Ob Qhov laj thawj cuam tshuam rau Transformer suab nrov

1, Cov yam ntxwv cuam tshuam tsis muaj suab nrov
Lub ntsiab yog vim li cas rau lub suab nrov tsim los ntawm cov tub ntxhais hlau yog qhov loj ntawm silicon steel ntawv yuav raug hloov me ntsis raws li qhov kev txiav txim ntawm qhov chaw sib nqus sib nqus. Vim tias lub sijhawm hloov pauv ntawm magnetostriction yog ib nrab ntawm qhov zaus ntawm cov khoom siv hluav taws xob, qhov kev vibration ntawm lub transformer lub cev los ntawm magnetostriction yog raws li ob zaug zaus ntawm lub hwj chim mov. Yog li ntawd, kev co ntawm silicon steel los xij yog feem ntau tshwm sim los ntawm cov yam ntxwv magnetostriction ntawm ferromagnetic cov ntaub ntawv.
Qhov loj ntawm magnetostriction yog txuam nrog cov khoom ntawm silicon steel los xij. Qhov magnetostriction ntau dua, lub suab nrov dua. Thaum lub zog magnetic teb zoo ib yam, cov ntaub ntawv zoo silicon steel kuj tseem muaj cov hlau nplaum tsawg dua, ua rau muaj suab nrov tsawg. Tus nqi magnetostriction kuj muaj feem xyuam rau lub zog magnetic teb, thiab lub zog ntawm magnetic teb, lub suab nrov dua.
Tus nqi magnetostriction kuj tseem cuam tshuam txog seb qhov saum npoo ntawm silicon steel daim ntawv yog pleev xim rau thiab annealed, vim hais tias cov txheej muaj adhesion rau silicon steel ntawv, uas tuaj yeem tiv thaiv deformation ntawm silicon steel ntawv. Lub magnetostriction ntawm annealed silicon steel los xij yog me dua li ntawm cov ntaub ntawv uas tsis muaj silicon steel nyob rau hauv tib lub zog sib nqus. Qhov no yog vim tias xaiv cov txheej txheem annealing tuaj yeem txo qhov magnetostriction.
Lub suab nrov tsis muaj load ntawm transformers tsis yog tsuas yog cuam tshuam nrog lawv cov khoom, tab sis kuj rau cov mob ntawm cov pob qij txha.
2, Lwm yam cuam tshuam rau tsis muaj suab nrov
(1) Kev cuam tshuam ntawm cov qauv hlau hlau. Lub suab nrov yog muaj feem xyuam rau txoj kab uas hla ntawm cov tub ntxhais kem thiab hlau yoke, qhov siab thiab dav ntawm lub qhov rais hlau qhov rais, thiab qhov zoo ntawm cov tub ntxhais hlau. Rau txhua 1t txo qis hauv cov tub ntxhais hlau zoo, lub suab nrov tuaj yeem txo los ntawm 1/3db (a) tus nqi. Rau txhua txhua 0.1 txo qhov piv ntawm qhov siab ntawm lub qhov rais hlau qhov rais mus rau txoj kab uas hla ntawm cov tub ntxhais hlau, lub suab nrov transformer yuav tsum tau txo los ntawm 2-3dB.
(2) Qhov zaus ntawm qhov tsis muaj suab nrov yog ua raws li ob zaug ntawm qhov zaus ntawm lub zog hluav taws xob raws li nws qhov tseem ceeb zaus. Ntxiv nrog rau qhov tseem ceeb sib nqus flux, kuj tseem muaj cov hlau nplaum sib nqus sib nqus hauv cov tub ntxhais hlau, yog li qhov zaus ntawm cov suab nrov tsis muaj suab nrov kuj muaj qhov sib nqus lossis siab dua cov nthwv dej. Thaum lub ntuj zaus ntawm cov hlau tub ntxhais roj tank ze rau lub suab nrov zaus, lub suab nrov resonance tshwm sim yuav tshwm sim, ua rau muaj suab nrov. Yog li ntawd, lub ntuj frequencies ntawm transformer hlau core thiab roj tank yuav tsum zam ib co high-frequency nthwv dej.
(3) Txhawm rau tiv thaiv cov tub ntxhais hlau resonance, lub ntuj zaus ntawm cov tub ntxhais hlau yuav tsum tau txiav txim siab thaum tsim cov tshuab hluav taws xob qis. Thaum qhov ntsuas zaus ntawm lub transformer yog 50Hz, lub ntuj zaus ntawm cov tub ntxhais hlau yuav tsum zam cov zaus hauv qab no: 75-125Hz, 165-235Hz, 275-325Hz, 375-425 Hz. Yog hais tias lub ntuj zaus zam lub resonance band, cov tub ntxhais hlau yuav tsis resonate.