Uma kuqhathaniswa namanye ama-circuit breaker, umgomo wokusebenza we-vacuum circuit breaker uhlukile kulowo we-arc extinguishing medium.Ayikho i-conductive medium ku-vacuum, eyenza i-arc icishe ngokushesha.Ngakho-ke, isikhala phakathi koxhumana nabo abaguquguqukayo nabaqinile be-breaker circuit sincane kakhulu.
Izici ze-insulation ze-vacuum
I-vacuum inezici zokuvikela eziqinile.Kuma-circuit breakers, igesi incane kakhulu, ukuhamba kwamahhala kwama-molecule egesi kukhulu uma kuqhathaniswa, futhi amathuba okushayisana mancane kakhulu.Ngakho-ke, ukuhlukana kokushayisana akusona isizathu esiyinhloko sokuqhekeka kwegebe lesikhala sangempela, kodwa izinhlayiya zensimbi ezidonswa yi-electrode ngaphansi kwesenzo senkundla kagesi enamandla kakhulu yizona zinto eziyinhloko ezibangela ukulimala kokushisa.
Amandla okufaka i-vacuum gap awahlobene kuphela nobukhulu begebe kanye nokufana kwensimu kagesi, kodwa futhi athinteka kakhulu yizici zezinto ze-electrode kanye nezimo ezingaphezulu.Ngaphansi kwesimo segebe lebanga elincane (2-3 mm), igebe levacuum linezici zokwahlukanisa eziphakeme kunomoya womfutho ophezulu kanye negesi ye-SF6, okuyisizathu esenza ibanga lokuvula lokuxhumana le-vacuum circuit breaker ngokuvamile libe lincane.
Umthelela wezinto ze-electrode ku-voltage yokuwohloka ubonakala ikakhulukazi emandleni emishini (amandla aqinile) wezinto zokwakha kanye nendawo yokuncibilika yezinto zensimbi.Lapho amandla okunyakazisa ephakama nendawo encibilikayo, ayanda amandla okufakwa kwe-electrode ngaphansi kwe-vacuum.
isimiso sokusebenza
Lapho umoya we-vacuum ephezulu ugeleza endaweni eyiziro, i-plasma ihlakazeka ngokushesha futhi icime i-arc ukuze kuqedelwe injongo yokunqamula wamanje.
Isikhathi sokuthumela: Aug-04-2022