Taw qhia
Kub lossis kub nce yog qhov tseem ceeb tshaj plaws rau kev qhia txog kev ua haujlwm ntawm lub tshuab hloov pauv - seb nws puas nyob hauv kev ua haujlwm ib txwm muaj, muaj kev ua yuam kev, lossis ua haujlwm tsis zoo.
Thaum lub sijhawm ua haujlwm, transformers tsim tooj liab thiab hlau poob, ob qho tib si hloov mus rau hauv tshav kub. Qhov cua sov no ua rau cov tub ntxhais thiab cov cua sov ua kom sov, nce qhov kub ntawm tag nrho cov transformer. Tsis tas li ntawd, cov windings lawv tus kheej ua kom sov vim cov dej ntws tam sim no. Thaum tshav kub dissipated rau ib puag ncig mus txog equilibrium nrog lub internally generated tshav kub, qhov kub ntawm tag nrho cov transformer Cheebtsam stabilize ntawm ib tug ruaj khov tus nqi.
Yog hais tias ib feem ntawm lub transformer ua hauj lwm saum toj no nws tso cai kub ntau yam rau ib tug ncua sij hawm, lub transformer lub rwb thaiv tsev yog raug rau kev puas tsuaj thiab yuav yooj yim tawg los ntawm high voltage. Yog li ntawd, nyob rau hauv ib txwm ua hauj lwm tej yam kev mob, lub transformer kub yuav tsum ib txwm nyob twj ywm nyob rau hauv lub tso cai txwv ntawm nws cov ntaub ntawv rwb thaiv tsev.
Kub Rise Limits
Qhov ntsuas kub nce siab yog nyob ntawm chav kawm thermal ntawm cov khoom siv rwb thaiv tsev, piv txwv li qhov ntsuas kub ntawm 40 degree. Lub ntsiab txwv yog raws li nram no:
| Rwb thaiv tsev Class | Txwv kub | Qhov ntsuas kub nce siab (K) | Siv tau hom Transformer |
| A | 105 degree | 65 | Roj- raus (Winding) |
| A | 105 degree | 55 | Roj- raus (Oil) |
| A | 105 degree | Tsawg dua los yog sib npaug li 45 | Roj- raus (Top Roj) |
| A | 105 degree | 60 | Qhuav - hom |
| B | 130 degree | 80 | Qhuav - hom |
| F | 155 degree | 100 | Qhuav - hom |
| H | 180 degree | 125 | Qhuav - hom |
Ua rau Cov Kub Kub Tshaj Tawm
Qhov kub siab tshaj plaws nyob rau hauv lub transformer qhia tau hais tias muaj kev txhaum sab hauv, xws li kev sib cuag tsis zoo nyob rau hauv tus kais hloov pauv, inter-tig luv Circuit Court nyob rau hauv windings, los yog luv luv Circuit Court ntawm cov hlau core laminations. Thaum luv luv Circuit Court tshwm sim ntawm laminations, core poob nce, tsa cov roj kub thiab ua kom cov roj aging. Kev tsom xam roj hauv cov xwm txheej zoo li no tuaj yeem nthuav tawm cov sludge deposition tseem ceeb, darkening ntawm cov xim roj, thiab qhov qis qis.
Teb rau qhov kub thiab txias nce
1.Piv cov roj kub ntawm lub transformer nyob rau hauv tib lub load thiab txias tej yam kev mob.
2.Ua pov thawj qhov tseeb ntawm qhov ntsuas kub ntsuas kev nyeem ntawv.
3.Nrhiav lub transformer txias system.
Rau tag nrho cov cua txias tsis ua hauj lwm uas tsis tuaj yeem kho thaum ua haujlwm - Tam sim ntawd tshem lub transformer tawm ntawm kev pab kho.
Rau ib feem tsis ua hauj lwm (piv txwv li, qee cov kiv cua lossis cov cua txias) - Kho cov txheej txheem ntawm qhov chaw thiab kho cov khoom tsis raug.
Yog tias qhov ntsuas cua txias tau lees paub qhov qub tab sis qhov kub thiab txias tseem siab - Qhov no qhia tau hais tias muaj kev ua txhaum sab hauv. Yog tias cov cuab yeej tiv thaiv tsis ua haujlwm, yuav tsum tau kaw tam sim rau kev tshuaj xyuas sab hauv thiab kho.
Xaus
Kev tswj qhov ntsuas kub ntawm transformer yog ib txoj haujlwm ua haujlwm. Peb cia siab tias phau ntawv qhia no yuav pab tau. Ntawm VKE Transformer, peb tsim txhua chav tsev nrog kev nyab xeeb thiab kev ntseeg tau raws li peb qhov tseem ceeb tshaj plaws. Peb lub hom phiaj los ua koj tus khub muaj kev vam meej hauv kev ua kom lub zog ua haujlwm zoo.