Umahluko kunye nezicelo phakathi kwe-MCB kunye ne-MCCB

UkuqondaI-MCCBkwayeI-MCBIzinto ezisisiseko zeNkqubo zoMbane

Kwicandelo lobunjineli bombane kunye nokusasazwa kwamandla, sihlala sidibana namagama athi “i-molded case circuit breaker (MCCB)” kunye nelithi “i-miniature circuit breaker (MCB)”. Zombini ezi zixhobo zidlala indima ebalulekileyo ekukhuseleni iisekethe kwi-overloads kunye nee-short circuits, kodwa ukusetyenziswa kwazo kunye noyilo lwazo ziyahluka. Eli nqaku liza kujonga nzulu iimpawu, imisebenzi, kunye nokusetyenziswa kwee-molded case circuit breakers (MCCB) kunye nee-miniature circuit breakers (MCB), kwaye ligxininise ukubaluleka kwazo ekuqinisekiseni ukhuseleko kunye nokusebenza kakuhle kombane.

Yintoni i-MCB?

I-miniature circuit breaker (MCB) sisixhobo esincinci esenzelwe ukukhusela iisekethe zombane kwi-overloads kunye nee-short circuits. Ii-MCB zihlala zisetyenziselwa iinjongo zokuhlala kunye nezorhwebo ezine-current ratings ephantsi, ngokuqhelekileyo ukusuka kwi-0.5A ukuya kwi-125A. Xa kufunyenwe impazamo, ziyayiqhawula ngokuzenzekelayo isekethe, ngaloo ndlela zithintela ukonakala kwezixhobo kwaye zinciphise umngcipheko womlilo.

Ii-Miniature circuit breakers (MCBs) zisebenza ngokwemigaqo yokukhubeka kobushushu kunye nemagnethi. Indlela yokukhubeka kobushushu isetyenziselwa ukuphendula kwiimeko zokuxinana, ngelixa indlela yokukhubeka kobushushu isetyenziselwa ukuphendula kwiimeko ze-short circuit. Olu sebenzi lubini luqinisekisa ukuba ii-miniature circuit breakers zinokubonelela ngokhuseleko oluthembekileyo kwiinkqubo ezahlukeneyo zombane. Ukongeza, ii-miniature circuit breakers kulula ukuziseta kwakhona emva kokukhubeka, nto leyo elula ukuyisebenzisa kwaye ivumela ukusebenza ngokufanelekileyo kwimihla ngemihla.

Yintoni i-MCCB?

IiMolded Case Circuit Breakers (MCCBs) zizixhobo eziqinileyo eziqhele ukulinganiselwa ukusuka kwi-100A ukuya kwi-2500A. IiMCCB zihlala zisetyenziswa kwiindawo zoshishino nezorhwebo apho imithwalo yombane inkulu khona. NjengeeMCB, iiMCCB zikhusela kwiingxaki zokugqithisa kunye nee-short circuits, kodwa zineempawu eziphambili ngakumbi, kubandakanya useto lokuhamba oluhlengahlengiswayo kunye nokukwazi ukusingatha imisinga ephezulu yempazamo.

Ii-Molded case circuit breakers (MCCBs) zinesakhiwo se-molded case esigcina izinto zangaphakathi, ezibonelela ngokuqina nokukhuselwa kwiimeko zokusingqongileyo. Zikwaquka nezinye izinto ezongezelelweyo ezifana nokukhusela iimpazamo zomhlaba kunye nokukwazi ukunxibelelana, nto leyo evumela ukuba zidityaniswe kwiinkqubo zombane ezintsonkothileyo. Oku kwenza ii-MCCB zilungele ukusetyenziswa kwizityalo zokwenza imveliso, amaziko edatha, kunye nezakhiwo ezinkulu zorhwebo.

Umahluko oPhambili phakathi kwe-MCB kunye ne-MCCB

1. Umlinganiselo wamandla: Umahluko obalulekileyo phakathi kweMinimatory Circuit Breaker (MCB) kunye neMolded Case Circuit Breaker (MCCB) ngumlinganiselo wamandla azo. Ii-MCB zifanelekile kwizicelo zamandla aphantsi (ukuya kuthi ga kwi-125A), ngelixa ii-MCCB zifanelekile kwizicelo zamandla aphezulu (100A ukuya kwi-2500A).

2. Ukusetyenziswa: Ii-MCB zisetyenziswa kakhulu kwiindawo zokuhlala nakwiindawo zorhwebo ezilula, ngelixa ii-MCCB zenzelwe ukusetyenziswa kwimizi-mveliso nakwiindawo zorhwebo ezixineneyo.

3. Indlela Yokukhubeka: Ii-MCB zihlala zinezicwangciso zokukhubeka ezizinzileyo, ngelixa ii-MCCB zihlala zinezicwangciso zokukhubeka ezihlengahlengiswayo, nto leyo evumela ukwenziwa ngokwezifiso kwiimfuno ezithile zomthwalo.

4. Ubungakanani kunye noYilo: Ii-Miniature circuit breakers (ii-MCB) zincinci kwaye zincinci, nto leyo eyenza ukuba zilungele iindawo ezixineneyo. Ngokwahlukileyo koko, ii-molded case circuit breakers (ii-MCCB) zikhulu, ziqinile, kwaye zenzelwe ukusingatha imithwalo yombane ephezulu.

5. Ixabiso: Ngokubanzi, ii-MCB zibiza kancinci kwizicelo ezisebenzisa amandla aphantsi, ngelixa ii-MCCB zibiza kakhulu ngenxa yeempawu zazo eziphambili kunye novavanyo oluphezulu.

Ukuququmbela

Ngamafutshane, zombini ii-MCCB kunye nee-MCB zizinto ezibalulekileyo kwiinkqubo zombane, kwaye nganye idlala indima eyahlukileyo ngokuxhomekeke kwiimfuno zesicelo. Ukuqonda umahluko phakathi kwezi zixhobo zimbini kubalulekile ekukhetheni isisombululo sokukhusela isetyhula esifanelekileyo. Nokuba zezokusetyenziswa emakhaya okanye kwimizi-mveliso, ukuqinisekisa ukusetyenziswa ngokufanelekileyo kwee-MCCB kunye nee-MCB kubalulekile ekugcineni ukhuseleko, ukusebenza kakuhle, kunye nokuthembeka kombane. Njengoko iteknoloji iqhubeka nokukhula, indima yezi ziphuli zesetyhula iya kuqhubeka nokuba yinxalenye ebalulekileyo yokusebenza ngokukhuselekileyo kweenkqubo zombane kwihlabathi liphela.