MCCB: malire ocheperako osweka

Mukasankhachotsukira dera chopangidwa ndi bokosi (MCCB) pa makina anu amagetsi, muyenera kusamala ndi zinthu zingapo zofunika. Chimodzi mwa zinthuzi ndi mphamvu yodziwika bwino yotha kuswa magetsi mwachangu. Izi ndizofunikira kwambiri kuti makina amagetsi akhale otetezeka komanso odalirika, ndipo ndikofunikira kumvetsetsa kufunika kwake posankha MCCB.

Mphamvu yomaliza yothyola ma circuit short-circuit imatanthauza mulingo wapamwamba kwambiri womwe circuit breaker ingathyole ma current short-circuit current mosasamala kanthu za mikhalidwe inayake. Mbali imeneyi ndi yofunika kwambiri poteteza magetsi ku zotsatirapo zomwe zingachitike chifukwa cha zolakwika za ma circuit short. Pambuyo pa njira yoyesera yolembedwa, circuit breaker iyenera kupitiliza kunyamula ma current ake ovoteledwa mulimonse momwe zingakhalire. Izi zimatsimikizira kuti magetsi akupitilizabe kugwira ntchito ngakhale ma current short-circuit alephera.

Kuwonjezera pa mphamvu yomaliza yothyola ma circuit afupiafupi, mphamvu yogwira ntchito yothyola ma circuit afupiafupi a molded case circuit breaker iyeneranso kuganiziridwa. Izi zikutanthauza mphamvu yothyola pansi pa mikhalidwe yodziwika. Tiyenera kudziwa kuti circuit breaker iyenera kupitiriza kunyamula mphamvu yake yovomerezeka pambuyo potsatira njira zoyesera zomwe zafotokozedwa. Katunduyu ndi wofunikira kwambiri pakuwonetsetsa kuti makina amagetsi akudalirika komanso otetezeka kwa nthawi yayitali.

Ndikofunika kudziwa kuti opanga ma circuit breaker ambiri akunyumba pakadali pano amapereka ma plastic case circuit breaker okhala ndi milingo yosiyanasiyana ya kusweka kwa ma short-circuit kwa magetsi omwewo omwe ali ndi frame-level rated current. Izi zimathandiza ogwiritsa ntchito kusankha circuit breaker yomwe ikukwaniritsa zosowa zawo ndi zofunikira zawo. Posankha circuit breaker yopangidwa, ndikofunikira kuonetsetsa kuti mphamvu yosweka ya short-circuit ya circuit breaker ndi yokwanira pamagetsi a short-circuit omwe amayembekezeredwa. Izi zimachotsa kufunikira kowonjezera zinthu za inshuwaransi mwadala, zomwe zingayambitse kutayika kosafunikira.

Mtengo wa mphamvu yogwiritsira ntchito yofupikitsa magetsi ingasiyane, ndipo ma circuit breaker ambiri amapereka mphamvu kuyambira 25% mpaka 75% ya mphamvu yogwiritsira ntchito yofupikitsa magetsi. Ma circuit breaker ena amaperekanso 100% ya mphamvu yogwiritsira ntchito yofupikitsa magetsi. Ndikofunikira kuganizira izi mosamala posankha MCCB chifukwa zimakhudza mwachindunji kudalirika ndi magwiridwe antchito amagetsi.

Mwachidule, mphamvu yomaliza yothyola ma circuit short breaking capacity ndi chinthu chofunikira chomwe chiyenera kuganiziridwa mosamala posankha MCCB ya makina anu amagetsi. Pomvetsetsa kufunika kwa katunduyu komanso momwe amakhudzira chitetezo ndi kudalirika kwa makina amagetsi, mutha kupanga chisankho chodziwikiratu posankha MCCB yomwe ikukwaniritsa zosowa zanu ndi zofunikira zanu. Chifukwa cha mitundu yosiyanasiyana ya njira zomwe zilipo kuchokera kwa opanga ma circuit breaker akunyumba, ndikofunikira kuwunika mosamala mphamvu yothyola ma MCCB osiyanasiyana kuti muwonetsetse kuti mwasankha njira yomwe ikugwirizana bwino ndi makina anu amagetsi.