Emhlabeni wanamuhla othuthukayo, ukuphepha nokuphepha kwezakhiwo sekuyinto ehamba phambili kubanikazi bezakhiwo nabaphathi. Njengoba isidingo sezinyathelo zokuphepha ezithuthukisiwe siqhubeka nokwanda, isidingo sezinhlelo zikagesi ezinokwethenjelwa asikaze sibaluleke kakhulu. Izigebengu zesekethe ezibunjiwe (ama-MCCB) seziphenduke ingxenye ebalulekile ekuqinisekiseni ukuphepha nokuvikelwa kwezakhiwo, okuwenza abe yingxenye ebalulekile yokuthuthukiswa kokuphepha.
Ama-MCCB aklanyelwe ukuhlinzeka ngokuvikeleka okudlulele kanye nesiyingi esifushane, ukuvimbela ngokuphumelelayo imililo kagesi nezinye izingozi. Lawa ma-circuit breaker avikela ingqalasizinda kagesi yesakhiwo kanye nabantu abangaphakathi ebhilidini ngokuphazamisa ukuhamba kukagesi uma kwenzeka iphutha. Ngokuhlanganisa i-MCCB ekuthuthukisweni kokuphepha kwezakhiwo, abanikazi bezakhiwo banganciphisa kakhulu ingozi yezingozi zikagesi futhi bathuthukise ukuphepha kukonke.
Enye yezinzuzo eziyinhloko ze-MCCB yikhono layo lokuphatha amandla amanje aphezulu, okuyenza ifanelekele uhla olubanzi lwezicelo kusukela ezakhiweni zokuhlala kuya ezikhungweni zezimboni. Ukwakhiwa kwayo okuqinile nezici ezithuthukisiwe kuyenza ilungele ukuthuthukiswa kwezokuphepha kwesimanje, iqinisekisa ukuvikeleka okuthembekile kumaphutha kagesi nokudidayo.
Ukwengeza, i-MCCB inikeza ukuguquguquka okuthuthukisiwe nezinketho zokwenza ngokwezifiso, okuvumela ukuhlanganiswa okungenamthungo kumasistimu kagesi akhona. Lokhu kuzivumelanisa nezimo kuwenza abe yisixazululo esisebenzayo sokubuyisela kabusha izakhiwo ezindala kanye nokuthuthukisa izici zokuphepha ngaphandle kwesidingo sokulungisa kabusha okubanzi noma ukushintshwa.
Ngaphezu kwemisebenzi yawo yokuvikela, ama-MCCB aphinde abambe iqhaza ekusebenzeni kahle kwamandla nasekusimameni. Lawa ma-circuit breaker adlala indima ebalulekile ekukhuthazeni imikhuba engayingeni imvelo ngaphakathi kwezakhiwo ngokuphatha ngempumelelo ukulayishwa kukagesi nokuvikela ukumoshakala kwamandla.
Njengoba imithetho yokuphepha yebhilidi iqhubeka nokushintsha, ukubaluleka kokuthatha izinyathelo zokuphepha ezithuthukisiwe njenge-MCCB akunakugcizelelwa. Ngomlando wayo ofakazelwe wokwethembeka nokusebenza, i-MCCB kulindeleke ukuthi ibambe iqhaza elibalulekile ekulolongeni ikusasa lokuthuthukiswa kokuphepha.
Kafushane, ama-circuit breaker ahlanganisiwe asiza ukuthuthukisa ukuphepha kwebhilidi ngokunikeza ukuvikeleka okuqinile kumaphutha kagesi kanye ne-overcurrent. Ukuguquguquka kwazo, ukwethembeka kanye negalelo ekusebenzeni kahle kwamandla kuzenza zibe yingxenye ebalulekile yokuthuthukiswa kwezokuphepha kwesimanje. Njengoba isidingo sezakhiwo eziphephile siqhubeka sikhula, i-MCCB ngokungangabazeki izohlala ihamba phambili ekuqinisekiseni ukuphepha kwezakhiwo eminyakeni ezayo.
Isikhathi sokuthumela: Jul-05-2024