Yuav ua li cas xaiv thiab kho lub Circuit Court breaker

Thaum nws los txog rau Circuit Court breakers, feem ntau cov neeg tsim hluav taws xob yuav tsum paub txog lawv. Txawm li cas los xij, thaum nws los txog rau kev xaiv thiab kev hloov ntawm cov hluav taws xob hluav taws xob, ntau tus neeg tsim hluav taws xob yuav tsis quav ntsej txog qhov no, thiab qee cov novices hauv kev tsim hluav taws xob tseem tsis paub ntau dua. Peb yog tag nrho cov tsis siv neeg Circuit Court breaker, raws li lub npe qhia, yog siv los disconnect lub Circuit Court ntawm lub ntsuas, nws yog tsuas yog siv nyob rau hauv kev sib txuas lus thiab siv hluav taws xob, nyob rau hauv lub tis txuas yog qhov tseem ceeb, yuav zam dhau voltage load los ntawm Circuit Court puas. , khoom siv hluav taws xob puas tsuaj thiab lwm yam teeb meem. Thaum qhov tam sim no loj dhau, lossis muaj qhov luv luv Circuit Court, undervoltage thiab lwm yam tsis raug, nws yuav txiav tawm Circuit Court kom muaj kev nyab xeeb. Muaj ntau cov qauv tsis sib xws ntawm Circuit Court breaker, thaum peb xaiv Circuit Court breaker, peb yuav tsum xaiv hom kev siv raws li cov kev siv tshwj xeeb, xaiv qhov ntsuas ua haujlwm voltage, ntsuas tam sim no, teeb tsa tam sim no ntawm tripper thiab lwm yam, xaiv cov yam ntxwv tiv thaiv. nrog rau kev tiv thaiv tus yam ntxwv nkhaus muab los ntawm cov qauv khoom, thiab yuav tsum tau xyuas qhov luv luv-circuit yam ntxwv thiab rhiab heev coefficient. Yog li, yuav ua li cas thiaj li yuav tsum tau xaiv thiab hloov kho Circuit Court breaker? Cov kab lus hauv qab no yuav qhia rau koj paub meej, thiab tom qab nyeem tsab xov xwm, kuv vam tias yuav muab qee qhov kev siv rau feem ntau ntawm cov neeg tsim hluav taws xob.
01 Hom Circuit Court breakers thiab lawv cov haujlwm
(1) Ncej hom Circuit Court breaker (ACB)
Ncej Circuit Court breaker, tseem hu ua universal Circuit Court breaker, tag nrho nws cov khoom yog ntsia rau hauv ib tug insulated hlau thav duab, feem ntau qhib, tuaj yeem ntsia tau nrog ntau yam khoom siv, nws yooj yim dua los hloov cov kev sib cuag thiab cov khoom, thiab feem ntau yog siv rau hauv cov khoom siv. main switch ntawm lub hwj chim kawg. Muaj ob peb hom overcurrent trippers, xws li electromagnetic, hluav taws xob thiab ntse trippers. Lub Circuit Court breaker muaj plaub theem ntawm kev tiv thaiv: ncua ntev, ncua sij hawm luv luv, instantaneous thiab av txhaum, thiab teeb tsa tus nqi ntawm txhua qhov kev tiv thaiv yog kho nyob rau hauv ib tug tej yam raws li nws lub plhaub theem.
Lub thav duab Circuit Court breaker yog tsim rau AC 50Hz, ntsuas voltage 380V, 660V, ntsuas tam sim no ntawm 200A-6300A nyob rau hauv lub network faib, feem ntau yog siv los faib hluav taws xob hluav taws xob thiab tiv thaiv kab thiab cov khoom siv hluav taws xob los ntawm overload, undervoltage, luv Circuit Court , ib-theem grounding thiab lwm yam txhaum. Raws li ib txwm muaj, nws tuaj yeem siv rau kev hloov pauv tsis tu ncua ntawm kab. Cov hluav taws xob hluav taws xob qis dua 1250A tuaj yeem siv los tiv thaiv lub cev muaj zog ntawm overload thiab luv luv Circuit Court nrog AC 50Hz voltage ntawm 380V.
Ncej Circuit Court breakers kuj feem ntau siv nyob rau hauv transformer 400V sab qhov hluav taws xob lub ntsiab keyboards, tsheb thauj mus los keyboards, high-muaj peev xwm feeder keyboards thiab loj lub cev muaj zog tswj keyboards.
(2) Moulded Case Circuit Breaker (MCCB)
Cov ntaub ntawv molded Circuit Court breaker, tseem hu ua cov cuab yeej hluav taws xob Circuit Court breaker, yog nyob rau hauv lub plhaub yas nrog rau sab nraud ntawm lub hauv paus hlau davhlau ya nyob twg, lub arc extinguisher, tripper thiab kev khiav hauj lwm mechanism. Cov kev sib txuas sib txuas, undervoltage trippers thiab shunt trippers feem ntau yog cov qauv, compact hauv cov qauv, feem ntau tsis xav txog kev saib xyuas, thiab tsim nyog rau kev tiv thaiv keyboards siv los ua cov ceg ntoo. Pwm rooj plaub Circuit Court breakers feem ntau muaj cov thermomagnetic mus txawv tebchaws, thaum loj molded rooj plaub Circuit Court breakers yog nruab nrog ib tug solid-state mus txawv tebchaws sensor.
Muaj ob hom overcurrent trippers ntawm molded case Circuit Court breakers: electromagnetic thiab hluav taws xob, electromagnetic molded case Circuit Court breaker yog ib qho tsis xaiv Circuit Court breaker, thiab tsuas muaj ob hom kev tiv thaiv: ncua ntev thiab instantaneous, thiab hluav taws xob molded rooj plaub Circuit Court. breaker muaj plaub txoj haujlwm tiv thaiv: ncua ntev, ncua luv, instantaneous thiab grounding txhaum. Qee cov khoom tshiab ntawm cov khoom siv hluav taws xob molded rooj plaub Circuit Court breakers kuj muaj thaj tsam-xaiv kev cuam tshuam kev ua haujlwm.
Pwm cov ntaub ntawv Circuit Court breakers feem ntau yog siv rau kev faib feeder tswj thiab kev tiv thaiv, tsawg-voltage sab qhov hluav taws xob lub ntsiab hloov ntawm me me transformer, lub hwj chim faib davhlau ya nyob twg tswj, thiab kuj yuav siv tau rau lub hwj chim hloov ntawm ntau lawm machinery.
(3) Miniature Circuit Breaker (MCB)
Miniature Circuit Court breaker yog cov khoom siv dav dav siv dav siv hauv kev qhia txog lub tsev hluav taws xob hluav taws xob faib khoom siv. Nws yog siv rau ib-theem thiab peb-theem luv luv Circuit Court, overload, overvoltage thiab lwm yam kev tiv thaiv hauv qab 125A, nrog rau ib tug ncej 1P, ob-ncej 2P, peb-ncej 3P, thiab plaub-ncej 4P.
Lub tshuab hluav taws xob me me yog tsim los ntawm kev khiav hauj lwm mechanism, ib qho kev sib cuag, cov cuab yeej tiv thaiv (ntau yam trippers), arc extinguishing system, thiab lwm yam. Lub ntsiab tiv tauj yog manually ua los yog hluav taws xob kaw. Tom qab qhov kev sib cuag tseem ceeb raug kaw, qhov kev mus ncig dawb mechanism kaw qhov kev sib cuag tseem ceeb hauv txoj haujlwm kaw. Lub coil ntawm lub overcurrent tripper thiab lub thermal caij ntawm lub thermal tripper yog txuas nrog nyob rau hauv series nrog lub ntsiab Circuit Court, thiab lub coil ntawm undervoltage tripper thiab lub hwj chim mov yog txuas nyob rau hauv parallel.
Hauv kev tsim hluav taws xob ntawm cov tsev tsim hluav taws xob, cov hluav taws xob me me feem ntau yog siv rau overload, luv luv Circuit Court, overcurrent, poob ntawm voltage, undervoltage, grounding, to, tsis siv neeg switching ntawm dual fais fab mov thiab kev tiv thaiv thiab kev khiav hauj lwm ntawm infrequent pib ntawm lub cev muaj zog.
▶ 02 Cov txheej txheem tsis sib xws ntawm Circuit Court breaker
(1) Rated ua hauj lwm voltage Ue
Qhov ntsuas hluav taws xob ua haujlwm yog hais txog qhov nominal voltage ntawm lub Circuit Court breaker, uas tuaj yeem ua haujlwm tsis tu ncua raws li kev siv ib txwm siv thiab kev ua haujlwm.
Tuam Tshoj tau hais tias nyob rau theem voltage ntawm 220kV thiab qis dua, 1.15 npaug ntawm qhov ntsuas hluav taws xob ntawm qhov system yog qhov siab tshaj plaws ua haujlwm voltage, thiab qhov voltage ntawm 330kV thiab siab dua yog 1.1 npaug ntawm qhov ntsuas hluav taws xob raws li qhov siab tshaj plaws ua haujlwm voltage. Lub Circuit Court breaker tuaj yeem tswj cov rwb thaiv tsev ntawm qhov siab tshaj plaws kev ua haujlwm ntawm qhov system, thiab tuaj yeem raug kaw thiab tawg raws li qhov xwm txheej.
(2) Rated tam sim no Hauv
Qhov ntsuas tam sim no yog hais txog qhov tam sim no uas tuaj yeem dhau los ntawm lub tripper rau lub sijhawm ntev ntawm qhov ntsuas kub ntawm 40 degree lossis tsawg dua. Nyob rau hauv cov ntaub ntawv ntawm Circuit Court breakers nrog adjustable trippers, qhov no yog lub siab tshaj plaws tam sim no uas yuav kis tau los ntawm trippers rau lub sij hawm ntev.
Thaum siv ntawm qhov kub thiab txias ntawm ntau tshaj 40 degree, tab sis tsis siab tshaj 60 degree, nws raug tso cai ua hauj lwm nrog ib tug txo load rau lub sij hawm ntev.
(3) Tus nqi tam sim no ntawm lub overload tripper yog Ir
Yog tias qhov tam sim no tshaj qhov nqi tam sim no ntawm tripper Ir, lub Circuit Court breaker yuav mus nrog ncua sijhawm. Nws kuj sawv cev rau qhov siab tshaj plaws tam sim no uas lub Circuit Court breaker tuaj yeem tiv taus thaum nws tsis yog tripped. Tus nqi no yuav tsum siab tshaj qhov siab tshaj qhov load tam sim no Ib, tab sis tsawg dua qhov siab tshaj plaws tam sim no Iz rau kab.