Thaum xaiv cov transformers, cov neeg yuav khoom feem ntau them sai sai rau qhov ntsuas qhov muaj peev xwm, qhov sib piv ntawm qhov hluav taws xob, kev ua haujlwm zoo thiab kev ua kom txias. Txawm li cas los xij, impedance voltage yog lwm qhov tseem ceeb, uas cuam tshuam ncaj qha rau kev ua haujlwm ntawm lub transformer, luv luv -circuit tam sim no, thiab stability ntawm lub system voltage.
Raws li lub zog hluav taws xob txuas ntxiv txhim kho nyob rau hauv cov kev taw qhia ntawm kev thauj khoom siab, kev ntseeg siab thiab kev ua haujlwm zoo, cov kev tsis sib xws ntawm cov transformers kuj tau txais kev saib xyuas ntau dua los ntawm engineering tej yaam num. Niaj hnub no, cov kev xav tau rau cov khoom siv hluav taws xob ruaj khov hauv cov chaw ua si, cov phiaj xwm hluav taws xob tshiab, cov tsev lag luam thiab cov khoom loj - nplai tau nce ntxiv. Transformers tsis tsuas yog yuav tsum tau ua kom tau raws li qhov ntsuas qhov muaj peev xwm thiab qhov hluav taws xob, tab sis kuj yuav tsum ua kom haum rau qhov luv luv - lub peev xwm Circuit Court, kev tiv thaiv kev teeb tsa thiab cov yam ntxwv thauj khoom. Nyob rau hauv cov txheej txheem no, txawm hais tias lub impedance voltage tsuas yog ib qho parameter ntawm transformer nameplate, nws yuav ncaj qha cuam tshuam rau luv luv -circuit tam sim no, load voltage hloov, thiab load tis thaum muaj ntau yam transformers khiav nyob rau hauv parallel.
impedance voltage, tseem hu ua luv-circuit impedance voltage, hais txog qhov voltage uas yuav tsum tau ua kom cov rated tam sim no ntws los ntawm lwm winding thaum ib winding luv luv.
Nws feem ntau yog qhia raws li feem pua, xws li 4%, 6%, 8%, lossis 10%.
Piv txwv li, yog tias qhov impedance voltage ntawm lub transformer yog 6%, nyob rau hauv lub luv luv - Circuit Court xeem tej yam kev mob, kwv yees li 6% ntawm nws rated voltage yog yuav tsum tau los tsim cov rated tam sim no.
Nyob rau hauv luv luv, lub impedance voltage sawv cev rau lub internal kuj ntawm lub transformer. Nws yog tsuas yog txiav txim los ntawm yam xws li winding tsim, conductor kev npaj, sib nqus to flux thiab lub cev nyob deb ntawm windings.
Vim li cas impedance voltage tseem ceeb heev?
Thawj qhov tseem ceeb yog qhov luv -circuit tam sim no.
Qhov qis impedance feem ntau tso cai rau luv luv -circuit tam sim no hla, thaum lub impedance siab dua txwv qhov txhaum tam sim no. Qhov no txhais tau hais tias qhov impedance voltage yuav tsum tau txiav txim siab ua ke nrog kev tiv thaiv kev tiv thaiv, Circuit Court breaker, thiab cov khoom siv downstream.
Qhov thib ob yog qhov kev tswj xyuas qhov voltage. Transformers nrog impedance kuj yuav muaj ntau dua voltage nco thaum ua hauj lwm nyob rau hauv hnyav loads. Yog li ntawd, rau cov chaw ua lag luam, cov chaw zov me nyuam, thiab lwm yam rhiab loads, cov specifications ntawm transformers yuav tsum tau raws li qhov tseeb kev khiav hauj lwm tej yam kev mob.
Qhov thib peb kev txiav txim siab yog kev ua haujlwm sib luag.Thaum ob lossis ntau lub tshuab hloov pauv tau ua haujlwm sib luag, lawv cov impedance qhov tseem ceeb yuav tsum phim ntau li ntau tau. Qhov sib txawv ntawm impedance tseem ceeb tuaj yeem ua rau qhov tsis sib xws ntawm kev thauj khoom, piv txwv li, lub tshuab hloov pauv muaj qhov hnyav dua li qhov xav tau.
Tsis muaj ib qho impedance voltage tus nqi siv rau tag nrho cov transformers.
Rau ib txwm faib transformers, tus nqi nruab nrab impedance feem ntau yog txaus. Rau cov tshuab fais fab loj, cov chaw tsim khoom lag luam, lossis cov tshuab uas muaj qhov luv luv - lub peev xwm Circuit Court, tus nqi impedance xav tau tuaj yeem txiav txim siab los ntawm cov lus qhia ntxaws.
Engineers yuav tsum xav txog:
1. Rated peev thiab voltage ntawm transformer
2. Cia siab tias luv luv tam sim no
3.Load yam ntxwv
4.Kev xav poob siab
5. Lub peev xwm tawg ntawm Circuit Court breaker
6. Transformer parallel kev ua haujlwm xav tau
7. Kev tiv thaiv thiab kev teeb tsa relay
Qhov no tau dhau los ua qhov tseem ceeb tshwj xeeb vim tias cov tshuab hluav taws xob niaj hnub no ntxiv cov ntaub ntawv loj, tsim hluav taws xob txuas ntxiv, roj teeb lub zog cia, thiab lwm yam siab - fais fab loads.
Impedance voltage thiab niaj hnub transformer lag luam
Tam sim no, kev lag luam transformer tab tom ntsib kev xav tau zoo dua thiab cov khoom siv nruj dua ntawm cov khoom siv hluav taws xob. Piv txwv li, nyob rau hauv Tebchaws Meskas, kev xav tau ntau ntxiv rau cov chaw zov me nyuam tau ua rau muaj kev ntxhov siab ntxiv rau cov laus daim phiaj xwm txheej thiab cov khoom siv hloov pauv.
Rau cov neeg yuav khoom thoob ntiaj teb, qhov no txhais tau hais tias kev xaiv ntawm transformers yuav tsum tsis txhob ua raws li tus nqi thiab lub sijhawm xa khoom xwb. Technically tsim nyog impedance specifications pab txo cov teeb meem voltage, txhim kho kev sib koom ua txhaum, thiab tsis txhob kim retrofits tom qab installation.
Ntawm Kechang Electric, tus qauv tsim transformer yog raws li tus neeg siv khoom qhov voltage, muaj peev xwm, load yam ntxwv thiab qhov project yuav tsum. Txawm hais tias nws yog roj-immersed transformer, qhuav-hom transformer, los yog lub hwj chim transformer, impedance thiab voltage yog suav hais tias yog ib feem ntawm tag nrho cov hluav taws xob tsim, tsis yog ib tug cais parameter.
Lub transformer tsim nyog tsis yog tus nqi qis tshaj xwb, tab sis nws cov hluav taws xob tsis zoo sib xws rau tag nrho lub zog hluav taws xob.
