Izindaba Zenkampani

Isizathu esiyinhloko sokuthi isixhumi esingu-380V AC sishise amandla singenxa yokukhetha okungalungile kwamandla kagesi wekhoyili. I-voltage yekhoyili yesixhumi se-AC kufanele ifane nevoltheji yokuphakela amandla.

Ayini ama-circuit breaker, ama-switch switch kanye nezixhumi? Cishe iningi lezisebenzi zikagesi zicace kakhulu. Kodwa uma kukhulunywa ngomehluko nokusetshenziswa phakathi kwama-breaker circuit, ama-switch switch and disconnectors, izisebenzi eziningi zikagesi zingase zazi eyodwa kuphela kodwa hhayi enye, kanti kwabanye abaqalayo bakagesi abazi nokuthi yini okufanele bayibuze. Sonke siyazi ukuthi i-circuit breaker ingavala, ithwale futhi iphule i-current ngaphansi kwezimo ezijwayelekile zesekethe, futhi ingavala, ithwale futhi iphule i-current ngaphansi kwezimo zesekethe ezingavamile (kuhlanganise nezimo ze-short-circuit) phakathi nesikhathi esinqunyiwe. I-switch switch iyidivayisi eshintshayo phakathi kwe-circuit breaker kanye neswishi ehlukanisayo. Inomshini wokucisha i-arc olula, onganqamula umthamo olinganiselwe wamanje kanye nomthamo othile wokulayishwa ngokweqile, kodwa awukwazi ukunqamula umsinga wesiyingi esifushane.

Isixhumi se-AC siyingxenye yokulawula emaphakathi. Inzuzo yayo isekukwazini kwayo ukuxhuma njalo nokunqamula imigqa nokulawula imisinga emikhulu ngokufaka okuncane. Ukusebenza ngokuhlanganyela ne-thermal overload relay kunganikeza nokuvikelwa okuthile kokulayishwa okungaphezulu kwezinto zokulayisha. I-AC contactor futhi iyidivayisi esetshenziswa kakhulu yokulawula i-low-voltage ekulawuleni okuzenzakalelayo kanye nezinhlelo zokushayela zikagesi.

I-POINT I/O iwumndeni wemikhiqizo ye-modular ye-I/O elungele izinhlelo zokusebenza ezidinga ukuguquguquka nezindleko eziphansi zobunikazi. Ngamamojula wokuminyana wesiteshi esisodwa kuya kwayisishiyagalombili, okuhlanganisa nemojula eqondile ezilungiselela yona, ukumodela kwe-POINT I/O kunciphisa izindleko zesistimu nosayizi. Ikhono lokuhlanganisa i-I/O evamile nephephile linikeza ukuguquguquka okukhulu nakakhulu namathuba okumiswa, ngaphandle kwezidingo zohlelo lokusebenza.

Ayini ama-circuit breaker, ama-switch switch kanye nezixhumi? Cishe iningi lezisebenzi zikagesi zicace kakhulu. Kodwa uma kukhulunywa ngomehluko nokusetshenziswa phakathi kwama-breaker circuit, ama-switch switch and disconnectors, izisebenzi eziningi zikagesi zingase zazi eyodwa kuphela kodwa hhayi enye, kanti kwabanye abaqalayo bakagesi abazi nokuthi yini okufanele bayibuze. Sonke siyazi ukuthi i-circuit breaker ingavala, ithwale futhi iphule i-current ngaphansi kwezimo ezijwayelekile zesekethe, futhi ingavala, ithwale futhi iphule i-current ngaphansi kwezimo zesekethe ezingavamile (kuhlanganise nezimo ze-short-circuit) phakathi nesikhathi esinqunyiwe.

1. Isixhumi se-AC sithatha idivayisi yokucima i-arc ye-grid plate, kuyilapho i-DC contactor isebenzisa idivayisi yokucima i-arc evunguzayo.

Imikhiqizo yochungechunge lwe-Schneider Electric yokulawulwa kwezimoto nokuvikela imikhiqizo ye-TeSys izoshintshelwa ngokusemthethweni emkhiqizweni omusha wombala ompunga omnyama ngoDisemba 8, 2021.