Lub transformer yog ib qho khoom siv uas siv lub hauv paus ntsiab lus ntawm electromagnetic induction los hloov alternating tam sim no (AC) voltage; Nws cov khoom tseem ceeb yog thawj kauj, theem nrab kauj, thiab cov tub ntxhais hlau (los yog cov tub ntxhais sib nqus). Nws lub luag haujlwm tseem ceeb suav nrog kev hloov pauv hluav taws xob, kev hloov pauv tam sim no, hloov pauv impedance, kev sib cais, thiab qhov hluav taws xob ruaj khov (hauv cov ntaub ntawv ntawm saturable -core transformers).
Cov khoom tseem ceeb ntawm transformer feem ntau suav nrog cov hauv qab no:
Cov tub ntxhais hlau yog tsim los ntawm cov ntawv sib dhos silicon steel thiab muab txoj hauv kev kaw rau cov hlau nplaum sib nqus. Tus tsim ntawm cov tub ntxhais ncaj qha cuam tshuam rau lub transformer efficiency thiab poob; lub siab - cov tub ntxhais zoo txo qis hysteresis thiab eddy tam sim no poob, yog li txhim kho lub zog hloov hluav taws xob.
Cov windings muaj thawj thiab theem nrab coils, feem ntau yog ua los ntawm tooj liab lossis txhuas hlau. Cov windings no tseem ceeb heev rau electromagnetic induction, ua kom muaj zog theem -nce lossis qib- nqis raws li qhov sib piv. Winding rwb thaiv tsev kuj yog ib qho tseem ceeb hauv kev ua kom lub transformer muaj kev nyab xeeb ua haujlwm.
Cov ntaub ntawv rwb thaiv tsev thiab cov khoom siv hauv tsev muaj xws li rwb thaiv tsev ntawm windings thiab nruab nrab ntawm cov windings thiab cov tub ntxhais, nrog rau cov qauv tsim uas txhawb nqa thiab ruaj ntseg windings. Cov Cheebtsam no ua kom muaj kev nyab xeeb thiab ruaj khov ua haujlwm nyob rau hauv siab -voltage ib puag ncig thaum ua kom yooj yim rau cov cua sov dissipation thiab ncua lub transformer lub neej kev pab cuam.