Hloov fais fab mov transformer nrhiav kom tau cov txheej txheem
1. Tshawb xyuas lub transformer saib seb puas muaj teeb meem pom. Piv txwv li, txawm hais tias cov hlau tseem ceeb ntawm cov ntsia hlau fastening yog xoob, seb cov ntaub ntawv silicon steel puas yog xeb, txawm tias cov coil winding raug, txawm tias cov hlau lead hlau tawg los yog desoldered, txawm tias cov khoom siv insulating muaj cov cim scorch, thiab lwm yam.
Kev ntsuas rwb thaiv tsev. Siv lub multimeter R10k, hloov lub multimeter ntawm cov tub ntxhais hlau thiab cov thawj, theem nrab, hlau tub ntxhais thiab theem nrab, electrostatic shielding txheej thiab theem nrab, thiab theem nrab windings. Yog tsis yog, nws qhia tau hais tias lub transformer lub insulating kev ua tau zoo yog subpar.
3. Coil on/off detection. Ib tug multimeter yuav tsum tau teem rau R1. Yog hais tias lub winding tus nqi kuj yog infinite thaum lub sij hawm xeem, lub winding muaj ib tug qhib Circuit Court tsis xws luag.
4. Sib txawv ntawm thawj thiab theem nrab coils. Thawj thiab thib ob tus pins ntawm lub zog hloov hluav taws xob feem ntau yog kos los ntawm ob sab, thiab qhov thib ob winding yog sau nrog cov ntsuas hluav taws xob, xws li 15V, 24V, lossis 35V. Thawj winding ntawm lub hwj chim transformer feem ntau yog cim nrog 220V. Tom qab ntawd, raws li cov cim no, txheeb xyuas lawv.
5. Kev kuaj xyuas tsis muaj kev thauj khoom tam sim no.
Kev ntsuas ncaj qha (a). Muab lub multimeter nyob rau hauv AC tam sim no cov cuab yeej (500mA) nrog tag nrho cov thib ob windings qhib, thiab txuas nws nyob rau hauv series nrog thawj winding. Lub multimeter qhia txog qhov tsis muaj kev thauj khoom tam sim no thaum thawj winding lub ntsaws yog hooked rau hauv 220V AC mains. Yuav tsum tsis txhob muaj tus nqi no Nws tshaj 10 feem pua mus rau 20 feem pua ntawm cov transformer tag nrho load tam sim no. Feem ntau, lub zog hloov hluav taws xob ntawm cov khoom siv hluav taws xob ib txwm yuav tsum tsis muaj qhov tam sim no ntawm 100 mA. Nws qhia txog qhov teeb meem luv luv hauv lub transformer yog tias nws dhau ntau dhau.
b. Txoj kev ntsuas ntsuas tsis ncaj. Ib qho 10? / 5W resistor txuas nrog hauv cov koob nrog thawj winding ntawm lub transformer, thiab cov theem nrab tseem yog tag nrho unloaded. Tig lub multimeter rau AC voltage. Tom qab siv hluav taws xob, siv ob qhov kev sim ua rau ntsuas qhov ntsuas qhov ntsuas hluav taws xob poob U hla cov resistor R, thiab tom qab ntawd siv Ohm txoj cai los xam qhov tsis muaj load tam sim no kuv khoob, uas yog, kuv khoob=U / R. F? Kev kuaj xyuas qhov tsis muaj hluav taws xob. Txuas lub hauv paus ntawm lub hwj chim transformer mus rau 220V mains, thiab siv ib tug multimeter los ntsuas qhov tsis muaj-load voltage tus nqi ntawm txhua winding (U21, U22, U23, U24) nyob rau hauv lem, uas yuav tsum tau raws li qhov yuav tsum tau tus nqi. Qhov kev tso cai yuam kev yog feem ntau: high voltage winding Tsawg dua los yog sib npaug rau ± 10 feem pua, low-voltage windings Tsawg dua los yog sib npaug li ± 5 feem pua, thiab qhov sib txawv ntawm qhov sib txawv ntawm ob pawg ntawm symmetrical windings nrog nruab nrab kais yuav tsum tsawg dua los yog sib npaug ± 2 feem pua.
6. Feem ntau, qhov tso cai kub nce ntawm lub zog me me fais fab transformers yog 40 degree txog 50 degree. Yog tias qhov zoo ntawm cov khoom siv insulating siv tau zoo dua, qhov tso cai kom sov tuaj yeem nce ntxiv.
7. Tshawb xyuas thiab txiav txim qhov kawg ntawm txhua qhov winding nrog tib lub npe. Thaum siv lub tshuab hluav taws xob hloov hluav taws xob, qee zaum ob lossis ntau qhov sib txuas sib txuas sib txuas tuaj yeem txuas rau hauv cov khoom siv txhawm rau kom tau txais qhov xav tau theem nrab voltage. Thaum siv lub hwj chim transformer nyob rau hauv series, cov terminals nrog tib lub npe ntawm cov windings koom nyob rau hauv lub series yuav tsum tau kev cob cog rua kom raug thiab tsis tuaj yeem yuam kev. Txwv tsis pub, lub transformer tsis tuaj yeem ua haujlwm zoo.
8. Kev tshawb pom dav dav thiab kev txiav txim siab ntawm luv luv-circuit yuam kev ntawm lub hwj chim transformers. Cov tsos mob tseem ceeb tom qab lub luv luv-circuit txhaum ntawm lub hwj chim transformer yog cua sov hnyav thiab txawv txav tawm voltage ntawm lub thib ob winding. Feem ntau, ntau qhov sib cuam tshuam luv luv-circuit cov ntsiab lus hauv lub kauj, qhov luv luv tam sim no ntau dua thiab qhov kub ntawm transformer loj dua. Txoj hauv kev yooj yim los kuaj xyuas thiab txiav txim seb lub tshuab hluav taws xob puas muaj qhov cuam tshuam luv luv yog ntsuas qhov tsis muaj kev thauj khoom tam sim no (txoj kev sim tau qhia ua ntej). Rau lub transformer nrog ib tug luv luv-circuit txhaum, nws tsis muaj-load tam sim no tus nqi yuav ntau dua 10 feem pua ntawm tag nrho-load tam sim no. Thaum lub luv luv Circuit Court yog hnyav, lub transformer yuav ua kom sov sai li sai tau nyob rau hauv kaum vib nas this tom qab tau powered los ntawm tsis muaj load, thiab cov tub ntxhais hlau yuav hnov kub thaum kov los ntawm tes. Nyob rau lub sijhawm no, nws tuaj yeem txiav txim siab tias muaj qhov luv luv Circuit Court taw tes nyob rau hauv lub transformer yam tsis tau ntsuas qhov tsis muaj load tam sim no.
