Yintoni iVacuum Circuit Breaker (VCB)

I-vacuum circuit breaker sisixhobo esibalulekileyo esisetyenziselwa ukulawula nokukhusela umbane kwiinkqubo zamandla. Sisebenza ngokuphazamisa okanye ukuvula isekethe phantsi kweemeko ezingaqhelekanga okanye ezineziphene, ezifana ne-short circuit breakers okanye i-overload. Ngokungafaniyo ne-circuit breakers zemveli, ii-VCB zisebenzisa i-vacuum ukucima i-arc eyenziwe ngexesha lokuphazamiseka. Le ndlela iphucukileyo iqinisekisa ukhuseleko lwesekethe oluthembekileyo nolusebenzayo, okwenza i-VCB ibe lukhetho oludumileyo kumashishini ahlukeneyo.

Ukongeza kwiimpawu zayo zokhuseleko ezingenasiphako, i-VCB ineenzuzo ezininzi. Okokuqala, ziyakwazi ukucima i-arc kwi-vacuum ngaphandle kwesidingo salo naluphi na uhlobo lokukhusela, okuvumela uyilo oluncinci olufuna ukugcinwa okulinganiselweyo. Ukongeza, ixesha labo lokuphendula ngokukhawuleza (elilinganiswa nge-microseconds) liqinisekisa ukhuseleko oluqhubekayo lweziphene, likhusela izixhobo zombane ezixabisekileyo. Kuyaqondakala ukuba i-VCB inobomi obude benkonzo kunee-circuit breakers zemveli, ayinazo iigesi eziyingozi ezifana ne-SF6, kwaye inobuhlobo nokusingqongileyo.

Ukuguquguquka kwee-vacuum circuit breakers kuzenza zilungele ukusetyenziswa ngeendlela ezahlukeneyo. Nokuba zikwizikhululo zamandla, kwiindawo zoshishino okanye kwizakhiwo zokuhlala, ii-VCBs zihlangabezana neemfuno ezahlukeneyo ze-voltage kunye ne-current. Ukususela ekukhuseleni ii-transformers kunye neejenereyitha ukuya ekuthinteleni imililo yombane, ezi circuit breakers zidlala indima ebalulekileyo ekugcineni ukuthembeka kunye nokhuseleko lweenkqubo ezinkulu zombane.

Ngamafutshane, ii-vacuum circuit breakers ziyinxalenye ebalulekileyo yeziseko zombane zanamhlanje. Ukukwazi kwazo ukukhusela iinkqubo zombane kwiimpazamo, kunye noyilo lwazo oluncinci kunye neempawu ezinobuhlobo nokusingqongileyo, kuzenza zibe lukhetho lokuqala kumashishini ahlukeneyo. Njengoko ubuchwepheshe buqhubeka buhambela phambili, ii-VCB ngokungathandabuzekiyo ziya kudlala indima ebalulekileyo ekuqinisekiseni ukhuseleko kunye nokusebenza kakuhle kweenkqubo zombane eziguqukayo.