Grounding Transformer: Txoj Cai Ua Haujlwm, Hom, Daim Ntawv Thov, thiab Cov Lus Qhia Xaiv
A grounding transformeryog ib qho tseem ceeb hauv cov tshuab hluav taws xob hluav taws xob uas anruab nrab kev sib txuasyog tsis muaj los yog yuav tsum tau tsim. Nws muab ibgrounding pointraupeb -phase systems, tso cai rau kev tswj qhov txhaum tam sim no ntws thaum ib kab - mus rau - txhaum hauv av.
Hauv ntau qhov nruab nrab -voltage networks, tshwj xeeb tshaj yogdelta- txuassystems, tsis muaj qhov nruab nrab nruab nrab. Yog tias tsis muaj kev sib txuas nruab nrab, kev ua txhaum hauv av tuaj yeem tsim tsis ruaj tsis khov voltages, rwb thaiv tsev kev ntxhov siab, thiab teeb meem rau kev tiv thaiv. Agrounding transformerdaws qhov teeb meem no los ntawm kev tsim kom muaj kev siv nruab nrab thiab txhim kho tag nrho kev nyab xeeb thiab kev ntseeg siab ntawm lub hwj chim network.
Hnub no,grounding transformersyog dav siv nyob rau hauvkev faib khoom siv hluav taws xob, renewable zog tej yaam num, industrial nroj tsuag,substations, thiabmicrogrid daim ntawv thov. Nrog kev loj hlob sai ntawmhnub ci ua liaj ua teb, cua zog, thiab roj teeb lub zog cia tshuab, txhim khu kev qha grounding daws tau dhau los ua qhov tseem ceeb.
Dab tsi yog Grounding Transformer?
A grounding transformeryog lub transformer tsim los muab
a nruab nrab pointrau lub tshuab hluav taws xob uas tsis muaj ib qho. Nws yog qee zaum hu ua ib qhoearthing transformer, tshwj xeeb tshaj yog nyob rau hauv kev lag luam thoob ntiaj teb.
Tsis zoo li ib lub hwj chim transformer, agrounding transformerNws tsis yog tsim los hloov hluav taws xob tsis tu ncua ntawm ib theem voltage mus rau lwm qhov. Nws lub hom phiaj tseem ceeb yog los tsim ib qhoqis -impedance txoj kevrauxoom- ntu ntu tam sim nothaum muaj kev txhaum hauv av.
Thaum lub sijhawm ua haujlwm li qub, lubgrounding transformernqa tam sim no tsawg heev. Thaum muaj qhov ua txhaum hauv av, nws tso cai rau qhov txhaum tam sim no rov qab los ntawm txoj hauv kev nruab nrab hauv av kom cov kev tiv thaiv relays tuaj yeem txheeb xyuas qhov txhaum thiab cuam tshuam qhov cuam tshuam.
| Muaj nuj nqi | Kev piav qhia |
|---|---|
| Neutral point creation | Muab kev sib txuas hauv av nruab nrab rau cov tshuab tsis muaj ib qho |
| Av txhaum txoj kev tam sim no | Tso cai rau xoom- ntu ntu tam sim no ntws thaum ua txhaum |
| Kev txhawb nqa kev tiv thaiv | Ua kom cov relays thiab cov cuab yeej tiv thaiv kom pom qhov ua txhaum hauv av |
| Voltage stabilization | Pab txo qhov txawv txav voltage nce thaum ua txhaum |
| Cov cuab yeej tiv thaiv | Txo hluav taws xob kev nyuaj siab ntawm cables, transformers, thiab switchgear |
Lub Grounding Transformer ua haujlwm li cas?
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm agrounding transformeryog nyob ntawm
tsim ib txoj hauv kev tswj rau xoom- ntu ntu tam sim no.
Nyob rau hauv ib txwm peb -phase system, peb theem tam sim no sib npaug thiab lawv cov vector sum yog xoom. Thaum ib zaug - kab - mus rau - hauv av txhaum, qhov nyiaj tshuav no cuam tshuam, ua rau xoom- ntu ntu tam sim no.
A grounding transformermuab qhov tsim nyog nruab nrab kev sib txuas kom qhov tam sim no tuaj yeem ntws tau zoo los ntawm cov av hauv av. Cov txheej txheem tiv thaiv tuaj yeem tshawb xyuas qhov teeb meem txhaum cai thiab ua haujlwm Circuit Court breakers thaum xav tau.
Covgrounding transformertsis nquag muab hluav taws xob thauj khoom. Hloov chaw, nws tseem npaj los dawsluv- lub sijhawm ua txhaum caithiab tswj qhov system stability.
Yam tseem ceeb ntawm Grounding Transformers
Grounding transformers feem ntau yog cais raws li lawv cov kev npaj winding thiab grounding txoj kev.
Zig-Zag Grounding Transformer
A zig-zag grounding transformeryog ib qho ntawm cov qauv siv feem ntau hauv nruab nrab -voltage systems. Nws tshwj xeeb txuas windings tsim ibnruab nrab pointthaum muab txoj kev qis impedance rau xoom- ntu ntu tam sim no.
Qhov kev tsim no yog dav nyiam vim nws muab kev ua tau zoo hauv av nrog cov qauv sib txuam.
| Qhov zoo | Kev piav qhia |
|---|---|
| Compact tsim | Yuav tsum muaj qhov chaw tsawg dua piv nrog qee qhov kev xaiv |
| Kev siv av zoo | Muab xoom-ib ntu impedance |
| Tus nqi- zoo | Feem ntau pheej yig rau nruab nrab -voltage applications |
| Yooj yim installation | Haum rau kev faib khoom thiab kev siv hluav taws xob txuas ntxiv |
Cov ntawv thov muaj xws li cov khoom siv hluav taws xob faib hluav taws xob, cov nroj tsuag hnub ci, cua ua liaj ua teb, thiab cov chaw tsim khoom lag luam.
Delta -Wye Grounding Transformer
A delta-wye grounding transformersiv lub delta - txuas thawj sab thiab ib sab av pem hauv ntej los tsim qhov nruab nrab nruab nrab.
Qhov kev teeb tsa no feem ntau xaiv thaum tsim cov txheej txheem yuav tsum muaj kev sib txuas hauv nruab nrab hauv nruab nrab. Nws yog feem ntau siv nyob rau hauvloj substations thiab industrial fais fab systemqhov twg hauv av kev ua tau zoo thiab kev sib koom ua txhaum yog qhov tseem ceeb.
Grounding Transformer nrog Neutral Grounding Resistor
Hauv ntau daim ntawv thov, agrounding transformeryog ntsia ua ke nrog aNruab nrab grounding resistor (NGR). Lub resistor txwv tus nqi ntawm qhov txhaum tam sim no ntws los ntawm txoj kev hauv av.
Txoj hauv kev no pab txo cov thermal thiab mechanical kev ntxhov siab ntawm cov khoom siv hluav taws xob thaum tseem tso cai rau cov cuab yeej tiv thaiv ua haujlwm kom raug.
| Txoj kev hauv av | Yam ntxwv |
|---|---|
| Khoom hauv av | Tso cai rau kev ua txhaum ntau dua tam sim no thiab kev tiv thaiv ceev ceev |
| Kuj grounding | Lim txwv tam sim no los txo cov khoom puas tsuaj |
| High kuj grounding | Ua kom muaj kev txhaum tam sim no tsawg heev thiab txhim kho txuas ntxiv |
Transformer vs Fais fab Transformer
Txawm hais tias ob qho khoom siv ua haujlwm raws lielectromagnetic txoj cai, lawv lub luag haujlwm txawv.
| Feature | Grounding Transformer | Fais fab Transformer |
|---|---|---|
| Lub hom phiaj tseem ceeb | Tsim ib qho chaw hauv av | Hloov hluav taws xob |
| Kev ua haujlwm li qub | Nqa me me lossis tsis muaj load tam sim no | Ua haujlwm tsis tu ncua hauv load |
| Kev sib txuas nruab nrab | Lub luag haujlwm tseem ceeb | Feem ntau tsis yog lub hom phiaj tseem ceeb |
| txhaum cai | Tsim los rau luv luv - lub sijhawm ua txhaum cai | Tsim los rau kev hloov hluav taws xob tas mus li |
| Tej kev siv | Grounding systems, substations, renewable nroj tsuag | Generation, kis, faib |
A grounding transformeryog kev tiv thaiv thiab kev ruaj ntseg ntaus ntawv es tsis yog lub zog xa hluav taws xob hloov pauv.
Daim ntawv thov ntawm Grounding Transformers
Renewable Energy Projects
Cov tshuab hluav taws xob tauj dua tshiab feem ntau xav taugrounding transformers vim tias ntau lub inverter-raws li cov tshuab tsim tsis muab kev sib txuas ncaj qha.
Hnub ci photovoltaic nroj tsuag, cua ua liaj ua teb, thiab roj teeb cia tshuab feem ntau sivgrounding transformers los txhim kho kev tiv thaiv txhaum thiab kab sib chaws ruaj khov.
Hauv cov ntawv thov no,grounding transformers pab tiv thaiv:
Inverter systems
Cov koom tes sib sau
Nruab nrab-voltage cables
Kauj ruam - nce transformers
Utility Distribution Networks
Kev siv hluav taws xob siv hluav taws xobgrounding transformers nyob rau hauv nruab nrab -voltage thiab high-voltage tis networks uas yuav tsum tau grounding tsis tuaj yeem ua tiav los ntawm kev sib txuas ntawm transformer uas twb muaj lawm.
Lawv txhawb kev txhim khu kev lag luam kab sib chaws los ntawm kev txhim kho kev tshawb nrhiav qhov tsis raug thiab txo qhov kev pheej hmoo ntawm cov khoom siv puas tsuaj thaum muaj xwm txheej txawv txav.
Industrial Power Systems
Cov chaw lag luam loj feem ntau ua haujlwm sib txuas hluav taws xob nrog cov motors, tsav tsheb, thiab cov khoom siv rhiab heev. Agrounding transformermuab ib txoj kev tswj hauv av uas txhim kho kev tiv thaiv.
Cov ntawv thov kev lag luam feem ntau suav nrog cov chaw tsim khoom, kev ua haujlwm tsuas, cov chaw siv roj thiab roj, thiab kev lag luam hnyav.
Cov Ntsiab Lus Tseem Ceeb rau Kev Xaiv Ib Qhov Kev Hloov Pauv Hloov
Xaiv qhov rauggrounding transformeryuav tsum xav txog qhov system voltage, txhaum tej yam kev mob, installation ib puag ncig, thiab grounding yuav tsum tau.
Kev ntsuas hluav taws xob
Qhov ntsuas hluav taws xob hauv av transformer yuav tsum ua raws li cov khoom siv hluav taws xob uas nws yuav raug teeb tsa.
| Qib voltage | Daim Ntawv Thov Kev Sib Tham |
|---|---|
| 4.16 kv | Industrial faib tshuab |
| 6,6kv ua | Cov chaw tsim khoom |
| 11kv ua | Kev faib khoom siv hluav taws xob |
| 13.8 kV 2 | Kev lag luam thiab kev lag luam fais fab |
| 33kv ua | Renewable zog thiab substations |
Fault Current Rating
Lub grounding transformer yuav tsum tau tsim los tiv thaiv qhov kev cia siab hauv av tam sim no rau lub sijhawm xav tau.
Cov qauv tsim tseem ceeb muaj xws li:
| Parameter | Kev piav qhia |
|---|---|
| Zero-ib ntu impedance | Txheeb xyuas cov yam ntxwv hauv av |
| Luv - lub sijhawm ntsuas tam sim no | Txhais qhov kev ua txhaum cai tam sim no |
| Lub sijhawm ua txhaum | Qhia ntev npaum li cas lub transformer tuaj yeem tiv taus cov xwm txheej tsis raug |
Feem ntaugrounding transformercov luag num ntsuam xyuas suav nrog10 vib nas this, 30 vib nas this, thiab 60 vib nas thisnyob ntawm qhov system xav tau.
Txoj kev txias
Grounding transformers muaj nyob rau hauv ob qho tib siqhuav - homthiabroj- raustsim.
| Hom cua txias | Kev piav qhia |
|---|---|
| AN | Cua ntuj cua txias |
| AF | Cua yuam kom txias |
| ONAN | Roj ntuj cua ntuj cua txias |
| ONAF | Roj ntuj cua yuam kom txias |
Qhuav- hom grounding transformersfeem ntau xaiv rau kev teeb tsa sab hauv tsev vim lawv qhov zoo ntawm kev nyab xeeb hluav taws thiab kev saib xyuas qis dua.Roj - rausCov qauv tsim feem ntau yog siv sab nraum zoov thiab hauv cov chaw ua haujlwm substations uas yuav tsum muaj kev ntsuas hluav taws xob ntau dua.
Cov txiaj ntsig ntawm kev siv lub tshuab hloov hluav taws xob
Tsim kom rauggrounding transformertxhim kho
hluav taws xob system kev ua tau zoo nyob rau hauv ntau txoj kev.
Nws muab cov ntsiab lus nruab nrab txhim khu kev qha rau cov tes hauj lwm uas tsis tuaj yeem ua lwm yam hauv av, tso cai rau kev tiv thaiv kev ua haujlwm kom raug thaum muaj teeb meem hauv av. Los ntawm kev tswj xyuas qhov txhaum tam sim no, nws kuj txo cov kev ntxhov siab ntawm cov khoom siv hluav taws xob thiab pab txuas ntxiv lub neej kev pab cuam.
Rau lub zog tauj dua tshiab thiab niaj hnub faib network,grounding transformers muab kev daws teeb meem zoo rau kev tswj xyuas kab sib chaws kev ntseeg siab thaum txhawb nqa cov khoom siv hluav taws xob ntau dua.
Yawei Transformer Grounding Transformer Solutions
Yog Transformertsim thiab manufacturesgrounding transformers rau kev siv hluav taws xob, kev lag luam, thiab kev siv hluav taws xob tauj dua tshiab.
Pebgrounding transformercov kev daws teeb meem suav nrog:
Zig-zag grounding transformers
Neutral grounding transformers
Grounding transformers nrog NGR systems
Roj- raus hauv av transformers
Qhuav- hom grounding transformers
Txhua chav tsev tuaj yeem hloov kho raws li qib voltage, txhaum tam sim no, txoj hauv kev hauv av, thiab ib puag ncig kev teeb tsa.
Nrog rau kev tsim cov thev naus laus zis, kev tswj xyuas nruj, thiab kev tsim vaj tsev hauv kev tsim hluav taws xob hloov hluav taws xob, Yawei Transformer muab cov kev daws teeb meem txhim khu kev qha rau cov khoom siv hluav taws xob niaj hnub no.
Cov lus nug nquag nug txog Grounding Transformers
A grounding transformertsim ib qho chaw nruab nrab thiab muab txoj hauv kev rau hauv av txhaum tam sim no hauv cov tshuab hluav taws xob uas tsis muaj kev sib txuas nruab nrab.
Raws li kev ua haujlwm ib txwm muaj, nws nqa me ntsis lossis tsis muaj tam sim no. Nws tsuas yog ua haujlwm thaum muaj xwm txheej hauv av.
A grounding transformertseem hu ua earthing transformer, tshwj xeeb tshaj yog nyob rau hauv IEC-raws li kev lag luam.
Tsis yog Agrounding transformeryog tsim los rau hauv av thiab tiv thaiv lub hom phiaj, tsis yog rau kev siv hluav taws xob tas mus li.
Lawv feem ntau siv rau hauv cov chaw nres tsheb, cov chaw tsim hluav taws xob tauj dua tshiab, cov chaw tsim khoom, thiab nruab nrab -voltage tis networks.
Xaus
A grounding transformeryog ib qho tseem ceeb ntawm kev txhim kho kev nyab xeeb, kev cia siab, thiab kev tiv thaiv cov tshuab hluav taws xob niaj hnub. Los ntawm kev tsim ib qho chaw nruab nrab hauv av thiab muab txoj hauv kev tswj kev txhaum tam sim no, nws pab cov hluav taws xob sib txuas ua haujlwm zoo dua.
Los ntawm cov phiaj xwm hluav taws xob thiab hluav taws xob txuas ntxiv mus rau cov tshuab hluav taws xob muaj zog,grounding transformers tseem ua lub luag haujlwm tseem ceeb hauv kev tswj kom ruaj khov thiab txhim khu kev qha hluav taws xob.
Yog Transformermuab customizedgrounding transformercov kev daws teeb meem tsim los ua kom tau raws li qhov sib txawv ntawm qhov sib txawv, qhov yuav tsum tau ua hauv av, thiab cov kev siv rau kev siv.
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 tus 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.
