Isixhobo sokwaphula iisekethe esincinci (i-MCB)sisixhobo esisetyenziswa kakhulu kwiinkqubo zombane ukukhusela iisekethe kwimithwalo enzima kunye neesekethe ezimfutshane. Siyinxalenye ebalulekileyo yokuqinisekisa ukhuseleko lombane kunye nokuthintela umonakalo kwizixhobo, izixhobo kunye neentambo. Kweli nqaku, siza kuhlola ukubaluleka kwee-miniature circuit breakers kunye nendlela ezisebenza ngayo.
A iqhekeza lesekethe elincinciluhlobo lwe-circuit breaker eyenzelwe ukusetyenziswa kwe-voltage ephantsi. Incinci ngobukhulu kwaye inokufakelwa lula kwiireyile ze-DIN ezisemgangathweni. Umsebenzi ophambili weI-MCBkukuphazamisa ngokuzenzekelayo ukuhamba kwamandla kwisekethe xa kukho ukuxinana okanye i-short circuit.
Inzuzo ephambili yeiziphuli zesekethe ezincincikukukwazi ukubona nokuphendula ngokukhawuleza nangokuchanekileyo kwiimeko zombane ezingaqhelekanga. Xa umbane udlula ixabiso elilinganisiweyo, into ehamba ngobushushu kwiiqhekeza lesekethe elincinciiyatshisa, nto leyo ebangela ukuba i-circuit breaker ikhubeke. Ngokufanayo, xa kukho i-short circuit, i-magnetic trip element ngaphakathi kwi-I-MCBibona ukunyuka okukhulu ngequbuliso kombane ize iphazamise i-circuit breaker.
Enye yeenzuzo ezibalulekileyo zokusebenzisaiqhekeza lesekethe elincinciyikhono layo lokusetwa kwakhona ngesandla emva kohambo. Ngokungafaniyo nezinye iintlobo zee-circuit breakers, ii-MCB zinokusetwa kwakhona ngokulula ngokujika iswitshi ibuyele kwindawo ye-ON, ukubuyisela amandla kwisekethe. Oku kususa imfuneko yokutshintshwa okanye ukulungiswa, okwenza ii-MCB zibe sisisombululo esingabizi kakhulu sokukhusela iinkqubo zombane.
Enye inzuzo yokusebenzisa ii-miniature circuit breakers kukukwazi kwazo ukubonelela ngokhuseleko lwesekethe nganye. Kwinkqubo yombane eqhelekileyo, ii-circuits ezahlukeneyo zinokuba namanqanaba ahlukeneyo eemfuno zangoku. NgokufakaIi-MCBkwisekethe nganye, umngcipheko wokugqithisa kakhulu okanye iisekethe ezimfutshane ezichaphazela yonke inkqubo unokuncipha kakhulu. Oku kuvumela ukwahlulwa okungcono kweempazamo kwaye kuphucula ukuthembeka ngokubanzi kofakelo lombane.
Ukongeza, ii-miniature circuit breakers zibonelela ngokulungelelaniswa okukhethiweyo. Oku kuthetha ukuba xa kukho impazamo efana nokugqithiswa kakhulu okanye i-short circuit, yi-miniature circuit breaker kuphela echaphazeleka ngqo yi-failure eya kukhubeka, ishiye ezinye zingachaphazeleki. Oku kunceda ekuchongeni nasekusombululeni iingxaki ze-circuits ezingalunganga, okonga ixesha kunye nomgudu ekufumaneni iingxaki.
Ukongeza kwimisebenzi yokukhusela, ii-miniature circuit breakers zihlala zinemisebenzi eyakhelwe ngaphakathi, njengezibane zesalathisi okanye izalathisi zokujika. Ezi zalathisi zibonelela ngesignali yesilumkiso esibonakalayo xaI-MCBikhubekile, nto leyo enceda umsebenzisi ukuba aqaphele ngokukhawuleza aze asombulule unobangela wokungasebenzi kakuhle kombane.
Ukuququmbela,iziphuli zesekethe ezincincizizinto ezibalulekileyo kwiinkqubo zombane, ziqinisekisa ukhuseleko kunye nokuthembeka kofakelo lonke. Ukukwazi kwazo ukubona iimeko zombane ezingaqhelekanga kunye nokuphazamisa ukuhamba kombane ngokukhawuleza kunceda ukuthintela umonakalo kwizixhobo kunye neentambo, kwaye zikhusela kwiingozi zombane ezifana nomlilo kunye nokutshayiswa kombane. Ngobukhulu bazo obuncinci, ukufakwa okulula kunye neempawu ezinokuphinda zisetyenziswe,Ii-MCBibonelela ngesisombululo esingabizi kakhulu sokukhusela iisekethe. Nokuba zikwiindawo zokuhlala, zorhwebo okanye kwimizi-mveliso, ii-miniature circuit breakers zidlala indima ebalulekileyo ekugcineni ukhuseleko lombane.
Ixesha lokuthumela: Septemba-05-2023