Umehluko phakathi kwe-DC MCCB ne-AC MCCB

Ezweni lanamuhla elithuthukile kwezobuchwepheshe, ukuphepha kukagesi kubaluleke kakhulu. Ngakho-ke, kubalulekile ukuqonda umehluko phakathi kwe-DCI-MCCB (I-Molded Case Circuit Breaker) kanye ne-AC MCCB. Lawa madivayisi adlala indima ebalulekile ekuvikeleni amasekethe ekugcwaleni ngokweqile kanye namasekethe amafushane. Ake sihlole ubunzima balezi zinhlobo ezimbili zama-circuit breaker futhi siqonde izici zawo ezihlukile.

Okokuqala, ake sichaze ukuthi iyini i-MCCB. I-MCCB, noma i-Molded Case Circuit Breaker, iyithuluzi elivikelayo elenzelwe ukuphazamisa isekethe kagesi uma kwenzeka i-overload noma i-short circuit. Iqukethe iyunithi yokuhamba kanye nohlaka, futhi umsebenzi wayo oyinhloko ukulawula nokuvikela uhlelo lukagesi. Isetshenziswa kabanzi ezinhlotsheni ezahlukahlukene zezicelo kufaka phakathi izindawo zokuhlala, zezentengiselwano kanye nezezimboni, okwenza kube yingxenye ebalulekile yengqalasizinda yamandla ephephile nethembekile.

Manje, ake sibheke umehluko phakathi kwama-circuit breaker e-AC molded case kanye nama-DC molded case circuit breaker. Umehluko omkhulu yikhono lawo lokusebenza ezinhlotsheni ezahlukene zamanje. Ama-AC MCCB aklanyelwe ngqo ukuphatha i-alternating current, uhlobo oluvame kakhulu lwamanje olutholakala ezinhlelweni eziningi zikagesi. Ama-DC MCCB, ngakolunye uhlangothi, aklanyelwe ukuphatha amandla e-DC futhi afanelekela izinhlelo ezithile ezifana nezinhlelo zelanga, zebhethri kanye ne-traction. Lo mehluko obalulekile ohlotsheni lwamanje uvumela la ma-circuit breaker ukuthi ahlangabezane nezidingo zamandla ezahlukene.

Ngaphezu kwalokho, ukwakheka kanye nesakhiwo sangaphakathi sama-AC molded case circuit breakers kanye nama-DC molded case circuit breakers nakho kuhlukile. I-AC MCCB ine-thermal-magnetic trip unit esebenza ngokusebenzisa izinto ezishisayo ukuthola izinto ezisebenzisa amandla amaningi kanye ne-magnetic ukuthola ama-short circuit. Le ndlela yokuvikela ekabili iqinisekisa ukusebenza okuphumelelayo nokuthembekile. Ngokuphambene nalokho, ama-DC MCCB avame ukuqukatha i-electronic trip unit. Idivayisi isebenzisa ama-electronics athuthukile ukunikeza ukuvikelwa okunembile nokunembile ngokumelene nokulayisha ngokweqile kanye nama-short circuit ezinhlelweni ze-DC.

Esinye isici esibalulekile okufanele sicatshangelwe amandla okuphuka kwe-MCCB. Amandla okuphuka abhekisela kumandla okuphuka aphezulu kakhulu angaphulwa yi-circuit breaker ngaphandle kokulimaza izingxenye zayo zangaphakathi. Ama-AC MCCB ngokuvamile aklanyelwe ukumelana nokuphazamisa amandla okuphuka aphezulu njengoba efaneleka ezinhlelweni zikagesi ezinkulu. Ngokuphambene nalokho, ama-DC MCCB avame ukukhiqizwa ukuze aphathe amandla okuphuka aphansi ngoba izinhlelo ze-DC ngokuvamile zinezimo zokuphuka eziphansi ezitholakalayo uma kuqhathaniswa nezinhlelo ze-AC. Lo mehluko kumandla okuphuka uqinisekisa ukuvikelwa okuhle kohlobo ngalunye lwamandla okuphuka.

Ngaphezu kwalokho, kubalulekile ukuqaphela ukuthi akuwona wonke ama-MCCB afanayo. Abakhiqizi abahlukene bangakhiqiza ama-MCCB anemisebenzi ehlukene kanye namazinga okusebenza ahlukene. Lapho ukhetha i-molded case circuit breaker, izici ezifana nekhwalithi yezinto ezisetshenzisiwe, ukuthembeka kweyunithi yohambo, kanye nedumela lilonke lomenzi kumele zicatshangelwe. Ukukhetha uphawu oluthembekile nolunedumela elihle kuqinisekisa ukuthi i-MCCB inikeza isivikelo esingcono kakhulu kumasekethe akho futhi yandisa isikhathi sawo sokuphila.

Ekuphetheni, ukuqonda umehluko phakathi kwe-DC MCCB ne-AC MCCB kubalulekile kunoma ubani osebenza ngezinhlelo zikagesi. Umehluko ohlotsheni lwamanje, ukwakheka, ukwakhiwa kwangaphakathi, kanye namakhono okuphuka kwenza lawa ma-circuit breaker ahluke komunye nomunye. Ngakho-ke, kubalulekile ukukhetha i-MCCB efanele isicelo sakho esithile. Ngokutshala imali ku-MCCB ethembekile nekhwalithi ephezulu evela kumkhiqizi odumile, ungaqinisekisa ukuphepha nokusebenza kwesekethe yakho iminyaka ezayo.