Moulded Case Circuit Breaker

CovMoulded Case Circuit Breaker (MCCB)yog lub hauv paus ntawm kev ruaj ntseg hluav taws xob niaj hnub, ua kom cov hluav taws xob hluav taws xob tau txais kev tiv thaiv los ntawm cov xwm txheej txaus ntshai xws li overloads, luv circuits, thiab av txhaum. Nyob rau hauv cov yas molded ruaj khov, MCCBs yog tsim los ua haujlwm kom ntseeg tau txawm tias nyob rau hauv ib puag ncig nyuaj uas rwb thaiv tsev thiab tiv thaiv plua plav, noo noo, thiab lwm yam kev phom sij tseem ceeb heev. Lawv cov qauv tsim, ua ke nrog lub peev xwm cuam tshuam siab, ua rau lawv muaj ntau yam thiab tsis tuaj yeem hla ntau yam kev siv, los ntawm kev siv tshuab mus rau kev lag luam hluav taws xob, thiab txawm tias cov hluav taws xob hauv tsev.

Kab lus no tshawb txog cov yam ntxwv tseem ceeb, cov txheej txheem, thiab kev siv ntawmMCCBs, qhia txog lawv lub luag haujlwm tseem ceeb hauv hluav taws xob kev nyab xeeb thiab kev ntseeg tau.

Moulded Case Circuit Breaker yog dab tsi?

CovMoulded Case Circuit Breaker (MCCB)yog ib hom khoom siv tiv thaiv hluav taws xob uas cuam tshuam qhov ntws ntawm tam sim no thaum lub sijhawm ua haujlwm tsis zoo. Encased nyob rau hauv ib tug tiv thaiv molded yas plhaub, MCCBs yog robustly tsim los tiv thaiv sab hauv Cheebtsam los ntawm ib puag ncig yam xws li plua plav thiab ya raws thaum tseem muab hluav taws xob rwb thaiv tsev.

MCCBs yog tsim los rau:

• cuam ​​tshuam hluav taws xob tam sim nonyob rau hauv qhov xwm txheej ntawm overload, luv luv Circuit Court, los yog av txhaum.
• Manually ua haujlwmcais circuits rau kev kho lossis kev nyab xeeb lub hom phiaj.
• Tswj cov dej ntws loj, ua rau lawv zoo tagnrho rau kev lag luam thiab kev lag luam systems.

Lawvsiab interrupting peevtso cai rau lawv kom muaj kev nyab xeeb cuam tshuam cov kev ua txhaum loj, txo qhov kev pheej hmoo ntawm kev puas tsuaj rau cov khoom siv hluav taws xob thiab tiv thaiv hluav taws. MCCBs tuaj nyob rau hauv ntau qhov ntau thiab tsawg thiab kev ntsuam xyuas, muab qhov yooj yim los siv rau hauv ntau hom hluav taws xob.

Kev Ua Haujlwm Mechanism ntawm MCCBs

MCCBs siv ob lub tswv yim tseem ceeb los kuaj xyuas thiab teb rau cov xwm txheej tam sim no txawv txav:kev tiv thaiv thermalthiabkev tiv thaiv hlau nplaum. Cov txheej txheem no xyuas kom meej tias MCCB tuaj yeem teb tau zoo rau ntau hom kev ua txhaum, txawm tias lawv tshwm sim maj mam (overload) lossis tam sim no (luv luv).

1. Thermal Trip Mechanism

Covthermal elementnyob rau hauv ib qho MCCB yog ib qho bimetallic strip uas teb rau cov cua sov uas tsim los ntawm cov tam sim no ntau dhau lub sij hawm. Raws li qhov tam sim no ntws los ntawm lub breaker nce siab tshaj tus nqi ntsuas, lub strips heats thiab khoov. Thaum lub sawb khoov mus rau ib qho taw tes, nws ua rau txoj kev mus ncig, txiav tawm lub zog.

Cov lus teb thermal no tshwj xeeb tsim los tiv thaivoverload tej yam kev mob, qhov twg tam sim no tshaj tus nqi ntsuas tab sis tsis instantly ua rau puas tsuaj. Lub thermal mus ncig ua haujlwm tso cai rau cov lus teb qeeb, kom ntseeg tau tias lub sijhawm tam sim no nce siab (xws li thaum pib ntawm lub cev muaj zog) tsis ua rau muaj kev cuam tshuam tsis tsim nyog. Txawm li cas los xij, yog tias qhov overload txuas ntxiv mus, MCCB yuav tawm mus thiab tiv thaiv kev kub dhau ntawm cov xov hlau lossis cov khoom siv txuas nrog.

2. Magnetic Trip Mechanism

Covhlau nplaumntawm MCCB muab kev tiv thaiv tam sim ntawd tiv thaiv luv luv. Nyob rau hauv luv luv Circuit Court, ib tug loj heev surge ntawm tam sim no ntws los ntawm lub breaker. Qhov kev nce siab no ua rau lub chaw sib nqus muaj zog txaus los mus rau lub breaker yuav luag tam sim ntawd, cuam tshuam qhov tam sim no ua ntej nws tuaj yeem ua rau muaj kev puas tsuaj loj.

Lub tshuab magnetic mus txawv tebchaws yog qhov tseem ceeb rau kev tiv thaivluv circuits, uas tshwm sim thaum muaj txoj kev tsis ncaj ncees rau hluav taws xob, bypassing lub load. Lub voj voog luv luv yog qhov txaus ntshai vim tias lawv tuaj yeem ua rau muaj kev puas tsuaj loj rau cov khoom siv thiab tam sim no hluav taws kub. Cov lus teb ceev ceev ntawm MCCB's magnetic trip mechanism tiv thaiv qhov tam sim no los ntawm kev mus txog qib txaus ntshai, tiv thaiv hluav taws xob zoo.

3. Adjustable Trip Settings

Ntau MCCBs tau nruab nrogadjustable mus txawv tebchaws chaw, tso cai rau cov neeg siv los hloov kho lub breaker qhov kev ua tau zoo kom tau raws li cov kev cai tshwj xeeb ntawm lawv qhov system. Qhov kev hloov kho no muab kev yooj yim dua nyob rau hauv cov nqe lus ntawm ob qho tib si thermal thiab sib nqus mus ncig.

Piv txwv li, hauv cov ntawv thov uas siv lub cev muaj zog, qhov pib tam sim no yuav siab dua li qhov ua haujlwm tam sim no. Los ntawm kev kho qhov chaw thermal mus txawv tebchaws, cov neeg ua haujlwm tuaj yeem tiv thaiv qhov tsis tsim nyog tripping thaum tseem ua kom ntseeg tau tias lub kaw lus muaj kev tiv thaiv thaum lub sijhawm ntev dhau. Ib yam li ntawd, kho qhov chaw sib nqus mus txawv tebchaws tso cai rau lub breaker teb zoo rau luv luv circuits ntawm ntau qhov sib txawv.

4. Phau ntawv thiab tsis siv neeg ua haujlwm

MCCBs yog tsim los rau ob qho tib siphau ntawvthiabtsis siv neeg ua haujlwm. Nyob rau hauv tej yam kev mob, lub breaker yuav manually ua rauhloov circuits rau lossis tawm, ua kom yooj yim rau kev saib xyuas lossis kuaj xyuas hluav taws xob zoo.

Nyob rau hauv qhov kev tshwm sim ntawm hluav taws xob txhaum cai, MCCB yuav cia li mus, txiav tawm lub hwj chim los tiv thaiv lub system. Qhov kev sib xyaw ua ke ntawm phau ntawv thiab kev ua haujlwm tsis siv neeg no txhim kho kev ua haujlwm yooj yim, tso cai rau kev saib xyuas thiab kev tiv thaiv tsis raug teem sijhawm.

5. Ntau yam kev ntsuas tam sim no

MCCBs muaj nyob rau hauv antau yam kev ntsuas tam sim no, los ntawm tsawg li 10 amperes (A) mus rau siab li 2,500 A lossis ntau dua. Qhov ntau yam no ua rau lawv tsim nyog rau kev siv thoob plaws ntau yam kev lag luam thiab ib puag ncig, los ntawm cov tsev nyob mus rau cov chaw lag luam loj.

Kev muaj peev xwm xaiv MCCB nrog qhov kev ntsuas tam sim no ua kom ntseeg tau tias lub tshuab hluav taws xob muab kev tiv thaiv kev ruaj ntseg yam tsis tas yuav poob thaum lub sijhawm ua haujlwm ib txwm muaj. Tsis tas li ntawd, MCCBs tuaj yeem ntsuas rau qhov sib txawv ntawm qhov sib txawv, suav nrog qhov tsis tshua muaj hluav taws xob (LV) thiab nruab nrab qhov hluav taws xob (MV), ntxiv dag zog rau lawv cov versatility.

Kev siv ntawm MCCBs

Vim lawv qhov kev hloov pauv thiab kev ua haujlwm siab, MCCBs tau siv thoob plaws ntau yamkev lag luam thiab ib puag ncig. Cov kev siv feem ntau suav nrog:

1. Industrial Systems

Hauv cov chaw tsim khoom, MCCBs yog qhov tseem ceeb rau kev tiv thaiv cov tshuab hnyav, hloov pauv, thiab cov tshuab hluav taws xob loj los ntawm kev ua txhaum uas yuav ua rau cov khoom puas tsuaj, poob qis, lossis hluav taws kub. MCCBs nrog cov kev ntsuam xyuas siab tam sim no thiab muaj peev xwm cuam tshuam tau zoo yog qhov tseem ceeb hauv kev lag luam xws li kev tsim khoom, mining, roj thiab roj, thiab lub zog tsim hluav taws xob, qhov chaw hluav taws xob muaj kev thauj khoom siab thiab muaj peev xwm ua txhaum tam sim no.

2. Cov tsev lag luam

Hauv cov tsev lag luam xws li khw muag khoom, chaw ua haujlwm, thiab tsev kho mob, MCCBs ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab txhim khu kev qha ntawm hluav taws xob hluav taws xob. Cov breakers no tiv thaiv HVAC systems, teeb pom kev zoo, elevators, thiab lwm yam tseem ceeb hauv tsev systems los ntawm overloads thiab luv luv circuits, pab tswj kom tsis tu ncua kev khiav hauj lwm thiab txo cov kev pheej hmoo rau cov neeg nyob.

3. Kev siv tsev

Txawm hais tias cov tshuab hluav taws xob hauv tsev feem ntau siv cov cuab yeej tiv thaiv me me xws li cov hluav taws xob me me (MCBs), MCCBs qee zaum siv rau hauv cov ntawv loj dua los yog qhov xav tau kev tiv thaiv ntau dua, xws li hauv cov tsev tsev lossis cov tsev uas muaj hluav taws xob loj (piv txwv li, hluav taws xob. tsheb them chaw nres tsheb). MCCBs muab qhov kev lees paub ntxiv ntawm kev tiv thaiv los ntawm cov teeb meem hluav taws xob hnyav dua hauv cov xwm txheej no.

4. Renewable Energy Systems

Raws li kev siv hluav taws xob txuas ntxiv dua tshiab xws li hnub ci thiab cua fais fab kev teeb tsa tau dhau los ua ntau dua, MCCBs tau siv ntau ntxiv los tiv thaiv cov inverters, transformers, thiab kev faib tawm hauv cov tshuab no. Lub peev xwm los kho qhov chaw mus txawv tebchaws tso cai rau MCCBs kom haum raws li qhov sib txawv ntawm cov khoom siv hluav taws xob thiab cov xwm txheej zoo ib yam ntawm cov khoom siv hluav taws xob tauj dua tshiab.

5. Utility thiab Infrastructure

MCCBs kuj tseem siv tau rau hauv cov khoom siv hluav taws xob, suav nrog cov hluav taws xob faib hluav taws xob, cov chaw sib txuas, thiab cov txheej txheem tseem ceeb xws li kev thauj mus los thiab cov chaw khaws ntaub ntawv. Ntawm no, lawv ua kom muaj kev ua haujlwm tsis tu ncua ntawm cov kev pabcuam tseem ceeb los ntawm kev tiv thaiv hluav taws xob ua txhaum cai uas tuaj yeem ua rau muaj kev puas tsuaj loj lossis kev puas tsuaj.

Qhov zoo ntawm Moulded Case Circuit Breakers

MCCBs muaj ntau yam zoo uas ua rau lawv xaiv rau kev tiv thaiv hluav taws xob hauv ntau daim ntawv thov:

1. Ntau yam

MCCBs muaj ntau yam ntau yam vim lawv qhov ntau ntawm cov kev ntsuas tam sim no thiab qhov hluav taws xob, kho qhov chaw mus txawv tebchaws, thiab muaj peev xwm los daws cov teeb meem qis thiab siab. Qhov no versatility ua rau lawv haum rau siv nyob rau hauv ntau haiv neeg ib puag ncig, los ntawm cov tsev nyob rau hauv loj industrial nroj tsuag.

2. Kev ntseeg siab

Kev tsim kho muaj zog thiab txhim khu kev qha mus txawv tebchaws ntawm MCCBs xyuas kom meej tias lawv muab kev tiv thaiv zoo ib yam dhau sijhawm. Lawv lub peev xwm cuam tshuam siab txhais tau hais tias txawm tias thaum muaj kev ua txhaum loj, MCCBs yuav cuam tshuam rau lub Circuit Court yam tsis ua haujlwm.

3. Kev nyab xeeb

Los ntawm kev tiv thaiv overloads, luv circuits, thiab av txhaum, MCCBs ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv ob qho khoom siv hluav taws xob thiab cov neeg ua haujlwm los ntawm cov xwm txheej txaus ntshai. Cov ntaub ntawv molded muab rwb thaiv tsev thiab kev tiv thaiv ib puag ncig, thaum lub tshuab tsis siv neeg mus ncig ua kom ntseeg tau tias qhov ua txhaum raug daws tam sim ntawd.

4. Kev tu yooj yim

MCCBs tuaj yeem ua tau yooj yim ua manually rau kev saib xyuas, tso cai rau cov kab hluav taws xob sib cais kom nyab xeeb yam tsis tas yuav tsum tau kaw tag nrho. Qhov no ua rau nws yooj yim rau kev kuaj xyuas, kho, lossis hloov kho dua tshiab yam tsis muaj kev cuam tshuam lwm qhov ntawm cov hluav taws xob network.

5. Qhov Chaw-Saving Design

Lub compact tsim ntawm MCCBs tso cai rau lawv siv nyob rau hauv nruj qhov chaw, xws li hluav taws xob vaj huam sib luag thiab switchboards, tsis muaj kev txi. Lawv lub peev xwm los tswj cov dej ntws loj hauv daim ntawv me me yog qhov muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov uas qhov chaw txwv.

Xaus

Cov Moulded Case Circuit Breaker(MCCB)yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob hauv hluav taws xob, muab ntau yam kev daws teeb meem, txhim khu kev qha, thiab muaj txiaj ntsig zoo rau kev tiv thaiv circuits ntawm overloads, luv circuits, thiab av txhaum. Nrog nws cov molded casing muaj zog, muaj peev xwm cuam tshuam, thiab kho qhov chaw mus txawv tebchaws, MCCB yog qhov zoo tagnrho rau ntau yam kev siv thoob plaws hauv kev lag luam, kev lag luam, thaj chaw, thiab lub zog tauj dua tshiab.

Txawm hais tias siv los tiv thaiv cov cuab yeej siv hnyav, tswj kev ua haujlwm nyab xeeb hauv cov tsev lag luam, lossis ua kom lub zog txuas ntxiv mus ntxiv, MCCBs muab kev nyab xeeb thiab kev ntseeg siab tsim nyog rau cov tshuab hluav taws xob niaj hnub no. Lawv ua ke ntawm thermal thiab sib nqus mus txawv tebchaws mechanisms ua kom ntseeg tau tias qhov ua yuam kev tau tshawb pom sai thiab daws teeb meem, txo qis kev pheej hmoo rau cov khoom siv thiab cov neeg ua haujlwm ib yam nkaus.

Hauv cov ntsiab lus, MCCB tsis tsuas yog tiv thaiv kev teeb tsa hluav taws xob nkaus xwb tab sis kuj ua kom muaj kev ruaj ntseg thiab ruaj ntseg ntawm cov hluav taws xob faib hluav taws xob, ua rau nws yog ib qho tseem ceeb hauv lub ntiaj teb niaj hnub ntawm hluav taws xob engineering.