Hloov fais fab mov transformer nrhiav kom tau txoj kev
1. Xyuas seb puas muaj tej yam txawv txav los ntawm kev soj ntsuam cov tsos ntawm lub transformer. Piv txwv li, txawm hais tias cov coil leads puas lawm los yog desoldered, seb cov ntaub ntawv rwb thaiv tsev puas muaj scorch cov cim, seb cov hlau tseem ceeb fastening ntsia hlau yog xoob, seb cov silicon steel ntawv yog xeb, seb lub winding coil raug, thiab lwm yam.
2. Kev ntsuas rwb thaiv tsev. Siv multimeter R × 10k nplai los ntsuas qhov ntsuas qhov tseem ceeb ntawm cov tub ntxhais thiab cov thawj, thawj thiab txhua theem nrab, cov tub ntxhais thiab txhua theem nrab, cov txheej txheem electrostatic shielding thiab cov theem nrab, thiab cov windings theem nrab. Lub multimeter pointer yuav tsum taw tes rau ntawm txoj hauj lwm infinity. txav. Txwv tsis pub, qhov kev ua haujlwm rwb thaiv tsev ntawm lub transformer tsis zoo.
3. Kev kuaj xyuas cov coil txuas ntxiv. Muab lub multimeter tso rau hauv R × 1 iav. Thaum lub sij hawm xeem, yog hais tias tus nqi kuj ntawm ib tug tej yam winding yog infinite, nws txhais tau hais tias qhov no winding muaj ib tug qhib Circuit Court txhaum.
4. Paub qhov txawv ntawm cov coils thawj thiab theem nrab. Thawj tus pin thiab tus pin thib ob ntawm lub zog hloov pauv feem ntau yog kos los ntawm ob sab raws li, thiab thawj winding feem ntau yog cim nrog 220V, thaum lub voj voog thib ob yog cim nrog tus nqi hluav taws xob, xws li 15V, 24V, 35V, thiab lwm yam. Tom qab ntawd txheeb xyuas raws li cov cim no.
5. Kev kuaj xyuas tsis muaj kev thauj khoom tam sim no.
a. Kev ntsuas ncaj qha. Qhib tag nrho cov windings theem nrab, muab lub multimeter nyob rau hauv AC tam sim no qhov chaw (500mA), thiab txuas nws nyob rau hauv series mus rau thawj winding. Thaum lub ntsaws ntawm thawj winding yog muab tso rau hauv 220V AC mains, lub multimeter qhia qhov tsis muaj nqi tam sim no. Tus nqi no yuav tsum tsis txhob yog Nws yog ntau tshaj 10% mus rau 20% ntawm tag nrho cov load tam sim no ntawm lub transformer. Qhov ib txwm tsis muaj-load tam sim no ntawm cov khoom siv hluav taws xob siv hluav taws xob sib txawv yuav tsum nyob ib puag ncig 100mA. Yog tias nws dhau ntau dhau lawm, nws txhais tau hais tias lub transformer muaj qhov cuam tshuam luv luv.
b. Indirect ntsuas txoj kev. Ib qho 10Ω / 5W resistor txuas nrog hauv series mus rau thawj winding ntawm lub transformer, thiab theem nrab yog tseem unloaded tag. Teem lub multimeter rau AC voltage. Tom qab siv hluav taws xob, siv ob qhov kev sim ua rau ntsuas qhov ntsuas hluav taws xob poob U hla qhov resistor R, thiab tom qab ntawd siv Ohm txoj cai los xam qhov tsis muaj tam sim no I, uas yog, kuv=U / R. F? Kev kuaj xyuas qhov tsis muaj hluav taws xob. Txuas lub hauv paus ntawm lub zog hloov hluav taws xob mus rau 220V lub zog hluav taws xob, thiab siv lub tshuab hluav taws xob sib txuas rau AC voltage los ntsuas qhov tsis muaj qhov hluav taws xob ntawm txhua qhov winding (U21, U22, U23, U24) raws li qhov yuav tsum tau ua. tus nqi. Qhov kev tso cai yuam kev yog feem ntau: high voltage winding Tsawg dua los yog sib npaug rau ± 10%, low-voltage winding Tsawg dua los yog sib npaug rau ± 5%, qhov sib txawv voltage ntawm ob pawg ntawm symmetrical windings nrog nruab nrab kais yuav tsum tsawg dua los yog sib npaug. ± 2%.
6. Feem ntau, qhov tso cai kub nce ntawm lub zog me me fais fab transformers yog 40 degree ~ 50 degree . Yog tias cov khoom siv rwb thaiv tsev siv yog qhov zoo, qhov tso cai kom sov tuaj yeem nce ntxiv.
7. Tshawb xyuas thiab txheeb xyuas qhov kawg ntawm txhua qhov winding. 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, tib terminals ntawm txhua winding 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 yuav tsis ua haujlwm zoo.
8. Kev tshawb nrhiav thiab kev txheeb xyuas cov kev ua txhaum luv luv hauv lub zog hloov hluav taws xob. Cov tsos mob tseem ceeb tom qab qhov kev ua txhaum luv luv tshwm sim hauv lub zog hloov hluav taws xob yog cov cua sov hnyav thiab qhov txawv txav ntawm qhov nruab nrab winding output voltage. 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 hnyav dua qhov hloov hluav taws xob cua sov. Ib txoj hauv kev yooj yim los kuaj xyuas thiab txiav txim siab 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 yav dhau los). Tus nqi tsis muaj load tam sim no ntawm lub transformer nrog luv luv-circuit txhaum yuav ntau dua 10% ntawm tag nrho-load tam sim no. Thaum qhov luv luv Circuit Court yog qhov hnyav, lub tshuab hloov pauv yuav ua kom sov sai sai li ntawm kaum vib nas this tom qab tsis muaj lub zog hluav taws xob, thiab cov tub ntxhais hlau yuav hnov kub thaum kov nws nrog koj txhais 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.
