Yuav ua li cas qhuav hom faib transformer suab nrov los ntawm?
Lub tshuab ziab khaub ncaws qhuav yuav kuj tsim suab nrov hauv cov txheej txheem ua haujlwm. Lub suab nrov tsim los ntawm cov tshuab ziab khaub ncaws qhuav ua rau qhov kev ua tau zoo thiab kev ua haujlwm ntawm cov tshuab ziab khaub ncaws qhuav txuas ntxiv mus. Lub suab nrov ntawm cov tshuab hloov pauv qhuav yuav tsum tau daws nyob rau lub sijhawm, yog li cas lub suab ntawm cov tshuab hloov pauv qhuav tuaj ntawm?
1. Suab nrov tshwm sim los ntawm magnetostriction ntawm silicon steel ntawv
Thaum cov tub ntxhais zoo siab, qhov loj ntawm silicon steel daim ntawv hloov pauv raws li cov kev taw qhia ntawm lub magnetic teb, thaum lub loj perpendicular mus rau cov kev taw qhia ntawm lub magnetic teb hloov nyob rau hauv lub opposite direction. Magnetostriction ua rau qhuav hom faib transformer core kom vibrate ib ntus raws li qhov excitation zaus hloov. Txij li thaum lub sij hawm hloov ntawm magnetostriction yog ib nrab ntawm lub hwj chim lub sij hawm, cov tub ntxhais suab nrov vim magnetostriction yog raws li ob zaug lub hwj chim zaus. Vim lub non-linearity ntawm magnetostriction ntawm cov tub ntxhais hlau thiab qhov sib txawv qhov ntev ntawm cov hlau nplaum flux txoj hauv kev nyob rau hauv lub puab thav duab ntawm cov tub ntxhais hlau, ntxiv rau qhov tseem ceeb zaus, lub suab nrov ntawm cov tub ntxhais hlau kuj suav nrog cov suab nrov hauv kev txiav txim siab. harmonic spectrum.
2. Hlau tub ntxhais suab nrov tshwm sim los ntawm electromagnetic nkaus
Muaj electromagnetic attraction ntawm silicon steel daim ntawv pob qij txha thiab cov laminations vim magnetic flux to, uas ua rau cov tub ntxhais vibrate. Vim qhov kev txhim kho txuas ntxiv ntawm cov txheej txheem txheej txheej txheej, cov tub ntxhais kev co tshwm sim los ntawm electromagnetic attraction ntawm seams thiab laminations yog ntau me dua li cov tub ntxhais kev co tshwm sim los ntawm magnetostriction, yog li no feem ntawm lub suab nrov feem ntau yuav tsis quav ntsej.
3. Winding vibration suab nrov tshwm sim los ntawm kev sib nqus to
Lub xau flux tsim los ntawm winding load tam sim no yuav ua rau lub winding vibrate. Thaum cov ntsuas ua hauj lwm sib nqus flux ceev ntawm cov qhuav hom faib transformer nyob rau hauv thaj tsam ntawm 1.5 ~ 1.8T. Qhov kev vibration no me me piv rau cov tub ntxhais kev co tshwm sim los ntawm magnetostriction. Txawm li cas los xij, lub suab nrov tsim los ntawm kev sib nqus nqus ntawm cov khoom thauj tam sim no yog proportional rau lub square ntawm lub load tam sim no, yog li thaum lub ntsuas magnetic flux ceev ntawm lub transformer yog txo kom qis dua 1.4T; qhov kev vibration ntawm winding yuav txuas nrog kev co ntawm cov tub ntxhais hlau uas tshwm sim los ntawm magnetostriction ntawm silicon steel ntawv.
