Tanthauzo la magawo osiyanasiyana mu chipolopolo cha molded case circuit breaker (MCCB)

Zophwanya ma circuit breakers zopangidwa ndi molded case (MCCB) ndi zinthu zofunika kwambiri pa maukonde ogawa magetsi, zomwe zimateteza ku ma circuit afupiafupi komanso overloads. Kumvetsetsa magawo osiyanasiyana mkati mwa MCCB enclosure ndikofunikira kuti zitsimikizire kuti makina amagetsi akugwira ntchito bwino komanso otetezeka.

Voliyumu yovotera Ue ndi voliyumu ya dongosolo, yomwe ndi yokwera ndi 5% kuposa voliyumu yodziwika bwino pamagetsi. Chotsekera ma circuit cha pulasitiki chapangidwa kuti chizigwira ntchito ndi voliyumu yolimbana ndi impulse Uimp=12KV ndi voliyumu yovotera Ui 400V. Dziwani kuti voliyumu ya netiweki yogawa siyenera kupitirira voliyumu yovotera Ui kuti tipewe ngozi iliyonse yomwe ingachitike.

Chiŵerengero cha 125 Amp chomwe chilipo panopa chikuyimira mphamvu yayikulu yonyamulira mphamvu ya MCCB. Kuphatikiza apo, gawo la mphamvu yogwirira ntchito nthawi yomweyo II la kutulutsa kwa maginito ndi 10In, pomwe In ndi nthawi 10 kuposa mphamvu yovotera (1250A), zomwe zimatsimikizira kuti zinthu zikuyenda mwachangu komanso moyenera pansi pa nyengo yochepa.

Kumbali yakumanja ya chipolopolo cha chopachikira cha bokosi lopangidwa, mphamvu yogawa magawo afupifupi ya Icu=35KA ndi mphamvu yogawa magawo afupifupi ya Ics=22KA zimasonyeza kuthekera kwa chopachikira cha bokosi lopangidwa kuti chigwire ntchito pazochitika zafupifupi popanda kusokoneza chitetezo. MCCB idapangidwa kuti ikhale ndi kutentha kwa malo ogwirira ntchito kuyambira -5°C mpaka 40°C komanso pafupipafupi ya 50/60 Hz, zomwe zimapangitsa kuti ikhale yoyenera pazochitika zosiyanasiyana zachilengedwe.

Kuphatikiza apo, MCCB ikutsatira miyezo yopangira IEC/EN60947-2, kuonetsetsa kuti malamulo abwino ndi chitetezo akutsatira. Kukhazikitsa kumeneku kumatsimikizira kudalirika ndi magwiridwe antchito a MCCB, kupatsa ogwiritsa ntchito mtendere wamumtima pankhani yogwira ntchito bwino komanso kulimba kwa nthawi yayitali.

Mwachidule, kumvetsetsa magawo omwe ali mkati mwa MCCB enclosure ndikofunikira kwambiri posankha chipangizo choyenera choteteza dera lamagetsi. Chifukwa cha kapangidwe kake kolimba komanso kutsatira miyezo yopangira, MCCB imatsimikizira kuti imagwira ntchito bwino komanso modalirika m'njira zosiyanasiyana.