Lub hauv paus ntsiab lus ntawm kev khiav hauj lwm tam sim no Transformer (CT) tso siab rau cov cai ntawm electromagnetic induction. Lub tswv yim tseem ceeb suav nrog qhov tseem ceeb - sab tam sim no tsim cov hlau nplaum sib nqus hauv cov tub ntxhais hlau, uas ua rau muaj qhov tam sim no nyob rau sab thib ob uas yog proportional rau thawj tam sim no. Cov txheej txheem no tuaj yeem nkag siab los ntawm ntau lub ntsiab lus tseem ceeb:
Generation of Magnetic Flux by Primary Current
Thawj sab ntawm lub transformer tam sim no feem ntau muaj xws li ib tug neeg xyuas pib los yog winding nrog ib tug me me ntawm lem; Raws li tam sim no ntws los ntawm nws, nws tsim ib qho kev sib nqus sib nqus hauv cov tub ntxhais hlau. Cov tub ntxhais hlau ua haujlwm raws li lub voj voog sib nqus, coj cov sib nqus flux mus rau qhov thib ob winding thiab ua kom muaj kev sib txuas zoo ntawm lub zog sib nqus.
Induction ntawm Secondary Current
Qhov thib ob winding feem ntau muaj ntau lub lem. Thaum cov hlau nplaum sib nqus nyob rau hauv cov tub ntxhais hlau hloov pauv, qhov hluav taws xob induced yog tsim nyob rau hauv qhov thib ob winding raws li Faraday txoj cai ntawm electromagnetic induction. Qhov thib ob -sab tam sim no ces ntws los ntawm ib qho kev sib txuas load- feem ntau yog ib qho ammeter, relay, los yog cov cuab yeej tiv thaiv- thiab nws qhov loj yog proportional rau cov thawj tam sim no, nrog rau qhov tshwj xeeb piv tau txiav txim siab los ntawm qhov hloov pauv hloov pauv.
Kev sib raug zoo ntawm Load thiab Magnetic Flux
Nyob rau hauv cov xwm txheej zoo tagnrho, qhov thib ob tam sim no muaj qhov txaus txaus los tiv thaiv cov hlau nplaum sib nqus hauv cov tub ntxhais hlau, yog li ua kom ntseeg tau tias qhov thib ob - sab tam sim no nruj me ntsis cuam tshuam cov thawj tam sim no raws li tus qauv tsim. Qhov no kuj yog vim li cas qhov thib ob winding yuav tsum tau txuas nrog lub kaw lus kaw; yog tias qhib qhib -circuited, nws yuav ua rau muaj kev phom sij loj heev, ua rau muaj kev phom sij rau cov cuab yeej siv thiab cov neeg ua haujlwm.
Nyob rau hauv qhov tseeb, tam sim no transformer siv lub magnetic teb generated los ntawm thawj - sab tam sim no nyob rau hauv lub hlau core "replicate" ib tug scaled -down version ntawm qhov tam sim no nyob rau hauv lub thib ob sab, yog li ib txhij ua tiav cov hauj lwm ntawm hluav taws xob cais, ntsuas, thiab kev tiv thaiv.
