Cov khoom tseem ceeb ntawm cov roj -immersed transformers
1.Core (ntawm transformer lossis electromagnet)
Cov tub ntxhais yog qhov tseem ceeb tshaj plaws ntawm cov hluav taws xob sib npaug hauv cov roj -immersed transformers. Nws feem ntau yog tsim los ntawm kub- dov los yog txias- dov hlau los yog hlau oxide hlau nplaum nrog cov ntsiab lus silicon ntawm li 5% thiab thickness ntawm 0.35 los yog 0.5 hli, coated nrog anti- xeb xim rau ntawm qhov chaw. Cov cores no tau sib sau ua ke los ntawm kev sib tw silicon- muaj cov ntawv hlau lossis hlau oxide hlau nplaum. Cov tub ntxhais kawm tau muab faib ua ob ntu: cov tub ntxhais kem thiab tus quab. Lub hauv paus tseem ceeb yog nruab nrog windings, thiab tus quab ua haujlwm kaw qhov sib npaug sib npaug. Cov ntaub ntawv tseem ceeb ntawm cov qauv tseem ceeb yog lub plawv hom lossis hom plhaub.
2. Cua
Lub winding yog ib feem ntawm lub voj voog ntawm cov roj -immersed transformer. Nws yog feem ntau yog ua los ntawm winding insulated txheej ca tooj liab hlau los yog round tooj liab tub ntxhais hlau ntawm ib tug winding pwm. Lub tes tsho winding yog muab tso rau ntawm cov hlau tseem ceeb ntawm cov roj -immersed transformer. Qhov qis-voltage winding yog nyob rau hauv txheej sab hauv, thiab siab -voltage winding yog muab tso rau saum npoo ntawm qhov qis -voltage winding. Nruab nrab ntawm qhov qis-voltage winding thiab cov tub ntxhais hlau, thiab nruab nrab ntawm qhov siab -voltage winding thiab qis-voltage winding, threaded caps ua los ntawm cov ntaub ntawv insulating txheej yog siv los cais lawv, uas yog qhov zoo rau cov txheej rwb thaiv tsev.
3. Transformer roj
Cov muaj pes tsawg leeg ntawm transformer roj nyob rau hauv cov roj -immersed transformers yog heev complex. Nws feem ntau yog tsim los ntawm cycloalkanes, ethane thiab aliphatic hydrocarbons. Hauv cov roj-immersed transformers siv nyob rau hauv cov khoom siv hluav taws xob, cov roj hauv transformer plays ob lub luag haujlwm tseem ceeb: Ua ntej, nws ua raws li cov txheej txheem insulating ntawm cov windings thiab cov tub ntxhais, nrog rau nruab nrab ntawm cov windings thiab cov tub ntxhais hlau, thiab hauv cov roj tank. Qhov thib ob, thaum cov roj yog rhuab, nws ua rau thermal convection, uas yuav pab ua kom sov rau cov tub ntxhais hlau thiab windings ntawm lub transformer. Hom roj ntau-cov roj hloov pauv muaj xws li 10 #, 25 # lossis 45 # qhov ntau thiab tsawg. Tus qauv qhia qhov kub ntawm qhov uas cov roj pib ua kom khov thaum nws nyob ntawm xoom degrees Celsius. Piv txwv li, "25 #" roj qhia tias hom roj no pib ua kom khov ntawm -25℃. Cov roj specification yuav tsum raug xaiv raws li cov xwm txheej hauv zos.
4. Roj Tank
Cov roj reservoir yog ntsia rau ntawm lub hood ntawm lub cav roj tank. Lub ntim ntawm cov roj reservoir yog kwv yees li 10% ntawm qhov hnyav ntawm lub cav roj tank. Muaj kev sib txuas ntawm cov kav dej ntawm cov roj reservoir thiab lub cav roj tank. Thaum lub ntim ntawm cov roj-immersed transformer hloov nrog qhov kub thiab txias ntawm cov kua thiab nthuav los yog sib cog lus, cov roj reservoir ua hauj lwm raws li ib tug roj cia tank thiab rau refilling roj, xyuas kom meej tias cov tub ntxhais thiab windings yog immersed nyob rau hauv cov roj; thiab vim lub installation ntawm cov roj reservoir, qhov chaw sib cuag ntawm cov roj thiab cov huab cua yog txo, yog li txo cov roj deterioration ntawm cov roj.
Nyob rau sab ntawm cov roj reservoir, muaj ib tug ntsuas roj theem. Nyob ze ntawm lub iav raj, muaj cov txheeb ze qhov siab siv kab ntawm cov roj theem ntawm -30℃, +20℃thiab +40℃, qhia qhov txheeb ze ntawm cov roj qib uas cov roj tsis siv -immersed transformer yuav tsum ncav cuag; cov kab siv tau tuaj yeem cuam tshuam zoo seb puas muaj cov roj txaus txaus thaum lub sijhawm ua haujlwm ntawm cov roj-immersed transformer nyob rau hauv ntau yam mob.
Qhov ua pa yog siv rau ntawm cov roj reservoir kom tso cai rau sab hauv tsev ntawm cov roj reservoir sib txuas lus nrog cov cua. Thaum cov roj hauv cov roj-immersed transformer nthuav dav thiab sib cog lus vim cua sov, cov pa roj nyob rau sab sauv ntawm cov roj reservoir tuaj yeem nkag mus thiab tawm los ntawm qhov ua pa, ua rau cov roj qib nce lossis poob, yog li tiv thaiv cov roj tank los ntawm deforming lossis puas.
5. Rwb thaiv tsev raj
Qhov no yog ib qho tseem ceeb insulating txheej khoom ntawm cov roj-immersed transformer box. Feem ntau ntawm cov roj-immersed transformers siv porcelain insulating raj rau rwb thaiv tsev. Los ntawm qhov siab thiab tsis tshua muaj hluav taws xob insulating raj, qhov siab thiab qis voltage windings ntawm cov roj-immersed transformer yog txuas los ntawm cov roj tank mus rau sab nraud ntawm cov roj tank, muab rwb thaiv tsev rau winding - rau - av voltage (plhaub thiab core) ntawm cov roj -immersed transformer. Ntxiv mus, nws yog lub ntsiab tivthaiv rau kev txuas cov xov hlau ruaj khov rau sab nraud Circuit Court. Lub siab-voltage porcelain bushing yog qhov siab thiab loj, thaum lub low{11}}voltage porcelain bushing yog luv dua.
6. Sib cais cov kais dej
Rau cov roj-immersed transformers, hloov cov kais dej ntawm qhov siab -voltage winding thiab kho qhov kais dej tuaj yeem nce lossis txo tus naj npawb ntawm cov lem nyob rau hauv ib feem ntawm cov thawj winding, yog li hloov qhov voltage piv thiab ua tiav cov kev cai voltage. Roj-immersed transformers uas raug tshem tawm ntawm kev ua haujlwm thiab txiav tawm ntawm daim phiaj hluav taws xob tau hloov kho nyob rau hauv qhov hluav taws xob los ntawm kev hloov ntawm tus kais hloov chaw, uas yog hu ua tsis muaj -load voltage regulation.
7. Gas relay
Cov roj relay txuas mus rau nruab nrab ntawm lub raj roj hmab nruab nrab ntawm lub tank roj thiab cov roj reservoir ntawm cov roj-immersed transformer, thiab txuas nrog rau kev tswj Circuit Court los tsim cov roj tiv thaiv. Kev sib cuag sab saud ntawm cov roj relay thiab lub teeb hluav taws xob hluav taws xob tsim hluav taws xob tswj kev ywj pheej, thiab qis txuas ntawm cov roj relay txuas nrog rau sab nraud Circuit Court los tsim cov roj tiv thaiv hnyav. Txoj haujlwm roj hnyav ua rau lub siab -voltage universal circuit breaker los tawm lub teeb liab ua haujlwm hnyav.
8. tawg-cov pov thawj tube
Qhov tawg-cov pov thawj tube yog cov cuab yeej tiv thaiv kev nyab xeeb rau cov roj- raus transformers. Nws txuas nrog rau sab sauv ntawm lub hau ntawm cov roj -immersed transformer. Lub foob pob tawg-cov pov thawj yog nyob rau hauv kev sib txuas lus nrog cov huab cua. Thaum muaj teeb meem tshwm sim thiab ua kom sov, cov roj hauv cov roj -immersed transformer yuav vaporize, ua rau cov roj relay xa tawm lub tswb ceeb toom lossis kaw lub hwj chim los tiv thaiv cov roj tank tsis txhob tawg.
