Iyini imisebenzi yama-circuit breaker?Incazelo enemininingwane yomgomo wokusebenza wama-circuit breaker
Uma iphutha lenzeka ohlelweni, ukuvikelwa kwesici esinephutha kuyasebenza futhi i-circuit breaker yehluleka ukuhamba, ukuvikelwa kwesici sephutha sisebenza ku-breaker circuit eseduze yesiteshi esincane ukuba sihambe, futhi uma izimo zivuma, isiteshi singase esetshenziselwa ukwenza ama-circuit breaker ahlobene ekugcineni okukude ngesikhathi esifanayo.I-wiring ephihliwe ibizwa ngokuthi i-breaker failure protection.
Ngokuvamile, ngemva kokuba isici samanje sesigaba esahlulelwa ngokuhlukaniswa kwesigaba sisebenza, amasethi amabili oxhumana nabo abaqalayo ayaphuma, axhunywe ochungechungeni noxhumana nabo bokuvikela isenzo sangaphandle ukuze kuvikelwe ukwehluleka kokuqala lapho ulayini, uthayi webhasi noma i-sectional circuit breaker ihluleka.
Iyini imisebenzi yama-circuit breakers
Izinqamuli zesekethe zisetshenziswa kakhulu kumamotho, ama-transformer anamandla amakhulu kanye neziteshi ezincane ezivame ukuphula imithwalo.I-circuit breaker inomsebenzi wokuphula umthwalo wengozi, futhi isebenzisana nokuvikela okuhlukahlukene kokudlulisela ukuvikela izinto zikagesi noma imigqa.
Izinqamuli zesekethe zivame ukusetshenziswa ekukhanyeni kwe-voltage ephansi nasezingxenyeni zamandla, ezinganqamula isekethe ngokuzenzakalelayo;ama-circuit breaker nawo anemisebenzi eminingi efana nokugcwala ngokweqile kanye nokuvikela isifunda esifushane, kodwa uma kunenkinga ngomthwalo ekugcineni okuphansi, ukugcinwa kuyadingeka.Indima ye-circuit breaker, kanye nebanga le-creepage le-breaker circuit akwanele.
Manje sekukhona i-circuit breaker enomsebenzi wokuzihlukanisa, ohlanganisa imisebenzi ye-breaker circuit evamile kanye ne-isolation switch.I-circuit breaker enomsebenzi wokuzihlukanisa nayo ingaba iswishi yokuzihlukanisa ngokomzimba.Eqinisweni, ukushintshwa kwe-isolation ngokuvamile akukwazi ukusetshenziswa ngomthwalo, kuyilapho i-breaker circuit inemisebenzi yokuvikela efana nesekhethi emfishane, ukuvikela ukulayisha ngokweqile, i-undervoltage nokunye.
Incazelo enemininingwane yomgomo wokusebenza wama-circuit breaker
Okuyisisekelo: Idivayisi elula yokuvikela isekethe yi-fuse.I-fuse iwucingo oluncane kakhulu, olunomgodla ovikelayo oxhunywe kusekethe.Lapho isifunda sivaliwe, wonke ama-currents kufanele ageleze nge-fuse - okwamanje ku-fuse kufana ne-current kwamanye amaphuzu kumjikelezo ofanayo.Le fuse iklanyelwe ukuvuthela lapho izinga lokushisa lifinyelela izinga elithile.I-fuse eshaywayo ingakha isekethe evulekile evimbela amandla angaphezu kwamandla ekulimazeni izintambo zendlu.Inkinga ngefuse ukuthi isebenza kanye kuphela.Noma nini lapho i-fuse ishaywa, kufanele ishintshwe kufakwe entsha.I-circuit breaker ingenza umsebenzi ofanayo njenge-fuse, kodwa ingasetshenziswa ngokuphindaphindiwe.Uma nje i-current ifinyelela ezingeni eliyingozi, ingakwazi ukudala isekethe evulekile ngokushesha.
Umgomo oyisisekelo wokusebenza: Intambo ebukhoma kusekethe ixhunywe kuzo zombili iziphetho zeswishi.Uma iswishi ibekwe esimweni OKUVULIWE, imanje igeleza isuka kutheminali engezansi, ngozibuthe kagesi, isixhumi esithintayo esinyakazayo, isixhumi esimile, futhi ekugcineni isiphetho esiphezulu.I-current ingakwazi ukudonsa uzibuthe kagesi.Amandla kazibuthe akhiqizwa uzibuthe kagesi ayanda njengoba ukwanda kwamanje, futhi uma okwamanje kuncipha, amandla kazibuthe ayancipha.Lapho i-current igxumela emazingeni ayingozi, uzibuthe kagesi ukhiqiza amandla kazibuthe anele ukudonsa induku yensimbi exhunywe ekuxhumekeni kweswishi.Lokhu kutshekisa i-contactor ehambayo kude ne-static contactor, iphula isifunda.Umsinga nawo uphazamisekile.Ukuklanywa kwemichilo ye-bimetal kusekelwe esimisweni esifanayo, umehluko wukuthi esikhundleni sokunika amandla ama-electromagnets, amapheshana avunyelwe ukugoba ngokwawo ngaphansi kwamandla aphezulu, okwenza kusebenze ukuxhumana.Amanye ama-circuit breaker agcwele iziqhumane ukuze asuse iswishi.Lapho i-current idlula izinga elithile, into eqhumayo iyathungela, yona ishayele ipiston ukuvula iswishi.
Okuthuthukisiwe: Ama-circuit breaker athuthuke kakhulu aqeda izinto zikagesi ezilula ezivuna izinto zikagesi (ama-semiconductor) ukuze kuqashwe amazinga amanje.Isiphazamisi se-ground fault circuit (GFCI) wuhlobo olusha lwe-circuit breaker.Le breaker yesifunda ayivimbeli nje ukulimala kwe-wiring endlini, kodwa futhi ivikela abantu ekushayweni kukagesi.
Umgomo othuthukisiwe wokusebenza: I-GFCI ihlezi iqapha intambo yezintambo ezimaphakathi nezibukhoma kuyisekethe.Uma konke kuhamba kahle, i-current kufanele ifane ncamashi kuzo zombili izintambo.Uma intambo ebukhoma isisekelwe phansi ngokuqondile (njengokungathi othile ngephutha ethinta intambo ebukhoma), i-current on the live wire izogxuma kungazelelwe, kodwa intambo emaphakathi ngeke inyuke.I-GFCI ivala ngokushesha isekethe lapho ithola lesi simo ukuze ivimbele ukulimala kukagesi.Ngenxa yokuthi i-GFCI ayidingi ukuthi ilinde okwamanje ukuthi ikhuphukele kumazinga ayingozi ukuze ithathe isinyathelo, isabela ngokushesha kakhulu kunama-circuit breaker.
Isikhathi sokuthumela: Mar-30-2023