Yuav ua li cas xam qhov luv-circuit impedance ntawm lub transformer thaum lub sij hawm luv luv-circuit test
Lub luv luv-circuit impedance ntawm transformer, tseem hu ua impedance voltage, yog ib qho tseem ceeb parameter ntawm ib tug transformer, nws qhia txog lub impedance voltage poob ntawm lub transformer nws tus kheej thaum lub rated load yog khiav. Txoj kev suav tshwj xeeb yog raws li hauv qab no: Cov kauj ruam xeem: Ua ntej, luv luv-circuit thib ob sab winding ntawm lub transformer. Tom qab ntawd, AC voltage ntawm qhov ntsuas zaus yog siv rau thawj sab winding. Maj mam nce qhov voltage kom txog thaum lub hauv paus tam sim no ncav cuag tus nqi ntsuas. Ntawm no, sau cov voltage Uz thov rau ntawm thawj sab winding.
Cov mis laij lej: Thaum kawg, raws li qhov ntsuas hluav taws xob Uz thiab qhov ntsuas voltage Un ntawm lub transformer, qhov kev faib ua feem ntawm luv-circuit impedance yuav xam tau.Cov mis yog Uz%=Uz/Un × 100%. Qhov feem pua ntawm no yog qhov luv-circuit impedance ntawm lub transformer.
Tsis tas li ntawd, qhov kev ntsuas luv-circuit impedance tsis tuaj yeem kuaj xyuas qhov xwm txheej ntawm lub tshuab hloov pauv tom qab qhov cuam tshuam ntawm qhov luv-circuit tam sim no hauv kev ua haujlwm, tab sis kuj tseem ntsuas seb cov qauv sab hauv ntawm lub transformer puas zoo, xws li seb lub winding yog deformed los yog. hloov chaw.
Nyob rau hauv dav dav, los ntawm lub short-circuit impedance xeem thiab xam, koj muaj peev xwm muaj kev nkag siab zoo ntawm kev ua tau zoo ntawm lub transformer, los xyuas kom meej nws ruaj khov nyob rau hauv lub hwj chim system.