Ukuqonda ama-MCB (ama-Miniature Circuit Breakers) - Asebenza Kanjani nokuthi Kungani Abalulekile Ekuphepheni Kwesekethe

Ezweni lamasistimu kagesi namasekhethi, ukuphepha kubaluleke kakhulu.Enye yezingxenye ezibalulekile zokuqinisekisa ukuphepha nokuvikelwa kwesekethe yi-I-MCB (i-miniature circuit breaker).Ama-MCB aklanyelwe ukuvala amasekhethi ngokuzenzakalelayo lapho kutholwa izimo ezingavamile, ukuvimbela izingozi ezingaba khona njengamasekhethi amafushane nemililo kagesi.

Ngakho-ke, i-MCB isebenza kanjani ngempela?Ake sihlole ukusebenza kwangaphakathi kwalo mshini obalulekile.Kunezinhlobo ezimbili zoxhumana nabo ngaphakathi kwe-MCB - eyodwa ilungisiwe kanti enye iyakhipheka.Ngaphansi kwezimo ezivamile zokusebenza, laba othintana nabo bahlala bethintana, okuvumela okwamanje ukugeleza kumjikelezo.Kodwa-ke, lapho ukwanda kwamanje kudlula umthamo olinganiselwe wesekethe, abathintwayo abahambisekayo bayaphoqeleka ukuba banqamule koxhumana nabo abalungisiwe.Lesi senzo ngokuphumelelayo "sivula" isifunda, sinqamule umsinga futhi sivimbele noma yimuphi omunye umonakalo noma ingozi engaba khona.

Ikhono le-MCB lokuthola ngokushesha futhi ngokunembile umthamo wamanje oweqile futhi iphendule ngokuvala ngokushesha isekethe iyenza ibe yingxenye ebalulekile ezinhlelweni zikagesi.Isifunda esifushane senzeka lapho kukhona uxhumano lwengozi phakathi kwezintambo ezishisayo nezingathathi hlangothi, ezingabangela ukuqhuma okungazelelwe kwamandla.Uma i-MCB ingafakiwe, umthamo oweqile okhiqizwa isiyingi esifushane ungase ubangele ukushisa ngokweqile, ukuncibilika kwezinto zokufaka ugesi, noma ngisho nemililo kagesi.Ngokuphazamisa ngokushesha umjikelezo lapho kwenzeka isifunda esifushane, ama-circuits amancane adlala indima ebalulekile ekugwemeni izinhlekelele ezingase zibe khona.

Ngokungeziwe kumasekhethi amafushane, ama-MCB aphinde avikele kwamanye amaphutha kagesi njengokugcwala nokuvuza.Ukulayishwa ngokweqile kwenzeka lapho isekethe igcwele kakhulu, idonsa amandla amaningi, futhi ukuvuza kwenzeka lapho kunendlela engahlosiwe eya emhlabathini, okungase kubangele ukushaqeka kukagesi.Ama-MCB ayakwazi ukubona futhi aphendule kulawa maphutha, anikeze ukuphepha okwengeziwe ohlelweni lukagesi kanye nabantu abalusebenzisayo.

Ukubaluleka kwe-MCB akukhona nje ekusebenzeni kwayo;Usayizi wayo ohlangene kanye nokulula kokufakwa nakho kukwenza kube yisinqumo sokuqala sokuvikela umjikelezo.Ngokungafani namafuse endabuko, ama-MCB angasethwa kabusha ngemva kokukhubeka, asuse isidingo sokushintshwa njalo uma kwenzeka iphutha.Lokhu akugcini nje konga isikhathi nomzamo, kodwa futhi kunciphisa izindleko zokulungisa nokufaka esikhundleni.

Ekugcineni, ama-MCB angamaqhawe angaqashiwe okuphepha kukagesi, asebenza buthule ngemuva kwezigcawu ukuvikela amasekethe kanye nabantu abathembele kuwo.Ama-MCB ayakwazi ukuphendula ngokushesha ezimweni ezingavamile kumasekhethi futhi ayingxenye ebalulekile ekugcineni ukuphepha nobuqotho bezinhlelo zikagesi.Kungakhathaliseki ukuthi kusendaweni yokuhlala, yezohwebo noma yezimboni, ukuba khona kwe-MCB kuqinisekisa ukuthi amaphutha kagesi axazululwa ngokushesha, kuncishiswe ubungozi bomonakalo kanye nezingozi ezingaba khona.Njengoba ubuchwepheshe buqhubeka nokuthuthuka, ama-circuit breaker amancane ngokungangabazeki azohlala eyisisekelo sokuvikela isekethe, akunike ukuthula kwengqondo nokuqinisekisa ukuqhubeka kokunikezwa kwamandla.