Transformer yog cov khoom siv hluav taws xob siv rau kev hloov hluav taws xob. Nws yog ib qho khoom siv tseem ceeb thiab tseem ceeb hauv kab hluav taws xob. Nws tuaj yeem hloov AC lub zog ntawm ib qhov hluav taws xob thiab tam sim no rau hauv AC lub zog ntawm lwm qhov hluav taws xob thiab tam sim no ntawm tib zaus. Nws tuaj yeem yuav luag txhua qhov chaw hauv ntiaj teb. Transformers yog siv nyob rau hauv tag nrho cov khoom siv hluav taws xob. Nws txoj ntsiab cai yog yooj yim, tab sis cov txheej txheem winding ntawm transformer yuav muaj cov kev cai sib txawv raws li kev siv sib txawv (siv txawv). Lub luag haujlwm tseem ceeb ntawm transformer muaj xws li: kev hloov pauv voltage; hloov impedance; Kev sib cais, kev ruaj ntseg hluav taws xob (magnetic saturation transformer), thiab lwm yam. Cov qauv siv feem ntau ntawm cov tshuab hloov pauv feem ntau suav nrog E-hom thiab C-hom cores. Hauv ntau qhov chaw, transformers muaj kev siv sib txawv, xws li:
1. Kev txhawb nqa qhov hluav taws xob thaum lub sij hawm sib kis mus ntev tuaj yeem txo lub zog poob ntawm txoj kab.
2. Txo qhov hluav taws xob thaum mus txog qhov chaw siv tuaj yeem ua tau raws li qhov xav tau ntawm cov neeg siv khoom sib txawv.
3. Thaum ua haujlwm impedance txuam, siv kev sib txuas ntawm transformer tuaj yeem hloov qhov impedance.
4. Siv lub tshuab hluav taws xob sib cais kom cov hluav taws xob cais ob theem kom tsis txhob muaj hluav taws xob sib tsoo.
Kev faib tawm ntawm cov khoom siv feem ntau siv tau tuaj yeem ua tiav raws li hauv qab no:
1. Faib raws li theem tus lej:
1) Ib-theem transformer: siv rau ib-theem loads thiab peb-theem transformer pawg.
2) Peb-theem transformer: siv los nce thiab txo qhov voltage hauv peb-theem system.
2. Raws li kev ua kom txias:
1) Lub tshuab ziab khaub ncaws qhuav: Kev cia siab rau huab cua convection rau ntuj txias lossis ntxiv cov kiv cua txias, feem ntau yog siv rau cov khoom siv hluav taws xob me me xws li cov tsev siab siab, cov chaw nres tsheb ceev, cov teeb pom kev zoo hauv zos, thiab hluav taws xob circuits.
2) Roj-immersed transformer: cia siab rau cov roj raws li qhov nruab nrab cua txias, xws li roj-immersed nws tus kheej-txias, roj-immersed cua txias, roj-immersed dej txias, yuam roj ncig, thiab lwm yam.