Transformer roj yuav ua rau polarization poob thiab conductivity poob nyob rau hauv qhov kev txiav txim ntawm alternating hluav taws xob teb. Cov no suav nrog hu ua dielectric poob. Lub dielectric poob qhov tseem ceeb qhia txog qhov zoo ntawm cov hluav taws xob rwb thaiv tsev cov yam ntxwv thiab kev laus ntawm cov roj transformer nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb, oxidation thiab kub kub.
Cov roj dielectric ntau dhau ntawm cov roj transformer yuav cuam tshuam rau kev ua haujlwm ntawm lub tshuab hloov pauv. Tam sim no, muaj ob txoj hauv kev tseem ceeb los daws qhov teeb meem ntawm cov roj dielectric ntau dhau ntawm transformer roj. Ib qho yog los hloov cov roj uas tsis tsim nyog thiab rov-kho cov roj uas tau dhau qhov kev sim hluav taws xob thiab tshuaj ntsuam xyuas tshuaj. Nws yog los tsim cov roj ntau dhau.
1. Replace the unqualified oil, and re-inject the oil that has passed the electrical test and chemical analysis. Replacing unqualified oil can shorten the power outage time of the system. It is only necessary to drain the old oil in the transformer, flush the transformer with qualified oil, and then perform vacuum oiling on the transformer. This treatment is more suitable for the unit that does not allow long-term power failure; the unit has been running for a long time, the oleic acid value is high, the oil is dark yellow or brown, and free water or oil is turbid and fully degraded. However, simple oil change is not as thorough as filtering oil to "flush" the transformer, and the oil change consumes a lot, which is not conducive to energy saving and environmental protection. It is not suitable to change the oil that exceeds the standard.
2. Rov tsim cov roj ntau dhau. Regeneration yog hais txog lub cev - tshuaj los yog chemical txoj kev los tshem tawm cov teeb meem nyob rau hauv cov roj thiab restore los yog txhim kho lub cev thiab tshuaj ntsuas cov roj. Cov txheej txheem ntawm kev tsim dua tshiab yog: txoj kev adsorbent thiab sulfuric acid -cov av nplaum dawb. Txoj kev adsorbent yog tsim rau kev kho cov roj nrog lub teeb pom kev ntawm deterioration; cov sulfuric acid- av nplaum txoj kev yog haum rau kev kho cov roj nrog ib tug hnyav degree ntawm deterioration. Txoj kev adsorbent tuaj yeem muab faib ntxiv rau hauv txoj kev sib cuag thiab txoj kev percolation. Txoj kev sib cuag siv cov hmoov adsorbent thiab roj kom rov tsim dua nyob rau hauv ib hom kev sib cuag; thaum txoj kev percolation yog yuam cov roj kom dhau los ntawm lub purifier nruab nrog granular adsorbents. Diafiltration regeneration kho. Rau cov roj hloov pauv tsis zoo, cov sulfuric acid- cov av nplaum dawb tuaj yeem siv rau kev tsim dua tshiab. Sulfuric acid kev kho mob tuaj yeem tshem tawm ntau yam khoom laus hauv cov roj, thiab kev kho av nplaum tuaj yeem tshem tawm cov khoom tsis zoo uas tseem tshuav hauv cov roj tom qab kho cov kua qaub. Hauv kev tsim khoom thiab kev ua haujlwm tiag tiag, nws feem ntau pom tias tom qab cov roj tau nqus, lim thiab lim dej, cov ntsiab lus ntawm cov roj yog me me, thiab qhov nruab nrab poob ntawm cov roj yog siab. Qhov no yog vim qhov nruab nrab poob qhov tseem ceeb ntawm cov roj tsis yog tsuas yog cuam tshuam nrog cov ntsiab lus ntawm cov roj Cov nqi dej kuj muaj feem xyuam rau ntau yam. Yog vim li cas rau qhov nce ntawm dielectric poob qhov tseem ceeb ntawm cov roj transformer feem ntau yog qhov nce ntawm cov polar soluble hauv cov roj. Rau cov khoom uas nws txoj kab uas hla ntawm 10-gm thiab 10-Tm, lawv tuaj yeem dhau los ntawm cov ntawv lim. Yog li ntawd, nws yog tsis yooj yim sua kom ua qhov nruab nrab poob qhov tseem ceeb ntawm cov sol hais los ntawm lub tshuab nqus tsev roj lim thib ob. Yog li ntawd, cov roj nruab nrab poob los ntawm qhov laj thawj no tsis tuaj yeem kho. Qhov ntau ntxiv yog feem ntau regenerated los ntawm percolation.