Pad-Mounted Transformer: Txheej txheem cej luam, Hom, Specs, thiab Cov Lus Qhia Xaiv
Yog tias koj tau taug kev los ntawm ib cheeb tsam tshiab lossis taug kev dhau lub tsev lag luam thiab pom lub thawv ntsuab ntsuab zaum ntawm lub pob zeb ua vaj tse -zoo siab, koj tau tso lub qhov muag ntawmpad mounted transformer. Lawv nyob txhua qhov chaw thaum koj pib pom lawv, thiab ncaj ncees, lawv yog ib qho tseem ceeb ntawm kev faib hluav taws xob niaj hnub.
Yog li dab tsi yog qhov cuam tshuam nrog cov khoom no? Yeej, lawv yog av-cov kwv tij txheeb ze ntawm cov cylindrical transformers uas koj pom perched ntawm cov khoom siv hluav taws xob. Es tsis txhob dai saum huab cua, lawv zaum ruaj ntseg ntawm ib lub pob zeb hauv ib lub thawv kaw, huab cua tsis zoo. Lawv txoj hauj lwm tag nrho yog coj nruab nrab- hluav taws xob hluav taws xob los ntawm kab hluav taws xob thiab tsoo nws mus rau qhov hluav taws xob uas tsev, lag luam, thiab cov chaw tsim khoom siv tau tiag tiag.
Rau cov khoom siv hluav taws xob, cov neeg cog lus, thiab cov tswv tsev, xaiv qhov zoo tsis yog taug kev hauv lub tiaj ua si. Koj tau txais qhov ntsuas qhov ntsuas hluav taws xob, lub peev xwm kVA, kev teeb tsa pub noj, kev tiv thaiv kev tiv thaiv, kev teeb tsa mob taub hau, thiab ib pawg ntawm cov qauv los daws. Mess nws, thiab koj tab tom thov teeb meem hauv kab.
Dab tsi yog ib lub ncoo -Mounted Transformer?
Xav tias nws yog tus neeg nruab nrab ntawm cov khoom siv hluav taws xob faib hluav taws xob thiab koj lub tsev hluav taws xob. Lub hwj chim ntws los ntawm cov kab hluav taws xob hauv av ntawm qhov nruab nrab voltage, lub transformer ua nws cov electromagnetic induction magic, thiab lub zog ntws tawm ntawm qhov zoo, muaj kev nyab xeeb qis dua.
Feem ntau ntawm cov chav no tau ntim cov kua- feem ntauntxhia rojlos yogbiodegradable ester kua-uas ua haujlwm ob qho tib si txias thiab rwb thaiv tsev. Lub tank thiab lub txee yog tsim los rau luag los nag, daus, kub kub, thiab qee lub sijhawm ntawm lub tsheb thauj khoom, thaum khaws cov ntiv tes xav kom deb ntawm txhua yam txaus ntshai.
Vim li cas faus txhua yam es tsis txhob muab hlua khi rau ntawm tus ncej? Nov yog luv luv version:
Tsis muaj dab tuag ncej thiab xov hlau ua rau pom
Tsawg yooj yim rau cua daj cua dub thiab cov ceg poob
Muaj kev nyab xeeb rau cov neeg taug kev ncig
Muaj kev ywj pheej los tso lawv qhov chaw koj xav tau
Ua hauj lwm zoo kawg nkaus nrog niaj hnub underground tes hauj lwm
Tej yam no tshwm sim nyob qhov twg?
Zoo nkauj heev nyob qhov twg underground hluav taws xob faib ua rau kev nkag siab.
Chaw nyob thiabKev siv hluav taws xob
Cov khoom siv hluav taws xob plam cov no rau hauv cov subdivisions tshiab, cov tsev apartment, thiab kev tsim vaj tsev nyob txhua lub sijhawm. Lawv yog qhov kawg nres ntawm qhov nruab nrab - cov kab hluav taws xob thiab cov kev pabcuam txuas rau txhua lub tsev lossis chav tsev.
Cov tsev lag luam thiab tsev kawm ntawv
Chaw ua haujlwm chaw ua si, khw muag khoom, tsev kho mob, tsev kawm qib siab-txhua qhov chaw koj tsis xav tau lub zog hluav taws xob cuam tshuam cov toj roob hauv pes. Cov tsev kawm ntawv loj qee zaum teeb tsa ntau chav yog li yog tias ib qho poob mus, tus so ua kom cov khoom khiav.
Cov Khoom Siv Muaj
Factories, mines, processing plants -cov no feem ntau xav tau cov chav nyob nrog
kev tiv thaiv thiab kev saib xyuas zoo dua. Heavy loads xav tau hnyav- lub luag haujlwm iav.
Data Centersthiab Critical Infrastructure
Kev ntseeg tsis yog qhov tseem ceeb ntawm no -nws yog txhua yam. Cov chaw no mus rau siab -cov transformers ua tau zoo nrog kev sib haum xeeb lim dej, rov ua dua, thiab tiag - lub sijhawm saib xyuas hauv. Thiab lawv ib txwm xav txog kev nthuav dav yav tom ntej.
Lub zog tauj dua tshiabthiab EV Charging
Hnub ci ua liaj ua teb, roj teeb cia tshuab, thiab EV chaw nres tsheb them tag nrho cia siab raupad mounted transformerstxhawm rau txuas cov khoom siv hluav taws xob sib faib rau hauv daim phiaj.
Tej yam no tiag tiag ua haujlwm li cas?
Lub physics tsis yog kev tshawb fawb txog foob pob hluav taws- nws yog tib yam electromagnetic induction uas tau ua txoj haujlwm ntau tshaj ib puas xyoo. AC tam sim no hits thawj winding, tsim ib magnetic teb, uas induces voltage nyob rau hauv lub thib ob winding, thiab ib yam li ntawd, koj twb tau transformed voltage.
Nov yog dab tsi nyob hauv lub txee:
| Cheebtsam | Nws Ua Dab Tsi |
|---|---|
| Transformer tub ntxhais | Muab txoj kev sib nqus rau kev hloov hluav taws xob |
| Thawj winding | Siv nyob rau hauv nruab nrab -voltage input |
| Secondary winding | Muab qhov txo -voltage output |
| Insulating kua | Txias cov khoom thiab muab hluav taws xob rwb thaiv tsev |
| Tank enclosure | Tiv thaiv txhua yam ntawm huab cua thiab cuam tshuam |
| Bushings | Cov ntsiab lus txuas rau cables |
| fuses thiab keyboards | Kev tiv thaiv thiab kev sib cais thaum koj xav tau |
Cov units feem ntau sivONANcua txias-Oil Natural, Cua Natural. Txhais lus: cov roj circulates ntawm nws tus kheej, thiab cua sov khiav los ntawm lub tank phab ntsa. Yooj yim, txhim khu kev qha, tsis muaj qhov txav mus los tawg.
Cov hom tseem ceeb koj yuav khiav mus rau
Tib-Phase vs. Peb-Phase
Qhov no yooj yim heev.Ib theem -units yog muaj nyob rau hauvthaj chaw nyob- qauv yooj yim, muaj peev xwm qis dua.Peb -theemunits tshwm nyob rau hauvkev lag luamthiabkev teeb tsa kev lag luamqhov twg qhov sib npaug peb -theem fais fab tsis yog-negotiable.
| Hom | Tej kev siv | Qhov zoo |
|---|---|---|
| Ib theem - | Cov chaw nyob, cov khoom lag luam me me | Yooj yim tsim, tus nqi qis rau cov khoom me me |
| Peb -theem | Cov nroj tsuag muaj kev lag luam, cov tsev lag luam, cov ntaub ntawv chaw | Muaj peev xwm ntau dua, ua tau zoo peb -theem faib |
Radial Feed vs Loop Feed
Qhov no yog hais txog yuav ua li cas lub hwj chim tau txais mus rau lub transformer.
Radial Feed- Lub zog los ntawmib qho kev taw qhia nkaus xwb. pheej yig dua thiab yooj yim dua, tab sis yog tias ib qhov chaw craps tawm, koj nyob hauv qhov tsaus ntuj. Zoo rau cov khoom txheem qhov twg downtime tsis yog qhov kawg ntawm lub ntiaj teb no.
Loop Feed- Lub transformer zaum hauvib voj, yog li lub zog tuaj yeem los ntawm ob qho tib si. Yog tias ib txoj hauv kev tsis ua tiav, lwm qhov ua rau cov khoom tsis zoo. Tus nqi ntau dua, tab sis tsim nyog txhua lub nyiaj rautsev kho mob, cov chaw zov me nyuam, thiab lwm yamcov haujlwm tseem ceeb.
Tuag-Front vs. Live-Pem hauv ntej
Tuag- pem hauv ntej- Tsis muaj cov khoom siv hluav taws xob nthuav tawm ntawm sab kev ua haujlwm. Txhua yam yog enclosed thiab insulated. Txoj kev nyab xeeb dua rau cov neeg ua haujlwm, thiab nws yog qhov khoom siv feem ntau xav tau hnub no.
Nyob - pem hauv ntej- Qee cov khoom muaj zog tau nthuav tawm. Koj tseem yuav pom cov no hauv kev teeb tsa qub, tab sis tuag - pem hauv ntej yog tus yeej meej rau cov haujlwm tshiab.
Specs Koj Yuav Tsum Paub
Ntawm no yog saib ceev ntawm cov specs raug. Cov lej tiag nyob ntawm qhov kev siv hluav taws xob thiab qhov yuav tsum tau ua, yog li tsis txhob coj cov no los ua txoj moo zoo.
| Specification | Hom ntau yam / xaiv |
|---|---|
| Theem | Tib-theem / Peb-phase |
| kVA ntsuas | 25 kVA rau 5000 kVA + (nyob ntawm txoj haujlwm) |
| Thawj qhov voltage | 4.16 kV, 7.2 kV, 12.47 kV, 13.2 kV, 13.8 kV, 24.9 kV, 34.5 kV |
| Secondary voltage | 120/240V, 208Y/120V, 480Y/277V, 600V |
| Ntau zaus | 50 Hz / 60 Hz |
| chav kawm txias | ONAN |
| Rwb thaiv tsev kua | Mineral roj los yog biodegradable ester kua |
| Impedance | Feem ntau 4% -8% nyob ntawm qhov ntsuas |
| BIL kev ntaus nqi | Raws li qhov xav tau ntawm chav kawm voltage |
| Pub hom | Radial feed / Loop feed |
| Hom pem hauv ntej | Tuag- pem hauv ntej / Live- pem hauv ntej |
| Cov qauv | IEEE C57 series, ANSI cov cai |
Fancy Extras thiab Optional Add-Ons
Koj tuaj yeem dag cov khoom no nrog txhua yam khoom zoo yog tias koj qhov project hu rau nws.
Kev tiv thaiv iav:
Tam sim no - txwv fuses
ELSP (lub luj tshib loadbreak surge protectors)
Loadbreak keyboards
Kev rho tawm keyboards
Surge arresters
Tag nrho cov khoom no ua rau lub transformer muaj kev ruaj ntseg ntawm overloads, luv circuits, thiab voltage spikes.
Saib xyuas gadgets:
Roj kub ntsuas
Kev ntsuas siab / nqus tsev vacuum
Qhov taw qhia yuam kev
Tej thaj chaw deb saib xyuas systems
SCADA kev sib txuas lus interfaces
Rau cov ntawv thov tseem ceeb, paub txog dab tsi tshwm sim hauv lub tshuab hloov pauv hauv lub sijhawm tiag tiag yog qhov loj heev.
Kev tiv thaiv corrosion:
Corrosion-cov tshuaj tiv thaiv
Marine- qib tiv thaiv
Yog tias koj nyob ze ntawm ntug dej hiav txwv lossis hauv qhov chaw hnyav, cov no tuaj yeem cawm koj lub ntiaj teb kev mob tom qab.
Cov Qauv thiab Kev Ntsuas -Vim Cov Khoom Zoo
Transformers zoo ua tau raws li cov qauv kev lees paub. Cov loj:
| Txuj | Dab tsi Nws npog |
|---|---|
| IEEE C57.12.34 | Qhov yuav tsum tau muaj rau ncoo -mounted faib transformers |
| IEEE C57.12.00 Nws | Cov kev cai dav dav rau cov kua -immersed transformers |
| IEEE C57.12.90 | Cov txheej txheem kuaj transformer |
| ANSI cov qauv | General hluav taws xob cov khoom yuav tsum tau |
| Kev siv hluav taws xob specifications | Qhov project- cov cai tshwj xeeb |
Ua ntej lub nkoj hloov pauv, cov neeg tsim khoom tau muab tso rau hauv nws cov paces nrog cov kev ntsuam xyuas niaj hnub:
Winding kuj
Kev ntsuas ntsuas
Rwb thaiv tsev tsis kam
Tsis muaj - load thiab load poob ntsuas
Kev ntsuas impedance
Kev kuaj dielectric
Feem ntau koj yuav tau txaisHoobkas kuaj ntawv ceeb toomraws li ib feem ntawm cov ntaub ntawv.
Installation: Yam Koj Yuav Tsum Tau Paub
Kev txhim kho ib qho ntawm cov no tsis yog kev phais lub hlwb, tab sis muaj qee qhov tsis yog -kev sib tham.
Lub pob zeb pob zeb- Nws yuav tsum tau tsim kom raug. Cov lej hauv zos, cov khoom siv hluav taws xob, thiab cov khoom siv qhov ntev yog qhov tseem ceeb hauv. Tsis txhob tis nws.
Kev tshem tawm- Koj xav tau chaw ua haujlwm txaus nyob ib ncig ntawm lub tsev rau kev ua haujlwm thiab kev saib xyuas. Ntseeg kuv, koj tsis xav pom koj nyob hauv qhov chaw luv luv tom qab txhua yam nyob hauv qhov chaw.
Grounding thiab bonding- Covtank, kab thaiv kab, thiabgrounding systemtxhua yam yuav tsum tau sib raug zoo. Cov lej hluav taws xob zoo nkauj tshwj xeeb txog cov khoom no.
Kev sib txuas cable- Cov kab ke hauv av feem ntau yog siv cov khoom sib txuas sib txuas, lub luj tshib txuas, thiab cov thawj / theem nrab bushings. Tau txais cov no yog thawj zaug.
Ib puag ncig- Xav txog kev pheej hmoo dej nyab, ntug dej hiav txwv corrosion, qhov kub thiab txias, kev nkag mus tau, thiab seb ib tus neeg puas tuaj yeem rov qab mus rau nws nrog lub tsheb thauj khoom.
Ib txwm ua raws NEC cov cai, cov cai hauv zos, thiab cov qauv siv hluav taws xob. Tsis muaj shortcuts - hnyav heev.
Yuav xaiv qhov zoo li cas yam tsis rub koj cov plaub hau tawm
Xaiv txoj caipad mounted transformertsis yog tsuas yog rub ib yam dab tsi nrog txoj cai kVA tawm ntawm lub txee. Nov yog ib txoj hauv kev zoo:
1. Txheeb xyuas koj lub nra
Saib ntawm kev sib txuas load, xav tau load, lub cev muaj zog pib xav tau, kev nthuav dav yav tom ntej, lub zog muaj zog. Oversize thiab koj nkim nyiaj. Undersize thiab koj yuav muaj overheating thiab ua tsis tiav ntxov ntawm koj txhais tes.
2. Ob npaug - xyuas qhov voltages
Xyuas kom tseeb tias thawj thiab theem nrab voltages phim qhov koj ua haujlwm nrog. Thiab tsis txhob hnov qab txog zaus thiab kev npaj hauv av.
3. Xaiv cov txheej txheem tiv thaiv
Qhov no cuam tshuam rau kev xaiv fuse, hloov kev teeb tsa, kev sib koom ua haujlwm tam sim no, thiab kev tiv thaiv surge. Tau ib tus neeg paub txog kev sib koom tes los ntsuas qhov ntsuas.
4. Xav txog kev txwv lub cev
Qhov loj me, qhov hnyav, qhov chaw nkag cable, qhov chaw muaj, kev saib xyuas kev siv -tag nrho qhov no tseem ceeb tshaj qhov koj xav.
Koj Pre-Quote Checklist
Ua ntej koj pib thov rau quotes, npaj cov ntaub ntawv no:
| Cov ntaub ntawv xav tau | Paub meej |
|---|---|
| Daim ntawv thov | Utility, coj mus muag, industrial, tauj dua tshiab, EV |
| Theem | Tib-phase lossis peb-phase |
| kVA ntsuas | Yuav tsum muaj peev xwm |
| Thawj qhov voltage | Kev siv hluav taws xob |
| Secondary voltage | Load voltage |
| Ntau zaus | 50Hz lossis 60Hz |
| Pub hom | Radial los yog voj feed |
| Hom pem hauv ntej | Tuag - pem hauv ntej los yog nyob - pem hauv ntej |
| Hom kua dej | Mineral roj los yog ester |
| Txuj | IEEE / ANSI / utility specification |
| Ntau | Tus naj npawb ntawm cov units |
| Qhov project ncua sij hawm | Yuav tsum muaj hnub yug |
Xav tau kev pab txheeb xyuas tag nrho cov no? Xa hla koj ib qho - kab kos duab, cov ntsiab lus thauj khoom, thiab qhov xav tau ntawm qhov project thiab peb yuav tau txais cov lus pom zoo rau koj.
Cov lus teb ceev rau cov lus nug
Qhov txawv ntawm lub ncoo -mounted thiab ncej-mounted transformer yog dab tsi?
Pad-mounted zaum hauv av hauv lub txee kaw rau hauv av. Ncej-mounted hangs rau ntawm cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob. Pad-mounted zoo dua thiab tswj huab cua zoo dua, tab sis siv ntau dua vaj tsev.
Tuag- pem hauv ntej txhais li cas?
Nws txhais tau tias tsis muaj cov khoom siv hluav taws xob raug nthuav tawm thaum lub sijhawm ua haujlwm. Muaj kev nyab xeeb rau txhua tus neeg koom nrog.
kVA qhov ntau thiab tsawg yog muaj?
Los ntawm cov tsev nyob me me nyob ib ncig ntawm 25 kVA tag nrho mus txog qhov loj peb -phase units tshaj 5000 kVA. Txhua yam yog nyob ntawm seb koj muaj zog npaum li cas.
Yuav siv sijhawm ntev npaum li cas thiaj tau txais ib qho?
Lub sij hawm txhuas nyob ntawm qhov ntsuas, chav kawm voltage, accessories, khoom muaj, thiab cov chaw tsim khoom lub sijhawm. Standard units nkoj sai dua. Kev cai units tsim los rau kev siv hluav taws xob specs siv sijhawm ntev dua.
Cov ntaub ntawv dab tsi kuv xav tau rau kev tsocai?
Peev xwm (kVA), thawj thiab theem nrab voltages, theem, pub configuration, kev tiv thaiv yuav tsum, siv tau, qhov chaw xa khoom, thiab ncua sij hawm.
Cov neeg tsim khoom puas tuaj yeem tsim cov khoom siv hluav taws xob?
Koj thawj koom ruam-feem ntau tuaj yeem tsim thiab tsim tau raws li cov qauv siv hluav taws xob, IEEE cov qauv, thiab qhov project- cov kev cai tshwj xeeb.
Npaj Kom Tau Txais Ib Daim Ntawv Tso Cai?
Xaiv txoj caipad mounted transformerua rau qhov sib txawv tiag tiag hauv kev txhim khu kev qha thiab ua haujlwm tau zoo ntawm koj qhov kev faib tawm hauv av hloov tawm. Txawm hais tias koj xav tau ib qho -theem tsev nyob, peb lub-theem industrial transformer, lossis lub voj voog hloov pauv hloov pauv rau qhov project loj, tau txais cov kws tshaj lij tawm tswv yim pem hauv ntej txuag kev mob taub hau.
Ua kom tiav nrog koj qhov kev xav tau ntawm qhov project-peb cov kws tshaj lij transformer tuaj yeem muab cov lus qhia, kos duab kos duab, cov khoom tshwj xeeb, cov ntawv xeem, thiab lub sijhawm xa khoom. Cia peb pab koj nrhiav qhov haum rau koj daim ntawv thov.
FAQ
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.
