Qhov sib txawv thiab daim ntawv thov ntawm MCB thiab MCCB

Kev Nkag SiabMCCBthiabMCBCov Cheebtsam Tseem Ceeb ntawm Cov Txheej Txheem Hluav Taws Xob

Hauv kev tsim hluav taws xob thiab kev faib hluav taws xob, peb feem ntau ntsib cov lus "molded case circuit breaker (MCCB)" thiab "miniature circuit breaker (MCB)". Ob lub cuab yeej ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov circuits los ntawm kev overloads thiab luv circuits, tab sis lawv siv thiab tsim sib txawv. Tsab xov xwm no yuav kawm tob txog cov yam ntxwv, kev ua haujlwm, thiab kev siv ntawm molded case circuit breakers (MCCB) thiab miniature circuit breakers (MCB), thiab qhia txog lawv qhov tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab kev ua haujlwm zoo.

MCB yog dab tsi?

Lub tshuab hluav taws xob me me (MCB) yog ib lub cuab yeej me me uas tsim los tiv thaiv cov hluav taws xob ntawm kev thauj khoom ntau dhau thiab luv luv. MCBs feem ntau siv rau kev siv hauv tsev thiab kev lag luam nrog cov ntsuas tam sim no qis, feem ntau yog txij li 0.5A txog 125A. Thaum pom qhov txhaum, lawv txiav lub voj voog cia li, yog li tiv thaiv kev puas tsuaj rau cov khoom siv thiab txo qhov kev pheej hmoo ntawm hluav taws.

Cov cuab yeej hluav taws xob me me (MCBs) ua haujlwm ntawm ob qho tib si thermal thiab magnetic tripping principles. Lub thermal tripping mechanism siv los teb rau cov xwm txheej overload, thaum lub magnetic tripping mechanism siv los teb rau cov xwm txheej luv luv. Qhov kev ua haujlwm ob npaug no ua kom ntseeg tau tias cov cuab yeej hluav taws xob me me tuaj yeem muab kev tiv thaiv txhim khu kev qha rau ntau yam hluav taws xob. Tsis tas li ntawd, cov cuab yeej hluav taws xob me me yooj yim rov pib dua tom qab tripping, uas yog tus neeg siv-phooj ywg thiab tso cai rau kev ua haujlwm zoo hauv kev siv txhua hnub.

MCCB yog dab tsi?

Cov Molded Case Circuit Breakers (MCCBs) yog cov khoom siv ruaj khov dua uas feem ntau ntsuas los ntawm 100A txog 2500A. MCCBs feem ntau siv rau hauv kev lag luam thiab kev lag luam uas muaj hluav taws xob ntau. Zoo ib yam li MCBs, MCCBs tiv thaiv kev thauj khoom ntau dhau thiab luv luv circuits, tab sis lawv muaj cov yam ntxwv siab dua, suav nrog kev hloov kho qhov chaw mus ncig thiab lub peev xwm los tswj cov hluav taws xob ntau dua.

Cov khoom siv hluav taws xob uas muaj pwm (MCCBs) muaj cov qauv pwm uas muaj cov khoom sab hauv, ua rau muaj kev ruaj khov thiab kev tiv thaiv los ntawm cov yam ntxwv ib puag ncig. Lawv kuj feem ntau muaj cov yam ntxwv ntxiv xws li kev tiv thaiv qhov txhaum hauv av thiab kev sib txuas lus, uas ua rau lawv tuaj yeem koom ua ke rau hauv cov kab ke hluav taws xob nyuaj dua. Qhov no ua rau MCCBs zoo tagnrho rau kev siv hauv cov chaw tsim khoom, cov chaw khaws ntaub ntawv, thiab cov tsev lag luam loj.

Qhov Txawv Tseem Ceeb Ntawm MCB thiab MCCB

1. Qhov ntsuas tam sim no: Qhov sib txawv tseem ceeb tshaj plaws ntawm Miniature Circuit Breaker (MCB) thiab Molded Case Circuit Breaker (MCCB) yog lawv qhov ntsuas tam sim no. MCBs tsim nyog rau cov ntawv thov tam sim no qis (txog li 125A), thaum MCCBs tsim nyog rau cov ntawv thov tam sim no siab (100A txog 2500A).

2. Daim Ntawv Thov: MCBs feem ntau yog siv rau hauv kev siv hauv tsev thiab kev lag luam me, thaum MCCBs yog tsim los rau kev siv hauv kev lag luam thiab kev lag luam hnyav.

3. Lub Thawv Fais Fab: MCB feem ntau muaj qhov chaw teeb tsa ruaj khov, thaum MCCB feem ntau muaj qhov chaw teeb tsa hloov kho tau, tso cai rau kev hloov kho raws li qhov xav tau tshwj xeeb.

4. Qhov Loj thiab Tsim: Cov khoom siv hluav taws xob me me (MCBs) me dua thiab me dua, ua rau lawv zoo tagnrho rau cov chaw uas muaj qhov chaw txwv. Qhov sib txawv, cov khoom siv hluav taws xob molded case (MCCBs) loj dua, ruaj khov dua, thiab tsim los tswj cov khoom siv hluav taws xob ntau dua.

5. Tus nqi: Feem ntau hais lus, MCBs muaj txiaj ntsig zoo dua rau cov ntawv thov uas tsis muaj zog, thaum MCCBs feem ntau kim dua vim lawv cov yam ntxwv siab heev thiab cov qib siab dua.

Xaus lus

Hauv kev xaus, ob qho tib si MCCBs thiab MCBs yog cov khoom tseem ceeb hauv cov tshuab hluav taws xob, thiab lawv txhua tus ua lub luag haujlwm sib txawv nyob ntawm qhov xav tau ntawm daim ntawv thov. Kev nkag siab txog qhov sib txawv ntawm ob lub cuab yeej no yog qhov tseem ceeb rau kev xaiv cov kev daws teeb meem tiv thaiv hluav taws xob kom raug. Txawm hais tias rau kev siv hauv tsev lossis kev lag luam, kev ua kom siv MCCBs thiab MCBs kom raug yog qhov tseem ceeb rau kev tswj hwm kev nyab xeeb hluav taws xob, kev ua haujlwm zoo, thiab kev ntseeg siab. Raws li thev naus laus zis txuas ntxiv hloov zuj zus, lub luag haujlwm ntawm cov circuit breakers no yuav txuas ntxiv ua ib feem tseem ceeb ntawm kev ua haujlwm nyab xeeb ntawm cov tshuab hluav taws xob thoob plaws ntiaj teb.