1. Lub tshuab hluav taws xob hloov hluav taws xob li cas?
Lub transformer yog tsim los ntawm electromagnetic induction. Nws muaj cov tub ntxhais hlau ua los ntawm silicon steel los xij (lossis silicon steel los xij) thiab ob txheej coils raug mob ntawm cov tub ntxhais hlau. Cov tub ntxhais hlau thiab cov coils yog insulated los ntawm ib leeg thiab tsis muaj hluav taws xob sib txuas.
Nws tau raug lees paub tias qhov sib piv ntawm qhov voltage ntawm thawj kauj thiab theem nrab kauj ntawm lub transformer muaj feem xyuam rau qhov piv ntawm tus naj npawb ntawm cov lem ntawm thawj kauj thiab theem nrab kauj, uas tuaj yeem qhia los ntawm cov qauv hauv qab no: thawj kauj. voltage/secondary coil voltage = thawj kauj hloov/secondary kauj hloov. Qhov ntau tig, qhov voltage ntau dua. Yog li ntawd, nws tuaj yeem pom tau tias yog cov kauj ruam thib ob tsawg dua li thawj kauj ruam, nws yog kauj ruam-down transformer. Ntawm qhov tsis sib xws, nws yog ib kauj ruam-up transformer.
2. Tam sim no txoj kev sib raug zoo ntawm thawj kauj thiab theem ob ntawm lub transformer yog dab tsi?
Thaum lub transformer khiav nrog ib tug load, qhov kev hloov nyob rau hauv lub thib ob kauj tam sim no yuav ua rau ib tug coj hloov nyob rau hauv thawj kauj tam sim no. Raws li lub hauv paus ntsiab lus ntawm magnetic muaj peev xwm sib npaug, nws yog inversely proportional rau tam sim no ntawm thawj thiab theem nrab coils. Tam sim no nyob rau sab nrog ntau lem yog me me, thiab tam sim no nyob rau sab nrog tsawg lem yog loj.
Nws tuaj yeem qhia los ntawm cov qauv hauv qab no: thawj kauj tam sim no / theem nrab coil tam sim no = theem nrab coil hloov / thawj kauj ruam hloov.
3. Yuav ua li cas kom ntseeg tau tias lub transformer muaj qhov ntsuas hluav taws xob tso zis?
Qhov hluav taws xob uas siab dhau lossis qis dhau yuav cuam tshuam rau kev ua haujlwm ib txwm muaj thiab kev pabcuam lub neej ntawm lub tshuab hluav taws xob, yog li kev tswj hwm hluav taws xob tsim nyog.
Cov txheej txheem ntawm kev tswj hluav taws xob yog coj tawm ob peb kais dej hauv thawj kauj ruam thiab txuas lawv mus rau tus kais hloov pauv. Tus kais hloov pauv hloov tus lej hloov ntawm lub kauj los ntawm kev tig cov neeg sib cuag. Ntev npaum li txoj haujlwm ntawm tus kais hloov pauv hloov, qhov yuav tsum tau ntsuas qhov ntsuas hluav taws xob tuaj yeem tau txais. Nws yuav tsum tau muab sau tseg tias kev cai voltage feem ntau yuav tsum tau ua tom qab lub load txuas nrog lub transformer raug txiav tawm.
4. Dab tsi yog qhov poob ntawm lub transformer thaum ua haujlwm? Yuav ua li cas thiaj txo tau qhov poob?
Kev poob hauv kev ua haujlwm transformer muaj ob ntu:
(1) Nws yog tshwm sim los ntawm cov tub ntxhais hlau. Thaum lub coil yog energized, cov kab sib nqus ntawm lub zog yog alternating, ua rau eddy tam sim no thiab hysteresis poob nyob rau hauv cov tub ntxhais hlau. Qhov kev poob no yog sib sau ua ke hu ua hlau poob.
(2) Nws yog tshwm sim los ntawm qhov tsis kam ntawm lub kauj nws tus kheej. Thaum tam sim no dhau los ntawm thawj thiab theem nrab coils ntawm transformer, lub zog poob yuav raug generated. Qhov kev poob no hu ua tooj liab poob.
Cov txiaj ntsig ntawm hlau poob thiab tooj liab poob yog qhov poob ntawm transformer. Cov kev poob no muaj feem xyuam nrog lub peev xwm ntawm lub tshuab hluav taws xob, qhov hluav taws xob thiab kev siv cov khoom siv. Yog li ntawd, thaum xaiv ib tug transformer, cov cuab yeej muaj peev xwm yuav tsum ua raws li qhov tseeb kev siv ntau npaum li sai tau los txhim kho cov khoom siv, thiab kev saib xyuas yuav tsum tsis txhob ua haujlwm ntawm lub tshuab hluav taws xob hauv lub teeb.
5. Lub npe ntawm lub transformer yog dab tsi? Cov ntaub ntawv tseem ceeb ntawm daim ntawv teev npe yog dab tsi?
Lub npe ntawm lub transformer qhia txog kev ua tau zoo, kev specifications thiab daim ntawv thov scenarios ntawm lub transformer kom tau raws li tus neeg siv cov kev xaiv. Cov ntaub ntawv tseem ceeb uas yuav tsum tau them rau thaum xaiv yog:
(1) Lub kilovolt-ampere ntawm qhov ntsuas muaj peev xwm. Ntawd yog, qhov tso zis muaj peev xwm ntawm lub transformer nyob rau hauv rated tej yam kev mob. Piv txwv li, lub peev xwm ntsuas ntawm ib theem transformer = U kab× Kuv kab; lub peev xwm ntawm peb-theem transformer = U kab× kuv kab.
(2) Kev ntsuas hluav taws xob hauv volts. Qhia lub davhlau ya nyob twg voltage ntawm lub hauv paus kauj thiab lub davhlau ya nyob twg voltage ntawm lub thib ob kauj (thaum tsis txuas nrog ib tug load) feem. Nco ntsoov tias lub davhlau ya nyob twg voltage ntawm peb-theem transformer yog hais txog kab voltage U kab nqi.
(3) Qhov ntsuas tam sim no hauv amperes. Hais txog txoj kab tam sim no kuv kab tus nqi uas thawj kauj thiab cov kauj theem ob tau tso cai kom dhau mus ntev nyob rau hauv cov xwm txheej ntawm qhov ntsuas muaj peev xwm thiab tso cai rau qhov kub thiab txias.
(4) Voltage piv. Hais txog qhov sib piv ntawm qhov ntsuas hluav taws xob ntawm lub hauv paus kauj rau qhov ntsuas hluav taws xob ntawm lub kauj thib ob.
(5) Txoj kev xaim. Ib-theem transformer tsuas muaj ib txheej siab thiab qis voltage coils thiab tsuas yog siv rau ib-theem siv xwb. Peb-theem transformer muaj Y /△hom. Ntxiv nrog rau cov ntaub ntawv saum toj no, kuj tseem muaj qhov ntsuas zaus, tus naj npawb ntawm theem, qhov kub thiab txias, impedance feem pua ntawm transformer, thiab lwm yam.
6. Yuav ua li cas kev ntsuam xyuas ntawm lub transformer thaum lub sij hawm ua hauj lwm?
Txhawm rau kom ntseeg tau tias qhov kev ua haujlwm ib txwm muaj ntawm transformer, cov kev sim hauv qab no yuav tsum tau ua ntau zaus:
(1) Kev ntsuas kub. Qhov kub thiab txias yog qhov tseem ceeb heev los txiav txim siab seb lub tshuab hloov pauv puas ua haujlwm li qub. Cov kev cai teev tseg tias cov roj kub siab yuav tsum tsis pub tshaj 85C (piv txwv li, 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 muab hluav taws xob uas lub tshuab hluav taws xob tuaj yeem dais yuav tsum tau ntsuas thaum lub sijhawm ua haujlwm ntawm lub tshuab hluav taws xob. 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 70-80% ntawm qhov ntsuas tam sim no ntawm transformer. Yog tias nws tshaj qhov ntau, nws txhais tau tias overload thiab yuav tsum tau kho tam sim ntawd.
(3)Kev ntsuas hluav taws xob. Cov kev cai hais kom cov voltage variation range yuav tsum nyob rau hauv±5% ntawm qhov ntsuas voltage. Yog tias nws tshaj qhov ntau, tus kais dej yuav tsum tau siv los kho qhov hluav taws xob mus rau qhov 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.
Xaus: Koj Tus Neeg Muaj Peev Xwm Muaj Peev Xwm Muaj Peev Xwm Xaiv JZPrau koj qhov kev faib hluav taws xob xav tau thiab paub qhov txawv qhov zoo, kev tsim kho tshiab, thiab kev ntseeg siab tuaj yeem ua. Peb Ib Theem Pad-Mounted Transformers yog tsim los ua kom muaj kev ua tau zoo dua, ua kom koj lub zog ua haujlwm tau zoo thiab ua tau zoo. Tiv tauj peb hnub no kom paub ntau ntxiv txog peb cov khoom thiab peb tuaj yeem pab koj ua tiav koj lub hom phiaj kev faib hluav taws xob li cas.
Post lub sij hawm: Lub Xya hli ntuj-19-2024