Qhov txawv ntawm MCCB thiab ACB thiab VCB yog dab tsi?

Thaum xaiv cov cuab yeej kev nyab xeeb rau kev lag luam, nws yog ib qho tseem ceeb kom paub txog qhov sib txawv ntawm MCCB, ACB, thiab VCB. Lub tshuab hluav taws xob cua (ACB) tuaj yeem tswj tau qhov hluav taws xob qis mus rau nruab nrab nrog lub peev xwm tam sim no siab dua, lub tshuab hluav taws xob molded case circuit breaker (MCCB) ua haujlwm nrog qhov hluav taws xob qis mus rau nruab nrab txog li 1000V, thiab vcb Circuit Court breaker (lub tshuab hluav taws xob nqus tsev) tswj cov hluav taws xob nruab nrab mus rau siab los ntawm 6kV txog 40.5kV siv lub tshuab hluav taws xob nqus tsev arc extinction. Txhua lub thev naus laus zis muaj nws cov kev cai ua haujlwm, cov chav kawm voltage, thiab lub zog tawg uas muaj kev cuam tshuam tam sim ntawd rau kev nyab xeeb ntawm koj qhov project thiab nws cov nqi mus sij hawm ntev.

Kev Taw Qhia Txog MCCB, ACB, thiab VCB Circuit Breakers

Cov khoom siv tiv thaiv hluav taws xob uas txhim khu kev qha yog qhov xav tau hauv cov kab ke faib hluav taws xob hauv kev lag luam kom lawv ua haujlwm thiab zam kev puas tsuaj loj heev. Hauv ntau yam voltage thiab tam sim no, cov circuit breakers tiv thaiv kev thauj khoom ntau dhau, luv luv circuits, thiab kev puas tsuaj rau cov khoom siv.

Cov Haujlwm Tseem Ceeb hauv Cov Txheej Txheem Tiv Thaiv Hluav Taws Xob

Cov haujlwm tseem ceeb ntawm peb hom circuit breakers no zoo ib yam: lawv nrhiav pom cov dej ntws tsis zoo thiab txiav lub circuit ua ntej muaj kev puas tsuaj. Txawm li cas los xij, lawv txoj haujlwm sab hauv thiab lub peev xwm los tswj hluav taws xob txawv heev. Kev paub txog cov kev sib txawv no pab cov pab pawg yuav khoom phim cov yam ntxwv ntawm cov cuab yeej rau qhov xav tau ntawm lub kaw lus, es tsis txhob tsuas yog xaiv raws li tus nqi thaum xub thawj.

Cov Kev Ntsuas Tseem Ceeb Uas Koj Yuav Tsum Paub

Muaj ntau yam uas txiav txim seb lub circuit breaker puas tsim nyog. Lub zog ntsuas ntawm lub cuab yeej qhia koj tias lub zog siab tshaj plaws ntawm lub cev muaj zog uas nws tuaj yeem tswj tau zoo. Lub peev xwm tawg, uas feem ntau muab hauv kA, yog qhov teeb meem tam sim no loj tshaj plaws uas lub breaker tuaj yeem nres yam tsis ua rau puas tsuaj dab tsi. Qhov txwv kev ua haujlwm ib txwm yog teeb tsa los ntawm lub zog ntsuas. Cov kev cai no muaj feem cuam tshuam ncaj qha rau qhov chaw uas lawv yuav siv. Piv txwv li, cov khoom siv kev nyab xeeb rau 35kV substation yuav tsum txawv ntawm qhov rau 480V lub cev muaj zog tswj chaw.

Cov Chaw Ua Haujlwm Daim Ntawv Thov Uas Tsav Kev Xaiv

Kev ruaj ntseg ntawm lub voj voog yuav tsum tau kho kom haum rau txhua hom chaw uas siv hluav taws xob, suav nrog cov chaw tsim khoom uas muaj cov tshuab hnyav, cov chaw siv hluav taws xob rov ua dua tshiab uas muaj cov qauv tsim hluav taws xob hloov pauv, thiab cov chaw xa hluav taws xob hauv nroog uas pabcuam ntau lab tus tib neeg. Qhov kub thiab txias heev, qib pa phem, zaus hloov pauv, thiab tus naj npawb ntawm cov cuab yeej kho uas muaj txhua yam cuam tshuam rau cov thev naus laus zis breaker twg muaj tus nqi zoo tshaj plaws hauv lub neej. Kev paub txog cov yam ntxwv sab nraum zoov no thaum ntxov hauv cov txheej txheem yuav khoom ua rau muaj kev tsis sib xws kim ntawm yam khoom siv tuaj yeem ua thiab nws ua haujlwm li cas hauv daim teb.

Kev Sib Piv Txog Kev Siv Tshuab: MCCB vs ACB vs VCB

Cov hom hluav taws xob sib txawv ua haujlwm sib txawv thiab raug tsim ua ntau txoj hauv kev, uas txiav txim siab lawv qhov kev siv zoo tshaj plaws.

MCCB Cov Txheej Txheem Ua Haujlwm thiab Kev Tsim Kho

Cov khoom siv hluav taws xob uas muaj pwm muaj tag nrho lawv cov khoom kaw rau hauv lub thawv tiv thaiv, uas feem ntau yog ua los ntawm cov yas. Ob qho tib si thermal thiab magnetic trip units siv rau hauv lub kaw lus ua haujlwm. Bimetallic bands uas khoov thaum cua sov teb rau cov hluav taws xob overload ntev hauv cov khoom thermal, thaum magnetic coils teb tam sim ntawd rau cov hluav taws xob luv luv. Qhov kev nyab xeeb ob npaug no saib xyuas ob qho tib si qeeb overheating thiab ceev faults. MCCBs tuaj yeem siv rau hauv cov xwm txheej txog li 1000V, thiab cov hom niaj hnub tshaj plaws tuaj yeem tawg cov khoom thauj txog li 200kA. Lawv nrov hauv cov tsev lag luam thiab cov chaw lag luam me me vim tias lawv tsis siv ntau qhov chaw thiab yooj yim rau kev saib xyuas.

Kev Tsim Qauv thiab Lub Peev Xwm ntawm ACB

Cov cua circuit breakers siv cua hauv huab cua los tua lub arc. Thaum cov contacts tawg thaum lub sijhawm tawg, lub hluav taws xob hluav taws xob tsim ntawm lawv. Arc chutes siv rau hauv ACBs. Cov no yog ua los ntawm cov hlau phaj uas tau teeb tsa los faib, txias, thiab tua lub arc los ntawm cov hlau nplaum blow-out coils. Tus qauv tsim no tuaj yeem tswj cov tam sim no ruaj khov siab dua (txog li 6300A) thiab muaj cov chav hluav taws xob uas tuaj yeem hloov pauv hauv thaj teb los teeb tsa ntau qib kev mus ncig. ACBs muaj tus qauv kos tawm uas ua rau kev pabcuam yooj yim dua yam tsis tas tua lub zog rau cov tshuab nyob ze. Lawv ua haujlwm ntawm 690V txog 1000V hauv cov chaw lag luam uas xav tau hloov ntawm cov circuits feem ntau lossis sib koom ua ke lawv txoj kev nyab xeeb kom meej heev. Lawv yog tus choj ntawm MCCBs thiab cov kev xaiv high-voltage.

VCB Technology thiab Cov Txiaj Ntsig Tshwj Xeeb

Cov tswv yim yooj yim tom qab yuav ua li cas lub tshuab nqus tsev ua haujlwm sib txawv heev. Cov neeg sib cuag interrupter nyob hauv lub thawv nqus tsev uas raug kaw thiab yuav luag tsis muaj cov pa roj molecules. Thaum cov neeg sib cuag tawg, ib qho arc tshwm sim hauv qhov khoob, tab sis cov electrons sai sai kis tawm vim tias tsis muaj cov roj molecules los ua kom lub ionization mus ntxiv. Qhov no ua rau arc ploj mus sai heev - feem ntau yog hauv ib mus rau peb lub voj voog. VCB thev naus laus zis tshem tawm qhov kev pheej hmoo ntawm hluav taws, xav tau kev saib xyuas me ntsis, thiab me me txawm tias nws muaj cov nqi hluav taws xob siab. Qhov chaw nqus tsev kuj tseem tiv thaiv kev sib cuag oxidation, uas txhais tau tias lub tshuab yuav kav ntev dua 30,000 qhov kev ua. IEC 62271-100 cov qauv hais tias cov khoom siv zoo li ZN39-40.5 vcb Circuit Court breaker tuaj yeem ua haujlwm tawg ntawm txog li 31.5kA thiab cov ntsuas tam sim no ntawm 1250A thiab 3150A hauv 35kV kis tes hauj lwm.

Kev Sib Piv Txog Lub Peev Xwm Rhuav Tshem thiab Kev Nyab Xeeb

Feem ntau MCCBs tuaj yeem tswj cov khoom tawg ntawm 10kA thiab 200kA, tab sis qhov no nyob ntawm qhov loj ntawm lub thav duab thiab kev tsim kho. Qhov ntau no tau nce los ntawm ACBs mus rau 120kA, thiab lawv suav nrog cov yam ntxwv xws li kev sib txuas xaiv thaj chaw kom txo cov kev mus ncig tsis tsim nyog. Thaum siv dua thiab dua, VCBs ua haujlwm zoo heev vim tias lawv qhov kev ua haujlwm tawg tseem zoo ib yam li ntau txhiab tus txheej txheem yam tsis muaj kev puas tsuaj ntawm kev sib cuag. Thaum muaj qhov txhaum, qhov nruab nrab ntawm lub tshuab nqus tsev txwv qhov ntws ntawm tam sim no, uas txo qhov kev ntxhov siab ntawm cov khoom siv txuas. Cov kev sib txawv no hauv kev ua tau zoo muaj kev cuam tshuam ncaj qha rau kev tsim qauv. Piv txwv li, kev teev tus breaker uas muaj peev xwm tawg tsis txaus ua rau koj qhib rau kev pheej hmoo, thaum teev tus uas muaj peev xwm tawg ntau dhau ua rau koj siv nyiaj ntau dhau.

Cov Zoo thiab Cov Kev Txwv ntawm MCCB, ACB, thiab VCB

Kev paub txog qhov zoo thiab qhov tsis zoo ntawm txhua yam thev naus laus zis pab xaiv cov cuab yeej nrog rau qhov xav tau ntawm kev lag luam thiab cov nyiaj muaj.

Cov txiaj ntsig ntawm MCCB thiab cov ciam teb ntawm daim ntawv thov

Rau kev faib hluav taws xob qis txog li 1000V, MCCBs yog qhov kev xaiv pheej yig. Lawv txoj kev tsim kaw kaw tiv thaiv cov hmoov av thiab dej kom tsis txhob nkag mus rau hauv cov khoom sab hauv hauv cov chaw ua haujlwm nyuaj. Cov qauv zoo ua rau nws yooj yim rau kev sib koom ua ke cov vaj huam sib luag, thiab kev teeb tsa yooj yim txo lub sijhawm xav tau rau kev teeb tsa. Txawm li cas los xij, MCCBs yuav tsum tau hloov pauv tag nrho tom qab tso tseg cov teeb meem loj vim tias arc ua rau cov khoom sab hauv puas tsuaj rau txoj kev uas tsis tuaj yeem kho tau. Lawv lub peev xwm ruaj khov lossis txwv los hloov qhov chaw mus ncig txwv qhov yooj yim ntawm kev koom tes ruaj ntseg hauv cov phiaj xwm faib khoom nyuaj. Cov neeg ua haujlwm txij nkawm tsis tuaj yeem tshawb xyuas qhov xwm txheej ntawm cov neeg sib cuag yam tsis tau rhuav tshem lawv, uas ua rau nws nyuaj rau siv cov txheej txheem txij nkawm kwv yees.

Lub Zog ACB Thoob Plaws Cov Ntawv Thov Nruab Nrab-Tam Sim No

Cov cua circuit breakers ua haujlwm zoo tshaj plaws hauv cov xwm txheej uas lawv xav tau hloov ntawm cov xeev feem ntau thiab muaj cov chaw teeb tsa kev nyab xeeb uas tuaj yeem hloov pauv. Cov chav hluav taws xob tiv thaiv kev ua yuam kev hauv av, cia koj xaiv thaum twg yuav ncua cov xwm txheej, thiab tuaj yeem tham nrog cov txheej txheem tswj hwm lub tsev kom lawv tuaj yeem koom ua ke. Kev tsim qauv kos duab cia cov khoom hloov pauv sai sai thaum lub sijhawm kho qhov rais yam tsis ua rau cov kev sib txuas rau lub tsheb npav puas tsuaj. MCCBs tsis tswj hwm lub cev muaj zog pib inrush currents lossis capacitor switching transients zoo li ACBs ua. Txawm li cas los xij, lawv cov arc chutes yuav tsum tau kuaj xyuas thiab ntxuav tsis tu ncua, lawv siv ntau qhov chaw vaj huam sib luag dua li MCCBs zoo sib xws, thiab lawv cov cua-raws li arc extinction ua suab nrov thiab pom lub teeb emissions thaum lawv ua haujlwm.

VCB Dominance nyob rau hauv High-Voltage Ib puag ncig

Rau kev siv hluav taws xob nruab nrab ntawm 6kV thiab 40.5kV, ib qho vcb Circuit Court breaker yog qhov kev xaiv zoo tshaj plaws. Lub tshuab nqus tsev uas tiv thaiv tsis tas yuav tsum tau saib xyuas rau ntau xyoo lawm, yog li ntawd cov kev sib cuag tsis tas yuav tsum tau kuaj xyuas lossis hloov pauv tas li. Muaj cov txiaj ntsig rau ib puag ncig, xws li tsis tso cov pa roj av (tsis zoo li SF6 breakers) thiab tsis muaj cov kua kub hnyiab (tsis zoo li cov roj breakers). Lub pob me me zoo rau cov chaw hloov pauv uas tsis muaj chaw ntau hauv nroog. Cov hom sab nraum zoov, xws li ZW39-40.5, tuaj yeem tswj tau qhov kub thiab txias txij li -40 ° C txog + 45 ° C thiab tseem khaws lawv lub zog dielectric hauv huab cua qias neeg. Qhov teeb meem yog tias nws kim dua los teeb tsa dua li lwm cov thev naus laus zis thiab xav tau cov cuab yeej tshwj xeeb los sim qhov ruaj khov ntawm lub tshuab nqus tsev thaum nws siv.

Kev Tshawb Fawb Txog Tus Nqi Siv Lub Neej

MCCBs siv nyiaj tsawg tshaj plaws ua ntej, tab sis vim lawv tsis tuaj yeem tswj hwm qhov tawg rov qab, lawv yuav tsum tau hloov pauv ntau zaus hauv cov voj voog uas tsis ua haujlwm zoo. ACBs muaj tus nqi pib me me thiab cov khoom uas tuaj yeem kho tau. Txawm li cas los xij, lawv muaj cov nqi txuas ntxiv rau cov khoom xws li kev tswj hwm lub arc chute thiab calibrating nws tsis tu ncua. VCBs raug nqi ntau los yuav, tab sis lawv tsis raug nqi ntau los khiav dhau lawv lub neej kev pabcuam 20-30 xyoo. Thaum xam tag nrho tus nqi ntawm kev muaj, cov thawj coj kev yuav khoom yuav tsum saib cov khoom xws li qhov yuav ua tsis tiav, tus nqi ntawm lub sijhawm tsis ua haujlwm, tus nqi ntawm kev ua haujlwm tu, thiab muaj cov khoom seem. Tus nqi siab dua ntawm lub tshuab nqus tsev feem ntau them rau nws tus kheej hauv lub sijhawm tsis ua haujlwm tsawg dua thiab kev kho dua tsawg dua hauv cov xwm txheej tseem ceeb.

Xaiv Lub Circuit Breaker Zoo Rau Koj Cov Kev Xav Tau Hauv Kev Lag Luam

Yuav kom nrhiav tau cov thev naus laus zis hluav taws xob zoo rau ib txoj haujlwm, yuav tsum xav txog cov yam ntxwv hluav taws xob, cov xwm txheej ib puag ncig, thiab cov hom phiaj ua tau zoo.

Kev Ntsuas Hluav Taws Xob thiab Cov Ntsiab Lus Tseem Ceeb ntawm Lub Peev Xwm Tam Sim No

Ua ntej, nrhiav seb lub zog hluav taws xob ntawm lub cev muaj zog thiab qhov hluav taws xob siab tshaj plaws ntawm qhov chaw teeb tsa yog dab tsi. Rau qee qhov kev siv, muaj 1000V hom MCCBs uas tuaj yeem tswj hwm cov kab ke txog li 690V AC. ACBs feem ntau ua haujlwm ntawm 415V, 480V, 600V, lossis 690V, thiab lawv cov ntsuas tam sim no ruaj khov txij li 800A txog 6300A. Nrog cov theem tam sim no txij li 630A txog 3150A, lub vcb circuit breaker tuaj yeem tswj hwm qhov xav tau hluav taws xob nruab nrab txij li 6kV txog 40.5kV. Nrog rau qhov ntau ntawm cov cushion kev nyab xeeb, lub peev xwm tawg yuav tsum siab dua qhov siab tshaj plaws luv luv tam sim no kwv yees rau qhov chaw teeb tsa. Kev ntsuas qis dua tus qauv no ua rau tib neeg muaj kev nyab xeeb thiab tsis ua raws li cov cai.

Application-Specific Selection Guidelines

Cov ACBs uas muaj cov chav ua haujlwm harmonic-tolerant trip units pab tau zoo hauv cov chaw tsim khoom uas siv cov tsav tsheb zaus hloov pauv. Rau cov teeb tsa hluav taws xob rov ua dua tshiab uas txuas cov vaj huam sib luag hnub ci lossis cov cua turbines rau cov kab ke sau, VCBs yuav tsum tau pom zoo rau kev siv sab nraum zoov thiab muaj lub zog hluav taws xob impulse withstand voltage (BIL) rau qib kev pheej hmoo raug. Cov chaw khaws ntaub ntawv uas muab kev ua tau zoo tso ua ntej siv cov ACBs kos tawm kom lawv tuaj yeem kho tau sai. Hauv cov chaw khawb av nyob deb nroog uas nws nyuaj rau mus rau tus kws kho tshuab, cov kab ke VCB uas tsis tas yuav saib xyuas yog qhov zoo dua. Qhov tseem ceeb li kev paub cov lus qhia hluav taws xob yog kev nkag siab txog qhov chaw ua haujlwm, uas suav nrog kev hloov zaus, qhov kub thiab txias, qib pa phem, thiab qhov siab.

Kev Ua Raws Cai thiab Kev Txheeb Xyuas Daim Ntawv Pov Thawj

Cov khoom siv yuav tsum ua tau raws li cov qauv rau thaj chaw ntawd. Rau cov haujlwm hauv North America, UL, CSA, thiab ANSI/IEEE cov qauv siv. Rau cov chaw sab nraum North America, IEC cov qauv siv. IEC 62271-100 thiab GB 1984 hais tias ZN39-40.5 series vacuum circuit breakers yuav tsum muaj 185kV xob laim impulse withstand voltage thiab 95kV fais fab zaus withstand voltage. Tsis txhob tsuas yog nyob ntawm seb tus neeg tsim khoom hais li cas, xyuas cov ntawv pov thawj nrog cov chaw kuaj sab nraud. Cov ntaub ntawv ua raws li kev cai lij choj yog qhov tseem ceeb heev rau ob qho tib si pib ua haujlwm thiab tau txais kev pov hwm.

Kev Soj Ntsuam Cov Peev Xwm ntawm Cov Neeg Muab Khoom Tshaj Li Cov Lus Qhia Txog Khoom

Tsuas yog ib feem me me ntawm zaj dab neeg yuav khoom tau hais los ntawm cov ntaub ntawv kev siv tshuab. Tshawb xyuas lub peev xwm ntawm tus neeg muag khoom los ua tej yam, lawv cov txheej txheem tswj xyuas zoo (ISO 9001: 2015 daim ntawv pov thawj), thiab lawv cov khoom siv rau kev muab kev pab tom qab muag. Tus neeg muag khoom puas tuaj yeem ua cov kev teeb tsa uas tshwj xeeb rau kuv cov kev xav tau? Lub sijhawm ua khoom rau cov khoom ib txwm piv rau cov khoom hloov kho yog dab tsi? Yuguang lub Hoobkas Baoji muaj 39 daim ntawv pov thawj siv hluav taws xob thiab cov khoom siv kuaj siab heev, uas qhia tau tias nws tuaj yeem txuas ntxiv los nrog cov tswv yim tshiab. Cov neeg muag khoom uas muab kev txhawb nqa tag nrho los ntawm cov kws tshaj lij, xws li kev pab nrog kev xam, kev kawm txog lub kaw lus, thiab cov lus qhia ua haujlwm, txo qis kev pheej hmoo ntawm qhov project piv rau cov neeg muag khoom uas tsuas yog muag cov khoom siv.

To taub qhov tob ntawm Vacuum Circuit Breakers (VCB)

Cov thev naus laus zis ntawm lub tshuab hluav taws xob nqus tsev yog qhov tsim nyog saib ze vim tias nws siv dav hauv kev siv hluav taws xob nruab nrab tam sim no thiab ua haujlwm hauv txoj hauv kev tshwj xeeb.

Cov Ntsiab Cai ntawm Kev Cuam Tshuam Arc Nqus Tsev

Thaum cov neeg sib cuag VCB sib cais hauv lub tshuab nqus tsev, lub arc tsuas yog ua los ntawm cov hlau tsis muaj zog los ntawm cov chaw sib cuag thiab tsis muaj roj los ntawm thaj chaw. Cov pa no sai sai nthuav tawm thiab condenses ntawm cov hlau npog uas ncig lub rooj sib cuag. Thaum tam sim no xoom hla, lub arc xaus thiab qhov sib txawv ntawm lub tshuab nqus tsev sai sai rov qab tau nws lub zog rwb thaiv tsev. Qhov no tshwm sim ob zaug hauv ib lub voj voog, ntawm cov ntsiab lus ntuj uas AC tam sim no luv luv mus txog xoom. Cov txheej txheem no cia lub sijhawm arcing luv heev thiab kev poob ntawm kev sib cuag qis heev. ZN39-40.5 siv cov qauv sib cuag magnetic longitudinal uas nthuav lub arc hla qhov chaw sib cuag. Qhov no tiv thaiv kev puas tsuaj los ntawm kev tsom mus rau ib cheeb tsam thiab ua rau lub neej ntawm kev sib cuag dhau 100 qhov kev cuam tshuam txhaum.

Tsim Variations thiab Technical Specifications

VCBs muaj cov qauv tsim sib txawv, txoj kev ua haujlwm, thiab cov ntaub ntawv tsim kho. Thaum siv rau hauv thaj chaw qias neeg, cov insulators ceramic ua haujlwm zoo dua, thiab cov tsev polymer ua rau lawv yooj yim txav thiab teeb tsa. Thaum muaj qhov hluav taws xob tsis ua haujlwm, kev ua haujlwm ruaj khov yog khaws cia los ntawm cov khoom siv caij nplooj ntoos hlav uas khaws lub zog rau kev sib cuag txawm tias lub zog tswj hwm tawm mus. Qee qhov tseem ceeb yog qhov sib txawv ntawm kev sib cuag (10–20 hli), lub siab nqus (qis dua 10 ^ -4 Pa), thiab lub neej ntev (10,000+ cov txheej txheem). Lub ZW39-40.5 sab nraum zoov lub tshuab nqus tsev Circuit Court breaker muaj cov roj hmab silicone nplua thiab qhov deb creepage uas tau teeb tsa rau cov qib pa phem ntawm ntug dej hiav txwv lossis hauv cov chaw tsim khoom. Qhov no ua rau lub voj voog los ntawm kev luv luv thaum cov porcelain insulators ib txwm ua tsis tiav.

Kev Zoo Dua Li Lwm Cov Tshuab Nruab Nrab-Voltage

A vcb Circuit Court breaker zoo dua rau ib puag ncig dua li SF6 breakers vim tias lawv tsis tso cov pa roj av lossis yuav tsum tau tshaj tawm rau tsoomfwv. Cov roj circuit breakers tuaj yeem pib hluav taws thiab yuav tsum tau kuaj xyuas seb cov roj zoo li cas, tab sis VCBs tsis muaj cov teeb meem no. Cov cua magnetic breakers xav tau arc chutes kom tau kev pabcuam ntau zaus thiab ua suab nrov thaum lawv ua haujlwm. VCBs ua haujlwm yam tsis ua suab nrov, tsis tso cov roj lossis hluav taws, thiab tsuas yog yuav tsum tau roj mechanically txhua zaus. Lawv qhov me me cia cov conductors nyob ze dua hauv switchgear systems, uas txo cov nqi tag nrho ntawm kev teeb tsa.

Kev Txij Nkawm thiab Kev daws teeb meem

Lub tshuab txiav hluav taws xob kaw tsis yog lub ntsiab lus tseem ceeb ntawm kev saib xyuas VCB. Hloov chaw, cov khoom siv kho tshuab yog. Nws raug pom zoo kom kuaj xyuas cov kev sib txuas ntawm cov tshuab ua haujlwm ib xyoos ib zaug, kuaj xyuas qhov qhia txog kev hnav khaub ncaws, thiab kuaj xyuas lub voj voog tswj. Txhua 5 txog 10 xyoo, raws li qhov zaus ntawm lub kaw lus hloov pauv, yuav tsum tau ua qhov kev sim ua kom huv si siv cov txheej txheem hluav taws xob siab. Thaum daws teeb meem, nws yog qhov feem ntau los saib lub zog tswj, cov kauj voj voog, thiab cov cim qhia chaw dua li lub tshuab txiav hluav taws xob nws tus kheej. Qhov kev xav tau kev saib xyuas qis no txo ​​cov nqi siv tas mus li, tab sis nws txhais tau tias cov pab pawg ua haujlwm yuav tsum khaws cov khoom hloov pauv tsawg dua ntawm tes.

Common Industrial Applications

Hauv ntau qhov xwm txheej, cov tshuab hluav taws xob nqus tsev yog qhov kev xaiv zoo tshaj plaws. Lawv siv rau cov kab hluav taws xob 35kV nkag thiab tawm hauv cov chaw nres tsheb hauv nroog uas muaj chav tsawg thiab cov khoom siv me me yog qhov nyiam. Cov haujlwm hluav taws xob rov ua dua tshiab siv VCBs rau cov chaw txhawb nqa uas txuas cov chaw tsim hluav taws xob rau cov kab xa hluav taws xob vim tias lawv ua haujlwm zoo hauv thaj chaw nyob deb nroog thiab tsis tas yuav tsum tau saib xyuas. Cov lag luam hnyav, xws li cov chaw ua hlau thiab cov chaw tsim tshuaj lom neeg, siv lawv los tiv thaiv cov tshuab hluav taws xob thiab cov cav loj uas yuav tsum tau qhib thiab kaw ntau. Cov tuam txhab tsuas xaiv VCBs uas tuaj yeem ua haujlwm ntawm qhov siab thiab tsis pub hmoov av nkag. Txhua daim ntawv thov siv cov txiaj ntsig VCB sib txawv uas zoo tshaj plaws rau nws qhov chaw ua haujlwm.

xaus

Qhov kev xaiv ntawm lub tshuab hluav taws xob cuam tshuam rau kev nyab xeeb ntawm lub kaw lus, nws qhov kev ntseeg siab, thiab nws cov nqi mus sij hawm ntev dhau lub neej ntawm cov khoom siv. MCCBs tiv thaiv kev faib hluav taws xob qis txog li 1000V rau tus nqi qis, thiab lawv yooj yim rau kev teeb tsa thiab khaws cia. Rau kev siv nruab nrab-tam sim no uas xav tau kev hloov pauv yooj yim, ACBs sau cov qhov sib txawv nrog lawv qhov kev nyab xeeb hloov kho tau thiab kev pabcuam rub tawm. VCB Circuit Court breaker yog lwm qhov kev xaiv tseem ceeb, feem ntau siv hloov pauv nrog cov tshuab hluav taws xob nqus tsev, uas yog qhov kev xaiv zoo tshaj plaws rau cov kab ke nruab nrab-voltage los ntawm 6kV txog 40.5kV vim tias lawv tsis tas yuav tsum tau saib xyuas, muaj kev nyab xeeb rau ib puag ncig, thiab kav ntev rau ntau xyoo. Los ntawm kev sib phim cov thev naus laus zis breaker rau chav kawm voltage, cov theem tam sim no txhaum, zaus hloov pauv, thiab cov xwm txheej ib puag ncig, koj tuaj yeem paub tseeb tias cov khoom siv ua haujlwm raws li nws yuav tsum tau ua thiab muaj kev lag luam zoo. Thaum cov pab pawg yuav khoom ua haujlwm nrog cov neeg muag khoom uas muab cov lus qhia ntawm cov kws tshaj lij, lub peev xwm los kho cov khoom, thiab kev pab tom qab muag sai uas tuaj yeem hloov kho rau cov kev xav tau kev lag luam hloov pauv, lawv yeej.

FAQ

Lub neej ua haujlwm ntawm MCCB, ACB, thiab VCB circuit breakers yog dab tsi?

Feem ntau MCCBs siv tau 10,000 zaus ua haujlwm thiab 20 txog 25 zaus ua haujlwm qeeb ua ntej yuav tsum tau hloov. Raws li cov xwm txheej ib txwm muaj, lub neej ua haujlwm yuav siv tau li ntawm 10 txog 15 xyoos. Yog tias muaj kev saib xyuas zoo ntawm cov arc chutes thiab cov contacts, ACBs tuaj yeem ua tau 20,000 txog 30,000 zaus ua haujlwm thiab siv tau li ntawm 15 txog 20 xyoos. Feem ntau cov vacuum circuit breakers siv tau li ntawm 25 txog 30 xyoos, txawm tias tom qab ua haujlwm ntau tshaj 30,000 zaus thiab ntau tshaj 100 zaus ua haujlwm qeeb. Lub neej ua haujlwm tiag tiag nyob ntawm seb siv cov switches ntau npaum li cas, muaj pes tsawg zaus ua haujlwm qeeb, ib puag ncig, thiab cov khoom siv tau saib xyuas zoo npaum li cas.

VCBs xav tau kev saib xyuas ntau npaum li cas piv rau lwm hom breaker?

Kev saib xyuas rau VCBs tsawg dua li kev saib xyuas rau ACBs lossis roj tawg. Feem ntau cov kab ke tsuas yog yuav tsum tau kuaj xyuas thiab roj ib xyoos ib zaug xwb. Txhua 5 txog 10 xyoo, kev kuaj xyuas qhov zoo ntawm lub tshuab nqus tsev yuav tshwm sim. ACBs yuav tsum tau kuaj xyuas thiab ntxuav lawv cov arc chutes txhua peb txog rau lub hlis. MCCBs raug kaw, tab sis lawv tsis muaj ib qho khoom siv uas siv tau. Qhov txiaj ntsig kev saib xyuas no txo ​​cov nqi khiav thiab cov neeg ua haujlwm xav tau, uas yog qhov tshwj xeeb tshaj yog pab tau rau cov chaw nyob deb.

Kuv puas tuaj yeem hloov ACB uas twb muaj lawm nrog VCB hauv kuv lub chaw?

Qhov ua tau yog raws li chav kawm voltage. Nws tsis tuaj yeem siv VCBs es tsis txhob siv cov ACBs uas muaj hluav taws xob tsawg (480V-690V) vim tias VCBs tau tsim los rau kev siv hluav taws xob nruab nrab. Nws ua rau muaj kev nkag siab txog kev tshawb fawb thiab kev nyiaj txiag los hloov ntawm cov roj hluav taws xob nruab nrab lossis SF6 breakers mus rau VCB thev naus laus zis. Tej zaum yuav tsum tau hloov pauv rau lub vaj huam sib luag kom haum rau ntau qhov chaw tswj hwm thiab qhov loj me ntawm kev teeb tsa. Tham nrog cov neeg muab khoom siv thiab cov kws ua hluav taws xob kom paub seb lub kaw lus tshiab puas yuav ua haujlwm nrog cov kab ke tsheb npav tam sim no, cov phiaj xwm tswj hwm, thiab kev sib koom tes kev nyab xeeb.

Koom tes nrog Yuguang rau Kev daws teeb meem VCB Circuit Breaker txhim khu kev qha

Qhov kev ntseeg siab ntawm koj lub chaw ua haujlwm yuav nyob ntawm cov thev naus laus zis kev nyab xeeb ntawm lub voj voog uas koj xaiv rau ntau xyoo lawm. Yuguang ua cov khoom siv hluav taws xob zoo nrog cov hluav taws xob txij li 6kV txog 40.5kV uas tsim los ua haujlwm hauv cov chaw lag luam nyuaj. Peb cov koob ZN39-40.5 thiab ZW39-40.5 tau siv tau zoo hauv kev lag luam hnyav, cov chaw hloov pauv, thiab cov kab ke rau lub zog ntsuab thoob plaws ntiaj teb. Ua tus tsim khoom uas tau ntawv pov thawj ISO 9001: 2015, muaj 39 daim ntawv pov thawj, thiab tau lees paub tias yog lub tuam txhab thev naus laus zis siab hauv tebchaws, peb muab ob qho kev txawj tsim khoom siab heev thiab kev txhawb nqa sai sai.

Peb pab neeg ua haujlwm engineering tuaj yeem pab koj nrog kev xam lej, kev sib koom ua ke ntawm lub system, thiab kev pabcuam tom qab muag tag nrho, txawm tias koj xav tau cov khoom lag luam lossis cov kev daws teeb meem uas ua rau koj xwb. Email rau peb cov kws tshaj lij kev yuav khoom ntawm yog ygvcb@hotmail.com los tham txog cov kev xav tau ntawm koj qhov project thiab tau txais cov lus hais tshwj xeeb. Koj tuaj yeem saib peb daim ntawv teev tag nrho ntawm cov neeg muab khoom siv hluav taws xob vcb ntawm ygvcb.com thiab kawm paub tias Yuguang txoj kev paub tuaj yeem pab koj lub kaw lus faib hluav taws xob li cas.

References

1. IEEE Std C37.04-2018, "IEEE Tus Qauv rau Kev Ntsuas thiab Cov Kev Cai rau AC High-Voltage Circuit Breakers nrog Rated Maximum Voltage Saum 1000V," Lub Koom Haum ntawm Cov Kws Ua Hluav Taws Xob thiab Electronics, 2018.

2. IEC 62271-100:2021, "Cov khoom siv hloov hluav taws xob siab thiab cov khoom siv tswj - Ntu 100: Cov khoom siv hluav taws xob hloov pauv tam sim no," International Electrotechnical Commission, 2021.

3. Garzon, RD, "Cov Hluav Taws Xob Hluav Taws Xob Siab: Tsim thiab Daim Ntawv Thov," Tsab Thib 2, CRC Xovxwm, 2002.

4. Slade, PG, "Lub Tshuab Nqus Tsev Interrupter: Txoj Kev Xav, Kev Tsim Qauv, thiab Kev Siv," CRC Xovxwm, 2017.

5. Flurscheim, CH, "Lub Tswv Yim thiab Kev Tsim Qauv ntawm Lub Tshuab Hluav Taws Xob Hluav Taws Xob," Lub Koom Haum ntawm Cov Kws Ua Haujlwm Hluav Taws Xob, London, 1982.

6. ANSI/IEEE C37.010-1999, "IEEE Daim Ntawv Qhia rau AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis," American National Standards Institute, 1999.