Ama-Molded Case Circuit Breakers (ama-MCCB): Isingeniso Sokuphepha Kukagesi
Ukuphepha kukagesi kubalulekile kuzo zonke izimboni kanye nemikhakha. Amadivayisi namasu amaningi athuthukiswe ukuvikela imishini, imishini kanye nabantu ezingozini zikagesi ezingaba khona. Elinye lamadivayisi anjalo elidlala indima ebalulekile ekuphepheni kukagesi yilelii-molded case circuit breaker (MCCB).
II-MCCBiyingxenye ebalulekile yesekethe eyenzelwe ukuhlinzeka ngokuvikelwa okuzenzakalelayo ngokumelene nogesi odlulayo, amasekethe amafushane, kanye nezinye izinkinga zikagesi. Isetshenziswa kabanzi ezindaweni zokuhlala, zezentengiselwano kanye nezezimboni ukuvikela izinhlelo zikagesi ekulimaleni nokuvimbela ingozi yemililo kagesi.
Ama-MCCBzibizwa ngokuthi “izicabha ezibunjiwe” ngoba zigcinwe ebhodleleni lepulasitiki eliqinile elihlinzeka ngokushisa nokuvikela. Eyaziwa ngokumelana kwazo nokushisa, umswakama kanye nokuguquguquka kwamandla kagesi, le nto yepulasitiki ye-thermoset ilungele ukugcinwa kwamadivayisi okuvikela kagesi ayinkimbinkimbi.
Indlela yangaphakathi ye-molded case circuit breaker yakhiwe izingxenye ezimbili eziyinhloko: i-trip unit kanye ne-current-carrier contacts. I-trip unit isebenza njengobuchopho be-I-MCCB, iqapha njalo ugesi ogeleza ngesekethe. Uma kwenzeka ugesi ugcwele ngokweqile noma ugesi omfushane, iyunithi yokuhamba ivula oxhumana nabo, iphazamise ukuhamba kukagesi futhi ihlukanise isekethe enephutha. Oxhumana nabo abathwala ugesi benziwe ngezinto ezisezingeni eliphezulu eziqinisekisa ukumelana okuncane kokuxhumana futhi zinikeze ugesi omuhle kakhulu.
Enye yezinzuzo eziyinhloko ze-I-MCCByi-trip current yayo elungisekayo. Ngokungafani nama-fuse endabuko, ama-MCCB avumela umsebenzisi ukuthi asethe i-trip current oyifunayo ngokusekelwe ezidingweni ezithile zomthwalo. Lokhu kuguquguquka kwenza ama-MCCB afaneleke ezinhlobonhlobo zezicelo kusukela kumasekethe okukhanyisa aphansi kuya emishinini yezimboni enamandla amakhulu.
Ngaphezu kwalokho,I-MCCByaziwa ngekhono layo elihle kakhulu lokuphula. Lona ugesi ophezulu kakhuluI-MCCBingakwazi ukusingatha ngaphambi kokukhubeka nokuphazamisa isekethe. Ama-MCCB aklanyelwe ukusingatha imisinga ye-short-circuit ephezulu futhi ahlinzeke ngokuvikelwa kwamaphutha kagesi okuthembekile, okunciphisa ingozi yokulimala kwemishini kanye nezingozi zikagesi.
Ngaphezu komthamo omkhulu wokuphula, eziningi zesimanjeAma-MCCBzinikeza izici ezithuthukisiwe njengokukhubeka kokushisa kanye nokwe-magnetic, ukuvikelwa kwamaphutha omhlaba kanye namakhono okulawula kude. Lezi zici zandisa ukuphepha nokusebenza kahle kwesistimu kagesi, okwenza kube lula ukubona nokuhlukaniswa kwamaphutha ngokushesha, kunciphisa isikhathi sokungasebenzi kanye nomonakalo ongaba khona.
Ngenxa yokwakheka kwayo okuncane kanye nezici ezilula ukuzisebenzisa, ama-MCCB kulula ukuwafaka nokuzinakekela. Lokhu kuwenza abe ukukhetha kokuqala kochwepheshe bezogesi kanye nochwepheshe, ngenkathi kuqinisekiswa ukusebenza kahle kanye nokusabela okusheshayo ngesikhathi sokwehluleka kukagesi.
Ngamafuphi,ama-circuit breaker e-molded case (ama-MCCB)zidlala indima ebalulekile ekuqinisekiseni ukuphepha kukagesi nokuvikela izinhlelo zikagesi ekulimaleni komsinga odlulayo kanye nowesifunda esifushane. Umsinga wazo wokuhamba olungisekayo, amandla aphezulu okuphuka kanye nezici ezithuthukisiwe zizenza zibe ukukhetha okuthembekile nokuguquguqukayo kwezicelo ezisukela ezakhiweni zokuhlala kuya ezindaweni ezinkulu zezimboni. Ngokutshala imali kuma-molded case circuit breakers, abantu ngabanye namabhizinisi bangenza ukuphepha kukagesi kube yinto ebaluleke kakhulu, banciphise izingozi ezingaba khona, futhi baqinisekise ukusebenza kahle kwezinhlelo zabo zikagesi.
Isikhathi sokuthunyelwe: Agasti-30-2023