Inkqubo yokucima i-arc ye-MCCB kunye nesixhobo sokuhamba

Abaphuli beesekethe zetyala elibunjiweyo (I-MCCB) zizinto ezibalulekileyo kwiinkqubo zombane, zibonelela ngokhuseleko lwe-short circuit kunye ne-overcurrent. Enye yeempawu eziphambili ezenza i-MCCB isebenze kakuhle yinkqubo yayo yokucima i-arc kunye nesixhobo sokukhubeka. Zizonke, ezi zinto zimbini ziqinisekisa ukhuseleko kunye nokuthembeka kweenkqubo zombane, nto leyo eyenza i-MCCB ibe yeyona ifanelekileyo kwiintlobo ngeentlobo zezicelo.

Inkqubo yokucima i-arc kwi-MCCB yinto ebalulekileyo ekuthinteleni nasekucimeni ii-arcs eziveliswa xa ii-circuit breakers ziphazamisa ukuhamba kombane. Umsebenzi wesitshizi se-arc kukunciphisa nokwahlula i-arc, ngaloo ndlela siyicime. Oku kufezekiswa ngokusebenzisa igumbi lokucima i-arc elivalelwe ngaphakathi kwebhokisi yokukhusela enamandla aphezulu, eyakhiwe ngokuyintloko ziigridi ezininzi zokucima i-arc. Ezi gridi zidlala indima ebalulekileyo ekutshiseni i-arc kunye nasekucimeni ii-arc zeemveliso zombane ezine-voltage ephantsi.

Xa uqhagamshelwano luqhekeka ngenxa yokuphazamiseka, umbane ohamba kwindawo ene-ionized ye-contact udala i-magnetic field ejikeleze i-arc kunye ne-arc extinguisher. Imigca ye-magnetic field iqhuba i-arc kwipleyiti yentsimbi, apho isuswa khona i-ion kwaye yahlulwe, ngaloo ndlela iyipholisa. Le ndlela intsha iqinisekisa ukuba i-arc icinyiwe ngokufanelekileyo, ngaloo ndlela ikhusela iinkqubo zombane kumonakalo onokubakho obangelwa yi-arcing.

Ukongeza kwinkqubo yokucima i-arc, isixhobo sokukhubeka kwi-molded case circuit breaker sikwabalulekile ukuqinisekisa ukhuseleko kunye nokuthembeka kwenkqubo yombane. Esi sixhobo sokukhubeka sisebenza njengengqondo ye-circuit breaker, sikhubeka kwindlela yokusebenza xa kukho i-short circuit okanye i-overcurrent eqhubekayo. Ii-molded case circuit breakers zemveli zisebenzisa izixhobo ze-electromechanical trip ezenzelwe ukubonelela ngokhuseleko oluchanekileyo noluthembekileyo kwiimpazamo ezahlukeneyo zombane.

Ngokuhambela phambili kwetekhnoloji, izixhobo zokukhuhla ze-elektroniki ngoku zisetyenziswa kwizixhobo zokukhuhla iisekethe ezibunjiweyo ukubonelela ngemisebenzi yokhuseleko kunye nokubeka iliso ephucukileyo. Ezi zixhobo zokukhuhla ze-elektroniki ziphucula ukusebenza kwe-MCCB iyonke, zibonelela ngokhuseleko oluphezulu kwi-thermal overload, short circuit kunye neempazamo zomhlaba ezijikelezayo. Ukusetyenziswa kwezixhobo zokukhuhla ze-elektroniki kuqinisekisa ukuba i-MCCB inokumelana nezicelo ezahlukeneyo kwaye ibonelele ngokhuseleko oluthembekileyo kwinkqubo yombane.

Ukudibanisa inkqubo yokucima i-arc kunye nesixhobo sokukhubeka kwenza i-MCCB ibe lukhetho oluthembekileyo nolusebenzayo lokukhusela iinkqubo zombane. Inkqubo yokucima i-arc ithintela kwaye icime ngokufanelekileyo ii-arc, ngelixa isixhobo sokukhubeka siqinisekisa ukuba i-circuit breaker iphendula ngokukhawuleza nangokuchanekileyo kwiimpazamo zombane. Le ndlela yokukhusela epheleleyo yenza i-MCCB ifaneleke kwiintlobo ngeentlobo zezicelo, kubandakanya iindawo zoshishino, zorhwebo kunye neendawo zokuhlala.

Ngamafutshane, inkqubo yokucima i-arc kunye nesixhobo sokukhubeka kwi-molded case circuit breaker zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko kunye nokuthembeka kwenkqubo yombane. Iinkqubo zokucima i-arc zithintela kwaye zicime ngokufanelekileyo ii-arc, zikhusela iinkqubo zombane kumonakalo onokubakho. Kwangaxeshanye, isixhobo sokukhubeka sisebenza njengeziko lolawulo lwe-circuit breaker, sibonelela ngokhuseleko oluchanekileyo noluthembekileyo kwiimpazamo ezahlukeneyo zombane. Ngeempawu eziphambili kunye neendlela zokukhusela ezipheleleyo, i-MCCB ifanelekile kwiintlobo ngeentlobo zezicelo, okwenza kube lukhetho lokuqala kwiimfuno zokhuseleko lombane.

Iqela leMutai liqokelele amava angaphezu kweminyaka elishumi okuvelisa nokuthengisa kwi-umephuli wojikelezo, isikhombisi-ndlela, amandla amabiniiswitshi yokudlulisela ngokuzenzekelayokunye neenkalo ezinxulumene noko. Silangazelela ithuba lokusebenza nani.