Uhlalutyo lweMisebenzi kunye nezicelo ze-MCB Circuit Breakers

Kwiinkqubo zombane,ukhuseleko nokusebenza kakuhle kubaluleke kakhulu. IiMiniature circuit breakers (iiMCB) zezinye zezinto ezibalulekileyo eziqinisekisa zombini ezi zinto.Ii-MCB zizixhobo ezibalulekileyo kwiindawo zokufakelwa kombane zokuhlala, zorhwebo, kunye nemizi-mveliso, zikhusela iisekethe ekugqithiseni kakhulu nakwiisekethe ezimfutshane. Eli nqaku liza kujonga imisebenzi, iintlobo, iingenelo, kunye neendlela zokufakela ii-MCB ukuze zikuncede ufumane ukuqonda okubanzi ngale nxalenye ibalulekileyo yombane.

Yintoni ii-miniature circuit breaker (MCB)?

I-miniature circuit breaker (MCB) sisitshixo esizenzekelayo esiqhawula isekethe xa kufunyaniswa ukuba kukho umthwalo omninzi okanye impazamo. Ngokungafaniyo neefusi zemveli ekufuneka zitshintshwe emva kokuvuthuza, i-MCB inokuphinda isetyenziswe emva kokukhubeka, nto leyo eyenza ibe sisisombululo sokukhusela isekethe esilula nesithembekileyo. Ii-MCB zenzelwe ukukhusela iisekethe kumonakalo obangelwa yimisinga engaphezulu, nto leyo enokubangela ubushushu obugqithisileyo kunye neengozi zomlilo.

Yintoni umgaqo osebenzayo we-miniature circuit breaker (MCB)?

Ii-Miniature circuit breakers (MCBs) zisebenza ngokusekelwe kwiindlela ezimbini: i-thermal mechanism kunye ne-magnetic mechanism. I-thermal mechanism isabela kwiimeko zokugqithisa, apho i-current idlula umthamo we-circuit olinganiselweyo. I-overload current ifudumeza i-bimetallic strip, ibangela ukuba igobe kwaye iqalise iswitshi, ngaloo ndlela iphule i-circuit.

Kwelinye icala, le ndlela yokusebenza yemagnethi yenzelwe ukusingatha iisekethe ezimfutshane. Xa kwenzeka isekethe emfutshane, umsinga unyuka ngokukhawuleza, uvelisa amandla emagnethi anamandla atsala i-control lever, phantse ngoko nangoko unqumle isekethe. Le ndlela yokusebenza ephindwe kabini iqinisekisa ukuba i-miniature circuit breaker inokukhusela isekethe ngokuthembekileyo kwiingxaki ezigqithisileyo nakwiisekethe ezimfutshane.

Iintlobo zee-miniature circuit breakers

Ii-Miniature circuit breakers ziza ngeentlobo ezahlukeneyo, nganye yenzelwe ukusetyenziswa okuthile:

1. Uhlobo B Miniature Circuit Breaker: Olu hlobo lwe-circuit breaker lunombane ojikayo ophindwe kathathu ukuya kahlanu kunombane olinganisiweyo kwaye lufanelekile kwiindawo zokuhlala apho umthwalo unamandla okumelana nawo, njengokukhanyisa nokufudumeza.
2. Uhlobo C Miniature Circuit Breaker: Olu hlobo lwe-circuit breaker lunombane ojikajikayo ophindwe ka-5 ukuya kwi-10 kunombane okalwe ngokugqithisileyo, nto leyo eyenza ukuba lulungele ukusetyenziswa kwezorhwebo nemizi-mveliso enemithwalo yokungenisa efana neemoto kunye neetransformer.
3. Uhlobo D Miniature Circuit Breaker: Olu hlobo lwe-circuit breaker lunombane ojikajikayo ophindwe kalishumi ukuya kuma-20 kunombane olinganisiweyo kwaye lufanelekile kwizicelo zomthwalo onzima ezinee-surge currents eziphezulu, ezifana nee-motors ezinkulu kunye neejenereyitha.
4. Ii-Driver zesekethe ezincinci ze-Type K kunye ne-Type Z:Ezi ziintlobo ezikhethekileyo ezenzelwe usetyenziso oluthile, njengokukhusela imithwalo ye-capacitive okanye izixhobo ze-elektroniki ezinobuthathaka.

Iingenelo zokusebenzisa ii-miniature circuit breakers

Xa kuthelekiswa neefusi zemveli, ii-miniature circuit breakers (ii-MCB) zinezibonelelo ezilandelayo:

• Ingaphinda ihlaziywe:Ngokungafaniyo neefusi, ii-MCB zinokusetwa kwakhona emva kokukhubeka, oku kususa isidingo sokutshintshwa kunye nokunciphisa ixesha lokungasebenzi.
• Impendulo ekhawulezileyo: Xa kukho impazamo, i-MCB iya kukhubeka ngokukhawuleza ukuze kuncitshiswe umngcipheko wokonakala kwezixhobo zombane kwaye kuncitshiswe iingozi zomlilo.
• Uyilo oluNcinci: Ii-MCB zincinci kwaye zincinci kunee-fuse, nto leyo evumela ukusetyenziswa kakuhle kwendawo ye-switchboard.
• Ukhuseleko oluphuculweyo: I-MCB ibonelela ngokhuseleko oluphezulu ngokuthintela imililo yombane kunye nomonakalo wezixhobo obangelwa kukugqithisa kakhulu kunye neesekethe ezimfutshane.

Yintoni umahluko phakathi kwe-MCB kunye ne-RCD?

Ii-RCD zijonga ukungalingani komsinga, ingakumbi ukuvuza komhlaba. Iqinisekisa ukuba naluphi na ujikelezo olungalindelekanga lomsinga emhlabeni luyafunyanwa kwaye luyekiswe ngokukhawuleza, nto leyo ethintela ukuqhambuka kombane. Ii-MCB zijonga umsinga ogqithisileyo kwisekethe.

Ukufakwa nokugcinwa kwee-miniature circuit breakers

Xa ufaka ii-miniature circuit breakers (ii-MCB), umthwalo wombane kunye nohlobo lwe-MCB olufanelekileyo kwisicelo kufuneka luqwalaselwe ngononophelo. Soloko uqhagamshelana nosombane ofanelekileyo ukuqinisekisa ukufakwa okufanelekileyo kunye nokuthobela iikhowudi zombane zasekuhlaleni.

Ukugcinwa rhoqo kwee-miniature circuit breakers kubalulekile. Uvavanyo nokuhlolwa rhoqo kunceda ekufumaneni iingxaki ezinokubakho ngaphambi kokuba zikhokelele ekungasebenzini. Ukuqinisekisa ukusebenza kakuhle kwee-miniature circuit breakers kunokuphucula kakhulu ukhuseleko kunye nokuthembeka kweenkqubo zombane.

kufuphi

IiMiniature circuit breakers (iiMCB) zizinto eziyimfuneko kwiinkqubo zombane zanamhlanje, zibonelela ngokhuseleko oluyimfuneko kunye nokhuseleko lwe-short-circuit. IiMCB ziyafumaneka kwiintlobo ezahlukeneyo ukuhlangabezana neemfuno ezahlukeneyo zesicelo. Xa kuthelekiswa neefusi zemveli, iiMCB zibonelela ngeenzuzo ezininzi, kubandakanya ukusebenza kwakhona, ixesha lokuphendula ngokukhawuleza, kunye nokhuseleko oluphuculweyo. Ukuqonda umsebenzi kunye nokubaluleka kweeMCB kubalulekile kuye nabani na obandakanyekayo ekufakweni okanye ekugcinweni kombane, njengoko kunceda ukuqinisekisa imeko-bume yombane ekhuselekileyo nesebenzayo.