Dab tsi yog cov teeb meem tshwm sim nrog Transformer Windings thiab lawv tuaj yeem kho li cas?

Transformer windingsua ntau qhov hnyav lifting hauv transformer. Lawv nqa tam sim no, hloov hluav taws xob hluav taws xob, thiab ua haujlwm nrog cov txheej txheem rwb thaiv tsev kom cov transformer ua haujlwm zoo. Yog vim li ntawd, thaum ib yam dab tsi mus tsis ncaj ncees lawm nrog atransformer winding, qhov teeb meem tuaj yeem ua loj heev sai sai.

Cov teeb meem winding tuaj yeem yog los ntawm luv luv - Circuit Court quab yuam, overheating, rwb thaiv tsev laus, noo noo, tsim tsis xws luag, los yog txawm roughly tuav thaum thauj. Qee qhov kev ua txhaum tshwm sim sai sai, thaum lwm tus tsim maj mam dhau xyoo ntawm kev ua haujlwm.

Qhov xwm zoo yog tias muaj ntau qhov teeb meem winding tuaj yeem kuaj pom ua ntej lawv tig mus rau qhov tsis ua haujlwm loj. Kev sim tsis tu ncua thiab siv taucov lus qhia txog kev tu vaj tse transformertuaj yeem ua qhov sib txawv loj.

Common Transformer Winding Teeb meem

Lub winding raug cuam tshuam rau hluav taws xob thiab kev ntxhov siab txhua hnub. Thaum lub sij hawm luv luv, txawm li cas los xij, cov rog tuaj yeem dhau los ua ntau zaus ntau dua li kev ua haujlwm ib txwm muaj. Qhov no yog thaum cov kev qaug zog uas twb muaj lawm feem ntau tshwm sim.

Transformer Winding Deformation

Winding deformationyog ib qho ntawm qhov hnyav duateeb meem transformer, tshwj xeeb tshaj yog tom qab siab -tam sim no luv luv Circuit Court.

Nyob rau hauv ib txwm muaj, electromagnetic rog nyob rau hauv lub transformer yog zoo tswj. Thaum lub sijhawm ua txhaum, txawm li cas los xij, tam sim no tuaj yeem nce siab heev, thiab cov txiaj ntsig tau tuaj yeem thawb lossis rub cov windings tawm ntawm lawv txoj haujlwm qub.

Lub winding yuav txav radially, hloov axially, buckle, qaij, los yog compressed.Qee zaum qhov kev puas tsuaj yog pom tseeb thaum lub sijhawm tshuaj xyuas sab hauv. Lwm lub sij hawm, lub transformer tseem khiav thiab qhov teeb meem tsuas yog tshwm sim thaum kuaj hluav taws xob.

Qhov no yog qhov uas cov khoom tuaj yeem ua kom yuam kev.

Ib qho deformed winding yuav muaj cov rwb thaiv tsev me me dua li tsim los ua ntej. Cov neeg xyuas pib tuaj yeem txav los ze zog ua ke, muab kev ntxhov siab ntxiv rau ntawm qhov tig rwb thaiv tsev thiab lub ntsiab rwb thaiv tsev. Thaum kawg, qhov no tuaj yeem ua rau muaj kev cuam tshuam -tig luv luv lossis txawm tias muaj kev sib tw - mus rau - hauv av txhaum.

Tom qab qhov kev tshwm sim luv luv -circuit, yog li ntawd nws yog ib lub tswv yim zoo los xyuas lub transformer es tsis txhob tsuas yog xav tias txhua yam zoo.

Cov kev kuaj mob feem ntau suav nrogwinding resistance testing, lem ratio testing, zaus teb soj ntsuam (FRA), thiab kev ntsuas rwb thaiv tsev.

Tig rwb thaiv tsev tsis ua haujlwm thiab Inter-Tig luv Circuit Court

Kev rwb thaiv tsev ntawm tus kheej tig yog nyias, tab sis nws muaj txoj haujlwm tseem ceeb heev. Yog tias qhov rwb thaiv tsev tawg, ob lossis ntau lub lem tuaj yeem ua hluav taws xob txuas thaum lawv yuav tsum tsis txhob ua.

Qhov no yog lub npe hu ua ibinter-tig luv luv Circuit Court.

Thaum xub thawj, qhov txhaum yuav cuam tshuam tsuas yog ib feem me me ntawm qhov winding. Lub transformer tseem tuaj yeem tshwm sim ua haujlwm ib txwm, uas tuaj yeem ua rau qhov teeb meem yooj yim dua. Tab sis qhov luv luv lem tuaj yeem nqa tau lub siab circulating tam sim no thiab tsim kom muaj cua sov hauv zos.

Qhov kub ntawd ua rau cov rwb thaiv tsev ntau dua, uas tuaj yeem ua rau qhov teeb meem qub loj hlob sai.

Winding rwb thaiv tsev tsis ua hauj lwmtuaj yeem tshwm sim los ntawm lub sijhawm ntev - overheating, rwb thaiv tsev laus, noo noo, mechanical txav, ib feem ntawm qhov paug, hluav taws xob ntau dhau, lossis kev puas tsuaj rau lub cev.

Kev kho yog nyob ntawm seb cov engineers pom dab tsi. Yog tias qhov kev puas tsuaj loj heev, cov rwb thaiv tsev lossis cov khoom siv winding tej zaum yuav raug kho. Yog hais tias tus neeg xyuas pib lossis rwb thaiv tsev tau raug puas tsuaj, rewinding feem ntau yog qhov kev xaiv zoo dua.

Thiab muaj ib txoj cai tseem ceeb ntawm no: kho qhov ua rau, tsis yog cov tsos mob xwb. Yog hais tias overheating ua rau lub rwb thaiv tsev tsis ua hauj lwm, qhov txias los yog loading teeb meem kuj yuav tsum tau daws.

Lub ntsiab rwb thaiv tsev tawg

Transformer windings kuj tso siab raulub ntsiab rwb thaiv tsevkom cais cov winding los ntawm cov tub ntxhais, lub tank, lwm yam windings, thiab grounded Cheebtsam.

Raws li lub hnub nyoog rwb thaiv tsev, nws cov hluav taws xob thiab cov khoom siv dag zog tuaj yeem txo qis. Cov dej noo ua rau muaj teeb meem loj dua, tshwj xeeb hauv cov roj-immersed transformers. Cov roj uas tsis huv lossis degraded insulating tuaj yeem txo qhov kev ua haujlwm ntawm dielectric tag nrho.

Winding deformation yog lwm qhov ua rau. Yog hais tias lub winding txav tom qab luv luv Circuit Court, qhov kev ncua deb ntawm cov rwb thaiv tsev yuav ua me dua li qhov xav tau. Qhov ntawd ua rau muaj kev ntxhov siab ntxiv ntawm hluav taws xob thiab ua rau muaj kev cuam tshuam ntawm kev rwb thaiv tsev.

Nyob ntawm qhov xwm txheej, kev kho yuav suav nrog kev kho cov roj transformer, lub tshuab nqus tsev kom qhuav, hloov cov khoom siv rwb thaiv tsev, kho lub winding, los yog rewinding tag nrho cov seem uas puas lawm.

Ib qho kev puas tsuaj loj transformer winding yuav tsum tau ua los ntawm cov neeg ua haujlwm kho qhov tsim nyog transformer es tsis yog los ntawm kev kho sai.

Radial Instability ntawm Transformer Windings

Radial instability piav qhia txog qhov tsis xav tau txav ntawm qhov cua mus rau qhov chaw lossis deb ntawm qhov chaw ntawm lub tshuab hloov pauv.

Qhov no muaj feem cuam tshuam nrog luv luv -circuit rog. Thaum muaj qhov txhaum loj tam sim no ntws los ntawm cov windings, muaj zog electromagnetic quab yuam ua rau cov conductors. Yog hais tias tus neeg kho tshuab qauv tsis muaj zog txaus, lub winding yuav buckle los yog deform.

Piv txwv li, ib sab hauv winding yuav raug thawb rau sab hauv, thaum lub winding sab nraud tuaj yeem raug yuam tawm sab nraud. Thaum lub winding poob nws cov duab qub, nws lub zog txhua yam kuj yuav raug txo.

Qhov kev txhaum thib ob tuaj yeem ua rau muaj kev puas tsuaj ntau dua.

Kev kho radial deformation nyob ntawm nws qhov hnyav. Kev txav me me tuaj yeem xav tau kev sim thiab tshuaj xyuas kom ntxaws. Kev deformation loj dua tuaj yeem xav tau sab hauv disassembly, mechanical restoration, lossis kho winding. Yog hais tias cov conductors puas lawm, rewinding yuav tsum tau.

Los ntawm kev tsim qauv, kev txhawb nqa tus neeg xyuas pib zoo, spacers, clamping structures, thiab luv luv -circuit xam yog qhov tseem ceeb.

Axial Instability ntawm Transformer Windings

Axial instability yog lwm yam teeb meem kev siv tshuab.

Es tsis txhob txav mus rau sab hauv lossis sab nraud, lub winding txav raws nws txoj kab ntsug.Thaum lub sij hawm luv luv, cov hluav taws xob hluav taws xob tuaj yeem thawb cov ntu ntawm sab saud lossis nqes mus. Qee zaum, cov seem winding yuav ua rau compressed, ncab, qaij, lossis hloov chaw.

Tsis muaj zog txhua yam kev txhawb nqa, clamping tsis txaus, lossis poob ntawm clamping siab dhau sijhawm tuaj yeem ua rau muaj kev pheej hmoo.

Axial txav tsis yog ib qho teeb meem ntawm kev siv tshuab xwb. Thaum winding seem txav mus, rwb thaiv tsev thaiv thiab tshem tawm tuaj yeem hloov pauv. Qhov ntawd tuaj yeem pab txhawbwinding rwb thaiv tsev tsis ua hauj lwm.

Thaum lub sijhawm tshuaj xyuas, cov kws tshaj lij tuaj yeem tshawb xyuas qhov siab qhov siab, qhov kawg blocks, spacers, clamping siab, thiab txoj haujlwm ntawm winding txheeb ze rau lwm yam khoom siv sab hauv.

Lub hom phiaj tsis yog kom nruj txhua yam kom ntau li ntau tau. Ntau dhau clamping siab tuaj yeem ua rau rwb thaiv tsev puas. Cov qauv siv tshuab yuav tsum tau rov qab los raws li qhov hloov pauv ntawm tus qauv tsim qauv.

Winding Overheating: Ib qho teeb meem uas koj yuav tsum tsis txhob tsis quav ntsej

Tsis yog txhua qhov teeb meem winding pib nrog qhov luv luv luv.

Overheating yog lwm yam ua rau winding deterioration. Transformers ua haujlwm nyob rau hauv cov khoom hnyav ib txwm ua kom sov ntau dua, tab sis qhov kub ntau dhau kuj tuaj yeem ua rau cov cua txias tsis zoo, thaiv cov radiators, kiv cua lossis twj tso kua mis tsis ua haujlwm, qhov kub thiab txias, lossis cov dej sib haum xeeb.

Ntev - lub sij hawm overheating speeds li rwb thaiv tsev laus. Hauv cov roj- puv transformers, nws tseem tuaj yeem ua kom cov roj deterioration thiab tsim cov pa roj uas yuav raug kuaj pom los ntawm kev txheeb xyuas cov pa yaj (DGA).

Thaum lub tshuab hluav taws xob ua haujlwm kub dua li qhov xav tau, tshawb xyuas lub nra, qhov system txias, roj, qhov cua, thiab ntsuas kub. Txo cov load yuav pab tau nyob rau hauv lub sij hawm luv luv, tab sis nws tsis yog ib qho kev daws teeb meem mus tas li yog tias qhov teeb meem txias hauv qab tseem nyob.

Yuav Ua Li Cas Diagnose Transformer Winding Teeb meem

Kev saib xyuas zoo yog hais txog kev nrhiav teeb meem ntxov, tsis txhob tos kom lub tshuab hloov pauv tsis ua haujlwm.

Winding kuj kuajtuaj yeem nthuav tawm qhov sib txawv ntawm cov theem thiab tuaj yeem txheeb xyuas cov neeg ua haujlwm puas, kev sib txuas xoob, lossis lwm yam kev ua haujlwm tsis zoo.

Transformer hloov qhov piv ntsuastxheeb xyuas seb qhov kev hloov pauv tiag tiag puas phim tus nqi xav tau. Cov kev hloov pauv tsis xav tau tuaj yeem qhia tau tias muaj kev puas tsuaj los yog kais hloov cov teeb meem.

Frequency response analysis (FRA)yog tshwj xeeb tshaj yog pab tau tom qab ib tug transformer tau ntsib ib tug luv luv Circuit Court. Kev hloov pauv hauv FRA kos npe tuaj yeem qhia txog kev txav los yog deformation ntawm winding thiab core sib dhos.

Rwb thaiv tsev tsis kam thiab kev ntsuas hluav taws xobtuaj yeem muab cov ntaub ntawv ntxiv txog kev rwb thaiv tsev. Rau cov roj-immersed transformers, DGA kuj tuaj yeem pab txheeb xyuas qhov kub dhau, arcing, thiab lwm yam teeb meem sab hauv.

Tsis muaj ib qho kev sim qhia tag nrho zaj dab neeg. Hauv kev xyaum, engineers feem ntau sib piv cov txiaj ntsig tam sim no nrog cov ntaub ntawv kuaj lub Hoobkas, cov ntaub ntawv khaws cia yav dhau los, thiab lwm yam kev kuaj mob.

Tswv yim Transformer Maintenance Tips

Ob peb txoj kev saib xyuas ncaj qha tuaj yeem tiv thaiv ntau yam teeb meem winding.

Ua ntej, khaws qhov ntsuas kub ntawm transformer tswj. Zam kom tsis txhob muaj ntau dhau thiab ua kom cov kiv cua, twj tso kua mis, radiators, thiab cua tshuab ua haujlwm zoo.

Qhov thib ob, xyuam xim rau rwb thaiv tsev. Rau cov roj-immersed transformers, cov roj zoo thiab tswj cov dej noo yog qhov tseem ceeb tshwj xeeb. Kev ntsuam xyuas roj tsis tu ncua tuaj yeem qhia qhov tsis zoo ua ntej nws dhau los ua teeb meem loj.

luv- tiv thaiv Circuit Court kuj tseem ceeb. Kev sib koom ua ke tiv thaiv kom raug yuav tsum tshem tawm qhov tsis raug sab nraud sai sai. Lub sijhawm ntev ntawm lub tshuab hloov pauv raug cuam tshuam rau qhov ua txhaum tam sim no, qhov siab dua qhov kev ntxhov siab ntawm nws cov windings.

Thiab tom qab qhov ua txhaum loj, tsis txhob hla qhov kev tshuaj ntsuam vim tias lub tshuab hloov pauv tseem ua haujlwm. Lub winding tuaj yeem ua rau puas tsuaj yam tsis muaj qhov pom tseeb sab nraud.

Kev thauj mus los thiab kev teeb tsa yuav tsum tsis txhob saib dhau. Cov kev cuam tshuam muaj zog thaum lub sijhawm thauj mus los tuaj yeem hloov cov khoom siv sab hauv, thaum kev teeb tsa tsis raug tuaj yeem qhia txog kev ntxhov siab ntxiv.

Thaum twg yuav tsum tau hloov pauv lossis hloov pauv hloov?

Tsis muaj ib tug -size- haum- tag nrho cov lus teb. Kev txiav txim siab kho yog nyob ntawm hom thiab qhov kev puas tsuaj.

Qhov tseem ceeb yog kom nkag siab tias yog vim li cas lub winding ua tsis tiav nyob rau hauv thawj qhov chaw. Hloov qhov kev puas tsuaj uas tsis tau kho qhov teeb meem qub yog thov kom muaj teeb meem.

Piv txwv li, yog tias rov ua dhau los ua rau overheating, qhov tshiab winding nws thiaj li ntsib tib yam xwm txheej.

Kev xav zaum kawg

Transformer winding tsis ua haujlwm tuaj yeem muaj los ntawm cov rwb thaiv tsev medeterioration mus rau loj mechanical deformation yuav tsum tau ua tiav winding hloov. Cov hom tsis ua haujlwm tseem ceeb suav nrog kev hloov hluav taws xob tsis ua haujlwm, lub ntsiab rwb thaiv tsev tawg, radial instability, thiab axial instability.

luv- Circuit Court faults tsim nyog tau txais kev saib xyuas tshwj xeeb vim tias lawv tuaj yeem tsim cov tshuab hluav taws xob loj hauv lub tshuab hloov pauv. Txawm tias thaum lub transformer tseem khiav tom qab, zais winding deformation tseem tuaj yeem tshwm sim.

Tias yog vim li cas kev sim tsis tu ncua, ua kom txias kom zoo, tswj kev rwb thaiv tsev, luv luv - tiv thaiv Circuit Court, thiab kev tshuaj xyuas raws sij hawm yog qhov tseem ceeb heev.

Hauv lub ntiaj teb tiag tiag, kev tiv thaiv me ntsis kev saib xyuas mus ntev. Los ntawm kev soj ntsuam covtransformer winding, kuaj xyuas cov txiaj ntsig tsis zoo, thiab tshuaj xyuas cov cuab yeej tom qab qhov ua txhaum loj, cov neeg ua haujlwm tuaj yeem ntes tauteeb meem transformerua ntej lawv dhau los ua kev poob qis.

Rau cov tswv tsev transformer, EPC cov neeg cog lus, thiab cov pab pawg tu, txoj hauv kev yooj yim yog: saib xyuas, sim, tshawb xyuas, thiab kho lub hauv paus. Nws feem ntau pheej yig dua -thiab muaj kev ntxhov siab ntau dua- dua li kev cuam tshuam nrog lub tshuab hloov pauv tsis tau tom qab qhov tseeb.

Hu rau tam sim no