Chiyambi cha kugwedezeka kwa chosokoneza ma circuit breaker

Chosweka cha dera chopangidwa ndi chipolopolo (MCCB) ndi gawo lofunika kwambiri pamakampani opanga magetsi otsika mphamvu. Ntchito yake yayikulu ndikudula kapena kupatula mphamvu yamagetsi mkati mwa mulingo wabwinobwino komanso woyesedwa kuti zitsimikizire kuti mizere ndi zida zili bwino. Chimodzi mwazinthu zofunika kwambiri pa MCCB ndi njira yake yogwetsa, yomwe imagwira ntchito yofunika kwambiri poyankha mavuto ndikupewa zoopsa zomwe zingachitike.

Ma MCCB ali ndi njira zingapo zoyendera zomwe zimafanana, iliyonse yopangidwira kuthana ndi vuto la mtundu wina wa vuto ndi zofunikira pakugwira ntchito. Njira yoyamba ndi single magnetic tripping, pomwe circuit breaker imangoyenda pamene vuto la short circuit lachitika mu mzere. Mtundu uwu wa ulendo nthawi zambiri umagwiritsidwa ntchito pa heater circuits kapena motor circuits zokhala ndi chitetezo chochulukirapo kuti zipereke chitetezo chofunikira pa ntchito izi.

Kuthamanga kwa maginito otenthetsera, komwe kumadziwikanso kuti kugwedezeka kwa compound, ndi njira ina yofunika kwambiri yogwiritsira ntchito ma molded case circuit breakers. Njira imeneyi imayambitsa kuti circuit breaker igwe pamene vuto la short circuit lichitika pa mzere kapena line current ipitirira rated current kwa nthawi yayitali. Njira yosinthasintha iyi yoyendera imagwiritsidwa ntchito nthawi zambiri pazochitika zogawa mphamvu, zomwe zimapereka chitetezo chokwanira pa ntchito zosiyanasiyana.

Kuwonjezera pa njira zachikhalidwe zoyendera, kuyendetsa galimoto pogwiritsa ntchito electronic tripping kwakhala ukadaulo wapamwamba kwambiri wa MCCBs. Ma circuit breaker okhala ndi mayunitsi oyendera magalimoto pogwiritsa ntchito electronic trip ali ndi mphamvu yosinthika ya maginito, mphamvu yoyendera magetsi komanso nthawi yoyendera, zomwe zimapangitsa kuti magetsi azisinthasintha komanso kulondola. Ngakhale kuyendetsa galimoto pogwiritsa ntchito electronic tripping kukhale kothandiza kwambiri, ndikofunikira kudziwa kuti ma MCCB omwe amagwiritsa ntchito ukadaulo uwu nthawi zambiri amawononga ndalama zambiri chifukwa cha zinthu zawo zapamwamba.

Kuphatikiza apo, ma circuit breaker apadera angagwiritsidwe ntchito kuteteza ma motor circuit, ndipo ma magnetic tripping currents nthawi zambiri amaposa ma current ovomerezeka nthawi 10. Kapangidwe kameneka kamathandiza kupewa ma peak currents panthawi yoyambira injini, zomwe zimapangitsa kuti ntchito ikhale yosalala komanso yodalirika.

Ndi ntchito zake zosiyanasiyana zogwetsa, zogwetsa ma case circuit breakers zimapereka yankho lathunthu loteteza makina ogawa magetsi otsika. Kaya ndi single magnetic tripping, thermal magnetic tripping, electronic tripping kapena motor circuit protection, pali molded case circuit breaker yomwe imakwaniritsa zosowa za ntchito iliyonse, zomwe zimapangitsa kuti ikhale chinthu chofunikira kwambiri pakuwonetsetsa kuti makina amagetsi ndi otetezeka komanso odalirika.