Intshayelelo kwi-molded case circuit breaker tripping

Iqhekeza lesekethe elibunjiweyo (I-MCCB) yinxalenye ebalulekileyo yeshishini lokusasazwa kwamandla aphantsi. Umsebenzi walo ophambili kukusika okanye ukwahlula umsinga wempazamo ngaphakathi koluhlu oluqhelekileyo nolulinganisiweyo ukuqinisekisa ukhuseleko lwemigca nezixhobo. Enye yezinto ezibalulekileyo ze-MCCB yindlela yayo yokukhubeka, edlala indima ebalulekileyo ekuphenduleni kwiimeko zempazamo nasekuthinteleni iingozi ezinokubakho.

Ii-MCCB zineendlela ezahlukeneyo zokuhamba, nganye yenzelwe ukujongana nohlobo oluthile lwemeko yempazamo kunye neemfuno zokusebenza. Indlela yokuqala kukuhamba ngemagnethi enye, apho i-circuit breaker idlula kuphela xa kwenzeka impazamo yesekethe emfutshane kumgca. Olu hlobo lokuhamba ludla ngokusetyenziswa kwiisekethe ze-heater okanye iisekethe zeemoto ezinokhuseleko olugqithisileyo ukubonelela ngokhuseleko oluyimfuneko kwezi zicelo.

I-thermal-magnetic tripping, eyaziwa ngokuba yi-compound tripping, yenye indlela ebalulekileyo ye-molded case circuit breakers. Le ndlela ibangela i-circuit breaker ukuba ikhubeke xa kwenzeka impazamo ye-short circuit kumgca okanye i-line current idlula i-rated current ixesha elide. Le ndlela ye-trip eguquguqukayo isetyenziswa rhoqo kwiimeko zokusasazwa kwamandla ngokubanzi, inika ukhuseleko olupheleleyo kwiintlobo ngeentlobo zezicelo.

Ukongeza kwezi ndlela zemveli zokujika, ukujika nge-elektroniki kube yiteknoloji ephucukileyo kwii-MCCB. Ii-circuit breakers ezixhotyiswe ngeeyunithi zokujika nge-elektroniki zine-magnetic trip current ehlengahlengiswayo, i-thermal trip current kunye nexesha lokujika, nto leyo ephucula ukuguquguquka kunye nokuchaneka kokukhusela iinkqubo zombane. Nangona ukujika nge-elektroniki kunika ukusetyenziswa okubanzi, kubalulekile ukuqaphela ukuba ii-MCCB ezisebenzisa obu buchwepheshe zihlala zibiza ngaphezulu ngenxa yeempawu zazo eziphambili.

Ukongeza, ii-circuit breakers ezikhethekileyo zingasetyenziselwa ukukhusela ii-motor circuits, kunye ne-magnetic tripping currents edla ngokudlula amaxesha ali-10 kunomlinganiselo wamandla. Olu yilo lunceda ukuthintela i-peak currents ngexesha lokuqalisa kwe-motor, ukuqinisekisa ukusebenza okuthe tye nokuthembekileyo.

Ngenxa yemisebenzi yayo eyahlukeneyo yokukhuhla, ii-molded case circuit breakers zibonelela ngesisombululo esibanzi sokukhusela iinkqubo zokusasazwa kwe-low-voltage. Nokuba kukukhuhla okukodwa kwe-magnetic, ukukhuhla kwe-thermal magnetic, ukukhuhla kwe-elektroniki okanye ukhuseleko lwesekethe yemoto, kukho i-molded case circuit breaker ehlangabezana neemfuno ezithile zesicelo ngasinye, nto leyo eyenza ukuba ibe yinto ebalulekileyo ekuqinisekiseni ukhuseleko kunye nokuthembeka kweenkqubo zombane.