Kodi magawo a MCB akuyimira chiyani?

Zosokoneza madera zazing'ono (MCB) amagwiritsidwa ntchito makamaka kuteteza ma circuit ku ma circuit afupi ndi overloads, ndipo angagwiritsidwenso ntchito mu ma system ogawa magetsi a magetsi kapena ma motors.
Imadziwika ndi mawonekedwe okongola komanso opapatiza, kulemera kopepuka, magwiridwe antchito abwino komanso odalirika, mphamvu yosweka kwambiri, kugwedezeka mwachangu, kuyika mosavuta njanji zowongolera komanso nthawi yayitali yogwira ntchito.
Pali zizindikiro zambiri pa miniature circuit breaker (MCB). Kodi zikutanthauza chiyani?

1. Kodi “C20” imatanthauza chiyani?
20 ndiye mphamvu yoyesedwa, ndiye C ikutanthauza chiyani? C ikuyimira makhalidwe ogubuduzika nthawi yomweyo a chodulira magetsi, chomwe chimagawidwa m'mitundu ya B, C ndi D;
Mtundu B (3-5) Mu umapindika ndi mphamvu yowonjezereka katatu mpaka kasanu kuposa mphamvu yowunikira. Ndi yoyenera kugwiritsa ntchito mphamvu yoletsa mphamvu komanso magetsi osakhudzidwa kwambiri. Mtundu uwu wa mphamvu uli ndi mphamvu yoyambira yaying'ono ndipo nthawi zambiri umagwiritsidwa ntchito m'magetsi apakhomo kapena m'malo omwe ali ndi chitetezo champhamvu.
Mtundu wa C (5-10) In umapindika nthawi 5 mpaka 10 kuposa mphamvu yowunikira. Ndi yoyenera kugwiritsa ntchito mphamvu zoyendetsera magetsi komanso magetsi owunikira okhala ndi mphamvu zambiri, monga nyali za tungsten halogen. Makhalidwe ake oyambira ali ndi mphamvu zambiri ndipo nthawi zambiri amagwiritsidwa ntchito poteteza magetsi ogawa magetsi.
Mtundu D (10-14) In umagwa nthawi 10 mpaka 14 kuposa mphamvu yoyesedwa. Ndi yoyenera machitidwe ogawa mphamvu okhala ndi mphamvu zambiri zolowa komanso mphamvu zazikulu zolowa, monga ma mota, ma solenoid valves ndi zina. Mitolo yotereyi imakhala ndi mphamvu zambiri zolowa.

2.240V/400V 50Hz/60Hz imatanthauza ma circuits oyenerera;
3.IEC60898 ikutanthauza muyezo wapadziko lonse wamagetsi wa IEC60898.
4. Kodi 4500A yomwe ili pansi imatanthauza chiyani? Kodi ndi magetsi?
Ndi mphamvu yamagetsi yeniyeni, zomwe zikutanthauza mphamvu yamagetsi yotsika kwambiri. Izi zikutanthauza kuti, ngati magetsi afupikitsa achitika pa mzere, ngati mphamvu yamagetsi ndi yayikulu kuposa 3000A, singadulidwe. Izi ndi zosiyana kwa opanga osiyanasiyana.

5. Kodi chizindikiro ichi chimatanthauza chiyani?
Chizindikiro ichi chikusonyeza kuti chodulira ma circuit chili ndi ntchito ziwiri zotchinga (zoteteza) pa overload ndi short circuit.