Lub tshuab ziab khaub ncaws qhuav, tseem hu ua qhuav transformer lossis cam khwb cia resin transformer, yog hom hluav taws xob hloov hluav taws xob uas tsis tas yuav muaj cov kua dej txias xws li roj. Hloov chaw, nws siv cov khoom siv rwb thaiv tsev los muab hluav taws xob rwb thaiv tsev thiab dissipate cua sov.
Cov tshuab ziab khaub ncaws qhuav feem ntau yog siv rau hauv ntau daim ntawv thov, suav nrog cov tsev lag luam, cov chaw tsim khoom, cov khoom siv hluav taws xob, cov tshuab hluav taws xob txuas ntxiv, thiab kev teeb tsa sab hauv tsev uas muaj kev nyab xeeb hluav taws kub ntxhov. Lawv muaj nyob rau hauv ntau qhov ntau thiab tsawg thiab qhov ntsuas hluav taws xob kom haum rau cov kev xav tau ntawm lub zog sib txawv.
Yog xav paub ntxiv txog lwm hom transformers thiab cov khoom siv hluav taws xob, thov mus saib Ryan. Ryan yog lub chaw tsim khoom ntawm transformers nrog keeb kwm ntawm ntau tshaj 15 xyoo hauv kev lag luam.
Vim li cas qhuav hom transformers siv?
1.Kev nyab xeeb hluav taws:Cov tshuab ziab khaub ncaws qhuav tsis muaj cov kua nplaum xws li roj, ua rau lawv tsis tshua muaj hluav taws kub. Qhov no ua rau lawv tsim nyog rau kev teeb tsa hauv thaj chaw muaj hluav taws kub xws li cov tsev lag luam, tsev kho mob, tsev kawm ntawv, thiab thaj chaw nyob.
2.Kev siv sab hauv tsev:Cov tshuab ziab khaub ncaws qhuav feem ntau yog siv rau hauv cov ntawv thov sab hauv uas qhov cua tsis muaj qhov txwv lossis qhov chaw muaj roj yuav muaj teeb meem. Txij li thaum lawv tsis xav tau roj-raws li cua txias, tsis muaj kev pheej hmoo ntawm cov roj to los yog kev sib kis, ua rau lawv xaiv qhov zoo tshaj plaws rau qhov chaw nyob sab hauv tsev.
3.Environmental xav txog:Qhuav hom transformers yog ib puag ncig tus phooj ywg ntau dua piv rau cov roj puv transformers. Lawv tshem tawm txoj kev pheej hmoo ntawm cov roj nchuav los yog xau, thiab lawv tsis tas yuav muaj cov txheej txheem ntim khoom lossis cov txheej txheem pov tseg roj. Qhov no ua rau lawv tsim nyog rau thaj chaw rhiab heev lossis qhov chaw uas muaj kev tswj hwm ib puag ncig nruj.
4.Maintenance Requirements:Qhuav hom transformers feem ntau xav tau kev saib xyuas tsawg dua piv rau cov roj puv roj transformers. Lawv tsis tas yuav kuaj roj, lim, lossis hloov roj. Qhov no txo cov nqi txij nkawm thiab kev poob qis uas cuam tshuam nrog kev ua haujlwm ntawm kev hloov pauv.
5.Noise txo:Cov tshuab ziab khaub ncaws qhuav zoo li tsim suab nrov tsawg dua piv rau cov roj puv roj transformers. Cov khoom siv rwb thaiv tsev siv nyob rau hauv qhuav transformers dampen vibrations thiab txo cov suab nrov tag nrho. Qhov no ua rau lawv haum rau cov ntawv thov uas txo cov suab nrov yog qhov tseem ceeb, xws li tsev kho mob, tsev qiv ntawv, lossis thaj chaw nyob.
6.High-altitude installations:Cov tshuab ziab khaub ncaws qhuav feem ntau nyiam rau qhov chaw siab siab qhov chaw uas cov roj puv hloov pauv tuaj yeem ntsib teeb meem vim qhov txo qis cua. Cov tshuab ziab khaub ncaws qhuav tsis muaj qhov txwv no thiab tuaj yeem ua haujlwm tau zoo ntawm qhov siab siab.
7.Aesthetic xav txog:Qhuav hom transformers muaj nyob rau hauv compact thiab aesthetically pleasing designs. Lawv tuaj yeem yooj yim sib xyaw rau hauv cov qauv tsim vaj tsev lossis kev teeb tsa uas qhov kev pom zoo yog qhov yuav tsum tau ua.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev xaiv ntawm hom transformer nyob ntawm ntau yam, nrog rau cov ntawv thov tshwj xeeb, cov khoom siv hluav taws xob, cov cai tswj kev nyab xeeb, thiab kev xav txog ib puag ncig.Kev sab laj Ryan tuaj yeem pab koj txiav txim siab txog hom transformer zoo tshaj plaws raws li koj xav tau.
Nyem no hu rau Ryan rau transformer technical solutions, transformer drawings, thiab cov nqi.
Yuav ua li cas qhuav transformers ua haujlwm?
Qhuav hom transformers muaj ob pawg ntawm insulated tooj liab los yog txhuas windings - thawj winding thiab thib ob winding. Thawj winding yog txuas nrog lub input voltage qhov chaw, thaum lub thib ob winding txuas nrog lub load.
Thaum lub alternating tam sim no (AC) ntws los ntawm cov thawj winding, nws tsim ib magnetic teb nyob ib ncig ntawm lub winding. Qhov no magnetic teb induces ib tug hloov magnetic flux nyob rau hauv lub transformer core.
Qhov hloov pauv sib nqus hauv cov tub ntxhais induces ib qhov hluav taws xob nyob rau hauv lub thib ob winding raws li Faraday txoj cai ntawm electromagnetic induction. Qhov loj ntawm qhov induced voltage nyob ntawm qhov sib piv ntawm cov thawj thiab theem nrab windings.
Thawj winding feem ntau yog tsim los kom muaj qib siab dua, thaum lub caij nplooj ntoos hlav winding yog tsim los muab qhov xav tau qis qis rau cov khoom thauj. Lub lem ratio txiav txim qhov voltage transformation ratio. Piv txwv li, yog tias qhov hloov pauv yog 1:10, thawj qhov hluav taws xob ntawm 1000 volts yuav ua rau qhov hluav taws xob thib ob ntawm 100 volts.
Cov tshuab ziab khaub ncaws qhuav siv cov khoom siv rwb thaiv tsev, xws li epoxy resin lossis cam khwb cia resin, muab hluav taws xob rwb thaiv tsev ntawm windings thiab lwm yam khoom. Cov ntaub ntawv no muaj cov khoom zoo dielectric, ua kom muaj kev nyab xeeb. Thaum tshav kub kub ua haujlwm yog dissipated los ntawm lub transformer nto siv tej yam ntuj tso convection los yog yuam cua txias, feem ntau yooj yim los ntawm cua txias fins los yog coils.
Zoo li txhua yam hloov pauv, cov tshuab ziab khaub ncaws qhuav pom qee lub zog poob thaum ua haujlwm. Cov kev poob no muaj xws li tooj liab poob (vim qhov tsis kam ntawm cov windings) thiab cov tub ntxhais poob (vim hysteresis thiab eddy tam sim no). Ryan siv zog los ua kom zoo dua qhov kev tsim hluav taws xob kom txo qis cov kev poob no thiab txhim kho kev ua haujlwm tag nrho.
Qhuav hom transformers muab hluav taws xob cais ntawm cov tswv yim thiab cov zis windings. Lawv kuj nthuav qhia cov kev cai thauj khoom, txhais tau hais tias lawv tuaj yeem tswj tau cov zis hluav taws xob ruaj khov txawm tias muaj qhov sib txawv ntawm cov khoom thauj.
Dab tsi yog qhov voltage ntawm qhuav hom transformer?
Qhov hluav taws xob ntawm lub tshuab hluav taws xob qhuav tuaj yeem sib txawv nyob ntawm nws daim ntawv thov thiab cov kev xav tau tshwj xeeb. Cov tshuab ziab khaub ncaws qhuav muaj nyob rau hauv ntau qhov kev ntsuas hluav taws xob kom haum rau cov tshuab hluav taws xob sib txawv thiab qib voltage. Nov yog qee qhov kev ntsuas hluav taws xob ntau rau cov tshuab ziab khaub ncaws qhuav:
1.Low Voltage (LV): Qhuav hom transformers tsim rau cov ntawv siv hluav taws xob tsawg feem ntau muaj cov thawj voltages txij li ob peb puas volts mus rau ob peb txhiab volts. Qhov nruab nrab voltage tuaj yeem qis dua, nyob ntawm qhov xav tau qhov hloov pauv hloov pauv hloov pauv.
2.Medium Voltage (MV): Qhuav hom transformers siv nyob rau hauv nruab nrab voltage daim ntaub ntawv yog tsim los tswj cov voltage ntau dua. Thawj qhov hluav taws xob tuaj yeem nyob ntawm ob peb txhiab volts mus rau kaum tawm txhiab tus volts, thaum qhov hluav taws xob theem nrab feem ntau qis dua, nyob ntawm qhov yuav tsum tau hloov pauv.
3.High Voltage (HV): Qhuav hom transformers tsim rau high voltage daim ntaub ntawv muaj peev xwm tuav heev high voltages thawj. Thawj qhov hluav taws xob tuaj yeem nyob ntawm kaum tawm txhiab tus volts mus rau ntau pua txhiab volts. Qhov thib ob voltage yog qis dua, nyob ntawm qhov kev hloov pauv.
Cov tshuab ziab khaub ncaws puas tuaj yeem siv sab nraud?
Yog lawm, cov tshuab ziab khaub ncaws qhuav tuaj yeem siv sab nraud, tab sis qee qhov kev txiav txim siab yuav tsum tau coj mus rau hauv tus account kom ntseeg tau tias lawv txoj haujlwm zoo thiab siv tau ntev. Nov yog qee yam yuav tsum xav txog thaum siv cov tshuab ziab khaub ncaws sab nraum zoov:
1.Enclosure: Qhuav hom transformers siv sab nraum zoov yuav tsum tau nyob rau hauv weatherproof thiab tiv thaiv enclosures. Cov ntaub thaiv npog no tiv thaiv lub tshuab hluav taws xob los ntawm ib puag ncig xws li nag, daus, plua plav, thiab tshav ntuj ncaj qha. Cov ntaub thaiv npog yuav tsum muaj kev tiv thaiv kev tiv thaiv tsim nyog (IP) txhawm rau tiv thaiv cov dej thiab cov khoom txawv teb chaws los ntawm kev nkag mus rau lub tshuab hloov pauv.
2.Ventilation: Lub qhov cua txaus yog qhov tseem ceeb rau cov tshuab ziab khaub ncaws qhuav kom dissipate cua sov zoo. Sab nraum zoov cov ntaub ntawv yuav tsum tau tsim los pab kom muaj cua txaus thiab tiv thaiv overheating. Lub kaw lus yuav tsum muaj qhov qhib qhov cua los yog kiv cua kom muaj cua txias txaus, tshwj xeeb tshaj yog nyob rau thaj chaw uas muaj qhov kub thiab txias.
3.Environmental Conditions: Qhuav-hom transformers siv sab nraum zoov yuav tsum tau tsim thiab ntsuas kom tiv taus qhov tshwj xeeb ib puag ncig ntawm qhov chaw teeb tsa. Qhov no suav nrog kev xav txog yam xws li qhov kub thiab txias, av noo, raug dej ntsev, thiab corrosive cua. Cov coatings tshwj xeeb lossis cov khoom siv yuav tsum tau txhim kho qhov hloov pauv qhov kev tiv thaiv rau cov xwm txheej no.
4.Mounting thiab Foundation: Kev txhim kho kom zoo thiab lub hauv paus yog qhov tseem ceeb rau kev teeb tsa sab nraum zoov. Lub transformer yuav tsum tau ruaj khov rau ntawm qhov chaw ruaj khov thiab theem kom ruaj khov thiab tiv thaiv kev vibration lossis txav. Kev tsim nyog hauv av yuav tsum tau muab los ua kom muaj kev nyab xeeb hluav taws xob.
5.Insulation thiab kev tiv thaiv: Qhuav-hom transformers siv sab nraum zoov yuav tsum muaj cov txheej txheem rwb thaiv tsev kom tiv taus qhov chaw sab nraum zoov thiab muaj peev xwm ya raws. Lub transformer yuav tsum tau tsim kom tau raws li qhov tsim nyog rwb thaiv tsev chav kawm ntawv thiab tiv taus cov kev ntsuas voltage.
6.Accessibility and Maintenance: Sab nraum zoov qhuav-hom transformers yuav tsum tau yooj yim rau kev soj ntsuam, tu, thiab kho tau. Lub kaw lus yuav tsum tso cai rau kev nyab xeeb thiab yooj yim nkag mus rau cov khoom siv hluav taws xob, cua txias, thiab lwm yam khoom siv.
Puas yog qhuav hom transformers muaj kiv cua?
Cov tshuab ziab khaub ncaws qhuav tuaj yeem muaj cov kiv cua lossis yuam cua txias tshuab, tab sis nws tsis yog qhov tshwj xeeb. Kev suav nrog cov kiv cua lossis yuam cua txias yog nyob ntawm qhov tsim tshwj xeeb thiab cov kev xav tau ntawm lub transformer. Nov yog qee cov ntsiab lus los xav txog:
1.Natural Convection Cooling: Qee qhov qhuav-hom transformers cia siab rau ntuj convection rau cua sov dissipation. Cov transformers no yog tsim los nrog cua txias fins los yog coils nyob rau sab nraud. Thaum tshav kub kub generated thaum lub sij hawm ua hauj lwm nce lawm, tsim ib tug khiav ntawm cov cua nyob ib ncig ntawm lub transformer, uas pab nyob rau hauv lub tshav kub dissipation. Ntuj convection txias tsis xav tau cov kiv cua thiab feem ntau yog siv rau hauv cov me me thiab qis zog transformers.
2.Forced Cua Txias: Hauv cov tshuab ziab khaub ncaws loj dua lossis cov uas muaj lub zog siab dua, yuam cua txias tuaj yeem ua haujlwm. Cov kev hloov pauv no tau nruab nrog cov kiv cua lossis lub tshuab cua uas nquag siv cua tshaj qhov txias fins lossis coils. Cov kiv cua txhim kho cov txheej txheem hloov hluav taws xob los ntawm kev ua kom cov cua ntws, yog li kev txhim kho qhov ua kom txias ntawm lub transformer. Kev quab yuam cua txias yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv cov ntawv thov uas lub tshuab hloov pauv xav tau los tswj cov khoom hnyav dua lossis ua haujlwm hauv ib puag ncig nrog qhov kub siab ambient.
Qhov kev txiav txim siab suav nrog lub kiv cua lossis yuam cua txias yog nyob ntawm cov yam ntxwv xws li lub tshuab hluav taws xob ntsuas hluav taws xob, qhov xav tau ntawm cov cua kub dissipation, thiab ib puag ncig. Transformers siv nyob rau hauv xav tau daim ntawv thov los yog cov neeg uas muaj lub hwj chim ntau dua cov kev ntsuam xyuas feem ntau suav nrog yuam cua txias kom ntseeg tau zoo cua sov dissipation thiab tswj xyuas qhov zoo ntawm kev khiav hauj lwm kub.
Dab tsi yog qhov poob ntawm ib hom qhuav transformer?
Qhuav hom transformers, zoo li lwm yam transformers, muaj ntau hom kev poob thaum ua haujlwm. Kev poob hauv lub tshuab ziab khaub ncaws tuaj yeem muab faib ua ob hom loj: tooj liab poob thiab cov tub ntxhais poob.
1.Copper Losses:Copper poob tshwm sim vim qhov tsis kam ntawm cov transformer windings. Cov kev poob no tau muab faib ua ob ntu:
ib. Ohmic los yog I^2R Losses: Cov kev poob no tshwm sim los ntawm qhov tam sim no ntws los ntawm qhov tsis kam ntawm transformer windings. Lawv ncaj qha proportional rau square ntawm tam sim no thiab feem ntau hu ua I^2R poob. Cov kev poob no tuaj yeem txo qis los ntawm kev siv cov khoom loj dua nrog kev ua haujlwm qis lossis los ntawm kev siv cov ntaub ntawv qib siab hauv cov khoom siv hluav taws xob.
b. Eddy Tam Sim No Losses: Eddy tam sim no yog circulating currents induced in the conductive parts of the transformer core because of the varying magnetic field. Cov tam sim no ua rau lub zog dissipation nyob rau hauv daim ntawv ntawm tshav kub thiab yog feem ntau txo los ntawm kev siv laminated los yog stacked core tsim, qhov twg cov tub ntxhais yog ua los ntawm nyias txheej ntawm hlau los yog hlau insulated los ntawm ib leeg.
2.Core Losses:Core poob tshwm sim nyob rau hauv lub transformer core vim yog ob yam tseem ceeb:
a.Hysteresis Losses: Hysteresis poob tshwm sim los ntawm kev rov ua hlau nplaum thiab demagnetization ntawm transformer core raws li qhov hloov pauv tam sim no ntws los ntawm cov windings. Cov kev poob no yog tshwm sim los ntawm lub zog uas yuav tsum tau ua kom rov kho cov khoom sib nqus hauv cov khoom tseem ceeb thiab raug txo kom tsawg los ntawm kev siv cov khoom siv hlau nplaum zoo nrog cov yam ntxwv tsis zoo hysteresis.
b.Eddy Tam sim no Losses: Eddy tam sim no induced nyob rau hauv lub transformer core kuj pab mus rau core poob. Cov kev poob no zoo ib yam li cov eddy tam sim no poob nyob rau hauv lub windings thiab yuav txo tau los ntawm kev siv laminated los yog stacked core tsim.
Tag nrho cov poob nyob rau hauv ib tug qhuav-hom transformer yog cov sum ntawm tooj liab losses thiab core poob. Transformer manufacturers muab cov ntaub ntawv hais txog qhov poob hauv lawv cov transformer specifications, feem ntau qhia raws li ib feem pua ntawm transformer tus nqi zog. Qhov poob cuam tshuam rau lub transformer efficiency, nrog ntau dua losses ua rau qis efficiency.
Kev siv zog ua kom zoo dua transformer tsim thiab kev tsim kho kom txo tau qhov poob thiab txhim kho kev ua tau zoo tag nrho. Qhov no suav nrog kev xaiv cov khoom tseem ceeb uas tsim nyog, ua kom zoo dua cov qauv siv winding, thiab siv cov txheej txheem txias kom ua kom cov cua sov los ntawm qhov poob.
Hom qhuav transformers puas muaj roj?
Tsis yog, qhuav-hom transformers tsis muaj roj. Lawv tau tsim los ua haujlwm yam tsis tas yuav tsum muaj cov kua coolant lossis insulating nruab nrab xws li roj. Hloov chaw, cov tshuab ziab khaub ncaws qhuav siv cov khoom siv rwb thaiv tsev, feem ntau ua los ntawm cov ntaub ntawv xws li epoxy resin lossis cam khwb cia resin, muab hluav taws xob rwb thaiv tsev thiab cua sov dissipation.
Tsis muaj roj nyob rau hauv qhuav-hom transformers ua rau lawv haum rau ntau yam kev siv nyob rau hauv uas muaj cov nplaim taws ua kua yog undesirable los yog ua rau muaj kev nyab xeeb. Lawv feem ntau siv nyob rau hauv cov tsev, cov chaw lag luam, thiab cov chaw lag luam uas muaj kev nyab xeeb hluav taws thiab kev txhawj xeeb ib puag ncig yog qhov tseem ceeb. Cov tshuab ziab khaub ncaws qhuav kuj tseem nyiam nyob rau hauv qhov chaw uas muaj kev saib xyuas kev nkag tau yooj yim lossis qhov uas muaj kev pheej hmoo ntawm cov roj to yuav ua rau muaj kev puas tsuaj loj lossis cuam tshuam.
Dab tsi yog qhov hluav taws kub txaus ntshai ntawm qhuav hom transformer?
Thaum lub tshuab ziab khaub ncaws qhuav feem ntau suav hais tias muaj qhov pheej hmoo hluav taws tsawg dua piv rau cov roj puv roj, lawv tsis muaj kev tiv thaiv tag nrho rau hluav taws kub. Qhov kev pheej hmoo hluav taws kub cuam tshuam nrog cov tshuab ziab khaub ncaws qhuav yog qhov qis dua vim tsis muaj cov roj flammable ua lub coolant.
Txawm li cas los xij, tseem muaj tej yam tseem ceeb uas tuaj yeem ua rau muaj kev phom sij rau hluav taws hauv cov tshuab ziab khaub ncaws:
1.Overheating: Yog tias lub tshuab hluav taws xob qhuav qhuav raug cua sov ntau dhau los ntawm kev ua haujlwm dhau, qhov cua tsis zoo, lossis lwm yam, nws tuaj yeem ua rau rwb thaiv tsev degradation thiab ua rau muaj hluav taws kub.
2.Insulation tsis ua hauj lwm: Thaum lub sij hawm, cov ntaub ntawv rwb thaiv tsev siv nyob rau hauv qhuav-hom transformers tuaj yeem deteriorate, ua rau rwb thaiv tsev tawg thiab muaj peev xwm ntawm arcing los yog luv luv Circuit Court, uas tuaj yeem ignite cov ntaub ntawv ib puag ncig.
3.Contaminants: Cov plua plav, av, lossis cov khoom siv hluav taws xob tuaj yeem sib sau ua ke ntawm lub tshuab hluav taws xob windings, tsim kom muaj peev xwm ua rau hluav taws xob arcing thiab ua rau muaj kev pheej hmoo ntawm hluav taws.
4.Improper installation los yog tu: installation tsis raug, tsis txaus clearance, tsis tsim nyog grounding, los yog tsis saib xyuas niaj hnub tu yuav ua rau muaj teeb meem hluav taws nyob rau hauv qhuav-hom transformers.
Txhawm rau txo qhov kev pheej hmoo ntawm hluav taws xob cuam tshuam nrog cov tshuab ziab khaub ncaws qhuav, nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov txheej txheem kev teeb tsa kom zoo, ua kom muaj cua txaus thiab cua txias, ua cov kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua, thiab ua raws li cov lus pom zoo rau kev txwv. Tsis tas li ntawd, kev siv hluav taws xob tshawb nrhiav thiab kev tua hluav taws hauv kev teeb tsa hluav taws xob tuaj yeem txhim kho kev nyab xeeb ntxiv.
Dab tsi yog qhov efficiency ntawm qhuav-hom transformer?
Kev ua tau zoo ntawm lub tshuab ziab khaub ncaws tuaj yeem sib txawv nyob ntawm ntau yam, suav nrog nws cov qauv tsim, qhov loj me, qhov chaw thauj khoom, thiab cov chaw tsim khoom tshwj xeeb. Feem ntau, qhuav-hom transformers paub tias muaj qib high efficiency.
Qhuav hom transformers feem ntau pom qhov ua tau zoo ntawm 95 feem pua rau 99 feem pua. Qhov no txhais tau tias lawv tuaj yeem hloov hluav taws xob hluav taws xob nrog kev poob qis. Qhov kev ua tau zoo ntawm lub transformer yog txhais raws li qhov piv ntawm cov zis hluav taws xob rau lub zog input, qhia raws li feem pua. Piv txwv li, transformer nrog 98 feem pua kev ua tau zoo txhais tau hais tias 98 feem pua ntawm cov khoom siv hluav taws xob tau ua tiav rau hauv cov khoom siv hluav taws xob muaj txiaj ntsig, thaum qhov seem 2 feem pua tau poob raws li cov cua sov.
Cov qib kev ua tau zoo kuj tuaj yeem sib txawv ntawm qhov sib txawv ntawm kev thauj khoom. Transformers zoo li muaj qhov ua tau zoo ntawm lossis nyob ze lawv cov khoom ntsuas. Raws li cov load txo qis lossis nce siab tshaj qhov muaj peev xwm, kev ua tau zoo yuav txo qis me ntsis vim qhov kev poob ntxiv cuam tshuam nrog tsis muaj kev thauj khoom lossis overload.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum xaiv los yog qhia txog lub tshuab ziab khaub ncaws qhuav, kev ua tau zoo yog ib qho ntawm cov yam ntxwv uas yuav tsum tau xav txog, tab sis lwm yam xws li kev tswj hluav taws xob, impedance, thiab kub nce yuav tsum tau coj mus rau hauv tus account kom ntseeg tau tias lub transformer ua tau raws li qhov tshwj xeeb. cov cai ntawm daim ntawv thov.
Qhov kev khiav hauj lwm kub ntawm ib tug qhuav transformer yog dab tsi?
Kev khiav hauj lwm kub ntawm ib tug qhuav-hom transformer feem ntau nyob ntawm nws cov rwb thaiv tsev chav kawm ntawv, uas txiav txim siab qhov siab tshaj plaws tso cai kub nce siab tshaj qhov kub ntawm ambient. Cov chav kawm rwb thaiv tsev yog tsim los ntawm tsab ntawv code, xws li F, H, lossis K.
Nov yog qee cov chav kawm rwb thaiv tsev thiab lawv cov kev cuam tshuam qhov siab tshaj plaws tso cai kom sov siab:
1.Class F (155 degree): Transformers nrog Class F rwb thaiv tsev yog tsim los kom muaj qhov siab tshaj plaws qhov kub thiab txias ntawm 155 degree siab tshaj qhov kub thiab txias. Qhov no txhais tau hais tias qhov kub tshaj plaws ntawm lub transformer windings yuav tsum tsis txhob tshaj qhov kub ntawm no.
2.Class H (180 degree): Transformers nrog Class H rwb thaiv tsev muaj qhov siab tshaj plaws qhov kub thiab txias ntawm 180 degree siab tshaj qhov ntsuas kub. Lawv tuaj yeem tswj tau qhov kub siab dua piv rau Class F transformers.
3.Class K (220 degree): Transformers nrog Class K rwb thaiv tsev muaj qhov siab tshaj plaws qhov siab tshaj plaws qhov kub thiab txias ntawm 220 degree siab tshaj qhov kub thiab txias. Lawv tau tsim los ua haujlwm ntawm qhov kub thiab txias.
Nws yog ib qho tsim nyog sau cia tias qhov kub thiab txias yuav tsum tau txiav txim siab thaum txiav txim siab kev ua haujlwm kub ntawm lub tshuab ziab khaub ncaws qhuav. Lub ambient kub yog qhov kub ntawm ib puag ncig ib puag ncig uas lub transformer yog ntsia. Lub transformer qhov kev khiav hauj lwm kub yuav tsum nyob rau hauv cov kev txwv uas tau teev tseg los ntawm nws cov rwb thaiv tsev chav kawm ntawv nyob rau hauv lub muab ambient kub tej yam kev mob.
Los ntawm kev saib xyuas thiab tswj kev ua haujlwm kub, nws muaj peev xwm ua kom lub tshuab hloov pauv ua haujlwm zoo thiab nyob twj ywm hauv nws qhov kev txwv kub, yog li ua kom nws lub neej ntev thiab kev ua tau zoo.
Dab tsi yog qhov txawv ntawm lub tshuab ziab khaub ncaws qhuav thiab cov kua hloov pauv?
Qhov sib txawv tseem ceeb ntawm lub tshuab ziab khaub ncaws qhuav thiab cov kua hloov pauv yog nyob rau hauv txoj kev txias thiab rwb thaiv tsev siv hauv txhua hom.
1.Cooling Method:
● Qhuav Transformer: Qhuav hom transformers siv cua ua qhov nruab nrab cua txias. Lawv cia siab rau tej yam ntuj tso convection los yog yuam cua mus rau dissipate tshav kub generated thaum lub sij hawm ua hauj lwm. Lawv tsis tas yuav muaj cov kua dej txias xws li roj lossis kua dielectric.
● Liquid Transformer: Liquid transformers, tseem hu ua oil-filled transformers, siv cov kua coolant, feem ntau cov ntxhia roj los yog tsawg dua, lwm cov kua dielectric xws li silicone los yog hluavtaws esters. Cov kua coolant circulates los ntawm transformer lub core thiab windings, nqa tawm cua sov thiab muab txias.
2. Txoj kev rwb thaiv tsev:
● Dry Transformer: Cov tshuab ziab khaub ncaws qhuav siv cov khoom siv rwb thaiv tsev ua los ntawm cov ntaub ntawv zoo li epoxy resin lossis cam khwb cia resin. Cov khoom siv rwb thaiv tsev no muab hluav taws xob rwb thaiv tsev thiab txhawb cov windings, thaum tseem ua rau kom sov dissipation.
● Liquid Transformer: Liquid transformers siv roj los yog lwm yam dielectric kua ua ob qho tib si coolant thiab rwb thaiv tsev nruab nrab. Cov roj ib puag ncig thiab immerses lub windings, muab ob qho tib si hluav taws xob rwb thaiv tsev thiab txias txias. Cov kua dielectric txhim khu kev ua haujlwm ntawm rwb thaiv tsev thiab pab tswj cov cua sov tsim thaum lub sijhawm ua haujlwm.
Nyob rau hauv cov ntsiab lus, qhuav transformers siv cua txias thiab cov khoom rwb thaiv tsev cov ntaub ntawv, thaum cov kua transformers siv roj los yog lwm yam dielectric kua rau ob qho tib si txias thiab rwb thaiv tsev. Cov tshuab ziab khaub ncaws qhuav feem ntau yog siv rau hauv cov ntawv thov uas muaj kev nyab xeeb hluav taws, kev txhawj xeeb ntawm ib puag ncig, lossis kev saib xyuas kev nkag mus tau yog qhov tseem ceeb. Liquid transformers, ntawm qhov tod tes, feem ntau yog ua haujlwm nyob rau hauv ntau yam kev faib hluav taws xob thiab kev siv hluav taws xob siab uas yuav tsum muaj qhov hluav taws xob ntau dua, muaj peev xwm ntau dua, thiab kev ua kom txias tau zoo.
