Lub tshuab hluav taws xob faib hluav taws xob yog cov khoom siv hluav taws xob zoo li qub uas siv rau hauv lub tshuab hluav taws xob faib hluav taws xob los hloov AC voltage thiab tam sim no kom xa AC hluav taws xob hluav taws xob raws li txoj cai ntawm electromagnetic induction. Hauv Suav teb, cov khoom siv hluav taws xob feem ntau tau faib los ntawm qib voltage rau hauv ultra- high voltage (750kV thiab siab dua), ntxiv -high voltage (500kV) transformers, 220-110kV transformers, thiab 35kV thiab hauv qab transformers. Fais fab transformers feem ntau xa mus rau lub hwj chim transformers ua hauj lwm nyob rau hauv lub hwj chim faib tes hauj lwm nrog voltage theem ntawm 10-35kV thiab muaj peev xwm ntawm 6300kVA thiab hauv qab no, ncaj qha muab hwj chim rau cov neeg siv kawg.
Kev faib hluav taws xob hloov hluav taws xob yog cov khoom siv hluav taws xob zoo li qub siv los hloov AC voltage (tam sim no) ntawm ib qho nqi rau ib lossis ntau qhov voltages (tam sim no) ntawm cov nqi sib txawv tab sis nrog tib zaus. Thaum AC tam sim no siv rau lub hauv paus winding, alternating magnetic flux yog generated. Qhov kev sib nqus sib nqus sib nqus, los ntawm kev sib nqus ntawm cov tub ntxhais hlau, ua rau AC electromotive quab yuam (EMF) nyob rau hauv qhov thib ob winding. Qhov loj ntawm qhov induced EMF nyob rau hauv lub thib ob winding muaj feem xyuam rau tus naj npawb ntawm lem nyob rau hauv ob qho tib si thawj thiab theem nrab windings; uas yog, qhov voltage yog ncaj qha proportional rau tus naj npawb ntawm lem. Lub luag haujlwm tseem ceeb yog xa hluav taws xob hluav taws xob, yog li lub peev xwm ntsuas yog nws qhov tseem ceeb. Rated peev xwm yog ib qho piv txwv tus nqi uas sawv cev rau lub hwj chim. Nws yog tus cwj pwm ntawm tus nqi hluav taws xob xa mus, qhia hauv kVA lossis MVA. Thaum qhov ntsuas hluav taws xob raug siv rau lub tshuab hloov pauv, qhov ntsuas tam sim no uas tsis tshaj qhov ntsuas kub nce siab raws li cov xwm txheej tau teev tseg yog txiav txim siab raws li nws. Lub zog ntau dua -hloov fais fab transformer yog amorphous alloy core tis transformer. Nws qhov txiaj ntsig loj tshaj plaws yog qhov tsis muaj -load poob tus nqi qis heev. Txawm hais tias tsis muaj -load poob tus nqi tuaj yeem lav tau yog qhov teeb meem tseem ceeb uas yuav tsum tau txiav txim siab hauv tag nrho cov txheej txheem tsim [2]. Thaum npaj cov khoom tsim, ntxiv rau kev txiav txim siab tias amorphous alloy core nws tus kheej tsis raug rau sab nraud quab yuam, cov yam ntxwv tsis zoo ntawm amorphous alloy yuav tsum raug xaiv kom raug thiab tsim nyog thaum muab xam. Cov tuam txhab tsim hluav taws xob hauv tsev loj xws li TBEA, Shandong Mingda, thiab TBEA Luming Transformer.