Hauv txhua lub tshuab hluav taws xob, kev nyab xeeb thiab kev tiv thaiv yuav tsum yog qhov tseem ceeb tshaj plaws. Qhov no yog qhov uasMCCB or Moulded Case Circuit Breakerlos rau hauv. Cov no yog cov khoom tseem ceeb hauv kev tiv thaiv cov khoom siv hluav taws xob, cov voj voog thiab cov xov hlau los ntawm overcurrent thiab luv luv circuits, tiv thaiv kev phom sij hluav taws xob thiab kev puas tsuaj ntawm cov khoom siv.
Cov MCCByog cov khoom siv hluav taws xob niaj hnub uas muaj ntau yam zoo dua li cov qauv qub thiab cov qub duacov khoom siv hluav taws xobHauv tsab blog no, peb yuav tshawb nrhiav cov txiaj ntsig ntawm kev siv MCCBs hauv cov kab ke hluav taws xob thiab lawv tuaj yeem pab ua kom muaj kev ua haujlwm hluav taws xob txhim khu kev qha thiab muaj kev nyab xeeb li cas.
1. Muaj peev xwm tawg tau siab
MCCBs muaj peev xwm tawg tau siab, uas yog qhov siab tshaj plaws ntawm cov hluav taws xob uas lawv tuaj yeem cuam tshuam tau zoo. MCCBs muaj peev xwm tawg tau siab thiab tuaj yeem tswj cov hluav taws xob luv luv txog li kaum tawm kiloamperes (kA). Qhov no txhais tau tias lawv tuaj yeem cais cov teeb meem sai sai thiab tiv thaiv kev puas tsuaj rau cov chav tsev thiab cov khoom siv hauv qab. Lub peev xwm tawg tau siab kuj txhais tau tias MCCBs tuaj yeem tswj cov khoom thauj loj dua, ua rau cov kab ke hluav taws xob ua haujlwm ntawm cov qib fais fab siab dua.
2. Kev teeb tsa txoj kev yooj yim
Lub MCCB muaj cov chaw teeb tsa hloov kho tau uas ua rau nws raug teeb tsa rau cov kev xav tau tshwj xeeb. Cov chaw teeb tsa no suav nrog cov chav thermal magnetic trip units mus rau cov chav hluav taws xob trip units thiab lawv tso cai rau MCCB teb rau ntau yam xwm txheej overcurrent xws li luv luv lossis overload. Siv MCCB, cov neeg siv tuaj yeem kho cov chaw teeb tsa kom muab qib kev tiv thaiv xav tau thiab ua kom zoo dua ntawm lawv lub cev hluav taws xob.
3. Kev tiv thaiv thermal magnetic
MCCBs muab kev tiv thaiv thermal thiab magnetic ua ke. Cov khoom tiv thaiv thermal trip teb rau overloads, thaum cov khoom tiv thaiv magnetic teb rau luv luv circuits. Lub tshuab trip teb tau zoo heev thiab yuav ua haujlwm sai raws li qhov xwm txheej overcurrent. Thaum MCCB raug ntsia, lub kaw lus hluav taws xob tau txais txiaj ntsig los ntawm kev tiv thaiv siab heev tiv thaiv kev puas tsuaj thermal thiab magnetic.
4. Tsim qauv me me
Ib qho zoo heev ntawm qhovMCCByog nws tus qauv me me. Lawv siv qhov chaw tsawg dua li cov circuit breakers qub thiab tuaj yeem raug bolted lossis clipped rau DIN rail, txuag qhov chaw vaj huam sib luag muaj nqis. Tus qauv me me kuj ua rau MCCB sib dua, txo cov nqi xa khoom thiab ua rau nws yooj yim dua rau kev tuav thiab teeb tsa.
5. Kev txhim kho kev soj ntsuam thiab kev sib txuas lus
Cov MCCB niaj hnub no siv cov thev naus laus zis microprocessor siab heev, ua rau lawv sib txuas lus nrog lwm cov khoom siv thiab cov kab ke. MCCBs saib xyuas thiab sau cov kev ntsuas xws li tam sim no, voltage, fais fab, thiab kev siv zog, pab cov neeg teb xov tooj thiab cov engineers ntsuas kev noj qab haus huv ntawm cov kab ke hluav taws xob. Tsis tas li ntawd, kev sib txuas lus ua rau MCCBs sib txuas lus nrog kev saib xyuas, kev tswj hwm thiab kev ua haujlwm tsis siv neeg, txhim kho kev tswj hwm thiab kev ua haujlwm ntawm cov kab ke hluav taws xob.
6. Rugged thiab txhim khu kev qha
MCCBs yog tsim los kom tiv taus qhov chaw ib puag ncig hnyav thiab tuaj yeem ua haujlwm hauv qhov kub thiab txias txij li -25 ° C txog + 70 ° C. Lawv yog ua los ntawm cov khoom siv zoo uas tiv taus kev hnav tshuaj lom neeg thiab kev kho tshuab, xws li polycarbonate, polyester thiab ceramic. Tsis tas li ntawd, MCCBs muaj sia nyob ntev heev, kav ntev li 10 txog 20 xyoo nyob ntawm lawv siv thiab kev saib xyuas.
7. Daim ntawv thov ntau yam
MCCBs muaj ntau yam kev siv, txij li qhov hluav taws xob tsawg mus rau qhov hluav taws xob siab. Lawv yog ib feem tseem ceeb ntawm kev tiv thaiv thiab tswj cov cav, cov generators, transformers thiab lwm yam khoom siv hluav taws xob tseem ceeb. MCCBs kuj yog thawj kab tiv thaiv rau kev tsim cov tshuab hluav taws xob, cov chaw hloov pauv, kev lag luam hnyav thiab cov chaw tsim hluav taws xob.
xaus lus
MCCBs yog cov cuab yeej hluav taws xob txhim khu kev qha, ua haujlwm tau zoo thiab muaj kev nyab xeeb uas ua lub luag haujlwm tseem ceeb hauv cov tshuab hluav taws xob. Lawv muab kev tiv thaiv tsim nyog rau cov khoom siv, cov xov hlau thiab cov neeg ua haujlwm tiv thaiv kev phom sij thiab kev puas tsuaj los ntawm overcurrents thiab luv luv circuits. MCCB qhov chaw teeb tsa siab heev, kev tiv thaiv thermal magnetic, tsim me me, cov yam ntxwv saib xyuas, kev ruaj khov thiab kev hloov pauv ua rau nws yog qhov kev xaiv zoo tshaj plaws rau txhua lub tshuab hluav taws xob. Txhawm rau kom ntseeg tau tias kev ua haujlwm hluav taws xob txhim khu kev qha thiab muaj kev nyab xeeb, hloov mus rau MCCBs thiab paub txog cov txiaj ntsig uas lawv muab.
Lub sijhawm tshaj tawm: Plaub Hlis-10-2023