Chii chinonzi DC miniature circuit breaker (MCB)?
Mabasa eDC MCB neAC MCB akafanana.Iwo ese ari maviri anochengetedza midziyo yemagetsi nemimwe mitoro yekuremedza kubva kune yakawandisa uye mapfupi-sekete matambudziko, uye inodzivirira kuchengetedzwa kwedunhu.asi mamiriro ekushandisa eAC MCB neDC MCB akasiyana.Zvinowanzoenderana nekuti magetsi anoshandiswa ari kuchinjisa nyika dzazvino here kana kuti yakananga ikozvino.Mazhinji eDC MCB anoshandisa masisitimu azvino chaiwo sesimba idzva, solar PV, nezvimwewo. Mavoltiji eDC MCB anowanzo kubva kuDC 12V-1000V.
Musiyano uripo pakati peAC MCB neDC MCB nemaitiro emuviri chete, AC MCB ine mavara enzvimbo dzekuti LOAD neLINE materminal nepo DC MCB ichange iine chiratidzo chakanaka (+) kana negative (-) panzvimbo yayo.
Ungabatanidza sei DC MCB nenzira kwayo?
Nekuda kweDC MCB ine mucherechedzo we'+' uye '-' chiratidzo chete, kazhinji zviri nyore kubatanidza zvisizvo.Kana iyo DC miniature yedunhu breaker yakabatana kana waya zvisizvo, pane mikana yekuitika kwematambudziko.Muchiitiko chekuremerwa kana kupfupika kwedunhu, iyo MCB haizokwanisi kucheka ikozvino uye kudzima arc, izvi zvinogona kutungamirira kumoto unopisa.
Naizvozvo, DC MCB ine mucherechedzo we'+' uye '-' zviratidzo, zvichiri kuda kumaka mafambiro edunhu nemadhayagiramu ewaya, sezvaratidzwa pazasi:
2P 550VDC
4P 1000VDC
Zvinoenderana nedhayagiramu yewaya, 2P DC MCB ine nzira mbiri dzekuisa waya, imwe iri pamusoro yakabatana nemapango akanaka neasina kunaka, imwe nzira iri pasi yakabatana nematanda akanaka uye asina kunaka sekumaka kwe'+' uye '- '.Kune 4P 1000V DC MCB ine nzira nhatu dzekuisa waya, zvinoenderana neyakasiyana mashandisirwo enzvimbo, kusarudza inoenderana wiring diagiramu yekubatanidza waya.
Ko AC MCB inoshanda kune DC nyika?
Iyo AC yazvino chiratidzo inoramba ichichinja kukosha kwayo kwesekondi yega yega.Iyo AC voltage siginecha inoshanduka kubva kune yakanaka kuenda kune yakaipa musekondi yega yega yeminiti.Iyo MCB arc ichadzimwa pa0 Volts, iyo wiring ichadzivirirwa kubva kune yakakura ikozvino.Asi chiratidzo cheDC hachina kuchinjika, chinoyerera chinogara chiripo uye kukosha kweiyo voltage kunongoshandurwa kana dunhu riri rwendo OFF kana dunhu rakadzikira nehumwe kukosha.Zvikasadaro, dunhu reDC rinopa kukosha kwenguva dzose kwemagetsi kwesekondi yega yega yeminiti.Saka, sezvo pasina 0 Volt poindi mudunhu reDC, hazviratidze kuti AC MCB inoshanda kumatunhu eDC.
Nguva yekutumira: Jul-30-2021