Kodi wowononga dera ndi chiyani ndipo amachita chiyani

wophwanya:
A circuit breaker amatanthawuza chipangizo chosinthira chomwe chimatha kuyendetsa, kunyamula ndi kusweka pakali pano munthawi yanthawi yake, ndikuyendetsa, kunyamula ndi kuswa mphamvu zamagetsi munthawi yanthawi yodziwika.Zowononga ma circuit zimagawidwa m'magulu othamanga kwambiri komanso otsika-voltage otsika malinga ndi kuchuluka kwa ntchito, ndipo malire pakati pa voteji yayikulu ndi yotsika amakhala osamveka bwino.Nthawi zambiri zoposera 3kV zimatchedwa kuti zida zamagetsi zamphamvu kwambiri.
Ma circuit breakers angagwiritsidwe ntchito kugawira mphamvu yamagetsi, kuyambitsa ma asynchronous motors pafupipafupi, kuteteza zingwe zamagetsi ndi ma motors, ndikudula mabwalo pokhapokha ngati akuchulukirachulukira, kufupikitsa, kutsika kwamagetsi ndi zolakwika zina.Ntchito yake ndi yofanana ndi kuphatikizika kwa fuse switch ndi kutenthedwa ndi kutentha kwapang'onopang'ono.Komanso, nthawi zambiri sikofunikira kusintha magawo pambuyo pophwanya cholakwika.Lakhala likugwiritsidwa ntchito kwambiri tsopano.
Kugawa mphamvu ndi chinthu chofunikira kwambiri pakupanga, kutumiza ndi kugwiritsa ntchito magetsi.Dongosolo logawa mphamvu limaphatikizapo ma thiransifoma ndi zida zosiyanasiyana zamagetsi apamwamba komanso otsika.Low voltage circuit breakers ndi zida zamagetsi zomwe zimagwiritsidwa ntchito kwambiri komanso ntchito zosiyanasiyana.

mfundo ntchito:
Wowononga dera nthawi zambiri amakhala ndi makina olumikizirana, makina ozimitsa a arc, makina ogwiritsira ntchito, kumasula, ndi casing.
Pakachitika kagawo kakang'ono, mphamvu ya maginito yopangidwa ndi mphamvu yayikulu (nthawi zambiri 10 mpaka 12) imapambana mphamvu yamasika, kutulutsa kumakoka makina ogwiritsira ntchito kuti achitepo kanthu, ndipo kusinthako kumayenda nthawi yomweyo.Zikachulukirachulukira, kuchuluka kwaposachedwa, kutulutsa kutentha kumawonjezeka, ndipo bimetal imapunduka pamlingo wina kuti ilimbikitse kuyenda kwa makinawo (kuchuluka kwapano, kufupikitsa nthawi yochitapo kanthu).
Kwa mtundu wamagetsi, transformer imagwiritsidwa ntchito kusonkhanitsa kukula kwa gawo lililonse lapano ndikuliyerekeza ndi mtengo wokhazikitsidwa.Zomwe zilipo pakalipano, microprocessor imatumiza chizindikiro kuti kutulutsa kwamagetsi kumayendetsa makina ogwiritsira ntchito.
Ntchito ya wowononga dera ndikudula ndi kulumikiza dera lonyamula katundu, kudula dera lolakwika, kuteteza ngozi kuti isakule, ndikuonetsetsa kuti ntchitoyo ikuyenda bwino.Chowotcha chamagetsi champhamvu kwambiri chiyenera kuthyola arc ya 1500V ndi yapano ya 1500-2000A.Ma arcs awa amatha kutambasulidwa mpaka 2m ndikupitilira kuyaka.Chifukwa chake, kuzimitsa kwa arc ndivuto lomwe oyendetsa magetsi othamanga kwambiri ayenera kuthetsa.
Mfundo yozimitsa arc makamaka kuziziritsa arc kufooketsa kudzipatula kwamafuta.Komano, arc kuwomba elongates arc, kumalimbitsa recombination ndi mayamwidwe a particles mlandu, ndipo pa nthawi yomweyo kuwomba kutali mlandu particles mu arc kusiyana, mwamsanga kubwezeretsa mphamvu dielectric.
Low Voltage +, yomwe imadziwikanso kuti automatic air switch, imatha kugwiritsidwa ntchito kusinthira mabwalo olemetsa ndikuyatsa, ndipo itha kugwiritsidwanso ntchito kuwongolera ma mota omwe amayamba pafupipafupi.Ntchito yake ndi yofanana ndi kuchuluka kwa gawo kapena ntchito zonse za switch ya mpeni, relay mopitilira muyeso, relay yotayika yamagetsi, relay yotenthetsera komanso chitetezo chotayikira, ndipo ndi chida chofunikira choteteza pa netiweki yamagetsi yotsika.
Zowonongeka zamagetsi zotsika zimakhala ndi ntchito zambiri zoteteza (zochulukira, zozungulira pang'onopang'ono, chitetezo chamagetsi, ndi zina zambiri), mtengo wosinthika, kusweka kwakukulu, kugwiritsa ntchito bwino, chitetezo ndi zabwino zina, kotero zimagwiritsidwa ntchito kwambiri.Kapangidwe ndi mfundo yogwirira ntchito Chowotcha chocheperako chimakhala ndi makina ogwiritsira ntchito, zolumikizirana, zida zodzitetezera (zotulutsa zosiyanasiyana), ndi makina ozimitsa a arc.
Zolumikizana zazikulu zamagetsi owononga dera zimayendetsedwa pamanja kapena kutsekedwa ndi magetsi.Magulu akuluakulu atatsekedwa, njira yaulere yaulendo imatseka olumikizirana akuluakulu pamalo otsekedwa.Coil ya kumasulidwa kwa overcurrent ndi chinthu chotenthetsera cha kumasulidwa kwa kutentha kumagwirizanitsidwa motsatizana ndi dera lalikulu, ndipo coil ya kumasulidwa kwa undervoltage imagwirizanitsidwa mofanana ndi magetsi.Pamene dera liri lalifupi kapena lolemedwa kwambiri, zida za kumasulidwa kwapamwamba zimakokera mkati, kotero kuti njira yomasulidwa yaulere ikugwira ntchito, ndipo kukhudzana kwakukulu kumadula dera lalikulu.Dera likadzadzaza, gawo lotenthetsera la gawo laulendo wotenthetsera limatenthetsa, kupindika bimetal, potero likukankhira njira yaulere yaulendo kuti ichite.Pamene dera likuphwanyidwa, mphamvu ya kumasulidwa kwa undervoltage imatulutsidwa.Ndipo njira yaulere yaulendo imayendetsedwanso.Chida chapaulendo chofananira chimagwiritsidwa ntchito poyang'anira kutali.Pa ntchito yachibadwa, koyilo yake imachotsedwa mphamvu.Mukafunika kuwongolera mtunda, dinani batani loyambira kuti mupatse mphamvu koyilo.