Mfundo Yogwiritsira Ntchito ya Circuit Breaker

chosokoneza deranthawi zambiri imakhala ndi makina olumikizirana, makina ozimitsira arc, makina ogwiritsira ntchito, gawo loyendera, ndi kachikwama.
Ntchito ya chotseka mawaya ndikudula ndikulumikiza dera lonyamula katundu, ndikudula dera lolakwika, kuti aletse kukula kwa ngozi ndikuwonetsetsa kuti ntchito yake ndi yotetezeka. Chotseka mawaya chamagetsi champhamvu chimayenera kusweka 1500V, ndipo mphamvu yake ndi 1500-2000A arc, ndipo mawaya awa amatha kutambasulidwa mpaka 2m ndikupitilirabe kuyaka popanda kuzimitsa. Chifukwa chake, kuzimitsa mawaya ndi vuto lomwe liyenera kuthetsedwa kwa mawaya amagetsi amphamvu kwambiri.
Zophwanya ma circuit amagetsi otsika, yomwe imadziwikanso kuti automaticmaswichi a mpweya, ingagwiritsidwe ntchito kuyatsa ndi kutseka ma load circuits, komanso ingagwiritsidwe ntchito kuwongolera ma mota omwe amayamba kawirikawiri. Ntchito yake ndi yofanana ndi kuchuluka kwa ntchito zina kapena zonse za switch ya mpeni, over-current relay, voltage loss relay, thermal relay ndi leak protector. Ndi chipangizo chofunikira choteteza mu netiweki yogawa ma voltage ochepa.
Ma circuit breaker okhala ndi mphamvu zochepa ali ndi ntchito zambiri zoteteza (kuwonjezera mphamvu,dera lalifupi, chitetezo cha undervoltage, ndi zina zotero), mtengo wosinthika wogwirira ntchito, mphamvu yosweka kwambiri, kugwiritsa ntchito kosavuta, chitetezo, ndi zina zotero, kotero zimagwiritsidwa ntchito kwambiri. Kapangidwe ndi mfundo yogwirira ntchito Chosweka cha dera lamagetsi otsika chimapangidwa ndi njira yogwirira ntchito, zolumikizirana, zida zotetezera (zotulutsa zosiyanasiyana), makina ozimitsira a arc ndi zina zotero.
Kukhudza kwakukulu kwa chotseka ma circuit chamagetsi otsika kumatsekedwa pamanja kapena pamagetsi. Pambuyo poti cholumikizira chachikulu chatsekedwa, makina opukutira opanda zingwe amatseka cholumikizira chachikulu pamalo otsekedwa. Chozungulira cha kutulutsa kwamphamvu kwamagetsi ndi chinthu chotenthetsera cha kutulutsa kutentha zimalumikizidwa motsatizana ndidera lalikulu,ndipo coil ya undervoltage release imalumikizidwa limodzi ndi magetsi. Pamene dera lafupikitsidwa kapena litadzaza kwambiri, armature ya over-current release imakoka kuti makina otayira agwire ntchito, ndipo kukhudzana kwakukulu kudzachotsa dera lalikulu. Pamene dera ladzaza kwambiri, gawo lotentha la kutentha lidzapanga kutentha kuti lipinde pepala la bimetal, ndikukankhira makina otayira kuti agwire ntchito. Pamene dera ladzaza kwambiri, armature ya undervoltage release imatulutsidwa. Imayambitsanso makina otayira aulere. Kutulutsidwa kwa shunt kumagwiritsidwa ntchito polamulira kutali. Pa nthawi ya ntchito yanthawi zonse, coil yake imazimitsidwa. Pamene mtunda ukufunika, dinani batani loyambira kuti mupatse mphamvu coil.