Imisebenzi kunye nomahluko phakathi kwe-MCB kunye ne-MCCB

UkuqondaI-MCCBkwayeI-MCB: Umahluko oPhambili kunye nezicelo

Kwimiba yobunjineli bombane kunye nokukhuselwa kwesekethe, amagama amabini asetyenziswa rhoqo: i-MCB (i-miniature circuit breaker) kunye ne-MCCB (i-molded case circuit breaker). Zombini ezi zixhobo zenza umsebenzi obalulekileyo wokukhusela iisekethe kwi-overloads kunye ne-short circuits, kodwa zahlukile kakhulu kuyilo lwazo, ukusetyenziswa kwazo, kunye nobuchule bokusebenza. Eli nqaku lijolise ekucaciseni umahluko phakathi kwee-MCB kunye nee-MCCB, ukukunceda uqonde ukuba nini kwaye kutheni kufuneka usebenzise nganye.

Yintoni i-MCB?

I-miniature circuit breaker (MCB) sisixhobo esincinci esisetyenziselwa ukukhusela iisekethe zombane kwi-overloads kunye nee-short circuits. Ii-MCB zihlala zisetyenziswa kwiindawo zokuhlala kunye nezorhwebo ezine-current ratings ephantsi, ngokuqhelekileyo ukusuka kwi-0.5A ukuya kwi-125A. Xa i-current idlula kwinqanaba elimiselweyo, i-MCB iyakhubeka ngokuzenzekelayo, ithintele umonakalo onokubakho kwisekethe nakwizixhobo ezixhunyiweyo.

IiMiniature circuit breakers (iiMCB) zibonelela ngamaxesha okuphendula ngokukhawuleza, nto leyo ibalulekileyo ekunciphiseni umonakalo obangelwa ziimpazamo. Zikwanokusetwa kwakhona, oko kuthetha ukuba xa impazamo isusiwe, iMCB inokuphinda isetwe ngokulula ngaphandle kokutshintshwa. Olu phawu lwenza iiMCB zibe lukhetho oludumileyo lokukhusela iisekethe zokukhanyisa, iindawo zombane, kunye nezixhobo ezincinci.

Yintoni i-MCCB?

Kwelinye icala, ii-molded case circuit breakers (ii-MCCB) ziqinile kwaye zenzelwe ukusetyenziswa kwamandla aphezulu, zihlala ziqala kwi-100A ukuya kwi-2500A. Ii-MCCB zisetyenziswa kakhulu kwiindawo zoshishino nezorhwebo ezinemithwalo yombane enzima. Zibonelela ngokhuseleko lokugqithisa, i-short-circuit, kunye ne-ground-fault, nto leyo ezenza zifaneleke kwiintlobo ngeentlobo zezicelo.

IiMolded case circuit breakers (MCCBs) zinezicwangciso zokuhamba ezihlengahlengiswayo, ezivumela abasebenzisi ukuba balungelelanise umgangatho wokhuseleko kwiimfuno ezithile zenkqubo yombane. Olu phawu luluncedo ngakumbi kwiindawo zoshishino apho iimfuno zangoku zezixhobo zinokwahluka. IiMCCB zihlala ziquka iimpawu eziphambili ezifana nokubeka esweni kude kunye nonxibelelwano, ukuphucula ukusebenza kwazo kwiinkqubo zombane ezintsonkothileyo.

Umahluko ophambili phakathi kwe-MCB kunye ne-MCCB

1. Uvavanyo lwangoku**: Umahluko obalulekileyo phakathi kwe-MCB kunye ne-MCCB luvavanyo lwabo lwangoku. I-MCB ifanelekile kwiisicelo zamandla aphantsi (ukuya kuthi ga kwi-125A), ngelixa i-MCCB ifanelekile kwiimfuno zamandla aphezulu (100A ukuya kwi-2500A).

2. Ukulungelelaniswa: Ii-MCB zinezicwangciso zokuhamba ezimiselweyo, ngelixa ii-MCCB zibonelela ngezicwangciso zokuhamba ezihlengahlengiswayo, nto leyo evumela ukuguquguquka okukhulu ekukhuseleni isekethe.

3. Ukusetyenziswa: Ii-MCB zisetyenziswa kakhulu kwiindawo zokuhlala kunye nezorhwebo ezilula, ngelixa ii-MCCB zenzelwe ukusetyenziswa kwimizi-mveliso kunye nezorhwebo ezinzima, ezibandakanya imithwalo emikhulu kunye neenkqubo ezintsonkothileyo.

4. Ubungakanani kunye noYilo: Ii-Miniature circuit breakers (ii-MCB) zihlala zincinci kwaye zincinci kunee-molded case circuit breakers (ii-MCCB), nto leyo eyenza kube lula ukuzifaka kwiindawo ezilinganiselweyo. Ii-Molded case circuit breakers (ii-MCCB) zikhulu, zifuna indawo engakumbi, kwaye zihlala zifakelwa kwiindawo zokudibanisa izixhobo.

5. Ixabiso: Ii-Miniature circuit breakers (ii-MCB) zihlala zibiza kancinci kunee-molded case circuit breakers (ii-MCCB), nto leyo eyenza zibe sisisombululo esingabizi kakhulu kwizicelo ezincinci. Nangona kunjalo, ukusebenza kwazo okwandileyo kunye nokusebenza kwazo kuzenza zibe lutyalo-mali olufanelekileyo kwiindawo ezinkulu nezinzima ngakumbi.

Isishwankathelo

Ngamafutshane, ii-miniature circuit breakers (ii-MCB) kunye nee-molded case circuit breakers (ii-MCCB) zombini zidlala indima ebalulekileyo ekukhuseleni iisekethe, kodwa usetyenziso lwazo kunye nobuchule bazo bahluka kakhulu. Ukuqonda la mahluko kubalulekile ekukhetheni isixhobo esifanelekileyo kwiimfuno zakho ezithile. Nokuba ukhusela isekethe encinci yokuhlala okanye inkqubo enkulu yemizi-mveliso, ukukhetha i-circuit breaker efanelekileyo kuqinisekisa ukhuseleko, ukuthembeka, kunye nokusebenza kakuhle kwezixhobo zakho zombane. Soloko uqhagamshelana nosomashishini ombane okanye unjineli wombane ofanelekileyo ukuze amisele isisombululo esifanelekileyo kwimeko yakho ethile.