breaker:
Lub Circuit Court breaker yog hais txog lub tshuab hloov hluav taws xob uas tuaj yeem ua, nqa thiab tawg tam sim no nyob rau hauv ib puag ncig Circuit Court tej yam kev mob, thiab kev coj ua, nqa thiab tawg tam sim no nyob rau hauv cov xwm txheej txawv txav hauv lub sijhawm.Circuit Court breakers tau muab faib ua high-voltage Circuit Court breakers thiab low-voltage circuit breakers raws li qhov kev thov, thiab cov ciam teb ntawm high-voltage thiab tsawg voltage yog kuj vague.Feem ntau ntau tshaj 3kV yog hu ua cov khoom siv hluav taws xob siab.
Circuit Court breakers tuaj yeem siv los faib hluav taws xob hluav taws xob, pib asynchronous motors tsis tu ncua, tiv thaiv cov kab hluav taws xob thiab lub cev muaj zog, thiab txiav tawm Circuit Court nyob rau hauv cov xwm txheej hnyav dhau, luv Circuit Court, undervoltage thiab lwm yam txhaum.Nws txoj haujlwm yog sib npaug ntawm kev sib txuas ntawm lub fuse hloov thiab ib qho overheat thiab underheat relay.Ntxiv mus, nws yog feem ntau tsis tsim nyog los hloov qhov chaw tom qab tawg qhov txhaum tam sim no.Nws tau dav siv tam sim no.
Kev faib hluav taws xob yog qhov txuas tseem ceeb heev hauv kev tsim, kev sib kis thiab kev siv hluav taws xob.Lub zog faib hluav taws xob muaj xws li transformers thiab ntau yam khoom siv hluav taws xob siab thiab qis.Tsawg voltage Circuit Court breakers yog cov khoom siv hluav taws xob uas muaj ntau yam kev siv thiab ntau yam kev siv.
txoj cai ua haujlwm:
Lub tshuab hluav taws xob feem ntau yog tsim los ntawm kev sib txuas lus, lub tshuab hluav taws xob tua hluav taws xob, lub tshuab ua haujlwm, kev tso tawm, thiab lub casing.
Nyob rau hauv qhov kev tshwm sim ntawm ib tug luv luv Circuit Court, lub magnetic teb generated los ntawm lub loj tam sim no (feem ntau 10 mus rau 12 lub sij hawm) overcomes cov tshuaj tiv thaiv quab yuam lub caij nplooj ntoos hlav, lub tso tawm rub lub khiav hauj lwm mechanism los ua, thiab hloov mus rau instantaneously.Thaum overloaded, tam sim no nce, lub tshav kub tiam nce, thiab lub bimetal deforms mus rau ib tug tej yam kev pab cuam los txhawb lub zog ntawm lub mechanism (qhov ntau dua tam sim no, lub sij hawm luv luv).
Rau hom hluav taws xob, lub transformer yog siv los sau qhov loj ntawm txhua theem tam sim no thiab sib piv nrog cov nqi teev.Thaum qhov tam sim no txawv txav, microprocessor xa cov teeb liab los ua kom cov hluav taws xob tso tawm tsav lub tshuab ua haujlwm ua haujlwm.
Lub luag haujlwm ntawm Circuit Court breaker yog txiav tawm thiab txuas lub load Circuit Court, txiav tawm qhov txhaum Circuit Court, tiv thaiv kev sib tsoo ntawm kev nthuav dav, thiab ua kom muaj kev nyab xeeb.Lub high-voltage Circuit Court breaker yuav tsum tau tawg lub arc ntawm 1500V thiab tam sim no ntawm 1500-2000A.Cov arcs no tuaj yeem ncav cuag 2m thiab txuas ntxiv hlawv.Yog li ntawd, arc extinguishing yog ib qho teeb meem uas high-voltage circuit breakers yuav tsum daws.
Lub hauv paus ntsiab lus ntawm arc extinguishing yog tsuas yog kom txias lub arc kom tsis muaj zog thermal dissociation.Ntawm qhov tod tes, arc tshuab elongates lub arc, ntxiv dag zog rau cov recombination thiab diffusion ntawm charged hais, thiab nyob rau tib lub sij hawm tshuab tshem tawm cov nqi hais nyob rau hauv lub arc qhov sib txawv, sai sai restore lub dielectric zog.
Tsis tshua muaj hluav taws xob +, tseem hu ua tsis siv neeg hloov pauv huab cua, tuaj yeem siv los hloov cov khoom siv hluav taws xob rau thiab tawm, thiab tseem tuaj yeem siv los tswj cov motors uas pib tsis tshua muaj.Nws txoj haujlwm yog sib npaug rau cov lej ntawm ib feem lossis tag nrho cov haujlwm ntawm rab riam hloov, overcurrent relay, voltage poob relay, thermal relay thiab leakage protector, thiab yog ib qho tseem ceeb tiv thaiv cov khoom siv hauv cov khoom siv hluav taws xob tsawg.
Tsawg-voltage Circuit Court breakers muaj ntau yam kev tiv thaiv kev ua haujlwm (overload, luv luv-circuit, under-voltage tiv thaiv, thiab lwm yam), adjustable tus nqi, siab tawg peev xwm, yooj yim khiav lag luam, kev nyab xeeb thiab lwm yam zoo, yog li ntawd lawv yog dav siv.Lub hauv paus ntsiab lus thiab kev ua haujlwm Lub tshuab hluav taws xob qis hluav taws xob yog tsim los ntawm kev ua haujlwm, kev sib cuag, cov khoom siv tiv thaiv (ntau qhov kev tso tawm), thiab arc extinguishing system.
Cov kev sib cuag tseem ceeb ntawm Circuit Court breaker voltage yog manually ua los yog kaw hluav taws xob.Tom qab cov kev sib cuag tseem ceeb raug kaw, qhov kev mus ncig dawb mechanism kaw cov neeg tseem ceeb hauv txoj haujlwm kaw.Lub kauj ntawm lub overcurrent tso tawm thiab lub thermal caij ntawm lub thermal tso tawm yog txuas nrog nyob rau hauv series nrog lub ntsiab Circuit Court, thiab lub kauj ntawm lub undervoltage tso tawm yog txuas nyob rau hauv parallel nrog lub hwj chim mov.Thaum lub Circuit Court luv luv los yog hnyav dhau, lub armature ntawm overcurrent tso tawm yog rub rau hauv, kom lub free release mechanism ua hauj lwm, thiab lub ntsiab tiv tauj disconnects lub ntsiab Circuit Court.Thaum lub Circuit Court yog overloaded, lub thermal caij ntawm lub thermal mus txawv tebchaws unit yuav sov, khoov lub bimetal, yog li thawb lub free mus txawv tebchaws mechanism ua.Thaum lub Circuit Court yog undervoltage, lub armature ntawm lub undervoltage tso tawm.Thiab lub free mus txawv tebchaws mechanism yog actuated.Ib qho khoom siv mus txawv tebchaws yog siv rau kev tswj chaw taws teeb.Thaum lub sijhawm ua haujlwm ib txwm, nws cov kauj yog de-energized.Thaum yuav tsum tau tswj kev deb, nias lub pob pib kom lub zog ntawm lub kauj.
Post lub sij hawm: Oct-15-2022