Emkhakheni wamasistimu kagesi, i-MCCB (Molded Case Circuit Breaker) idlala indima ebalulekile ekuqinisekiseni ukuphepha nokuthembeka kwakho konke ukufakwa. Ama-MCCB aklanyelwe ukuvikela amasekhethi ekulayishweni ngokweqile namasekhethi amafushane, awenze abe yingxenye ebalulekile kunoma yikuphi ukufakwa kukagesi.
Esinye sezici ezibalulekile ze-MCCB yikhono layo lokuhlinzeka ngokuvikela okuthembekile okudlulele. Lokhu kufezwa ngokusebenzisa amayunithi ohambo lwe-thermal-magnetic, angakwazi ukubona ukugcwala ngokweqile namasekhethi amafushane. Uma i-overcurrent itholwa, i-MCCB izokhubeka futhi iphazamise ukuhamba kukagesi, ivimbele noma yimuphi umonakalo ongaba khona ohlelweni lukagesi.
Ukwengeza, ama-MCCB aklanyelwe ukusetha kabusha kalula ngemva kokukhubeka, okuvumela ukubuyiselwa kwamandla okusheshayo ngaphandle kokunakekelwa okubanzi. Lesi sici sibaluleke kakhulu ezindaweni zentengiso nezezimboni, lapho isikhathi sokuphumula singaholela ekulahlekelweni okukhulu kwezimali.
Esinye isici esibalulekile se-MCCB yikhono layo lokuhlinzeka ngokuhlanganisa okukhethiwe. Lokhu kusho ukuthi uma kwenzeka iphutha, i-MCCB ethintwa ngokuqondile yiphutha kuphela ezokhubeka, kanti amanye ama-MCCB akhuphuka nomfula ngeke athinteke. Lokhu kuqinisekisa ukuthi amasekhethi athintekile kuphela ahlukanisiwe, okunciphisa ukuphazamiseka kulo lonke uhlelo lukagesi.
Ngaphandle komsebenzi wayo wokuzivikela, ama-circuit breakers abunjiwe anezinzuzo zesakhiwo esihlangene nokufakwa kalula. Ukwakheka kwayo okuhlangene kuyenza ifaneleke ezinhlobonhlobo zezicelo kusukela ekwakhiweni kwezindawo zokuhlala kuya ezikhungweni zezimboni.
Ngamafuphi, izigebengu zesekhethi ezibunjiwe ziyingxenye ebalulekile ezinhlelweni zikagesi, ezihlinzeka ngokuvikela okuthembekile kokudlulela ngokweqile kanye nesekhethi emfishane. Ikhono layo lokuhlinzeka ngokudidiyela okukhethiwe nemisebenzi yokusetha kabusha ngokushesha kuyenza ibe yimpahla ebalulekile ekuqinisekiseni ukuphepha nokuthembeka kokufakwa kukagesi. Njengoba ubuchwepheshe buqhubeka buthuthuka, indima yama-MCCB ezinhlelweni zikagesi izobaluleka kakhulu, ngakho-ke kubalulekile ukuthi onjiniyela nabasebenza ngogesi baqonde ngokugcwele ukubaluleka kwabo.
Isikhathi sokuthumela: Jun-11-2024