Iziphuli zesekethe ezincinci (ii-MCB)ziyinxalenye ebalulekileyo yeenkqubo zombane zanamhlanje. Njengoko igama lisitsho, sisitshixo sombane esincinci esinqumla ngokuzenzekelayo umbane xa kufunyenwe impazamo. Eli nqaku liza kuhlola ukubaluleka kunye nomsebenzi wee-miniature circuit breakers ekugcineni ukhuseleko lombane.
Enye yezona nzuzo ziphambili zokusebenzisaiziphuli zesekethe ezincinciyikhono lazo lokukhusela iisekethe kwi-overcurrent kunye nee-short circuits. Ezi zixhobo zenzelwe ukusingatha umlinganiselo othile wamandla, ukuqinisekisa ukuba amandla ahamba kwisekethe awadluli umda omiselweyo. Kwimeko yokugcwala okanye i-short circuit,I-MCBukuhambahamba, ukuphazamisa ukuhamba kombane kunye nokuthintela naziphi na iingozi ezinokubakho ezifana nokushisa kakhulu okanye imililo yombane.
Iziphuli zesekethe ezincincizisetyenziswa kwiintlobo ngeentlobo zezicelo, ukusuka kwiindawo zokuhlala ukuya kwiindawo zoshishino. Kwizakhiwo zokuhlala,Ii-MCBZifumaneka rhoqo kwiibhodi zokutshintsha umbane ukukhusela iisekethe ezahlukeneyo ezibonelela ngombane kwiindawo ezahlukeneyo zendlu. Oku kwenza kube lula ukubona nokwahlula iisekethe ezineempazamo, kunciphisa umngcipheko weengozi zombane.
Kwiindawo zoshishino, ii-miniature circuit breakers zisetyenziselwa ukukhusela oomatshini nezixhobo. Ezi zixhobo azikhuseli nje kuphela iisekethe, kodwa zikwaphazamisa umbane ngexesha leemeko zombane ezingaqhelekanga, zithintela umonakalo kumatshini abiza kakhulu. Ngokubona ngokukhawuleza nokwahlula iisekethe ezineengxaki,Ii-MCBkunceda ukugcina ukusebenza kakuhle kunye nokuthintela ixesha lokungasebenzi elibizayo.
Iimpawu zokukhubeka kwee-miniature circuit breakers zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko kunye nokuthembeka kweenkqubo zombane. Kukho iintlobo ezahlukeneyoIi-MCBonokukhetha kuyo, nganye ine-trip curve yayo echaza isantya sokuphendula kwiintlobo ezahlukeneyo zeempazamo. Oku kwenza kube nokwenzeka ukukhetha i-MCB efanelekileyo kwiimfuno ezithile zesekethe, nokuba yi-elektroniki ebuthathaka kakhulu okanye injini ene-inrush currents.
Ukongeza,iziphuli zesekethe ezincincizinethuba lokuba ziphinde zisetyenziswe, ngokungafaniyo neefusi ezifuna ukutshintshwa xa zikhubeka. Nje ukuba ingxaki ilungisiwe kwaye ingxaki engundoqo isonjululwe,I-MCBIngaphinda ivulwe ngesandla ngokuyivula kwakhona iswitshi. Olu phawu lonyusa ukulula kwayo kwaye lunciphisa iindleko zokulungisa ekuhambeni kwexesha.
Enye into ekufuneka iqwalaselwe xa kuxoxwaiziphuli zesekethe ezincinciubukhulu bazo buncinci. Ngokungafaniyo nee-circuit breakers eziqhelekileyo ezinkulu kwaye zithatha indawo eninzi,Ii-MCBzincinci kwaye zinokufakwa lula ngaphakathi kwiibhodi zokutshintsha. Oku kuzenza zibe lolona khetho luphambili apho indawo incinci, njengakwizakhiwo zokuhlala okanye zorhwebo ezineekhabhathi zombane ezincinci.
Ukuququmbela,iziphuli zesekethe ezincincizizinto ezibalulekileyo ekugcineni ukhuseleko lombane kwizicelo ezahlukeneyo. Ukukwazi kwazo ukukhusela kwi-overcurrent kunye ne-short circuits, kunye neempawu eziphinda zisetyenziswe kunye nobukhulu obuncinci, kuzenza zibe yimfuneko kwiinkqubo zombane zanamhlanje. Nokuba kusekhaya, eofisini okanye kwindawo yemizi-mveliso,Ii-MCBqinisekisa ukusebenza kakuhle kweesekethe ngelixa kunciphisa iingozi ezinokubakho.
Ixesha lokuthumela: Sep-06-2023