Ntchito ndi kusankha ma miniature circuit breakers (MCBs)

Kumvetsetsa udindo wazothyola madera zazing'ono (MCBs)mu machitidwe amagetsi

Ma Miniature circuit breakers (MCBs) ndi zinthu zofunika kwambiri m'magetsi amakono, zomwe zimateteza kwambiri ku zinthu zodzaza ndi magetsi komanso ma short circuit. Pamene kufunikira kwa zida zamagetsi zodalirika komanso zotetezeka kukupitilira kukula, kumvetsetsa ntchito ndi kufunika kwa ma MCBs kukukulirakulira kwa akatswiri komanso ogwiritsa ntchito nyumba.

Kodi MCB ndi chiyani?

Chotsekera dera laling'ono (MCB) ndi chipangizo chamagetsi chomwe chimapangidwa kuti chitsegule dera lokha pamene vuto lapezeka, monga overload kapena short circuit. Mosiyana ndi ma fuse achikhalidwe, omwe ayenera kusinthidwa akaphulika, ma MCB amatha kubwezeretsedwanso akagwa, zomwe zimapangitsa kuti akhale njira yabwino komanso yothandiza yotetezera dera.

Momwe MCB imagwirira ntchito

Mfundo yogwirira ntchito ya miniature circuit breaker (MCB) imachokera makamaka pa zinthu ziwiri: chitetezo cha kutentha ndi chitetezo cha maginito. Njira yotetezera kutentha imagwiritsidwa ntchito kuthana ndi zovuta zochulukirapo, ndiko kuti, mphamvu yamagetsi imaposa mphamvu yovomerezeka ya dera. Mphamvu yamagetsi yochulukirapo imapanga kutentha, zomwe zimapangitsa kuti mzere wa bimetallic mkati mwa dera locheperako upinde, zomwe pamapeto pake zimapangitsa kuti dera ligwe.

Zipangizo zamaginito, kumbali ina, zimapangidwa kuti zigwire ma circuit afupiafupi, omwe ndi kukwera kwadzidzidzi kwa magetsi. Pankhaniyi, mphamvu yamaginito yopangidwa ndi magetsi akuluakulu imakoka chowongolera, pafupifupi nthawi yomweyo kuswa magetsi ndikuletsa kuwonongeka kwa makina amagetsi.

Mitundu ya Miniature Circuit Breakers

Pali mitundu yosiyanasiyana ya ma miniature circuit breaker, oyenera kugwiritsidwa ntchito mosiyanasiyana. Mitundu yodziwika kwambiri ndi iyi:

1. Mtundu B MCB: Mtundu uwu wa chotsegula ma circuit wapangidwa kuti ugwe pakati pa nthawi zitatu mpaka zisanu kuposa mphamvu yovotera ndipo nthawi zambiri umagwiritsidwa ntchito m'nyumba momwe katunduyo umakhala wolimba kwambiri.

2. Mtundu C MCB: Ma circuit breaker awa ali ndi current yothamanga yokwana nthawi 5 mpaka 10 kuposa current yoyesedwa ndipo ndi oyenera kugwiritsidwa ntchito m'mabizinesi ndi m'mafakitale komwe kuli zinthu zoyambitsa monga ma motors.

3. Ma circuit breaker a mtundu wa D: Ma circuit breaker awa amapangidwira ma current stream ambiri ndipo amatha kugwedezeka ndi ma current stream mpaka nthawi 10 mpaka 20 kuposa ma current power omwe adavoteledwa. Nthawi zambiri amagwiritsidwa ntchito pa ma mota akuluakulu kapena ma transformer.

Ubwino wogwiritsa ntchito MCB

Ma Miniature circuit breakers (MCBs) amapereka ubwino wambiri kuposa ma fuse achikhalidwe. Choyamba, ma MCB ali ndi nthawi yofulumira yoyankha, zomwe ndizofunikira kwambiri popewa kuwonongeka kwa zida zamagetsi ndikuchepetsa chiopsezo cha moto. Kachiwiri, kukhazikika kwawo kumatanthauza kuti ogwiritsa ntchito amatha kubwezeretsa mphamvu mwachangu popanda kusintha zida zina. Ma MCB ndi ang'onoang'ono komanso osavuta kuyika, zomwe zimapangitsa kuti akhale chisankho chabwino kwambiri pa switchboards zamakono.

Kukhazikitsa ndi Kusamalira

Kukhazikitsa ndi kusamalira bwino ma miniature circuit breakers (MCBs) ndikofunikira kuti zitsimikizire kuti zikugwira ntchito bwino. Sankhani mtundu woyenera wa MCB ndi mlingo wa pulogalamuyo kuti mupewe kusokonezeka kapena chitetezo chokwanira. Kuwunika nthawi zonse kuyenera kuchitika kuti muwonetsetse kuti MCB ikugwira ntchito bwino ndipo sikuwonetsa zizindikiro zakuwonongeka kapena kuwonongeka.

Mwachidule

Mwachidule, ma miniature circuit breakers (MCBs) amagwira ntchito yofunika kwambiri poteteza magetsi ku zinthu zodzaza ndi magetsi komanso ma short circuit. Kutha kwawo kupereka chitetezo chodalirika, kuphatikiza kugwiritsa ntchito mosavuta komanso kukhazikika, kumawapangitsa kukhala gawo lofunikira kwambiri pakukhazikitsa magetsi m'nyumba ndi m'mabizinesi. Pamene ukadaulo ukupitilira, kufunika kwa ma MCB pakuonetsetsa chitetezo chamagetsi kudzakula kokha, zomwe zimapangitsa kuti aliyense amvetsetse mawonekedwe ndi maubwino awo. Kaya ndinu mwini nyumba yemwe mukufuna kukonza chitetezo chamagetsi, kapena katswiri pantchitoyi, kumvetsetsa ma MCB ndikofunikira kwambiri m'dziko lamagetsi lamakono.