TusSFRA (cheb zaus cov neeg soj ntsuam) kuajyog cov cuab yeej kuaj mob muaj zog siv los ntsuas cov neeg kho tshuab kev ntseeg siab thiab kev noj qab haus huv ntawm transformer windings. Los ntawm kev txheeb xyuas cov hloov pauv tau ntau zaus teb, SFRA xeem pab pom cov teeb meem xws li winding deformations, kev puas tshuab kev puas tsuaj, thiab tig luv. SFRA yog cov txheej txheem kuaj tsis yog-ua kom nquag siv rau cov kev saib xyuas thiab kev saib xyuas ntawm cov hluav taws xob hloov kho. Hauv qab no yog cov lus nug ntsig txog SFRA xeem cov khoom siv.
1. Dab tsi yog SFRA (cheb zaus cov lus teb cov lus teb)?
SFRA (cheb zaus kev tshawb xyuas) yog cov txheej txheem kuaj mob uas siv los ntsuas qhov mob ntawm cov chaw hloov chaw thiab kev txheeb xyuas cov lus teb. SFRA ntsuas qhov kev cuam tshuam ntawm cov transformance ntawm ntau zaus, uas tuaj yeem pab nrhiav kev hloov pauv ntawm cov qauv windings, xws li cov kev hloov pauv, deformations, lossis luv voj voog.
2. Koj cov khoom siv SFRA ua haujlwm li cas?
SFRA cov khoom siv ua haujlwm los ntawm kev thov tus cheb ntawm zaus rau transformer thawj lub zog lossis ntsuas qhov ua rau cuam tshuam ntawm txhua zaus. Cov lus teb tau sau tseg thiab tshuaj ntsuam kom paub cov kev sib txawv ntawm cov kev cia siab ntawm cov neeg tau txais kev noj qab haus huv. Kev hloov pauv ntawm cov yam ntxwv uas tsis tuaj yeem yuav qhia tau:
WINDING ALLPLACIE: Cov tshuab txav lossis hloov chaw nyob rau hauv transformer windings vim sab nraud cov rog zoo li thauj lossis hluav taws xob hluav taws xob.
Luv tig: Cov teeb meem uas ib feem ntawm winding yog luv-ciruited, uas tuaj yeem cuam tshuam rau transformer cov yam ntxwv hluav taws xob.
CENTER DREFORMATION: Hloov pauv cov tub ntxhais sib nqus ntawm cov hloov pauv, uas tuaj yeem cuam tshuam kev ua tau zoo.
Qhov kev ntsuam xyuas feem ntau cuam tshuam nrog:
Txhaj tshuaj cheb cov teeb liab: lub teeb liab npog qhov ntau ntau (piv txwv li ntawm 10 hz rau ob peb lub mHz) tau txhaj rau hauv lub transformer lub winding.
Zaus cheb: Qhov kev teb ntawm cov transformer yog sau cia ntau zaus.
Kev Tshawb Fawb Kev Tshawb Fawb: Qhov kev ntsuas muab piv rau cov kev ntsuas ntsuas rau ib qho kev ntsuas lossis cov lus teb rau kev txiav txim siab txhua qhov txawv txav.
3. Cov ntsuas SFRA li cas?
SFRA ntsuam xyuas cov khoom siv feem ntau ntsuas cov hauv qab no:
Impedance: Qhov fab ntxeev rau kev ntws tam sim no ntawm ntau zaus, uas muab cov ntaub ntawv ntsig txog cov tshuab hluav taws xob thiab hluav taws xob hloov cua.
Zaus teb: Cov lus teb ntawm tus transformer rau kev siv cov paib, feem ntau nyob rau hauv daim ntawv ntawm zaus spectrum (graph).
Theem Lub Kaum: Cov theem hloov ntawm cov teeb liab thov thiab ntsuas cov lus teb, uas tuaj yeem qhia cov teeb meem nrog teeb meem nrog cov teeb meem winding.
Kev sib txawv los ntawm cov hauv paus: Ib qho kev sib txawv ntawm cov kev xav tau cov khoom pom zoo, uas tuaj yeem qhia cov tshuab hluav taws xob lossis cov teeb meem hluav taws xob.
4. Vim li cas SFRA kuaj tseem ceeb?
SFRA kuaj yog qhov tseem ceeb rau cov laj thawj hauv qab no:
Kev Ntsuam Xyuas Winding: nws kuaj pom cov teeb meem kev kho tshuab, xws li kev tsis zoo, deform, lossis pob txha lov, uas tuaj yeem cuam tshuam kev hloov pauv.
Kev Tswj Xyuas Mob: SFRA pab saib xyuas kev hloov pauv ntawm cov hloov pauv tshuab thiab hluav taws xob dhau sijhawm, ua kom pom kev txij nkawm.
Tsis yog-ua kev puas tsuaj: SFRA yog qhov tsis-cuam tshuam, tsis yog-ua kev puas tsuaj, txhais tau tias nws tsis ua kev puas tsuaj thaum muab cov ntaub ntawv kuaj kws kuaj mob.
Thaum Ntxov txhaum kev txhaum: SFRA tuaj yeem txheeb xyuas cov teeb meem uas tsis tuaj yeem pom tau siv lwm txoj hauv kev, xws li kev ntsuam xyuas ib nrab lossis rwb thaiv tsev ib nrab. Qhov no suav nrog cov teeb meem xws li winding hloov, tshuab puas thaum thauj, lossis kev sib txuas lossis kev sib txuas.
Kev kuaj mob lub cuab tam rau cov neeg puas tsuaj: SFRA yog muaj txiaj ntsig tshwj xeeb rau kev kuaj pom ntawm cov khoom cua hauv sab hauv uas tsis muaj zog, cov teeb meem tseem ceeb hauv lub transformer.
5. Yuav ua li cas feem ntau yuav tsum tau kuaj SFRA?
Qhov zaus ntawm SFRA kev sim nyob ntawm ntau yam, suav nrog lub hnub nyoog hloov pauv, nws qhov kev ua haujlwm hauv lub cev. Cov sijhawm kuaj cov sijhawm muaj xws li:
Thaum nruab nrab \/ commissioning: los tsim kom muaj ib lub zaus zaus teb rau cov transformer.
Ua ntej thiab tom qab kev saib xyuas loj: los ntsuas cov neeg kho tshuab kev ntseeg siab ntawm cov windings tom qab txhua qhov kev kho tau zoo lossis txij nkawm.
Kev Tu Siab Li Qub: SFRA tshuaj ntsuam tej zaum yuav ua txhua 2-3} xyoo ua ib feem ntawm cov kev saib xyuas kev noj qab haus huv niaj hnub.
Tom qab cov xwm txheej: SFRA yuav tsum tau ua tom qab cov xwm txheej tseem ceeb xws li kev ua txhaum, ntau dua, raws li kev thauj mus los ntxhov siab ntawm cov windings.
Hauv qhov hloov siab tseem ceeb, SFRA tuaj yeem ua tau txhua xyoo lossis ua ib feem ntawm kev soj ntsuam kev saib xyuas kev pabcuam.
6. Qhov SFRA Xeem Tshawb nrhiav?
SFRA cov khoom siv tau tuaj yeem paub ntau cov teeb meem cuam tshuam nrog cov tshuab thiab hluav taws xob ntawm cov windformer, suav nrog:
Winding Alpplacement: kev txav ntawm lub cev ntawm cov windings, uas yuav tshwm sim vim yog kev ua txhaum sab hauv, hluav taws xob tshuab hluav taws xob (piv txwv li, thaum caij tsheb thauj mus los), lossis thermal expansion.
WINDING deformation: qhov distortion ntawm windings uas tuaj yeem cuam tshuam rau tus hloov pauv cov lus teb tsis sib xws.
Cov luv luv-circuits: hluav taws xob ua txhaum nyob rau hauv lub windings, xws li luv hloov lossis tsis zoo sib txuas.
Cov kev txhaum tseemceeb: Teeb meem nrog cov sib nqus tub ntxhais, xws li cov hlau nplaum, xws li cov lus lamination xoob, tuaj yeem cuam tshuam rau cov lus teb kom ntau.
Kev Sib Kis: Qhov xwm txheej uas muaj ob lossis ntau dua cov cua siv hluav taws xob ua ke.
Los ntawm kev sib piv cov kev ntsuas zaus teb nrog cov lus teb lossis siv teb, sib txawv tuaj yeem qhia tau ib qho kev ua txhaum no, txawm tias tsis pom sab nraud kev puas tsuaj.
7. Dab tsi ntawm cov hloov pauv tuaj yeem sim siv SFRA cov khoom siv?
SFRA cov khoom siv SFRA tuaj yeem siv rau ntau hom hloov pauv, suav nrog:
Lub zog hloov hluav taws xob
Kev faib tawm hloov
Cov kev hloov pauv (piv txwv li, hloov pauv tam sim no thiab hluav taws xob hloov hluav taws xob)
Autotransformers
Rectifier Transformers
Shunt reactors
High-voltage kuaj units hauv kev hloov
SFRA kev sim yog siv rau cov roj roj puv thiab cov tshuab hluav taws xob qhuav, tsuav yog lawv muaj cov kev ntsuas thiab tsim nyog rau kev sim.
8. Tus SFRA ntsuam xyuas tau ua li cas?
Cov kauj ruam raug uas koom tes nrog ua SFRA xeem yog:
Kev npaj: lub transformer yog de-energized, thiab cov khoom siv xeem yog txuas nrog cov terminals ntawm transformals windings.
Kuaj teeb: Cov khoom siv xeem siv cov cim tsis sib xws (xws li los ntawm cov nquag nquag) rau thawj zaug lossis theem nrab winding ntawm lub transformer.
Zaus cheb: SFRA Cov Khoom Siv cov lus teb cov lus teb ntawm cov transformer thoob plaws ntau zaus.
Kev Sau Cov Ntaub Ntawv: Cov ntaub ntawv yog plotted raws li daim duab qhia impedance vs. zaus (lossis cov lus teb ntau).
Kev Ntsuam Xyuas: Cov txiaj ntsig tau raug tshuaj xyuas, thiab cov hloov hluav taws xob cov lus teb yog muab piv rau cov ntaub ntawv baseline lossis cov chaw tsim khoom cov kev qhia tshwj xeeb.
Kev txhais lus: Cov kev sib txawv lossis cov kev sib txawv hauv cov sijhawm ua rau muaj cov teeb meem uas muaj peev xwm qhia cov teeb meem, xws li cov teeb meem cua tshuab, lossis cov teeb meem tseem ceeb.
Cov txiaj ntsig tau tshwm sim tau pom raws li cov duab kab, uas qhia txog kev teb cov lus teb, uas yuav tsum muaj cov txiaj ntsig zoo ib yam rau cov hauv paus tseem ceeb rau kev noj qab haus huv.
9. Qhov kev sim SFRA yog qhov tseeb?
Qhov tseeb ntawm SFRA kuaj yog cuam tshuam los ntawm ntau yam:
Cov Khoom Siv Kuaj: Muaj cov khoom siv zoo, cov khoom siv ntsuas tau zoo muab cov txiaj ntsig tau muab rau cov txiaj ntsig zoo thiab muaj tseeb.
Qhov tseeb ib puag ncig: sab nraud sab nraud xws li qhov kub thiab txias, av noo, thiab kev cuam tshuam hluav taws xob tuaj yeem cuam tshuam qhov tseeb ntawm kev ntsuas.
Kev ntsuas kev ntsuas: SFRA kev soj ntsuam cov txiaj ntsig tuaj yeem sib txawv raws li cov kev hloov pauv hloov tshiab hloov pauv thiab cov xwm txheej ntawm cov windings.
Feem ntau, SFRA kuaj yog qhov tseeb thiab muab cov ncauj lus kom ntxaws rau hauv kev hloov pauv kev noj qab haus huv. Txawm li cas los xij, muab piv rau lub sijhawm sib piv rau lub sijhawm (ntau dua li kev ntsuas ntawm tus kheej) tuaj yeem nkag siab zoo dua ntawm cov hloov pauv tus mob.
10. Dab tsi yog qhov zoo ntawm kev siv SFRA cov khoom siv?
Qhov zoo ntawm kev siv cov khoom siv SFRA suav nrog:
Tsis yog-kev sim ua kom puas: SFRA tsis puas cov hloov pauv thiab tuaj yeem ua kom muaj kev nyab xeeb yam tsis tau txais kev hloov pauv ntawm kev pabcuam (nyob ntawm kev ntsuas ntsuas
Thaum ntxov kev txhaum teeb meem ua ntej lawv ua rau cov kev ua tsis tiav, tso cai rau kev twv xyuas thiab txo qis downtime.
Kev Tshawb Xyuas Kev Tshawb Xyuas: SFRA muab cov inscigt rau hauv cov neeg kho tshuab kev ntseeg siab ntawm lub transformer lub windings, uas lwm qhov kev sim (piv txwv li, rwb thaiv tsev tsis kam) tsis pom.
Kev Tu Nqi-los ntawm kev txheeb xyuas cov neeg ua txhaum thaum ntxov, SFRA pab txo qhov xav tau ntawm kev kho nqi thiab downtime.
Portable: Niaj hnub SFra ntsuas cov khoom siv yog feem ntau nqa khoom thiab tuaj yeem siv rau hauv daim teb, ua rau lawv muaj haum rau kev sim tshuaj thiab kev ua haujlwm tom qab.
11. Yuav ua li cas SFRA piv rau lwm txoj kev ntsuas hloov pauv?
SFRA kuaj yog ntxiv rau lwm txoj kev ntsuam xyuas transformer. Txhua qhov kev xeem ntsuas sib txawv ntawm tus hloov pauv tus mob:
Rwb thaiv tsev tiv thaiv: ntsuas qhov mob ntawm cov rwb thaiv tsev thiab cov hloov pauv lub peev xwm los tiv thaiv hluav taws xob xau.
Windering kev kuaj: Kev ntsuas cov kev tiv thaiv ntawm cov windedance windings kom paub cov neeg yuam kev zoo li luv luv ci lossis muaj windings tawg.
Kev kuaj mob ib nrab kev tawm: Tshawb nrhiav cov hluav taws xob hluav taws xob hauv ib cheeb tsam uas yuav qhia cov rawv thaiv cov kev ua kom muaj kev cuam tshuam.
Dielectric kev xeem: kev sim cov rwb thaiv tsev cov khoom diishectric nyob rau hauv cov hluav taws xob ntau.
Tsis zoo li cov kev ntsuam xyuas no, SFRA tshwj xeeb tsom rau cov kws kho tshuab thiab cov teeb meem uas muaj transformer windings thiab tub ntxhais.
12. Yuav ua SFRA kuaj tau ua rau ntawm kev hloov pauv ntawm ib qho loj me?
Yog lawm, SFRA kuaj yuav ua tau ntawm cov hloov pauv ntawm ntau qhov ntau thiab tsawg, los ntawm cov hloov hluav taws xob me me rau cov hluav taws xob loj. Txawm li cas los xij, rau cov hloov pauv loj dua, kev sim teeb tsa yuav xav tau cov cuab yeej siv ntau dua, thiab cov txheej txheem sim yuav nyuaj. Lub transformer tus ntsuas qhov hluav taws xob voltage thiab cua tshuab winding kuj tseem cuam tshuam rau kev teeb tsa thiab ntau zaus siv rau kev sim.
Yog tias koj tab tom nrhiavSFRA kev ntsuam xyuas cov khoom siv SFRAthiab cov chaw muab khoom, thov koj xav tiv tauj peb rau qhov ua tau zoo thiab googlNqe ntawm SFRA cov khoom sivthiab cov lus qhia ntxaws ntxiv. Ua lub Hoobkas ntawm SFRA cov khoom siv, dhau los, peb tsim, kev tsim khoom, kev tsim khoom thiab lag luam hauv Suav teb, peb muaj ntau hom SFRA cov khoom siv rau kev muag khoom los daws koj cov teeb meem.