Uyazi ukuthi yini ama-circuit Breaker?

Ayini Ama-Circuit Breaker?

Iswishi kagesi eyenzelwe ukuvikela isekethe kagesi ekulimaleni okubangelwa ugesi omningi/ukulayisha ngokweqile noma isekethe emfushane yaziwa ngokuthi i-circuit breaker. Umsebenzi wayo oyinhloko ukuphazamisa ugesi ngemuva kokuba ama-relay okuvikelayo ebona inkinga.

Umsebenzi Weswishi Yokuphula Izakhi Zesekethe.

I-circuit breaker isebenza ngokuba yidivayisi yokuphepha ngaleyo ndlela ivimbele ukulimala kwama-motor kanye nezintambo lapho ugesi ogeleza nge-electric circuit udlula imikhawulo yawo yokuklama. Lokhu ikwenza ngokususa ugesi kwi-circuit lapho kuvela isimo esingaphephile.

Zisebenza Kanjani Iziphuli Zesekethe ze-DC?

Njengoba igama labo lisho, ama-circuit breaker e-Direct Current (DC) avikela amadivayisi kagesi asebenza ku-direct current. Umehluko omkhulu phakathi kwe-direct current kanye ne-alternating current ukuthi i-voltage output ku-DC ayiguquki. Ngokuphambene nalokho, i-voltage output ku-Alternating Current (AC) ijikeleza izikhathi eziningana ngomzuzwana ngamunye.

Uyini Umsebenzi We-DC Circuit Breaker?

Izimiso ezifanayo zokuvikela ukushisa kanye nozibuthe ziyasebenza kuma-DC breaker njengoba zisebenza kuma-AC circuit breaker:
Ukuvikelwa kokushisa kuyayiphazamisa i-DC circuit breaker lapho ugesi udlula inani elilinganisiwe. Ukushisa kokuxhumana kwe-Bimetallic kuyakhula futhi kuyayiphazamisa i-circuit breaker kule ndlela yokuvikela. Ukuvikelwa kokushisa kusebenza ngokushesha ngoba ugesi ukhiqiza ukushisa okwengeziwe ukuze kwandiswe futhi kuvulwe uxhumano lukagesi njengoba ugesi ukhulu. Ukuvikelwa kokushisa kwe-DC circuit breaker kuvikela ugesi ogcwele ngokweqile ophakeme kancane kunogesi ojwayelekile osebenzayo.
Uma kukhona ama-fault currents aqinile, ukuvikelwa kukazibuthe kuyayiphazamisa i-DC circuit breaker, futhi impendulo ihlala ishesha. Njengama-AC circuit breakers, ama-DC circuit breakers anamandla okuphuka amele i-fault current ebaluleke kakhulu engaphazanyiswa.
Iqiniso lokuthi ugesi umi njalo kuma-circuit breaker e-DC lisho ukuthi i-circuit breaker kumele ivule ukuxhumana kukagesi kude ukuze iphazamise ugesi wephutha. Ukuvikelwa okunamandla kwe-DC circuit breaker kuma-short circuit breaker kuvikela kuma-short circuit nasemaphutheni kukhulu kakhulu kunokulayishwa ngokweqile.

Izinhlobo Ezintathu Ze-Miniature Circuit Breaker:

Uhlobo B (uhambo oluphindwe kathathu kuya kahlanu lwamanje).
Uhlobo C (uhambo oluphindwe ka-5-10 lwamanje olulinganiselwe).
Uhlobo D (uhambo oluphindwe izikhathi eziyi-10-20 lwamanje).