Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm peb-theem kem transformer yog raws li lub hauv paus ntsiab lus ntawm electromagnetic induction. Thaum AC voltage yog siv rau qhov thib ob winding, AC tam sim no ntws mus rau hauv winding, generating excitation thiab alternating magnetic flux nyob rau hauv cov tub ntxhais hlau. Qhov kev sib nqus sib nqus sib nqus no tsis yog tsuas yog dhau los ntawm kev sib nqus winding, tab sis kuj los ntawm cov thawj winding, ua rau induced electromotive quab yuam nyob rau hauv ob qho tib si windings. Yog hais tias qhov thib ob winding txuas nrog lub load ntawm sab nraud Circuit Court, AC tam sim no yuav ntws tawm thiab tso zis hluav taws xob. Peb-theem transformer tuaj yeem pom tau tias yog kev sib xyaw ntawm peb-theem ib-theem transformers ntawm tib lub peev xwm, nrog rau txhua tus tub ntxhais kab mob nyob ib ncig ntawm ob lub coils ntawm tib theem - high voltage coil thiab low voltage coil, thiab outputting peb-theem. zog. Txuas lub siab voltage winding ntawm lub transformer nyob rau hauv ib tug Y kev twb kev txuas (the theem voltage yuav sib npaug zos rau 57.7% ntawm cov kab voltage), thiab txiav txim qhov kev twb kev txuas ntawm nruab nrab voltage winding thiab lub low voltage winding raws li kev sib raug zoo ntawm lub voltage phasor ntawm qhov nruab nrab voltage kis tau tus mob thiab qhov voltage phasor ntawm lub low voltage kis system.
Tus tsim ntawm peb-theem transformers kuj yuav siv sij hawm mus rau hauv tus account lub symmetry ntawm peb-theem lub ntsiab sib nqus flux. Thaum lub symmetrical peb-theem voltage yog siv rau cov thawj winding, peb-theem lub ntsiab sib nqus flux tseem symmetrical, thiab cov hlau nplaum flux dhau los ntawm nruab nrab hom hlau core kem yog cov lej ntawm cov theem ntau ntawm peb-theem lub ntsiab sib nqus. flux. Qhov kev tsim no ua kom ntseeg tau tias qhov nruab nrab tam sim no ntawm Y-shaped kev sib txuas Circuit Court yog xoom thaum lub load yog symmetrical, yog li ua kom muaj kev ruaj ntseg ntawm lub transformer.
