Fais fab Transformer Txoj Cai Ua Haujlwm
Lub zog hloov hluav taws xob yog ib qho tseem ceeb ntawm cov hluav taws xob hluav taws xob, lub luag haujlwm rau kev xa tawm thiab xa hluav taws xob zoo. Nws feem ntau yog siv nyob rau hauv high-voltage fais fab kis tau tus mob, los ntawm fais fab nroj tsuag mus rau substations, qhov twg nws nce lub voltage thiab txo tam sim no ua ntej nws yuav muab faib rau tsev neeg, lag luam, thiab lwm yam neeg siv.
Lub hauv paus ntsiab lus ua haujlwm ntawm lub zog hloov hluav taws xob yog ua raws li Faraday txoj cai ntawm electromagnetic induction. Nws muaj ib tug thawj winding, ib tug thib ob winding, thiab ib tug sib nqus core. Lub hauv paus winding yog txuas nrog lub siab voltage qhov chaw, thaum lub thib ob winding txuas nrog lub load. Cov tub ntxhais hlau nplaum yog ua los ntawm cov hlau los yog silicon steel laminations, uas tau muab tso ua ke los tsim ib txoj hauv kev kaw rau cov hlau nplaum sib nqus.
Thaum ib qho alternating tam sim no ntws los ntawm thawj winding, nws tsim ib tug magnetic teb nyob rau hauv lub tub ntxhais, uas induces ib tug voltage nyob rau hauv lub thib ob winding. Qhov voltage induced nyob rau hauv lub thib ob winding yog proportional rau tus naj npawb ntawm lem nyob rau hauv lub thib ob winding thiab tus nqi ntawm kev hloov ntawm cov hlau nplaum flux nyob rau hauv lub tub ntxhais. Qhov voltage yog nce los yog nqis los nyob ntawm qhov sib piv ntawm tus naj npawb ntawm lem nyob rau hauv thawj thiab theem nrab windings.
Lub transformer efficiency yog txiav txim los ntawm cov tub ntxhais losses, tooj liab losses, thiab stray losses. Core poob tshwm sim vim hysteresis thiab eddy tam sim no nyob rau hauv cov tub ntxhais, thaum tooj liab poob tshwm sim nyob rau hauv lub windings vim qhov tsis kam ntawm cov hlau. Kev poob qis yog tshwm sim los ntawm qhov xau ntawm cov hlau nplaum sib nqus los ntawm cov tub ntxhais, uas ua rau cua sov ntawm cov khoom nyob ze.
