Ukuhlaziywa Kwemisebenzi Nokusetshenziswa Kwama-MCB Circuit Breakers

Ezinhlelweni zikagesi,ukuphepha nokusebenza kahle kubaluleke kakhulu. Ama-Miniature circuit breaker (ama-MCB) angenye yezingxenye ezibalulekile eziqinisekisa kokubili.Ama-MCB ayizinto ezibalulekile ekufakweni kukagesi kwezindlu, kwezentengiselwano, kanye nasezimbonini, avikela amasekethe ekugcwaleni ngokweqile kanye namasekethe amafushane. Lesi sihloko sizogxila emisebenzini, izinhlobo, izinzuzo, kanye nezindlela zokufaka ama-MCB ukuze sikusize uthole ukuqonda okuphelele kwalesi sakhi sikagesi esibalulekile.

Kuyinii-miniature circuit breaker (MCB)?

I-miniature circuit breaker (MCB) iyiswishi ezenzakalelayo enqamula isekethe lapho kutholakala ukugcwala ngokweqile noma iphutha. Ngokungafani nama-fuse endabuko okumele ashintshwe ngemva kokuvunguza, i-MCB ingasethwa kabusha ngemva kokukhubeka, okwenza kube yisisombululo sokuvikela isekethe esilula nesithembekile. Ama-MCB aklanyelwe ukuvikela amasekethe emonakalweni obangelwa ukugcwala ngokweqile, okungaholela ekushiseni ngokweqile kanye nezingozi zomlilo ezingaba khona.

Iyini isimiso sokusebenza se-miniature circuit breaker (MCB)?

Ama-Miniature circuit breaker (ama-MCB) asebenza ngokusekelwe ezindleleni ezimbili: indlela yokushisa kanye nendlela yamagnetic. Indlela yokushisa isabela ezimweni zokulayisha ngokweqile, lapho amandla kagesi edlula khona amandla alinganisiwe esekethe. Amandla kagesi kagesi ashisa i-bimetallic strip, okwenza ukuthi igobe futhi iqalise ukushintsha, ngaleyo ndlela iphule isekethe.

Ngakolunye uhlangothi, indlela yokusebenza yamagnetic iklanyelwe ukuphatha amasekethe amafushane. Uma kwenzeka isekethe elifushane, ugesi ukhuphuka ngokushesha, udala insimu enamandla yamagnetic edonsa i-control lever, cishe ngokushesha inqamule isekethe. Le ndlela yokusebenza ekabili iqinisekisa ukuthi i-miniature circuit breaker ingavikela isekethe ngokuthembekile ekugcwaleni ngokweqile kanye namasekethe amafushane.

Izinhlobo zama-miniature circuit breakers

Ama-Miniature circuit breaker eza ngezinhlobo ezahlukene, ngayinye yenzelwe ukusetshenziswa okuthile:

1. Uhlobo B Miniature Circuit Breaker: Lolu hlobo lwe-circuit breaker lunomthamo wokukhubeka ophindwe kathathu kuya kahlanu kunomthamo olinganiselwe futhi lufanelekela ukusetshenziswa kwezindlu lapho umthwalo unamandla okumelana nawo, njengokukhanyisa nokushisa.
2. Uhlobo C Miniature Circuit Breaker: Lolu hlobo lwe-circuit breaker lunomthamo wokukhubeka ophindwe ka-5 kuya ku-10 kunomthamo olinganiselwe, okwenza kube kuhle kakhulu ekusetshenzisweni kwezentengiselwano nezimboni ngemithwalo yokungenisa efana nama-motor nama-transformer.
3. Uhlobo D Miniature Circuit Breaker: Lolu hlobo lwe-circuit breaker lunomthamo wokukhubeka ophindwe kayi-10 kuya ku-20 wamandla alinganisiwe futhi lufanelekela ukusetshenziswa kwemithwalo esindayo enezikhukhula eziphezulu, njengezinjini ezinkulu kanye namajeneretha.
4. Ama-circuit breaker amancane ohlobo lwe-K nohlobo lwe-Z:Lezi yizinhlobo ezikhethekile ezenzelwe izinhlelo zokusebenza ezithile, njengokuvikela imithwalo ye-capacitive noma imishini kagesi ebucayi.

Izinzuzo zokusebenzisa ama-miniature circuit breaker

Uma kuqhathaniswa nama-fuse endabuko, ama-miniature circuit breaker (ama-MCB) anezinzuzo ezilandelayo:

• Ingaphinde isethwe:Ngokungafani nama-fuse, ama-MCB angasethwa kabusha ngemva kokukhubeka, okususa isidingo sokushintshwa nokunciphisa isikhathi sokungasebenzi.
• Impendulo Esheshayo: Uma kwenzeka iphutha, i-MCB izokhubeka ngokushesha ukuze inciphise ingozi yokulimala kwemishini kagesi futhi inciphise izingozi zomlilo.
• Umklamo Omncane: Ama-MCB mancane futhi mancane kune-fuse, okuvumela ukusetshenziswa kahle kwesikhala se-switchboard.
• Ukuphepha Okuthuthukisiwe: I-MCB inikeza izinga eliphezulu lokuphepha ngokuvimbela imililo kagesi kanye nomonakalo wemishini obangelwa ukugcwala ngokweqile kanye nama-short circuits.

Uyini umehluko phakathi kwe-MCB ne-RCD?

Iziqaphi ze-RCD zokulinganisa ukungalingani kwamandla kagesi, ikakhulukazi ukuvuza komhlaba. Iqinisekisa ukuthi noma yikuphi ukugeleza kwamandla kagesi okungahlosiwe emhlabeni kuyatholwa futhi kumiswe ngokushesha, okuvimbela ukushaqeka kukagesi. Iziqaphi ze-MCB zokulinganisa amandla kagesi angaphezu kwamandla kagesi eseketheni.

Ukufakwa nokugcinwa kwama-miniature circuit breakers

Uma ufaka ama-miniature circuit breaker (ama-MCB), umthwalo kagesi kanye nohlobo lwe-MCB olufanele lohlelo lokusebenza kumele kucatshangelwe ngokucophelela. Njalo xhumana nochwepheshe kagesi ofanelekayo ukuqinisekisa ukufakwa okufanele kanye nokuhambisana namakhodi kagesi endawo.

Ukugcinwa njalo kwama-miniature circuit breaker kubalulekile. Ukuhlolwa njalo nokuhlolwa kusiza ekutholeni izinkinga ezingaba khona ngaphambi kokuba ziholele ekwehlulekeni. Ukuqinisekisa ukusebenza kahle kwama-miniature circuit breaker kungathuthukisa kakhulu ukuphepha nokuthembeka kwezinhlelo zikagesi.

kafushane

Ama-Miniature circuit breaker (ama-MCB) ayizingxenye ezibalulekile ezinhlelweni zikagesi zesimanje, ahlinzeka ngokulayishwa ngokweqile okubalulekile kanye nokuvikelwa kwe-short-circuit. Ama-MCB atholakala ngezinhlobo ezahlukene ukuze ahlangabezane nezidingo zohlelo lokusebenza ezahlukahlukene. Uma kuqhathaniswa nama-fuse endabuko, ama-MCB anikeza izinzuzo eziningi, kufaka phakathi ukusebenza kabusha, isikhathi sokuphendula ngokushesha, kanye nokuphepha okuthuthukisiwe. Ukuqonda umsebenzi kanye nokubaluleka kwama-MCB kubalulekile kunoma ngubani ohilelekile ekufakweni noma ekulungisweni kukagesi, njengoba kusiza ukuqinisekisa indawo kagesi ephephile futhi esebenza kahle.