Ukubaluleka kanye nomsebenzi wama-circuit breaker amancane

Isihloko: Ukubaluleka kanye nomsebenzi weama-breaker circuit amancane

ethula:

Ama-circuit breaker amancane (MCBs)idlala indima ebalulekile ekuqinisekiseni ukuphepha nokwethembeka kwezinhlelo zikagesi.Lawa madivaysi abe yingxenye ebalulekile yokufakwa kukagesi yesimanje, esetshenziselwa ukuvimbela amaphutha kagesi futhi anciphise umonakalo ongaba khona.Lesi sihloko sihlola ukubaluleka kanye nomsebenzi walaba nogada abahlangene, okubonisa ukubaluleka kwabo emkhakheni wobunjiniyela bakagesi.

1. Qonda ama-circuit breaker amancane:

A i-miniature circuit breaker, evame ukufushaniswa ngokuthiI-MCB, iwukushintsha kukagesi okuzenzakalelayo okuklanyelwe ukuvikela amasekhethi kagesi kumasekethe adlulele kanye namafushane.Lawa madivayisi avame ukufakwa kuma-switchboards, amadivaysi abathengi namabhokisi e-fuse njengomugqa wokuqala wokuzivikela ekuhlulekeni kukagesi.

2. Izici eziyinhloko nezingxenye:

Ama-MCBszaziwa ngosayizi wazo ohlangene, ngokuvamile zihlala endaweni eyodwa eyimojuli ngaphakathi kwebhodi lokushintsha.Kodwa-ke, usayizi wabo omncane uyaphikisana nokubaluleka kwawo ekugcineni ukuphepha kukagesi.Izingxenye eziyinhloko zeI-MCBhlanganisa indlela yokushintsha, abathintwayo kanye nendlela yohambo.

I-switch mechanism ivumela ukusebenza mathupha, okwenza umsebenzisi akwazi ukuvula noma ukuvala isekethe.Oxhumana nabo, ngakolunye uhlangothi, banesibopho sokuqhuba nokuphazamisa ukugeleza kwamanje kumjikelezo.Ekugcineni, indlela yohambo ithola i-overcurrent noma isifunda esifushane bese icuphaI-MCBukuvula umjikelezo, ngaleyo ndlela uvikele uhlelo.

3. Ukuvikelwa kwamanje:

Omunye wemisebenzi esemqoka ye-I-MCBukuvimbela overcurrent.I-Overcurrent yenzeka lapho ukwanda kwamanje kugeleza kumjikelezo kunomthamo wayo olinganiselwe, okungaholela ekushiseni ngokweqile kanye nokulimala okungenzeka ezingxenyeni zikagesi.Ama-MCBsphendula lesi simo ngokuphazamisa ngokushesha umjikelezo kagesi, ngaleyo ndlela uvimbele ukushisa ngokweqile nokunciphisa ingozi yomlilo kagesi.

4. Ukuvikelwa kwesekethe emfushane:

Enye indima ebalulekileI-MCBukuvimbela i-short circuit.Isekethe emfishane yenzeka lapho ukuxhumeka ngengozi (ngokuvamile ngenxa yokungalungi kahle noma ukwehluleka kokufakwa kwe-insulation) kubangela ukugeleza kwamanje okweqile kusekethe.Isekhethi emfishane ingabangela umonakalo omkhulu ocingweni futhi ingase ibangele ngisho nomlilo.Isikhathi sokuphendula esisheshayo se-MCB siyenza ikwazi ukuthola amasekhethi amafushane futhi iphazamise isekethe ngaphambi kokuthi kwenzeke umonakalo omkhulu.

5. Umehluko ngefuse:

Yize womabili ama-MCB namafuse ehlinzeka ngokuvikeleka kumaphutha kagesi, kunomehluko omkhulu phakathi kwakho kokubili.Ama-Fuse aqukethe izintambo ezincane noma izicucu zensimbi ezincibilika lapho kugeleza kakhulu, okuphula isekethe.Lapho i-fuse iqhuma, idinga ukushintshwa.Ngokuphambene, ama-MCB awadingi ukushintshwa ngemva kokukhubeka.Kunalokho, zingasethwa kabusha kalula ngemva kokuba ukwehluleka kwempande sekuphenywe futhi kwaxazululwa, okuzenza zibe lula futhi zingabizi ngokuhamba kwesikhathi.

6. Ukukhetha nokucwasa:

Ezinhlelweni zikagesi eziyinkimbinkimbi lapho eziningiAma-MCBsafakwe ochungechungeni, imiqondo yokukhetha nokucwasa iba semqoka.Ukukhetha kusho ikhono le-MCB lokuhlukanisa isifunda esinephutha ngaphandle kokuphazamisa lonke uhlelo.Umehluko, ngakolunye uhlangothi, uqinisekisa ukuthi i-MCB eseduze nephutha ihamba kuqala, ngaleyo ndlela kuncishiswe ukuphazamiseka ekufakweni.Lezi zimfanelo zivumela impendulo eqondiswe ekuhlulekeni kukagesi, iqinisekisa ukuqhubeka kwezinsizakalo ezibalulekile ngenkathi ithola futhi ibhekana nembangela yokwehluleka.

Ekuphetheni:

Ama-circuit breaker amancanengokungangabazeki ziyingxenye ebalulekile yengqalasizinda kagesi yesimanje.Ngokuhlinzeka ngokuvikela okudlulele kanye nokufushane kwesekethe, ama-MCB asiza ukuvikela okokusebenza, ukunciphisa umonakalo kanye nokuvimbela imililo kagesi.Usayizi wabo ohlangene, ukusebenziseka kalula, kanye nekhono lokusetha kabusha ngemva kohambo kuwenza abe enye indlela engabizi kakhulu kunamafusi endabuko.Kubalulekile ukukhumbula ukuthi ukufakwa okufanele nokugcinwa njalo kwama-MCB kubalulekile ohlelweni lukagesi olusebenza kahle noluthembekile.Ngokuqonda ngempumelelo nokusebenzisa ama-circuit breaker amancane, singathuthukisa ukuphepha okuphelele nokusebenza kahle kokufakwa kukagesi.