Cov Haujlwm thiab Cov Txiaj Ntsig ntawm Transformers hauv Cov Tes Haujlwm Faib Khoom Siv Hluav Taws Xob
Cov transformers yog ib qho ntawm cov khoom siv tseem ceeb tshaj plaws hauv cov tshuab fais fab niaj hnub no. Yog tsis muaj lawv, kev faib hluav taws xob los ntawm cov chaw tsim hluav taws xob mus rau cov tsev, cov chaw ua haujlwm, thiab cov lag luam yuav tsis ua haujlwm zoo, kim heev, thiab txawm tias muaj kev pheej hmoo heev. Hauv lub network faib hluav taws xob - ib feem ntawm lub tshuab fais fab uas xa hluav taws xob los ntawm cov chaw hloov pauv mus rau cov neeg siv khoom - cov transformers ua lub luag haujlwm tseem ceeb hauv kev kho cov qib voltage kom ntseeg tau tias muaj kev nyab xeeb, ruaj khov, thiab haum rau qhov xav tau load. Tsab xov xwm no tham txog lub luag haujlwm tseem ceeb ntawm cov transformers, lawv cov txiaj ntsig hauv cov tes hauj lwm faib khoom, thiab vim li cas lawv thiaj li tseem ceeb rau kev muab hluav taws xob txhim khu kev qha.
To taub Transformers thiab Lawv Cov Ntsiab Cai Ua Haujlwm Luv Luv
Lub transformer yog ib lub cuab yeej hluav taws xob zoo li qub uas hloov cov hluav taws xob hloov pauv (AC) los ntawm ib qib voltage mus rau lwm qib yam tsis hloov qhov zaus. Cov transformers ua haujlwm raws li lub hauv paus ntsiab lus ntawm electromagnetic induction: alternating current hauv lub kauj thawj zaug tsim cov magnetic flux hauv lub hlau core, uas tom qab ntawd induces ib qho voltage hauv lub kauj thib ob. Qhov piv ntawm tus lej ntawm cov tig ntawm cov kauj thawj zaug thiab cov kauj thib ob txiav txim siab seb qhov voltage yuav nce (nce-nce) lossis txo (nce-qis).
Hauv cov tes hauj lwm faib khoom, feem ntau siv cov transformers los txo cov voltages nruab nrab (piv txwv li, 20 kV) kom txo cov voltages uas cov neeg siv khoom siv tau (piv txwv li, 400/230 V). Ntawm lwm qib, cov transformers kuj siv los nce cov voltages ntawm sab tsim hluav taws xob thiab sab kis hluav taws xob kom txo tau kev poob hluav taws xob.
Txoj Haujlwm Transformer Hauv Lub Tshuab Fais Fab
Feem ntau cov tshuab fais fab muab faib ua peb ntu tseem ceeb: kev tsim hluav taws xob, kev xa hluav taws xob, thiab kev faib hluav taws xob. Cov transformers muaj nyob rau ntau qhov chaw, tab sis lawv lub luag haujlwm pom tseeb tshaj plaws hauv lub network faib hluav taws xob, suav nrog:
1. Cov transformers ntawm substations (GI) kom txo qhov hluav taws xob kis (piv txwv li 150 kV lossis 70 kV) mus rau qhov hluav taws xob nruab nrab (piv txwv li 20 kV).
2. Cov tshuab hloov pauv hluav taws xob tau teeb tsa ze ntawm qhov chaw thauj khoom (ntawm cov ncej pob zeb lossis cov chaw hloov pauv) kom txo qhov hluav taws xob nruab nrab mus rau qhov hluav taws xob qis uas cov neeg siv khoom siv.
3. Cov transformers kev lag luam tsim tshwj xeeb los kho qhov voltage raws li cov txheej txheem ntau lawm, suav nrog rau cov khoom loj thiab rhiab heev.
Qhov muaj cov transformers ntawm cov theem no ua rau lub kaw lus muaj kev ywj pheej ntau dua vim tias lub zog tuaj yeem xa mus deb tau zoo, tom qab ntawd "txhais lus" mus rau qib hluav taws xob nyab xeeb thaum nws tuaj txog ntawm thaj chaw siv.
Lub Luag Haujlwm Tseem Ceeb ntawm Transformer hauv Kev Faib Khoom Network
1. Txo Qhov Hluav Taws Xob kom Ua Rau Nws Muaj Kev Nyab Xeeb Rau Cov Neeg Siv Khoom
Lub luag haujlwm paub zoo tshaj plaws ntawm lub tshuab hloov pauv hluav taws xob yog txo qhov hluav taws xob nruab nrab mus rau qhov hluav taws xob qis. Qhov hluav taws xob nruab nrab yog qhov tsim nyog los xyuas kom meej tias kev faib hluav taws xob zoo los ntawm cov chaw hloov pauv mus rau thaj chaw ntawm cov neeg siv khoom, tab sis nws siab dhau rau kev siv hauv tsev. Cov tshuab hloov pauv hloov nws mus rau qib kev nyab xeeb uas sib xws nrog cov khoom siv hluav taws xob txhua hnub.
Yog tias muaj qhov hluav taws xob tsim nyog, qhov kev pheej hmoo ntawm kev raug mob hluav taws xob yuav txo qis, kev teeb tsa ntawm cov neeg siv khoom yooj yim dua, thiab cov khoom siv hluav taws xob tuaj yeem ua haujlwm hauv lawv cov qauv tsim.
2. Txo Kev Poob Fais Fab Hauv Kev Faib Khoom
Kev poob hwj chim hauv cov neeg coj hluav taws xob feem ntau yog vim cua sov (I²R), qhov twg kev poob hwj chim nce ntxiv raws li lub xwmfab ntawm qhov tam sim no. Los ntawm kev nce qhov hluav taws xob (ntawm qhov pib xa / faib) thiab txo qhov tam sim no rau tib lub zog, kev poob hwj chim hauv cov cables tuaj yeem txo qis. Transformers ua rau txoj hauv kev no ua tau zoo: qhov hluav taws xob siab rau qhov deb ntev, qhov hluav taws xob qis dua rau kev siv kawg.
Hauv kev faib khoom, txawm tias qhov deb luv dua li kev xa xov, lub hauv paus ntsiab lus no tseem ceeb vim tias tus naj npawb ntawm cov neeg siv khoom loj thiab lub network npog thaj chaw dav.
3. Tswj Xyuas Qhov Zoo ntawm Voltage (Kev Tswj Xyuas Voltage)
Cov transformers pab tswj cov hluav taws xob ntawm cov neeg siv khoom kom nyob rau hauv qhov ntau thiab tsawg uas xav tau. Ntau lub transformers faib khoom muaj cov tap changers los kho qhov hluav taws xob tso zis thaum muaj kev hloov pauv ntawm cov khoom thauj lossis cov xwm txheej ntawm lub network hloov pauv. Qhov no tiv thaiv cov neeg siv khoom kom tsis txhob muaj cov hluav taws xob qis dhau (uas tuaj yeem ua rau cov cav kub dhau lossis teeb tsaus ntuj) lossis siab dhau (uas tuaj yeem ua rau cov khoom siv hluav taws xob puas tsuaj sai dua).
4. Muab Kev Cais Hluav Taws Xob ntawm Cov Khoom Siv System
Cov transformers muab kev cais galvanic ntawm sab thawj thiab sab thib ob. Kev cais no txhim kho kev nyab xeeb thiab pab rhuav tshem qee txoj kev txhaum. Hauv kev xyaum, kev cais no muaj txiaj ntsig zoo rau kev txo qhov kev pheej hmoo ntawm kev kis tus kab mob, tiv thaiv cov khoom siv ntawm cov neeg siv khoom, thiab txhawb nqa cov phiaj xwm av uas tswj tau zoo dua.
5. Txhawb Kev Sib Koom Thauj Khoom thiab Kev Teeb tsa Network
Hauv cov tes hauj lwm faib hluav taws xob, cov transformers pab faib cov khoom thauj mus rau thaj chaw tshwj xeeb. Kev tso ntau lub transformers nrog lub peev xwm thiab qhov chaw tsim nyog tuaj yeem txo qhov ntev ntawm cov tes hauj lwm qis-voltage, txo qhov poob hluav taws xob, thiab ua rau lub kaw lus loj dua. Thaum cov khoom thauj nce ntxiv, cov chaw siv hluav taws xob tuaj yeem ntxiv cov transformers lossis hloov lub peev xwm transformer yam tsis tas yuav hloov tag nrho lub network.
Cov txiaj ntsig ntawm Transformers rau Kev Ntseeg Tau thiab Kev Ua Haujlwm Zoo ntawm Network
1. Kev Txhim Kho Kev Ntseeg Siab ntawm Kev Muab Hluav Taws Xob
Cov transformers uas raug xaiv, teeb tsa, thiab saib xyuas kom zoo yuav pab txhawb kev ntseeg siab ntawm lub grid. Yog tias muaj kev sib koom thauj khoom kom zoo, cov transformers yuav tsis thauj khoom ntau dhau, ua rau txo qhov kev pheej hmoo ntawm kev kub dhau thiab kev ua tsis tiav. Ntxiv mus, cov grids uas muaj ntau qhov chaw hloov pauv tuaj yeem tsim los kom muaj zog dua rau kev cuam tshuam vim tias kev hloov pauv thauj khoom tuaj yeem ua tau los ntawm kev teeb tsa grid tshwj xeeb.
2. Kev Txuag Nyiaj Mus Ntev Rau Kev Ua Haujlwm
Txawm hais tias cov transformers sawv cev rau kev nqis peev thaum pib tseem ceeb, lawv cov txiaj ntsig hauv kev txo qhov kev poob hluav taws xob tuaj yeem tseem ceeb. Kev poob qis dua txhais tau tias cov neeg siv khoom tuaj yeem siv ntau lub zog tsim tawm. Rau cov neeg ua haujlwm hauv grid, qhov no txhais tau tias cov nqi ua haujlwm zoo dua thiab kev siv lub peev xwm tsim hluav taws xob zoo dua.
Cov transformers niaj hnub no kuj muaj nyob rau hauv cov qauv ua haujlwm siab nrog cov qauv tsim thiab cov ntaub ntawv uas txo cov tub ntxhais poob thiab tooj liab poob.
3. Txhawb Kev Sib Koom Tes ntawm Lub Zog Rov Ua Dua Tshiab
Nrog rau kev siv cov zog tshiab xws li cov chaw tsim hluav taws xob hnub ci ntawm lub ru tsev, cov tes hauj lwm faib hluav taws xob ntsib kev ntws hluav taws xob ob txoj kev. Cov transformers tseem ceeb heev hauv qhov chaw ib puag ncig no, ob qho tib si rau kev tswj hwm hluav taws xob, tswj hwm qhov zoo ntawm lub zog, thiab ua kom muaj kev ntsuas thiab kev tiv thaiv zoo. Cov transformers uas muaj kev saib xyuas thiab tsim los rau kev hloov pauv ntawm qhov hnyav tuaj yeem pab cov neeg ua haujlwm daws teeb meem kev hloov pauv ntawm lub zog tsim khoom.
4. Txhim kho qhov Voltage Profile ntawm Network End
Hauv cov cheeb tsam uas nyob deb ntawm qhov chaw muab hluav taws xob, qhov hluav taws xob poob feem ntau yog qhov teeb meem. Kev muab cov transformers faib khoom ze rau qhov load tuaj yeem ua rau cov kab hluav taws xob qis luv luv, txo qhov hluav taws xob poob. Qhov no cuam tshuam rau kev nplij siab ntawm cov neeg siv khoom (lub teeb pom kev zoo, cov motors uas tsis kub dhau) thiab lub neej ntev ntawm cov khoom siv hluav taws xob.
5. Kev Yooj Yim Rau Cov Kev Xav Tau Tshwj Xeeb
Cov kev lag luam sib txawv xav tau cov hluav taws xob sib txawv thiab cov yam ntxwv ntawm kev muab khoom. Qee lub lag luam xav tau cov transformers nrog cov kev teeb tsa tshwj xeeb, xws li rau cov khoom siv loj, cov harmonics siab, lossis cov kev xav tau hluav taws xob tshwj xeeb. Cov transformers ua rau cov tes hauj lwm faib khoom tuaj yeem pabcuam ntau yam ntawm cov neeg siv khoom yam tsis tas yuav tsim cov kab ke sib cais.
Cov Hom Transformers Feem Ntau Hauv Kev Faib Khoom
Hauv cov tes hauj lwm faib khoom, ntau hom transformers uas feem ntau ntsib suav nrog:
- Cov transformers faib khoom uas tau teeb tsa rau ntawm tus ncej: siv dav hauv thaj chaw nyob nrog cov tes hauj lwm saum toj kawg nkaus.
- Cov khoom siv hloov pauv hauv chaw hloov pauv khoom (mounted hauv av / pad-mounted): feem ntau nyob rau hauv cov nroog uas muaj cov tes hauj lwm hauv av.
– Cov transformers peb-theem thiab ib-theem: xaiv raws li qhov yuav tsum tau ua thiab kev teeb tsa network.
- Transformer nrog lub kais hloov pauv: rau kev kho qhov hluav taws xob zoo dua.
– Cov transformers tshwj xeeb: suav nrog cov transformers cais tawm, transformers rau cov khoom thauj tsis-linear, lossis transformers nrog kev tiv thaiv ib puag ncig tshwj xeeb.
Kev xaiv hom transformer yuav tsum xav txog lub peev xwm (kVA), qhov chaw, qhov kub thiab txias, qib siab tshaj plaws ntawm kev thauj khoom, kev kwv yees kev loj hlob ntawm kev thauj khoom, nrog rau cov yam ntxwv kev nyab xeeb thiab cov qauv kev siv tshuab.
Kev kaw
Cov transformers yog lub hauv paus ntawm lub network faib hluav taws xob. Lawv lub luag haujlwm tsis yog tsuas yog txo qhov hluav taws xob xwb, tab sis kuj ua rau kev faib hluav taws xob zoo dua, tswj qhov zoo ntawm qhov hluav taws xob, muab kev cais hluav taws xob, thiab txhawb nqa kev ntseeg siab thiab kev ywj pheej ntawm lub kaw lus. Cov txiaj ntsig tshwm sim - los ntawm kev txo qis kev poob hluav taws xob mus rau kev sib koom ua ke yooj yim dua ntawm lub zog rov ua dua tshiab - ua rau cov transformers yog lub cuab yeej tseem ceeb hauv kev ua kom cov pej xeem tuaj yeem txaus siab rau hluav taws xob muaj kev nyab xeeb, ruaj khov, thiab ruaj khov.
Yog tias koj npaj tau zoo, muaj kev npaj zoo, thiab kev saib xyuas tas li, cov tshuab hluav taws xob faib hluav taws xob tuaj yeem ua haujlwm tau zoo rau ntau xyoo tom ntej, pab kom lub zog hluav taws xob ua tau raws li qhov xav tau hluav taws xob uas nce ntxiv thiab nyuaj zuj zus.
