Transformer lem ratio test yog ib qho tseem ceeb hauv kev ua kom muaj kev ua haujlwm zoo ntawm transformer. Nws yog ib qho kev sim yooj yim tab sis tseem ceeb uas txiav txim siab qhov sib piv ntawm cov thawj thiab theem nrab windings. Los ntawm kev ua qhov kev sim no, peb tuaj yeem xyuas kom meej tias lub tshuab hloov pauv yuav ua tau zoo, ua tau zoo, thiab nyab xeeb.
Lub transformer lem ratio xeem yuav ua tau siv ob txoj kev - txoj kev voltage thiab tam sim no txoj kev. Nyob rau hauv txoj kev voltage, peb siv ib tug voltage rau thawj winding thiab ntsuas qhov voltage induced nyob rau hauv lub thib ob winding. Tom qab ntawd peb xam cov lem piv los ntawm kev faib cov thawj voltage nrog rau lwm qhov voltage. Nyob rau hauv txoj kev tam sim no, peb siv ib tug tam sim no mus rau thawj winding thiab ntsuas qhov tam sim no nyob rau hauv lub thib ob winding. Tom qab ntawd peb faib cov thawj tam sim no los ntawm theem nrab tam sim no kom tau txais qhov sib piv.
Txhawm rau ua qhov kev sim, peb yuav tsum ua ntej kom ntseeg tau tias lub tshuab hloov pauv yog de-energized thiab muaj kev nyab xeeb ua haujlwm nrog. Peb kuj yuav tsum tau txiav txhua qhov kev thauj khoom lossis cov khoom siv txuas nrog lub tshuab hloov ua ntej qhov kev sim ua tiav. Peb yuav tsum tau xyuas cov transformer terminals 'cov cim kom paub meej tias thawj thiab theem nrab winding lub polarities.
Thaum peb tau lees paub qhov kev nyab xeeb ntawm kev hloov pauv, peb tuaj yeem ua tiav nrog qhov kev sim los ntawm kev txuas cov thawj thiab thib ob terminals rau cov khoom siv kuaj. Nyob ntawm txoj kev siv, peb tuaj yeem siv qhov hluav taws xob lossis tam sim no mus rau thawj winding thiab ntsuas qhov sib thooj voltage lossis tam sim no hauv qhov thib ob winding. Tom qab ntawd peb tuaj yeem suav cov lem piv raws li cov qauv sib txawv.
Hauv kev xaus, qhov kev ntsuas hloov pauv hloov pauv yog qhov kev sim yooj yim tab sis tseem ceeb uas ua kom muaj kev ua haujlwm zoo ntawm lub tshuab hloov pauv. Los ntawm kev ua raws li cov txheej txheem tsim nyog thiab kev ceev faj txog kev nyab xeeb, peb tuaj yeem ua qhov kev sim tau zoo thiab ua tau zoo. Peb yuav tsum nco ntsoov tias tsis tu ncua kev sim thiab kev saib xyuas ntawm cov transformers tuaj yeem pab tiv thaiv kev puas tsuaj thiab ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov tshuab hluav taws xob.