xob, thiaj li xaiv lub peev xwm ntawm lub tshuab hluav taws xob.
Thaum lub sijhawm ua haujlwm ib txwm muaj, cov khoom siv hluav taws xob hloov pauv yuav tsum dais yog li 75 txog 90% ntawm lub peev xwm ntsuas ntawm lub transformer. Thaum qhov tseeb load ntawm lub transformer yog ntsuas kom tsawg dua 50% thaum lub sij hawm ua hauj lwm, lub me-capacity transformer yuav tsum tau hloov. Yog hais tias lub load yog ntau tshaj li qhov ntsuas muaj peev xwm ntawm lub transformer, lub loj-muaj peev xwm transformer yuav tsum tau hloov tam sim ntawd.
Nyob rau tib lub sijhawm, thaum xaiv lub tshuab hloov pauv, txiav txim siab tus nqi hluav taws xob ntawm thawj kauj ntawm lub tshuab hloov pauv raws li cov kab hluav taws xob, thiab xaiv cov nqi hluav taws xob ntawm cov kauj thib ob raws li cov khoom siv hluav taws xob. Nws yog qhov zoo tshaj los xaiv qhov tsawg-voltagepeb-theemplaub-xaim fais fab mov. Qhov no tuaj yeem muab ob lub zog thiab teeb pom kev zoo hluav taws xob tib lub sijhawm.
Thaum xaiv qhov tam sim no, kev saib xyuas yuav tsum tau them rau seb qhov kev thauj khoom tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub cev muaj zog thaum nws pib (vim tias qhov pib tam sim no ntawm lub cev muaj zog yog 4 mus rau 7 npaug ntau dua li ntawm kev ua haujlwm sinking).
Vim li cas transformers tsis tuaj yeem overloaded?
Kev ua haujlwm dhau los txhais tau hais tias tus nqi tam sim no tau teev tseg ntawm daim ntawv teev npe yog tshaj thaum lub tshuab hloov pauv tau ua haujlwm.
Nyob rau hauv cov xwm txheej tshwj xeeb, kev ua haujlwm dhau ntawm lub tshuab hloov pauv hauv lub sijhawm luv luv tsis tuaj yeem tshaj 30% ntawm cov ntsuas ntsuas (lub caij ntuj no), thiab nws yuav tsum tsis pub tshaj 15% hauv lub caij ntuj sov.
Yuav ua li cas cov kev ntsuam xyuas yuav tsum tau ua nyob rau hauv lub transformer thaum lub sij hawm ua hauj lwm?
Txhawm rau kom ntseeg tau tias lub tshuab hloov pauv tuaj yeem ua haujlwm tau zoo, cov kev sim hauv qab no yuav tsum tau ua ntau zaus:
(1) Kev ntsuas kub. Txawm hais tias lub transformer ua haujlwm ib txwm los tsis yog thiab seb qhov kub thiab txias yog qhov tseem ceeb heev. Cov kev cai lij choj hais tias cov roj kub siab yuav tsum tsis pub tshaj 85C (uas yog, qhov kub thiab txias yog 55C). Feem ntau, transformers yog nruab nrog tshwj xeeb ntsuas kub.
(2) Load ntsuas. Txhawm rau txhim kho kev siv tus nqi ntawm lub transformer thiab txo qhov poob ntawm lub zog hluav taws xob, lub peev xwm ntawm cov khoom siv hluav taws xob uas lub transformer tuaj yeem dais tiag tiag yuav tsum tau ntsuas thaum lub sijhawm ua haujlwm ntawm lub tshuab hloov pauv. Kev ntsuas kev ua haujlwm feem ntau yog ua tiav thaum lub sijhawm siv hluav taws xob siab tshaj plaws hauv txhua lub caij, thiab ntsuas ncaj qha nrog lub clamp ammeter. Tus nqi tam sim no yuav tsum yog 70 mus rau 80% ntawm qhov ntsuas tam sim no ntawm transformer. Yog tias nws tshaj, nws qhia tias overload thiab yuav tsum tau kho tam sim ntawd.
(3) Kev ntsuas hluav taws xob. Cov kev cai yuav tsum muaj qhov sib txawv ntawm qhov voltage yuav tsum nyob rau hauv ± 5% ntawm qhov ntsuas voltage. Yog tias nws tshaj qhov ntau, cov kais dej yuav tsum tau siv los kho qhov hluav taws xob mus rau qhov chaw teev tseg. Feem ntau, lub voltmeter yog siv los ntsuas qhov nruab nrab coil davhlau ya nyob twg voltage thiab lub davhlau ya nyob twg voltage ntawm tus neeg siv kawg.
