Indlela esebenza ngayo i-MCB

Namhlanje, siza kujonga ngokusondeleyo indlela esebenza ngayo imisebenzi enzimaiziphuli zesekethe ezincinci (I-MCB) kwaye ufunde indlela ezidlala ngayo indima ebalulekileyo ekugcineni iisekethe nezixhobo zikhuselekile. Ii-MCB zizixhobo ezincinci ezikhusela iisekethe kwi-overcurrent kunye nee-short circuits. Zenzelwe ukukhusela imigca kunye nezixhobo ekonakaleni okunokwenzeka ngokuphazamisa ukuhamba kombane xa udlula amanqanaba akhuselekileyo. Kweli nqaku, siza kugxila kwimigaqo emibini ephambili yokukhusela ngaphakathi kwee-miniature circuit breakers: ukhuseleko lokugqithisa kunye nokhuseleko lwe-short-circuit, kwaye sihlolisise indlela le migaqo esebenza ngayo kunye ukugcina ukusebenza ngokukhuselekileyo nangokufanelekileyo kweenkqubo zombane.

Okokuqala, masiqonde umgaqo wokukhusela ukugqithisa kakhulu. Umsebenzi oyintloko wokukhusela ukugqithisa kakhulu kukuthintela umbane kwisekethe ukuba ungadluli kumthamo wawo olinganiselweyo. Xa umbane udlula umlinganiselo, unokubangela ukuba iingcingo nezixhobo zifudumale kakhulu, nto leyo ebangela ingozi enkulu yomlilo. Umgaqo wokukhusela ukugqithisa kakhulu kwi-MCBs usekelwe kwimiphumo yobushushu. Xa umbane kwisekethe udlula ixabiso elibekiweyo, isiqwenga se-bimetallic se-thermal element kwi-miniature circuit breaker sifudumaliswa ngumbane, nto leyo ebangela ukuba ubushushu baso bunyuke. Nje ukuba ubushushu bufikelele kwinqanaba elibalulekileyo, umbane uyatshintshatshintsha, nto leyo ebangela ukuba i-bimetal igobe phezulu, ityhale i-lever ukuba ivule i-latch evaliweyo. Esi senzo sibangela ukuba i-MCB ikhubeke, inqumle ngempumelelo isekethe kwaye ithintele umbane ogqithisileyo ukuba ungahambi ngakumbi.

Ukuqhubela phambili kumgaqo wesibini wokhuseleko oluphambili, ukhuseleko lwesekethe emfutshane ludlala indima ebalulekileyo ekuchongeni ngokukhawuleza nasekunciphiseni ukunyuka kwamandla ombane ngequbuliso. Isekethe emfutshane yenzeka xa amandla ombane kwisekethe enyuka ngequbuliso aye kumanqanaba aphezulu kakhulu, ngokuqhelekileyo ngenxa yempazamo okanye isekethe emfutshane phakathi kweengcingo. Oku kubeka umngcipheko omkhulu kwizixhobo nakubasebenzi. I-MCB ixhotyiswe ngeyunithi yokuhamba nge-electromagnetic ekwaziyo ukubona ukunyuka ngokukhawuleza kwamandla ombane. Xa isekethe emfutshane ifunyanwa, ukukhululwa kwe-electromagnetic kudala amandla okutsala anamandla atsala i-ejector kwaye abangele ukuba i-latch evaliweyo ivuleke. Inqumla ngoko nangoko umbane ukuthintela amandla amakhulu ukuba angadluli, ikhusela ngempumelelo iisekethe kunye nezixhobo kumonakalo onokubakho.

Ngamafutshane, imigaqo emibini yokukhusela ukhuseleko olugqithisileyo kunye nokhuseleko lwe-short-circuit inceda ukugcina ukusebenza ngokukhuselekileyo nangokufanelekileyo kweesekethe nezixhobo. Ii-MCB zizinto ezibalulekileyo kwiinkqubo zombane kwaye zenzelwe ukuqinisekisa ukusebenza okungenamthungo kweziseko zombane ngelixa zinciphisa iingozi ezinxulumene ne-overcurrent kunye neesekethe ezimfutshane. Ngoyilo lwayo oluncinci kunye neendlela zokukhusela ezinamandla, i-MCB ibonelela ngesisombululo esithembekileyo nesisebenzayo sokukhusela iinkqubo zombane kwiindlela ezahlukeneyo zokusebenza, ukusuka kwiindawo zokuhlala ukuya kwizakhiwo zoshishino. Ngokuqonda ukusebenza okunzima kwee-MCB kunye nendima yazo ebalulekileyo ekukhuseleni iisekethe, sinokuqinisekisa ukhuseleko kunye nobude bexesha leziseko zethu zombane.

Iqela leMutai liqokelele amava angaphezu kweminyaka elishumi okuvelisa nokuthengisa kwi-iziphuli zesekethe, izixhobo zoqhagamshelwano, amandla amabiniiiswitshi zokudlulisela ngokuzenzekelayo (I-ATS) kunye neenkalo ezinxulumene noko. Silangazelela ithuba lokusebenza nani.