Ama-circuit breaker amancane (MCBs) kanye nama-case circuit breaker (MCCBs) kokubili kungamadivayisi abalulekile kumasistimu kagesi asetshenziselwa ukuvikela ekulayishweni okukhulu, amasekhethi amafushane, namanye amaphutha. Nakuba inhloso ifana, kusenomehluko phakathi kwakho kokubili ngokwamandla, izici zokukhubeka, kanye namandla okuphuka.

I-Miniature Circuit Breaker (MCB)

A I-Miniature circuit breaker (MCB)iyithuluzi likagesi elihlangene elisetshenziselwa ukuvikela amasekhethi kumasekethe amafushane nokulayishwa ngokweqile. Ivamise ukusetshenziswa ekufakweni kukagesi ezakhiweni zokuhlala nezohwebo futhi iklanyelwe ukuvikela amasekhethi angawodwana kunawo wonke amasistimu kagesi.

I-Molded case circuit breaker (MCCB)

A I-Molded Case Circuit Breaker (MCCB)iyi-breaker circuit enkulu, enamandla kakhulu ephinde isetshenziselwe ukuvikela amasekhethi kumasekethe amafushane, ukugcwala ngokweqile, namanye amaphutha. Ama-MCCB aklanyelwe amandla kagesi aphezulu kanye nezilinganiso zamanje zokuhweba, izimboni nezicelo ezinkulu zokuhlala.

Umehluko Oyinhloko Phakathi kwe-MCCB ne-MCB

Isakhiwo:Ama-MCB aminyene ngosayizi kunama-MCCB. I-MCB iqukethe umugqa we-bimetallic ogoba lapho i-current idlula umkhawulo othile, icupha i-MCB futhi ivule isekethe. Kodwa ukwakheka kwe-MCCB kuyinkimbinkimbi kakhulu. I-electromagnetic mechanism isetshenziselwa ukucupha isekethe lapho i-current idlula umkhawulo othile. Ngaphezu kwalokho, i-MCCB inokuvikelwa kazibuthe ezishisayo ukuze ivikele ekulayisheni ngokweqile kanye namasekhethi amafushane.

Amandla:Ama-MCB ajwayele ukusetshenziselwa izilinganiso eziphansi zamanje nezamandla kagesi ezakhiweni zokuhlala nezohwebo. Ngokuvamile kufika ku-1000V futhi ngezilinganiso eziphakathi kuka-0.5A no-125A. Ama-MCCB enzelwe izinhlelo zokusebenza zezimboni nezinkulu futhi angakwazi ukuphatha ama-currents asuka ku-10 amps kuya ku-2,500 amps.

Ukuphula Amandla:I-breaking capacity inani eliphezulu lephutha lamanje i-circuit breaker engakhubeka ngaphandle kokudala umonakalo. Uma kuqhathaniswa ne-MCB, i-MCCB inamandla okuphuka. Ama-MCCB angaphazamisa amaza afika ku-100 kA, kuyilapho ama-MCB ekwazi ukuphazamisa u-10 kA noma ngaphansi. Ngakho-ke, i-MCCB ifaneleka kakhulu kwizicelo ezinomthamo omkhulu wokuphuka.

Izimpawu zokuhamba:Inzuzo ye-MCCB ne-MCB isilungiselelo sohambo esilungisekayo. I-MCCB ivumela ukulungiswa ngakunye kohambo lwamanje kanye nokubambezeleka kwesikhathi ukuze kuvikelwe okunempumelelo kakhudlwana kwamasistimu kagesi namathuluzi. Ngokuphambene, ama-MCB anezilungiselelo zohambo ezigxilile futhi ngokuvamile enzelwe ukuhamba ngevelu ethile yamanje.

Izindleko:Ama-MCCB avame ukubiza kakhulu kunama-MCB ngenxa yosayizi wawo, izici ezisebenzayo, njll. Ama-MCCB ngokuyinhloko anomthamo ophezulu kanye nezilungiselelo zohambo ezilungisekayo. Ama-MCB ngokuvamile ayinketho enezindleko eziphansi zokuvikela amasistimu kagesi amancane nemishini.

Isiphetho

Kafushane, ama-MCCB nama-MCB adlala indima ebalulekile ekuvikeleni amasekhethi kumasekethe amafushane, ukulayishwa ngokweqile, namanye amaphutha ezinhlelweni zikagesi. Nakuba imisebenzi noma izinjongo zalokhu kokubili zifana, kusenomehluko ekusebenzeni. Ama-MCCB afaneleka kangcono amasistimu kagesi amakhulu anezidingo eziphezulu zamanje, kuyilapho ama-MCB ebiza kakhulu futhi afaneleka kangcono ukuvikela amasistimu kagesi amancane nemishini. Ukwazi lo mehluko kuzokusiza ukuthi ukhethe i-circuit breaker efanele ngezidingo zakho ezithile futhi uqinisekise ukuthi uhlelo lwakho lukagesi luhlala luphephile futhi lusebenza kahle.