Transformer rau Metro Chaw Nres Tsheb: Kev Xaiv, Daim Ntawv Thov thiab Kev Qhia Tsim
Lub chaw nres tsheb metro nyob ntawm lub zog ruaj khov thiab txhim khu kev qha. Teeb pom kev zoo, escalators, elevator, qhov cua, teeb liab, kev sib txuas lus, kev tiv thaiv hluav taws, cov khoom siv pib - tag nrho cov tshuab no xav tau hluav taws xob kom lub chaw nres tsheb khiav zoo thiab du.
Uas ua rautransformer rau metro chaw nres tshebsiv ib feem tseem ceeb ntawm tag nrho cov hluav taws xob system.
Xaiv lub transformer rau ib qhov project metro tsis yog ib qho teeb meem ntawm kev saib qhov ntsuas kVA. Qhov chaw teeb tsa, qib voltage, hom transformer, txoj kev txias, kev sib haum xeeb, kev xav tau suab nrov, muaj qhov chaw, thiab kev npaj rov ua dua txhua yam yuav tsum tau xav txog. Hauv cov chaw nres tsheb hauv av tshwj xeeb, txawm tias cov ntsiab lus me me tuaj yeem ua rau muaj qhov sib txawv loj.
Dab tsi yog Transformer rau Metro Chaw Nres Tsheb?
A transformer rau metro chaw nres tshebFeem ntau yog siv los hloov qhov nruab nrab- lub zog hluav taws xob los ntawm kev siv hluav taws xob lossis kev tsheb ciav hlau xa mus rau hauv qhov hluav taws xob qis uas tuaj yeem siv los ntawm cov khoom siv hauv chaw nres tsheb.
Nyob ntawm lub hauv paus system thiab cov qauv hluav taws xob hauv zos, qhov hluav taws xob tuaj yeem yog 10 kV, 11 kV, 20 kV, lossis lwm qhov nruab nrab -voltage theem. Lub transformer ces muab qhov chaw nres tsheb qis -voltage tis network, feem ntau nyob ib ncig ntawm 400 V lossis 415 V.
Tau kawg, qhov tseeb voltage nyob ntawm qhov project. Tsis muaj universal metro qauv siv rau txhua lub teb chaws.
Lub chaw nres tsheb transformer tuaj yeem muab ntau yam khoom siv hluav taws xob:
| Chaw nres tsheb Metro Load | Cov Khoom Siv Hluav Taws Xob |
|---|---|
| Teeb pom kev zoo | Platform, concourse, qhov thiab teeb pom kev kub ceev |
| Cov neeg caij tsheb | Escalators, elevators, cov khoom siv pib |
| HVAC | Cua- cua txias, cua tshuab thiab tshem tawm cov pa luam yeeb |
| Tiv thaiv hluav taws | Cov twj tua hluav taws, lub tswb thiab cov tshuab xwm txheej ceev |
| Kev sib txuas lus | CCTV, chaw nyob pej xeem thiab kev sib txuas lus |
| Teeb liab | Railway signaling thiab tswj cov cuab yeej |
| Dej Systems | Cov kav dej, dej thiab cov twj tso kua mis |
| Kev Pabcuam Chaw Nres Tsheb | Kev cob qhia, chaw ua haujlwm thiab cov cuab yeej pabcuam |
Covtraction zog systemfeem ntau yog tsim los nyias. Cov khoom siv traction muaj nws tus kheej qhov voltage, kev tiv thaiv thiab cov yam ntxwv ntawm lub zog, yog li nws yuav tsum tsis txhob tsuas yog kho raws li lwm qhov chaw nres tsheb thauj khoom.
Qhuav -Hom Transformer rau Metro Chaw Nres Tsheb
Rau kev siv hauv tsev metro, tshwj xeeb tshaj yog hauv av
chav hluav taws xob,qhuav -hom transformersfeem ntau yog ib qho kev xaiv tswv yim.
Ib qho txiaj ntsig pom tseeb yog tias lawv tsis siv cov dej rwb thaiv tsev. Qhov ntawd tuaj yeem ua rau lawv yooj yim rau kev sib koom ua ke rau hauv cov chaw pej xeem uas muaj kev tiv thaiv hluav taws thiab kev xav txog ib puag ncig yog qhov tseem ceeb.
Cast resin transformersfeem ntau xav txog rau hom kev teeb tsa no. Lawv cov txheej txheem rwb thaiv tsev zoo muab kev tiv thaiv zoo rau cov dej noo thiab kev sib kis thaum lub tshuab hloov pauv tau tsim, tsim thiab teeb tsa.
Raws li qhov xav tau ntawm kev thauj khoom thiab cua txias, qhuav -hom transformer tuaj yeem siv tau yuam- cua txias. IbAN/AF qhuav -hom transformer, piv txwv li, tuaj yeem ua haujlwm nrog cov cua txias hauv ib puag ncig thiab siv cua txias thaum xav tau ntxiv.
Txawm li cas los xij, qhuav - hom tsis txhais tau tias kev saib xyuas - dawb. Cov kab cua txias, kev sib txuas hluav taws xob, qhov chaw rwb thaiv tsev thiab qhov cua yuav tsum tau kuaj xyuas tas li, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hauv av.
Roj -Yam Transformer rau Metro Fais Fab Systems
Ibroj-immersed transformerkuj tuaj yeem tsim nyog rau cov tshuab hluav taws xob metro, tshwj xeeb tshaj yog nyob rau sab nraum zoov substations lossis lub hom phiaj -tsim chav tsev transformer.
Transformer roj muab ob qho tib si rwb thaiv tsev thiab cua sov hloov, uas ua rau cov roj-immersed designs zoo haum rau siab - muaj peev xwm siv.
Kev ntes yog tias lub installation yuav tsum tau tsim raws li. Kev tiv thaiv hluav taws, roj ntim, qhov cua, nkag mus thiab ib puag ncig yuav tsum tau muab coj los rau hauv tus account.
Yog li, thaum nws los txog rau kev xaiv ntawm cov roj-immersed transformer thiab qhuav-hom transformer, tsis muaj ib tug -loj- haum- teb. Qhov kev txiav txim siab feem ntau yog nqes mus rau qhov chaw teeb tsa, lub peev xwm transformer, qhov project specifications, kev ruaj ntseg yuav tsum tau thiab tag nrho cov system tsim.
Ntsiab Specifications rau Transformer rau Metro Chaw nres tsheb
Thaum engineers qhia atransformer rau metro chaw nres tshebdaim ntawv thov, lub peev xwm ntsuas tsuas yog ib feem ntawm daim duab.
| Specification | Vim Li Cas Nws Tseem Ceeb |
| Rated zog | Txiav txim siab npaum li cas hluav taws xob load lub transformer muab tau |
| Thawj Voltage | Yuav tsum phim cov khoom nruab nrab -voltage system |
| Secondary Voltage | Yuav tsum phim qhov chaw nres tsheb qis -voltage faib |
| Ntau zaus | Feem ntau 50 Hz lossis 60 Hz nyob ntawm qhov project |
| Hom Transformer | Qhuav- hom lossis roj- raus raws li qhov yuav tsum tau ua |
| Txoj kev txias | Txiav txim siab ua haujlwm thermal thiab muaj peev xwm |
| Impedance | Ib qho tseem ceeb rau luv luv -circuit xam thiab voltage tswj |
| Rwb thaiv tsev Level | Yuav tsum muaj kev sib koom ua ke ntawm qhov system voltage thiab rwb thaiv tsev |
| Kub nce | Muaj feem xyuam rau kev khiav hauj lwm kev ua tau zoo thiab transformer lub neej |
| Lub suab nrov | Ib qho tseem ceeb rau cov neeg caij tsheb thiab kev teeb tsa hauv av |
| Harmonic Performance | Tseem ceeb rau cov chaw nres tsheb uas muaj ntau yam khoom siv hluav taws xob |
| Npog | Pab tiv thaiv lub transformer los ntawm ib puag ncig tej yam kev mob |
| Luv -Circuit Strength | Txhawb kev ua haujlwm txhim khu kev qha thaum lub sijhawm ua haujlwm tsis raug |
Cov specifications no kuj yuav tsum tau ua hauj lwm ua ke. Lub transformer yuav tsum tau ua tib zoo koom tes nrogMV switchgear, LV switchgear, cables, tiv thaiv pab kiag li lawm, generators, UPS systems thiab lwm yam khoom siv.
Yuav Ua Li Cas Loj Transformer rau Metro Chaw nres tsheb
Transformer sizing pib nrog qhov chaw nres tsheb qhov kev xav tau siab tshaj plaws. Tsuas yog ntxiv txhua qhov kev sib txuas ua ke tuaj yeem ua rau lub tshuab hluav taws xob loj tsis tsim nyog, thaum qhov loj me ze rau qhov kev xam cov load tawm me me rau qhov tiag - ntiaj teb kev ua haujlwm.
Ib qho yooj yim xam yog:
Transformer Capacity (kVA)=Qhov siab tshaj plaws (kW) ÷ Fais Fab
Piv txwv li, xav tias qhov chaw nres tsheb muaj qhov xav tau siab tshaj plaws ntawm 1,800 kW thiab qhov xav tau lub zog ntawm 0.90:
1,800 ÷ 0.90=2,000 kVA
Qhov ntawd muab 2,000 kVA transformer raws li qhov pib ua tau.
Tab sis cov phiaj xwm tiag tiag tsis tshua muaj qhov yooj yim. Cov kws tsim khoom kuj tseem yuav tsum suav rau yav tom ntej kev nthuav dav, lub cev muaj zog pib tam sim no, qhov kub thiab txias, kev sib haum xeeb sib txawv, cov xwm txheej dhau los, rov ua dua thiab qhov yuav tsum tau ua haujlwm.
Rau cov chaw nres tsheb loj, ntau lub tshuab hloov pauv yuav ua rau muaj kev nkag siab ntau dua li ib chav tsev loj heev. Nws nyob ntawm seb qhov chaw nres tsheb tau muab faib li cas thiab ntau npaum li cas redundancy qhov project yuav tsum tau.
Harmonics thiab Transformer Xaiv
Niaj hnub no cov chaw nres tsheb metro muaj ntau yam hluav taws xob thiab hluav taws xob-electronic
khoom siv. Kev sib txawv - zaus tsav, LED teeb pom kev zoo, UPS systems, elevators, escalators thiab cov ntaub ntawv xov xwm digital tuaj yeem ua rau muaj kev sib haum xeeb rau cov hluav taws xob network.
Cov qib siab sib haum xeeb tuaj yeem ua rau cov cua sov hloov pauv thiab poob. Nyob rau tib lub sijhawm, qhov ntawd tuaj yeem cuam tshuam kev ua haujlwm ntawm kev ua haujlwm thiab lub neej transformer.
Vim li ntawd, kev tsom xam harmonic yog tsim nyog xav txog thaum xaiv ibtransformer rau metro chaw nres tshebdaim ntawv thov.
Nyob ntawm qhov project tiag tiag, engineers yuav qhia tau lub transformer nrog ib tug tsim thermal tsim, K-factor capability(Nyem rau kawm txog K-chav transformers), harmonic mitigation yam ntxwv (Nyem rau kawm ntxiv txog Harmonic Mitigating Transformers) lossis lwm yam kev ntsuas npaj los tswj cov khoom tsis muaj kab ntsig zoo dua.
Qhov no dhau los ua qhov tseem ceeb tshwj xeeb hauv cov chaw nres tsheb loj nrog HVAC cov tshuab thiab cov khoom siv hluav taws xob ntau.
Hloov pauv Kev rov ua dua hauv cov chaw nres tsheb metro
Kev muaj hluav taws xob muaj teeb meem ntau hauv metro infrastructure, yog li redundancy feem ntau ua rau hauv qhov chaw nres tsheb tsim hluav taws xob.
Ib qho kev npaj sivob los yog ntau tshaj transformerslos muab cov seem sib txawv ntawm qhov qis -voltage distribution system. Nyob ntawm tus qauv tsim, lub tsheb thauj mus los lossis kev hloov pauv tsis siv neeg tuaj yeem tso cai xaiv cov khoom thauj khoom los ntawm lwm lub tshuab hloov pauv yog tias ib chav tsis muaj. Qhov kev teeb tsa tiag tiag nyob ntawm qhov kev xav tau ntawm kev ntseeg siab.
Cov kev pabcuam tseem ceeb xws li teeb pom kev kub ntxhov, kev tiv thaiv hluav taws, kev tshem tawm cov pa luam yeeb, kev sib txuas lus thiab lwm yam kev nyab xeeb-txog cov kab ke kuj tseem yuav muaj cov thaub qab ntxiv los ntawm cov tshuab hluav taws xob, UPS systems lossis cov khoom siv hluav taws xob tshwj xeeb.
Nyob rau hauv lwm yam lus, lub transformer yuav tsum tau saib raws li ib feem ntawm qhov chaw nres tsheb lub zog ua tiav architecture, tsis yog ib tug standalone khoom.
Hloov pauv Kev teeb tsa hauv cov chaw nres tsheb hauv av
Cov chaw nres tsheb hauv av coj lawv cov teeb meem nyuaj.
Cov chav hluav taws xob tuaj yeem nruj, qhov cua tuaj yeem raug txwv, thiab noo noo lossis condensation tuaj yeem ua rau muaj kev txhawj xeeb. Nyob rau tib lub sijhawm, transformers thiab switchgear tsim cov cua sov uas yuav tsum tau muab tshem tawm kom zoo.
Rau qhov qhuav -hom transformer, qhov cua yog qhov tseem ceeb tshwj xeeb vim tias lub tshuab hloov pauv nyob ntawm huab cua kom nqa cua sov mus. Lub transformer uas raug ntsuas nyob rau hauv daim ntawv tseem tuaj yeem muaj teeb meem yog tias chav tsev nws tus kheej tsis zoo.
Kev nkag mus rau lub cev tseem ceeb heev.
Ua ntej chav tsev transformer tiav lawm, engineers yuav tsum saib cov kev thauj mus los, qhov ntev ntawm lub qhov rooj, nqa kev npaj, tu clearances thiab hloov mus rau yav tom ntej. Nws yog qhov yooj yim dua los daws cov teeb meem no thaum lub sij hawm tsim dua li tom qab cov cuab yeej tau tuaj txog ntawm qhov chaw.
Qhov no yog vim li cas kev sib koom ua ntej ntawm cov chaw tsim khoom siv hluav taws xob, tus kws pab tswv yim hluav taws xob, EPC tus neeg cog lus thiab pab pawg neeg tsim vaj tsev yog qhov muaj txiaj ntsig zoo.
Kev nyab xeeb Yuav tsum muaj rau Metro Transformer Systems
Kev nyab xeeb yog qhov tseem ceeb thaum xaiv lub tshuab hluav taws xob rau lub chaw nres tsheb metro.
Lub transformer yuav tsum tau koom tes nrog lub chaw nres tsheb tiv thaiv thiab grounding systems. Overcurrent thiab luv luv- tiv thaiv Circuit Court, ntsuas kub, tiv thaiv surge, grounding thiab thaum muaj xwm ceev cais tag nrho ib feem ntawm tag nrho cov hluav taws xob kev ruaj ntseg zoo.
Qhuav- hom transformers kuj xav tau kev tiv thaiv tsim nyog tiv thaiv overheating thiab kev ua haujlwm tsis zoo.
Kev tsim kho zaum kawg yuav tsum ua raws li IEC, IEEE, lub teb chaws hluav taws xob thiab kev tsheb ciav hlau, nrog rau cov kev qhia tshwj xeeb tshaj tawm rau tus kheej txoj haujlwm metro.
Yawei Transformer rau Metro Station Projects
JiangsuYog Transformermanufactures fais fab thiab faib transformers rau industrial thiab infrastructure daim ntaub ntawv, nrog rau tej yaam num uas xav tau hluav taws xob thiab installation yuav tsum tau.
Rau ibtransformer rau metro chaw nres tsheb, Yawei tuaj yeem tsim cov kev daws teeb meem nyob ib puag ncig qhov project- cov kev cai tshwj xeeb xws li cov peev txheej ntsuas, thawj thiab theem nrab qhov hluav taws xob, qib rwb thaiv tsev, txheej txheem cua txias, kaw, teeb tsa thiab cov qauv siv tau.
Qhuav- hom kev daws teeb meem transformer tuaj yeem txiav txim siab rau chav hluav taws xob sab hauv tsev thiab hauv av, thaum cov roj- cov qauv tsim tuaj yeem siv rau cov chaw tsim khoom sab nraum zoov thiab cov khoom siv hluav taws xob sib koom ua ke.
Tus tsim transformer tseem tuaj yeem coj mus rau hauv tus account qhov chaw nres tsheb qhov profile, kev sib haum xeeb ib puag ncig, kev rov ua dua tshiab thiab muaj qhov chaw teeb tsa.
Rau EPC cov neeg cog lus, cov kws pab tswv yim, cov tswv lag luam metro thiab cov neeg tsim kho vaj tse, sib tham txog cov kev xav tau no nrog cov chaw tsim khoom siv hluav taws xob thaum ntxov hauv txoj haujlwm tuaj yeem pab kom tsis txhob dhau - feeb kev hloov pauv. Nws kuj ua rau nws yooj yim dua kom paub tseeb tias qhov kawg transformer tiag tiag haum rau qhov project, ob qho tib si hluav taws xob thiab lub cev.
Xaus
A transformer rau metro chaw nres tshebdaim ntawv thov ua ntau ntau tshaj li qib voltage nce lossis nqis. Nws txhawb ntau lub tshuab ua kom lub chaw nres tsheb ua haujlwm, xis nyob thiab nyab xeeb, los ntawm teeb pom kev zoo thiab HVAC mus rau kev sib txuas lus, cov neeg caij tsheb thiab cov khoom siv thaum muaj xwm ceev.
Qhuav-hom transformers tuaj yeem ua tau zoo rau ntau daim ntawv thov sab hauv tsev thiab hauv av, thaum cov roj-immersed transformers tseem yog qhov kev xaiv tsim nyog rau qhov siab - muaj peev xwm lossis kev teeb tsa sab nraum zoov.
Txoj cai transformer nyob ntawm qhov chaw nres tsheb voltage, load profile, muaj peev xwm, redundancy lub tswv yim, harmonic ib puag ncig, installation tej yam kev mob thiab cov qauv siv.
Rau cov phiaj xwm metro, kev xaiv transformer yuav tsum raug suav tias yog ib feem ntawm kev ua tiav hluav taws xob txij thaum pib. Thaum cov kev qhia tshwj xeeb, kev teeb tsa thiab kev tiv thaiv zoo sib koom ua ke zoo, lub tshuab hloov pauv tuaj yeem muab lub zog siv tau thoob plaws hauv qhov chaw nres tsheb lub neej.
Q: Ntev npaum li cas koj tuaj yeem xa cov transformer?
A: Nws nyob ntawm qhov ntau thiab muaj peev xwm ntawm transformer, feem ntau nyob rau hauv ib lub hlis txij li hnub kos duab lees paub los ntawm cov neeg yuav khoom.
Q: Ntev npaum li cas koj tuaj yeem muab qhov kev lees paub zoo?
A: 24 lub hlis txij li hnub transformer ua haujlwm.
Q: Koj txais txoj kev them nyiaj dab tsi?
A: T / T (hloov pauv) nyiam, L / C ob leeg txais.
