Mlandu Wophwanyidwa Wozungulira
A molded case circuit breaker (MCCB)ndi mtundu wamagetsi ozungulira omwe amagwiritsidwa ntchito kwambiri poteteza magetsi m'mafakitale ndi malonda chifukwa cha kuthekera kwake kupereka chitetezo chodalirika komanso chotetezeka ku overcurrent, short circuits ndi zina zowonongeka zamagetsi.M’nkhaniyi, tiona mozamaMCCBsndi kukambirana makhalidwe awo, mfundo ntchito, zomangamanga, ndi ntchito.
Makhalidwe a MCCBs
MCCBs adapangidwa ndi ntchito zingapo zomwe zimathandiza kuteteza magetsi m'njira yotetezeka komanso yodalirika.Zina mwazinthu zazikulu za MCCB ndi izi:
- Kuthamanga kwakukulu:Zopangira ma circuit breakersamatha kuthyola mafunde mpaka masauzande a ma amperes, kuwapanga kukhala abwino kwa mapulogalamu amphamvu kwambiri.
- Thermal-magnetic trip mechanism:Zopangira ma circuit breakersgwiritsani ntchito makina oyendera matenthedwe otenthetsera kuti muzindikire ndikuyankha mabwalo opitilira muyeso komanso afupi.Maulendo otenthetsera amayankha mochulukira, pomwe maginito aulendo amayankha mabwalo aafupi.
- Mayendedwe Osinthika: Ma MCCB ali ndi makonda osinthika, omwe amawalola kukhazikitsidwa pamlingo woyenera wa pulogalamu yomwe mukufuna.
- Zosiyanasiyana makulidwe a chimango: MCCBs zilipo mu makulidwe osiyanasiyana chimango, amene amalola kuti ntchito zosiyanasiyana applications.Ntchito mfundo ya kuumbidwa mlandu circuit breaker Mfundo ntchito ya MCCB zachokera matenthedwe-maginito tripping limagwirira .Gawo laulendo wotenthetsera limazindikira kutentha kobwera chifukwa chakuyenda kwapano muderali ndipo limayendetsa chophwanyira dera pomwe madziwo apitilira paulendo.Mphamvu ya maginito yaulendo imazindikira mphamvu ya maginito yopangidwa ndi kagawo kakang'ono kozungulira, kugwetsa chophwanyira pafupifupi nthawi yomweyo.
- MCCB ili ndi nyumba yapulasitiki yopangidwa ndi pulasitiki yomwe imakhala ndi makina oyendera maulendo, zolumikizirana komanso zonyamulira zamakono.
- Zolumikizanazo zimapangidwa ndi zinthu zochititsa chidwi kwambiri monga mkuwa, pomwe njira yaulendo imakhala ndi mzere wa bimetallic ndi koyilo yamaginito.
Kugwiritsa ntchito kwa MCCB
MCCBs zambiri ntchito zosiyanasiyana ntchito monga:
- Njira yogawa mphamvu
- Motor Control Center
- Makina opanga mafakitale
- Zosintha
- Seti ya jenereta
Pomaliza
Ma mold case circuit breakers ndi odalirika kwambiri komanso othandiza pachitetezo chamagetsi.Mapangidwe awo ndi mawonekedwe awo amawapangitsa kukhala abwino kugwiritsidwa ntchito pazinthu zosiyanasiyana monga ma transfoma, makina ogawa magetsi, ndi malo owongolera magalimoto.Makina awo oyendera matenthedwe otenthetsera, mphamvu yosweka kwambiri komanso makonda osinthika aulendo amawapangitsa kukhala chisankho chodziwika bwino chachitetezo chamagetsi pamabizinesi ndi mafakitale.
Nthawi yotumiza: Mar-10-2023