Ngabe i-circuit breaker ixhunywe kanjani?Ingabe i-null line kwesokunxele noma kwesokudla?
Osebenza ngogesi jikelele uzokweluleka umnikazi ukuthi afake ama-circuit breaker ukuze avikele ukuphepha kukagesi wasekhaya.Lokhu kungenxa yokuthi i-circuit breaker ingakwazi ukuzihambela iyonqamula ugesi lapho ulayini wasekhaya wehluleka, ngaleyo ndlela kunciphe ukulahleka kwengozi.Kodwa uyazi ukuthi i-circuit breaker ixhunywe kanjani?Ingabe futhi ishiywe umugqa ongenalutho womlilo wesokudla?Bheka ukuthi umshini kagesi uthini.
1. Yini i-circuit breaker?
I-circuit breaker iyisisetshenziswa esishintshayo esikwaziyo ukuvala, ukuthwala nokuphula intambo ngaphansi kwezimo ezijwayelekile zesekhethi, kanye nokuthwala nokuphula intambo ngaphansi kwezimo zesekhethi ezingavamile (kuhlanganise nezimo zesekhethi emifushane) phakathi nenkathi ethile yesikhathi.Kuwuhlobo lokushintsha, kodwa okuhlukile kusishintshi esivame ukusisebenzisa, i-circuit breaker ngokuyinhloko iwukunqamula i-current of high-voltage circuit, lapho ukwehluleka kwesistimu yethu, kunganqamula okwamanje, ukuze kuvimbele ukugeleza okungathí sina. ukuthuthukiswa kwesimo, ukuvikela impahla yabantu.Kuyidivayisi enhle yokuvikela ukuphepha.
Ukusebenzisa i-circuit breaker kwenza ukuphila kwethu kukhululeke, kancane kancane kube ezimpilweni zabantu, ukuze kusilethele impilo ephephile.
2. Kwesobunxele null, kwesokudla umlilo
Ngangingayazi incazelo ekuqaleni.Kancane kancane, njengoba ngifunda okwengeziwe, ngathola ukwazi ukuthi lokho okubizwa ngokuthi “umlilo kwesokunxele, kwesokudla” kuwuhlelo nje lwesokhethi -- ebheke ujeke, ujeke wesokunxele uwumugqa ongenalutho, ujeke wesokudla umugqa womlilo, yilokho kuphela.
Isokhethi kuzintambo, akumele ishiywe njengomlilo ongenalutho kwesokudla.Amanye amatheminali ahlelwa ngokuvundlile, kodwa uma ubhekene nawo (ngemuva kwesokhethi), alandelana ngokuphambene namasokhethi.Amanye amatheminali ahlelwa ngobude, ingasaphathwa eyesobunxele nakwesokudla.
ngakho-ke, kusadingeka ukulandela ilebula yeposi letheminali lapho uxhuma izintambo.Uma imakwe ngo-L, ulayini womlilo uzoxhunywa.U-N umele umugqa ongenalutho.
3. Ukuma kwezintambo kwe-null line kanye ne-null line
Wonke amaswishi avuzayo kufanele axhunywe kumugqa ongenalutho.Uma ungekho umugqa ongenalutho, kungenxa yokuxhuma okungalungile.Iswishi yokuvuza yasendlini, ngokuya ngenani lezigxobo, ingahlukaniswa ngezinhlobo ezimbili: ukuvuza okungu-1P nokuvuza okungu-2P.
Zombili izinguquko zinamasethi amabili amatheminali (okukodwa kokungena nokukodwa kubalwa njengesethi eyodwa).Elinye lamaqembu amabili wamatheminali okuvuza okungu-1P linophawu luka-N. Uma kuxhunywa izintambo, imigqa engenalutho kufanele ixhunywe kuleli qembu lamatheminali kanye nelinye iqembu lezintambo zomlilo.Ungakhathazeki ngomlilo ongakwesokunxele ongenalutho.Isiqondiso se-null line kanye nolayini womlilo weswishi asilungisiwe, futhi ukuhleleka kwamatheminali ezinhlobo ezahlukene namamodeli kuhlukile.Lapho kuxhunywa izintambo, indawo yetheminali engu-N yangempela iyobusa.
Akukho ukuhlonza amabhulokhi amabili wokuvuza kwe-2P, okusho ukuthi singakhetha i-oda lezintambo ngokungafanele.Kodwa-ke, ngokuvamile kuyanconywa ukuthi ubhekisele ekulandeleni kwezintambo zokuvuza kwe-1P ebhokisini lokusabalalisa ukuze kuqinisekiswe ukulandelana kwezintambo okufanayo phakathi kwakho kokubili.Ngakho-ke ukuhlelwa komugqa kuzoba ukubukeka okungcono futhi kukulungele ukugcinwa ngokuzayo.
Kungakhathaliseki ukuthi hlobo luni lokushintsha kokuvuza, ungaxhumi umugqa ongenalutho kusishintshi.
4. Kufanele ixhunywe kanjani i-circuit breaker?
Ake sithathe i-circuit breaker ye-2P njengesibonelo, sibhekane ne-circuit breaker njengesithombe esilandelayo.
Amatheminali amabili aphezulu ngokuvamile amatheminali angenayo kanti amatheminali amabili aphansi ayitheminali ephumayo.Njengoba lokhu kuyi-circuit breaker ye-2P, ingakwazi ukulawula ukuvulwa nokuvalwa kwamasekhethi amabili.Uma kukhona inhloko-dolobha engu-N ohlangothini olulodwa lwetheminali, lesi siphetho sixhunywe kumugqa onguziro, kanti enye ixhunywe kulayini womlilo.
Eqinisweni, ama-circuit breaker afana nalawa angenhla ngokuvamile anamandla kakhulu (kumandla asetshenziswa yindlu).Ukuze uphephe, ama-breaker 1P amaningana azokwengezwa ngemuva kwesekethe.Ama-circuit breaker anjalo ngokuvamile anamandla aphansi.
Ngesekhethi ye-1P, kulungile ukuxhuma ngokuqondile intambo ebukhoma kusuka ku-2P circuit breaker.Yiqiniso, ku-circuit breaker ye-2P, ungaqhubeka nokuxhuma umugqa womlilo kanye nomugqa ongenalutho.Uma lungekho uphawu luka-N ku-breaker yesifunda, ngokuvamile lulandelwa umlilo ongakwesokunxele kanye ne-null yesokudla.
5. Uma ucingo luhlehliswa, kuzokwenzekani?
Xhuma i-null line engalungile kanye nolayini womlilo we-2P circuit breaker kanye ne-2P leakage circuit breaker akuyona inkinga enkulu.Okuwumthelela kuphela ukuthi kubukeka kungekufishane, kuwukuphazamiseka ekulungiseni ngoba uchwepheshe udinga ukuphinde athole i-null line kanye nelayini yomlilo.
Uma inqanyulwa, i-1P+N circuit breaker kanye ne-1P leakage circuit breaker zinganqamula intambo yomlilo----umugqa oxhunywe kutheminali engamakiwe.Uma i-null line kanye nolayini womlilo kuxhunywe ngokungalungile, lapho isihlukanisi sesifunda sinqanyulwa, i-null line inqanyulwa ngempela.Noma ingekho i-current kusekethe, isekhona i-voltage.Uma umuntu eyithinta, uzoshaqeka ngogesi.
I-null line ye-1P circuit breaker iku-null discharge, ngakho-ke akulula ukuxhuma okungalungile.Umphumela woxhumo olungalungile lwe-1P yesiphakeli sesekethe siyefana naleyo yokuhlehla komugqa ongenalutho kanye nolayini womlilo we-1P+N ye-circuit breaker.
Isikhathi sokuthumela: Jun-28-2022