Cov khoom siv hauv tsev feem ntau siv cov khoom siv hluav taws xob, yog tias tsis ua haujlwm, nws yog ib qho tseem ceeb uas yuav tsum paub yuav ua li cas xyuas lub transformer nrog multimeter. Qhov no yuav txo tau tus nqi kho cov cuab yeej. Nws yuav txaus kom xaj ib qho tshiab lossis kho qhov qub transformer. Yog tias koj ua txhua yam ntawm koj tus kheej, kev txuag ntawm kev kuaj mob yuav yog qhov tseem ceeb.
Methods
Nws raug nquahu kom paub koj tus kheej ua ntej nrog cov lus nug ntawm yuav ua li cas txhawm rau txheeb xyuas lub tshuab hluav taws xob nrog multimeter. Qhov no yog txoj hauv kev yooj yim tshaj los daws teeb meem thiab txuag kev kho. Cov coils tuaj yeem kuaj tau los ntawm kev ntsuas kev tiv thaiv hauv ohmmeter hom. Thaum lub sij hawm ntsuas tus txheej txheem, lub hom phiaj yog los txiav txim lub xeev ntawm cov windings los ntawm cov yam ntxwv ntawm qhov ntau thiab tsawg, tam sim no, voltage.
Koj tuaj yeem paub yuav ua li cas ntsuas lub tshuab hloov pauv nrog lub ntsuas ntsuas yog tias koj xav txog qhov yooj yim tshaj plaws hluav taws xob Circuit Court. Cov kev sib txuas siv: load resistance, mov circuit, transformer windings. Kev ntsuas yog nqa tawm hauv ammeter, voltmeter hom. Sib piv cov nqi tau nrog cov nqi hla tebchaws.
Kev tshuaj xyuas sab nraud ntawm kev puas tsuajwindings pab ua kom yooj yim rau kev kuaj xyuas txoj haujlwm thiab sai sai seb yuav kuaj xyuas lub transformer nrog multimeter li cas. Ua ntej tshaj plaws, kev ntsuas yog coj los ntawm cov hlau lead uas muaj cov rwb thaiv tsev puas lossis qhov chaw charred. Qhov tsis kam yog feem ntau underestimated nyob rau hauv xws li mob, los yog ib tug luv luv Circuit Court yog pom.
Txhob Cia Siab
hom ohmmeter yog siv ntau dua thaum txiav txim siab seb yuav kuaj xyuas kev noj qab haus huv ntawm lub tshuab hloov pauv nrog multimeter li cas. Nyob rau hauv tus txheej txheem ntawm lub thiaj li hu ua "dialing", cov lus xaus ntawm lub windings yog txiav txim yog hais tias tsis muaj cov cim. Cov tswv yim winding feem ntau muaj qhov ua haujlwm siab txog li ntau pua ohms - qhov no yog kauj ruam-down transformer.
Qhov me me ntawm qhov hloov pauv, qhov siab dua qhov kev tiv thaiv ntawm thawj winding yuav qhia qhov ntsuas nrog multimeter. Ib qho kev so yuav pom tam sim ntawm qhov screen, nrog rau qhov luv luv Circuit Court yuav pom ib qho infinity kos npe. Txhua qhov tso zis winding yog ringed ntawm cov ntaub ntawv transformer kom tshem tawm cov dej ntws tawm. Qhov kawg ua rau txo qis voltage thiab sib txawv ntawm cov cuab yeej los ntawm hom nominal.
Voltage
Transformer windings tuaj yeem kuaj xyuas los ntawm kev ntsuas cov tswv yim thiab cov zis voltages. Lub dt 832 multimeter yuav pab nrog qhov no, uas yog thawj zaug txiav txim siab nrog cov winding ua nyob rau hauv hom ohmmeter. Voltage yog siv rau lub hauv paus (muaj qhov ua haujlwm siab rau cov kauj ruam-down), lub voltmeter txuas nrog rau theem nrab (tsis kam tiv).
Hauv voltmeter hom dt 832 yog ntsuasdeviation ntawm qhov tau txais voltage los ntawm cov ntaub ntawv hla tebchaws. Yog tias qhov ua yuam kev ntau tshaj 20%, ces nws tuaj yeem xaus lus tias qhov hloov pauv tsis raug. Hauv qhov no, ib qho kev cuam tshuam Circuit Court tshwm sim. Cov windings yuav tsum tau ua tib zoo tshuaj xyuas rau charring ntawm lub rwb thaiv tsev.
Thaum koj qhib lub network tom qab ib ntus koj tuaj yeem hnov qab, qhov no tseem ua rau cov rwb thaiv tsev yaj. Xws li ib tug transformer yog tsis pom zoo kom loaded, nws twb ua tsis tau tejyam. Lwm qhov qhia meej meej ntawm kev cuam tshuam luv luv yog qhov nce cua sov ntawm winding ntawm lub teeb thauj khoom lossis hauv hom tsis ua haujlwm.
Nuances
Qee transformer windings tsis tuaj yeem rang. Nws raug nquahu kom them sai sai rau lub xub ntiag ntawm microassembly soldered rau hauv cov ntaub ntawv transformer. Qhov no tej zaum yuav yog ib tug rectifier Circuit Court ntawm cov zis winding los yog lub suab nrov lim.
Lub winding yuav tsis nplhaib nrog kev ua haujlwm siab, qhov tsis muaj kev nyeem ntawv hauv qhov no tsis qhia tias ua haujlwm tsis zoo. Tsis tas li ntawd tsis txhob hnov qab xyuas qhov luv luv rau hauv av, yog tias qhov kev tiv thaiv ntawm windings yog nyob rau hauv kev txiav txim. Txhua qhov tso zis ntawm lub cuab yeej raug kuaj xyuas.
Kev ua haujlwm tsis ruaj khov ntawm lub tshuab hloov pauv tuaj yeem yog vim qhov hloov pauv ntawm qhov hluav taws xob hauv lub hauv paus. Ntxiv mus, tus nqi ntawm idling, thaum tsuas yog thawj winding txuas nrog, yuav nyob rau hauv qhov kev txwv. Nyob rau hauv load, lub hwj chim yuav "sag" heev.
Nyob zoo malfunctions
Thaum kuaj xyuas cov txheej txheem ntawm lub tshuab hloov pauv, kuaj pom cov teeb meem hauv qab no:
- Sibwindings - tiv thaiv infinity.
- Tig-rau-tig luv luv Circuit Court - tiv thaiv hauv qab rooj qhov tseem ceeb.
- Voltage thiab tam sim no sib txawv.
- luv luv rau lub cev - winding melts, cov khoom fuse yog qhib.
Sab nraud, koj tuaj yeem txiav txim siab hom transformer, lub hom phiaj yog txiav txim siab raws li daim duab hluav taws xob. Cov kauj ruam-down xaim yog thicker ntawm qhov tso zis, lub boost hlau yog thicker nyob rau hauv lub tswv yim. Raws li, thawj winding ntawm kauj ruam-down muaj kev tiv thaiv siab, thiab tus nqi nce qib muaj qhov tso zis ntau dua.
Lub windings ntawm lub cuab yeej muaj zog tsis tuaj yeem kuaj xyuas nrog lub ntsuas ntsuas. Hauv qhov no, cov cuab yeej tshwj xeeb thiab cov khoom siv hluav taws xob ntxiv yog siv rau kev kuaj mob. Hauv hom ohmmeter, koj tuaj yeem tshawb xyuas yuav luag txhua lub tsev hloov pauv: hauv chargers, TVs thiab lwm yam khoom siv.
