400 kVA Roj-Filled Transformer: Kev Tshawb Fawb Kev Tshawb Fawb thiab Kev Tshawb Fawb Roj Zoo
Jan 28, 2026
Tso lus
Vim li cas Kev Tshawb Fawb Txhua Hnub Tseem Ceeb rau 400 kVA Roj -Filled Transformer
Lub 400 kVA roj- puv transformer ua haujlwm rau cov chaw tsim khoom lag luam, chaw lag luam thiab cov chaw hauv nroog, qhov chaw uas tsis tau npaj tseg yog kim. Cov roj transformer ua ob txoj haujlwm ib zaug: nws insulates lub windings thiab nws nqa cua sov mus rau qhov chaw txias. Yog tias cov roj degrades, ob qho tib si ua haujlwm tsis muaj zog, yog li qhov xwm txheej ntawm cov roj yog qhov qhia ncaj qha ntawm kev noj qab haus huv ntawm chav tsev. Routine inspection and periodic oil testing detect the early stages of insulation ageing, oil contamination and cooling inefficiency before they develop into faults.
Lub Hom Phiaj ntawm Kev Tshawb Fawb
Saib xyuas cov roj qib thiab cov xim roj hloov, uas qhia txog kev xau lossis degradation.
Txheeb xyuas qhov txawv txav qhov kub nce siab uas taw qhia rau overload lossis txias tsis ua haujlwm.
Tshawb xyuas cov roj to thiab sealing teeb meem nyob rau theem pib.
Txheeb xyuas qhov ua haujlwm ntawm cov ntsuas ntsuas, relays thiab cov cuab yeej tiv thaiv.
Ua kom muaj kev nyab xeeb thiab txuas ntxiv fais fab rau cov khoom sib txuas.
Daim ntawv tshuaj ntsuam xyuas txhua hnub thiab lub sijhawm
Txhua Hnub / Lub Limtiam Tshawb Xyuas
Roj qib ntsuas qhov xwm txheej tiv thaiv qhov kub thiab txias - kho qib cim.
Kev ntsuas kub ntsuas ntsuas piv nrog cov kev ua haujlwm ib txwm muaj.
Cov suab nrov txawv txav, kev vibration lossis tsw ntawm lub tank thiab bushings.
Bushing deg cleanness thiab mob, tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj kuab paug.
Lub Hlis / Lub Peb Hlis Checks
Tank welds, gasket pob qij txha thiab valve seals rau roj seepage.
Radiator thiab cua txias kom huv si; thaiv fins nce roj kub.
Cov tsos mob ua pa thiab silica gel xim ntawm tus neeg saib xyuas- hom units.
Earthing system txuas ntxiv thiab kev sib txuas nruj.
Cov Kev Ntsuas Roj Zoo
Kev ntsuas roj ntsuas qhov xwm txheej ntawm lub rwb thaiv tsev yam tsis tau qhib lub tank. Cov khoom kuaj tseem ceeb rau 400 kVA chav tsev yog:
| Kuaj | Qhov nws qhia | Hom qauv |
|---|---|---|
| Kev ntsuas hluav taws xob (BDV) | Dielectric zog; noo noo thiab hais kom qis nws | Ua raws li IEC 60156 |
| Cov ntsiab lus dej | Moisture ingress; accelerates ntawv aging | IEC 60814 (TSI) |
| Acid naj npawb | Roj oxidation qib; high acidity tawm tsam daim ntawv | Ua raws li IEC 62021 |
| Dielectric poob yam tseem ceeb (tan delta) | Roj paug thiab kev laus | IEC 60247 (TSI) |
| Dissolved gas tsom xam (DGA) | Thaum ntxov sab hauv faults: overheating, ib nrab tso tawm, arcing | Daim ntawv no: IEC 60567 / IEC 60599 |
Raws li ib txwm muaj, kev sim roj txhua ib mus rau ob xyoos yog txaus; Lub sijhawm yuav tsum luv luv rau ib xyoos lossis tsawg dua hauv qhov siab -load, kub lossis muaj kuab paug ib puag ncig, thiab DGA raug pom zoo thaum twg xav tias muaj qhov ua txhaum.
Kev Saib Xyuas Kev Ua Haujlwm Raws li cov txiaj ntsig ntawm Kev Ntsuas Roj
Roj tsis pub dhau qhov txwv: txuas ntxiv kev saib xyuas thiab khaws cov ntaub ntawv.
Cov ntsiab lus dej tau nce ntxiv: ua cov roj pom los yog lub tshuab nqus dej.
Tsawg tawg voltage nrog ib txwm acidity: lim los yog rov tsim cov roj.
High acidity: tshuaj xyuas cov rwb thaiv tsev sab hauv thiab winding mob; daim ntawv tej zaum twb laus lawm.
Kev kos npe DGA tsis zoo: tshawb xyuas hom kev ua txhaum ua ntej ua haujlwm ntxiv.
Kev kho roj raws sij hawm rov ua kom txias thiab rwb thaiv tsev ua haujlwm thiab tiv thaiv qhov teeb meem me me los ntawm kev ua tsis tiav.
Yam Tsis Muaj Peev Xwm ntawm 400 kVA Roj-Filled Transformer
| Parameter | Hom specification |
|---|---|
| Rated peev | 400 kVA ua |
| Txoj kev txias | ONAN |
| Phase | Peb theem |
| Thawj qhov voltage | 6kV - 35kV (ib daim phiaj) |
| Secondary voltage | 0,4kv ua |
| Ntau zaus | 50Hz / 60Hz |
| Rwb thaiv tsev chav kawm | Class A (daim ntawv -roj) |
| Kev teeb tsa | Sab hauv lossis sab nraum zoov |
| Tus qauv tsim | IEC 60076 Kev Ua Haujlwm |
Cov lus nug nquag
Q1. Yuav tsum tau kuaj cov roj ntawm 400 kVA transformer ntau npaum li cas?Txhua ib mus rau ob xyoos nyob rau hauv tej yam kev mob. Kev ntsuam xyuas txhua xyoo raug pom zoo rau siab -load, kub lossis muaj kuab paug ib puag ncig, thiab DGA yuav tsum tau ntxiv thaum twg xav tias ua txhaum.
Q2. Dab tsi yog qhov zoo ntawm qhov hluav taws xob tawg rau cov roj transformer?Rau cov roj hauv kev pabcuam, BDV feem ntau yuav tsum siab dua 30 kV / 2.5 mm, nrog ntau cov khoom siv hluav taws xob xav tau siab tshaj 40 kV / 2.5 mm. Cov nqi qis dua 30 kV qhia tias cov roj xav tau kev pom lossis hloov pauv, raws li IEC 60156 kev sim ntsuas.
Q3. Cov dej hauv cov roj puas tuaj yeem raug tshem tawm yam tsis hloov cov roj?Yog, feem ntau. Lub tshuab nqus tsev roj pom thiab lub cev qhuav dej tshem tawm cov dej noo thiab cov khoom thaum lub tshuab hloov pauv tsis ua haujlwm lossis los ntawm kev sib txuas hauv online, kho cov khoom siv roj.
Q4. Vim li cas silica gel hauv lub tshuab nqus pa hloov xim?Silica gel absorbs noo noo los ntawm huab cua nkag mus rau hauv lub conservator-hom tank raws li cov roj ua pa. Nws hloov xim thaum saturated, taw qhia tias nws yuav tsum tau qhuav los yog hloov kom noo noo tsis nkag mus rau hauv lub transformer.
Q5. Puas yog kev txheeb xyuas cov roj yaj puas tsim nyog rau lub tshuab hluav taws xob me me?DGA yog qhov kev ceeb toom ntxov tshaj plaws rau kev ua txhaum sab hauv xws li overheating, ib nrab tawm thiab arcing. Rau qhov tseem ceeb 400 kVA units, ib qho qauv DGA txhua xyoo yog kev pov hwm pheej yig piv nrog tus nqi ntawm qhov tsis ua haujlwm winding.
Q6. Yuav ua li cas yog tias cov roj qib qis?Ua ntej nrhiav qhov ua rau: lub gasket xau, valve lossis radiator txuas. Kho cov xau, tom qab ntawd sau nrog cov roj ntawm tib hom thiab qib, thiab xyuas kom meej tias qib yog qhov tseeb ntawm qhov kub thiab txias. Tsis txhob khiav nrog cov roj qis, uas nthuav tawm cov cua ntsawj ntshab thiab nce qhov kub ntawm qhov kub.