MCCB vs MCB vs RCBO: Kusho ukuthini?

I-MCCB iyisigqephuke sabajikelezo esibunjiwe, futhi i-MCB iyisiqhekezo seseketheli esincane. Bobabili basetshenziswa emibuthanweni kagesi ukuhlinzeka ngokuvikelwa ngokweqile. Ama-MCCBS asetshenziswa ngokujwayelekile ezinhlelweni ezinkulu, kanti ama-MCBS asetshenziswa emibuthanweni emincane.

I-RCBO iyinhlanganisela ye-MCCB ne-MCB. Kusetshenziswa emibukeni lapho kuvikelwa khona kokubili okunqamulelayo nokwesikhashana. I-RCBOS ayivamile kune-MCCBS noma i-MCBS, kepha bakhula ngokuduma ngenxa yekhono labo lokuhlinzeka ngezinhlobo ezimbili zokuvikelwa kudivayisi eyodwa.

Ama-MCCBS, ama-MCB, kanye nama-RCBOs wonke asebenza umsebenzi ofanayo oyisisekelo: ukuvikela amasekethe kagesi ekulimaleni ngenxa yezimo zedlulele zamanje. Kodwa-ke, ngamunye abe nezinzuzo zabo nobubi. I-MCCBS iyindawo enkulu kunazo zonke futhi ebiza kakhulu kwezindlela ezintathu, kepha zingakwazi ukuphatha amasondo aphezulu futhi ibe nesikhathi sokuphila esinde.

Ama-MCB amancane futhi abiza kakhulu, kepha anesikhathi esifushane sokuphila futhi angaphatha kuphela amasondo aphansi.Ama-RCBOs athuthuke kakhuluInketho, futhi banikela ngezinzuzo zama-MCCB kanye nama-MCBs kudivayisi eyodwa.

Lapho kunokungamuhleli okutholakele esifundeni, i-MCB noma i-miniature circuit breaker icisha ngokuzenzakalelayo umjikelezo ophumelelayo. I-MCBS yakhelwe ukunengqondo kalula lapho kunesikhathi esiningi samanje, esivame ukwenzeka lapho kukhona umjikelezo omfushane.

Ngabe isebenza kanjani i-MCB? Kunezinhlobo ezimbili zoxhumana nabo kwi-MCB - eyodwa ehleliwe futhi enye iyashukumisa. Lapho okugeleza kwamanje ngokugeleza kwesekethe, kubangela oxhumana nabo abangahambi kahle ukuba banqamule koxhumana nabo abahleliwe. Leli "livula" umjikelezo futhi livimba ukuhamba kukagesi kusuka ekuhlinzekeni okuyinhloko. Ngamanye amagama, i-MCB isebenza njengesilinganiso sokuphepha ukuvikela amasekethe ekugcwalisweni ngokweqile nasekulimaleni.

I-MCCB (Breaker Ebunjiwe Yesifunda)

I-MCCBS yenzelwe ukuvikela umjikelezo wakho ekugcwaliseni ngokweqile. Bafaka amalungiselelo amabili: eyodwa yokuqaqanjelwa futhi eyodwa yokushisa ngokweqile. I-MCCBS ibuye ibe ne-switch esetshenzisiwe ngesandla sokukhipha umjikelezo, kanye nabaxhumana nabo be-bimetallic abanwebekayo noma benkontileka lapho amathuba okushisa e-MCCB eshintsha.

Zonke lezi zinto zihlangana ukudala idivaysi ethembekile, eqinile engasiza ukugcina umjikelezo wakho uphephile. Ngenxa yokwakheka kwayo, i-MCCB ingaba ukukhetha okuhle kwezinhlelo zokusebenza ezahlukahlukene.

I-MCCB iyephula umjikelezo esiza ukuvikela imishini ngomonakalo ngokunqamula ukunikezwa okuyinhloko lapho okwamanje kudlula inani elisethiwe. Lapho ukwenyuka kwamanje, oxhumana nabo e-MCCB banwebisa futhi bafudumele baze bavule, ngaleyo ndlela baphule umjikelezo. Lokhu kuvimbela ukulimala okwengeziwe ngokuvikela imishini kusuka ekuhlinzekeni okuyinhloko.

Yini eyenza i-MCCB ne-MCB efanayo?

I-MCCBS nama-MCBS bobabili abaphuluki bejikeleza abahlinzeka ngento yokuvikelwa kumjikelezo wamandla. Zisetshenziswa kakhulu kwizibungu eziphansi ze-voltage futhi zenzelwe ukuzwa futhi zivikele umjikelezo kusuka kumasekethe amafushane noma izimo ezingenhla.

Ngenkathi babelana ngokufana okuningi, ama-MCCBS asetshenziselwa imibuthano emikhulu noma leyo enemisinga ephakeme, ngenkathi ama-MCBS elungele amasekethe amancane. Zombili lezi zinhlobo zokwephula umjikelezo zidlala indima ebalulekile ekuqinisekiseni ukuphepha kwezinhlelo zikagesi.

Yini ehlukanisa i-MCCB evela ku-MCB?

Umehluko omkhulu phakathi kwe-MCB ne-MCCB amandla abo. I-MCB inesilinganiso esingaphansi kwama-amps ayi-100 nge-amps ephazamisa ama-amps angaphansi kuka-18,000, kanti i-MCCB ihlinzeka nge-Amps aphansi njenge-10 futhi iphakeme ngo-2 500. Ngaphezu kwalokho, i-MCCB ifaka into eguqukayo yohambo lwamamodeli athuthukile. Ngenxa yalokhu, i-MCCB ilungele kakhulu amasekethe adinga umthamo ophakeme.

Okulandelayo umehluko ombalwa obaluleke kakhulu phakathi kwezinhlobo ezimbili zabaphulukiyo:

I-MCCB uhlobo oluthile lokuphuka kwesifunda olusetshenziselwa ukulawula nokuvikela amasistimu kagesi. I-MCBS nayo iyaphuka umjikelezo kepha ihlukile ngoba isetshenziselwa izinto zasendlini kanye nezidingo zamandla aphansi.

I-MCCBS ingasetshenziselwa izifunda eziphakeme ze-Energy Energy, njengezimboni ezinkulu.

IMCBSIba nomjikelezo wokuqalisa ohleliwe ngenkathi ku-MCCBS, umjikelezo wokuphamba uyashukumiseka.

Ngokuya nge-AmpS, ama-MCBS anama-amps angaphansi kwe-100 ngenkathi ama-MCCBS angaba nama-amps angama-2500.

Akunakwenzeka ukuthi uvule ukude futhi ukhiphe i-MCB ngenkathi kungenzeka ukwenza kanjalo nge-MCCB ngokusebenzisa i-shunt wire.

Ama-MCCBS asetshenziswa ikakhulukazi ezimweni lapho kukhona khona okunzima kakhulu ngenkathi ama-MCBS angasetshenziswa kunoma yisiphi isekethe samanje.

Ngakho-ke, uma udinga umfutho wesifunda wekhaya lakho, uzosebenzisa i-MCB kepha uma udinga eyodwa ngesilungiselelo sezimboni, uzosebenzisa i-MCCB.