Dab tsi yog cov teeb meem ntawm cov roj immersed transformer cores?
Cov tub ntxhais hlau ntawm cov roj-immersed transformer mas plays lub luag hauj lwm ntawm magnetic conductivity. Magnetoelectric hloov dua siab tshiab tuaj yeem tshwm sim tom qab permeance. Cov tub ntxhais hlau ntawm cov roj-immersed transformer plays lub luag haujlwm ntawm kev coj cov hlau nplaum thiab cov pob txha. Vim qhov hloov pauv ntawm electromagnetic teb ntawm cov hlau nplaum permeable ntawm cov roj-immersed transformer, qhov sib nqus susceptibility thiab sib nqus induction ntawm cov tub ntxhais hlau kuj hloov. Yog tias muaj cov tub ntxhais hlau, nws tuaj yeem ua tiav kev sib koom ua ke ntawm kev sib txuas ntawm ib zaug.
Thaum cov roj-immersed transformer yog nyob rau hauv ib txwm ua haujlwm, vim yog lub cev ua haujlwm ntawm cov roj-immersed transformer, muaj AC magnetic teb nyob ib ncig ntawm lub winding hlau, uas tsis tuaj yeem grounded ntawm ntau lub ntsiab lus. Kev cuam tshuam los ntawm electromagnetic induction, muaj peev xwm parasitic ntawm high-voltage coiled hlau thiab low-voltage coiled hlau, low-voltage coiled wire thiab hlau core, thiab cov tub ntxhais hlau thiab lub plhaub. Vim muaj kev sib xyaw ua ke ntawm cov kab mob parasitic capacitance, tus nqi coil khub ua rau muaj peev xwm ntab. Txij li qhov kev ncua deb ntawm cov tub ntxhais hlau thiab lwm yam hlau tsis sib npaug ntawm cov hlau coiled, muaj qhov sib txawv ntawm cov khoom. Lub txim hluav taws xob tshwm sim thaum qhov sib txawv ntawm ob lub ntsiab lus mus txog qhov chaw uas tuaj yeem rhuav tshem cov rwb thaiv tsev ntawm lawv. Kev tso tawm yog cuam tshuam. Nyob rau hauv lub sij hawm ntev, cov roj thiab cov khoom rwb thaiv tsev ntawm cov roj-immersed transformers raug cuam tshuam. Txhawm rau tshem tawm qhov tshwm sim no, cov tub ntxhais hlau txuas nrog cov pib tshiab, uas yog sib npaug ntawm cov peev txheej ntawm cov pib tshiab. Txawm li cas los xij, thaum ib qho tseem ceeb lossis lwm yam hlau yog hauv av ntawm ob lossis ntau lub ntsiab lus, qhov chaw hauv av tsim ib lub voj voog kaw, ua rau kev ncig thiab cov kua dej. Hauv zos overheating coj cov roj tawg thiab txo qis hauv cov khoom insulating. Hauv qhov xwm txheej hnyav, silicon steel phaj ntawm cov tub ntxhais hlau yog tawg, uas feem ntau ua rau muaj xwm txheej loj. Qhov tseem ceeb tshaj plaws yog hloov qhov chaw hauv av ntawm cov tub ntxhais hlau.
Lub hauv paus tseem ceeb ntawm cov roj-immersed transformer cores yog luv luv los ntawm cov txheej txheem kev tsim kho thiab kev tsim tsis zoo ntawm cov phiaj xwm hauv av, ntau cov ntsiab lus hauv av ntawm cov khoom siv thiab cov laj thawj sab nraud, burrs los ntawm cov khoom txawv teb chaws hlau, thiab cov tub ntxhais tsis zoo engineering hauv transformer. Muaj xeb, vuam slag, thiab lwm yam.
