Umehluko phakathi kwe-MCB ne-MCCB

Uma kukhulunywa ngama-circuit breaker, izinketho ezimbili ezivame ukusetshenziswa yi-MCB kanye ne-MCCB. Nakuba zombili zisetshenziselwa ukuvikela izinhlelo zikagesi ekugcwaleni ngokweqile kanye nama-short circuit, kunemehluko omkhulu phakathi kwale mikhiqizo emibili.

I-Miniature circuit breaker (I-MCB), njengoba igama lisho, iyi-compact multi-function circuit breaker. Isetshenziswa kabanzi ezindaweni ezahlukene njengezimboni, ezentengiselwano, izakhiwo eziphakeme, kanye nezindawo zokuhlala. Ama-MCB aklanyelwe ukuhlinzeka ngokuvikelwa kwamayunithi okusabalalisa ama-terminal kagesi ezakhiweni. Kunezinhlobo eziningi kanye nobuningi bemikhiqizo ye-circuit breaker, efanelekile ukusetshenziswa okuhlukile.

Enye yezinzuzo eziyinhloko ze-MCB yikhono layo lokusingatha izinhlobo eziningi zamapharamitha kagesi. Ifanelekela ukuvikelwa kwemigqa ngokweqile kanye ne-short-circuit yemigqa ene-AC 50/60Hz rated voltage engu-230/400V kanye ne-current rated current efika ku-63A. Ngaphezu kwalokho, ama-circuit breaker amancane angasetshenziswa futhi ekushintsheni imigqa ngokungavamile ngaphansi kwezimo ezivamile. Lokhu kuguquguquka kuwenza afaneleke ezinhlelweni eziningi zikagesi.

Ngokolunye uhlangothi,ama-circuit breaker e-molded case (I-MCCB) zisetshenziswa kakhulu ezinhlelweni zokusatshalaliswa kwamandla aphansi kanye nezifunda zokuvikela izimoto. Ihlinzeka ngokuvikelwa kokulayisha ngokweqile kanye nezifunda ezimfushane. Isici esiyinhloko esihlukanisayo se-MCCB yi-casing yayo yepulasitiki, esebenza njengesivikelo futhi ihlukanise abaqhubi kanye nezingxenye zensimbi ezisekelwe phansi. Ngenxa yokuthembeka kwayo nokuzinza, ama-molded case circuit breakers asetshenziswe kabanzi ezimbonini ezahlukene.

Nakuba zombili i-MCB ne-MCCB ziyiziphuli zesekethe, kukhona umehluko omkhulu phakathi kwazo. Okokuqala, zinemingcele ehlukene kagesi neyemishini. I-MCB ifanele izintambo ezifika kumamitha-skwele ayi-10, kuyilapho i-MCCB ingaxhuma izintambo ezijiyile, njengezintambo ezingaphezu kwamamitha-skwele angama-35. Lokhu kwenza i-MCCB ikwazi ukusingatha amandla aphezulu kanye nemisinga.

Omunye umehluko ukuthi zixhunywe kanjani. Ama-terminal e-molded case circuit breaker axhunywe ngamantongomane, angacindezelwa kalula futhi aqinisekise ukuthintana okuhle. Ngokuphambene nalokho, ama-MCB asebenzisa ama-terminal amancane okucindezela angaqiniswa kuphela nge-screwdriver. Lo mehluko ezindleleni zokuxhuma uthinta ikhwalithi yokucindezela kanye nokuxhumana.

Ngaphezu kwalokho, i-MCB kanye ne-MCCB zinezindawo zokusebenza ezahlukene. Ama-MCB aklanyelwe izinhlelo zokusebenza ezahlukahlukene, okwenza afaneleke ukusetshenziswa ezindaweni ezahlukene. Ngakolunye uhlangothi, i-MCCB isetshenziswa kakhulu ezinhlelweni zokusebenza zokushintsha umthamo omncane.

Ngamafuphi, yize ama-miniature circuit breaker kanye nama-molded case circuit breaker womabili esetshenziswa ukuvikela izinhlelo zikagesi, anomehluko omkhulu. I-MCB isetshenziswa kabanzi futhi inezinhlobo eziningi zezicelo, kuyilapho i-MCCB isetshenziswa kakhulu ezinhlelweni zokusabalalisa amandla aphansi kanye nama-motor protection circuits. Ahlukile kumapharamitha kagesi nawemishini, izindlela zokuxhuma kanye nendawo yokusebenza. Ukuqonda lo mehluko kuzosiza ekunqumeni ukuthi iyiphi i-circuit breaker engcono kakhulu ngezidingo zakho ezithile.