Mzere Wokhotakhota wa MCB

Zosokoneza madera zazing'ono (MCB) amagwira ntchito yofunika kwambiri poteteza ma circuit ndi zida. Ma miniature circuit breaker awa adapangidwa kuti asokoneze kuyenda kwa magetsi pokhapokha ngati pali vuto, kuteteza kuwonongeka kwa makina ndikuwonetsetsa kuti ogwira ntchito ali otetezeka. Mbali yofunika kwambiri ya MCB ndi mtundu wa trip curve, womwe umatsimikiza nthawi yoyankhira ndi kuchuluka kwa current ya circuit breaker ikagwa. Kumvetsetsa mitundu yosiyanasiyana ya trip curve ndikofunikira kwambiri posankha MCB yoyenera pa ntchito inayake.

Mzere wokhotakhota wa chotchingira chaching'ono umatanthauza ubale womwe ulipo pakati pa mphamvu yamagetsi yokhotakhota ndi mphamvu yovotera. Pali mitundu yosiyanasiyana ya ma trip curve, iliyonse yoyenera mitundu yosiyanasiyana ya katundu ndi ntchito. Mitundu yodziwika bwino ya ma trip curve a MCB ndi Mtundu A, Mtundu B, Mtundu C ndi Mtundu D. Mtundu uliwonse uli ndi makhalidwe akeake ndipo ndi woyenera pazochitika zosiyanasiyana, kuyambira kuteteza ma semiconductor electronic circuits mpaka malo oyambira katundu wolemera.

Mtundu wa A tripping curve umadziwika ndi maginito tripping current a (2-3) In. Ndi woyenera kuteteza ma semiconductor electronic circuits, ma semiconductors oyezera ma transformers amphamvu ochepa, kapena machitidwe okhala ndi mizere yayitali ndi ma currents ang'onoang'ono. Ma MCB amtundu wa A apangidwa kuti apereke yankho mwachangu ku zolakwika zochepa, zomwe zimapangitsa kuti akhale abwino kwambiri pazida zamagetsi ndi ma semiconductors omwe amafunikira chitetezo cholondola.

Mphamvu yamagetsi yogwetsa ya mtundu wa B tripping curve ndi (3-5) In. Ma MCB awa ndi oyenera kugwiritsa ntchito zinthu zoletsa mphamvu komanso magetsi otsika mphamvu. Amagwiritsidwa ntchito kwambiri m'makina ogawa magetsi m'nyumba, m'zida zapakhomo komanso m'chitetezo cha munthu payekha. Ma MCB amtundu wa B amapereka chitetezo chogwira ntchito pa ntchito zosiyanasiyana zapakhomo ndi zamalonda.

Mphamvu yamagetsi yogwetsa ya mtundu wa C tripping curve ndi (5-10) In. Ma MCB awa ndi oyenera kunyamula katundu woyambitsa komanso ma circuits owunikira okhala ndi mphamvu zambiri. Amagwiritsidwa ntchito kwambiri kuteteza mizere yogawa ndi ma circuits owunikira okhala ndi ma currents amphamvu. Ma MCB amtundu wa C ndi osinthika komanso oyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana komwe kumafunika chitetezo cholondola cha katundu woyambitsa.

Mtundu wa D tripping curve umadziwika ndi maginito tripping current a (10-20) In. Ma MCB awa ndi oyenera machitidwe omwe ali ndi katundu wothandiza kwambiri komanso maginito akuluakulu olowera. Nthawi zambiri amagwiritsidwa ntchito kuteteza zida zomwe zili ndi maginito ambiri olowera, monga ma transformer ndi ma solenoid valves. Ma MCB amtundu wa D amapangidwira kuti azipirira katundu wolemera komanso kupereka chitetezo chodalirika m'malo opangira mafakitale.

Mwachidule, kumvetsetsa ma curve opindika a mitundu yosiyanasiyana ya ma miniature circuit breakers ndikofunikira kwambiri posankha MCB yoyenera pa ntchito inayake. Kaya kuteteza ma circuit amagetsi ofunikira kapena zida zolemera zamafakitale, ma MCB okhala ndi mtundu woyenera wa curve opindika ndi ofunikira kwambiri pakuwonetsetsa kuti makina amagetsi ndi otetezeka komanso odalirika. Ndi luso lawo losiyanasiyana, ma MCB amakhalabe gawo lofunikira pachitetezo chamagetsi ndi chitetezo m'mafakitale osiyanasiyana.

Gulu la Mutai lakhala ndi zaka zoposa khumi zogwira ntchito yopanga ndi kugulitsa zinthuzosokoneza ma circuit, zolumikizira, mphamvu ziwirimaswichi osamutsa okha (ATS) ndi madera ena ofanana. Tikuyembekezera mwachidwi mwayi wogwira nanu ntchito.