Iyini i-Molded Case Circuit Breaker

Ama-circuit breaker e-Molded Case(I-MCCB) ingawunqamula ngokuzenzakalelayo ugesi ngemva kokuba ugesi udlule isethingi lokuhamba. Ikesi elibunjiwe libhekisela ekusetshenzisweni kwezivikeli zepulasitiki njengegobolondo langaphandle ledivayisi ukuhlukanisa iziqondisi kanye nezingxenye zensimbi ezisekelwe phansi. Ugesi ojwayelekile osetshenziswa kanje: 16, 25, 30, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 315, 350, 400, 500, 630A.
Isimiso sokusebenza:
Oxhumana nabo abayinhloko be-circuit breaker bavalwa ngesandla noma ngogesi. Ngemva kokuba oxhumana nabo abayinhloko bevalwe, indlela yokukhubeka yamahhala ivala oxhumana nabo abayinhloko endaweni evaliwe. Ikhoyili yokukhululwa kwe-overcurrent kanye ne-thermal element yokukhululwa kwe-thermal kuxhunywe ngokulandelana nesekethe eyinhloko, kanti ikhoyili yokukhululwa kwe-undervoltage ixhunywe ngokuhambisana nokunikezwa kwamandla.
Uma kwenzeka i-short circuit noma ukulayisha ngokweqile okukhulu ku-circuit, i-armature yokukhululwa kwe-overcurrent iyadonseka, okubangela ukuthi indlela yokukhubeka yamahhala isebenze kanye nokuxhumana okuyinhloko kunqamule i-circuit eyinhloko.
Uma isekethe igcwele ngokweqile, isici sokushisa sokukhululwa kokushisa siyashisa futhi sigobe umugqa we-bimetallic, sisunduze indlela yokukhubeka yamahhala ukuthi isebenze, futhi ukuthintana okuyinhloko kunqamula isekethe eyinhloko.
Uma isekethe ingaphansi kwamandla kagesi, i-armature yokukhululwa kwamandla kagesi iyakhishwa, okuvuselela indlela yokukhubeka yamahhala futhi kunqamule isekethe eyinhloko.
Uma inkinobho yokukhulula i-shunt icindezelwa, i-armature yokukhululwa kwe-shunt iyadonswa, indlela yokukhubeka yamahhala iyavulwa, futhi ukuthintana okuyinhloko kunqamula isekethe eyinhloko.