Ukuphepha okubalulekile kanye nemishini esebenza kahle emkhakheni wokusabalalisa amandla kagesi aphakathi nendawo

Iswishi yokulayisha engu-12kV yangaphakathi ye-SF₆ iyiswishi yomthwalo we-AC enezigaba ezintathu ezinamandla kagesi olinganiselwe ongu-12kV, elungele ukufakwa endlini. Isebenzisa igesi ye-SF₆ njengendawo yokuvikela neyokucima i-arc. Ngokuyinhloko isetshenziselwa ukuvula nokuvala umthamo wamanje ohlelweni lwamandla, kanye nokuvala i-current-circuit current (ayikwazi ukuvula i-short-circuit current futhi idinga ukuhlanganiswa ne-fuse ukuze kuzuzwe ukuvikelwa kwe-short-circuit). Ngesikhathi esifanayo, ingakwazi ukufeza imisebenzi yokuzihlukanisa kanye nesisekelo somugqa, inikeze ukuvikelwa kokuphepha kokugcinwa kwemishini yokusabalalisa.

Isimiso sokusebenza esiyinhloko salokhushintshaisekelwe ezintweni ezinhle kakhulu zegesi ye-SF₆: Igesi ye-SF₆ inamandla okuvikela aqine ngokwedlulele, ibe ngaphezu kokuphindwe izikhathi ezingu-2.5 kunomoya. Egunjini legesi elivaliwe, lingakwazi ukuhlukanisa ngokuphumelelayo izingxenye ezibukhoma ku-casing, ukuvimbela ukuvela kwezingozi zokuvuza. Phakathi nenqubo yokucisha i-arc, lapho iswishi ivuliwe, othintana nabo abahambayo nabamile bayahlukana, bakhiqize i-arc. Igesi ye-SF₆ ishiswa yi-arc futhi ingena kwi-ionization, idonsa inani elikhulu lamandla e-arc. Ngasikhathi sinye, ukuguquguquka kwegesi kanye nemiphumela yokupholisa kusetshenziselwa ukucisha ngokushesha i-arc, ukugwema ukushiswa koxhumana nabo noma ukubangela ukwehluleka kwemishini. Imikhiqizo eminingi isebenzisa indlela yokucima i-arc-yokucisha kazibuthe. Lapho uvula iswishi, i-arc iyazungeza futhi inwebe emkhakheni we-electromagnetic okhiqizwe uzibuthe ongunaphakade, ithuthukisa ngokwengeziwe ukusebenza kahle kokucisha i-arc, iqinisekisa ukusebenza okuphansi kwe-overvoltage, ukusebenza kokuvula okuzinzile, ngisho nokufeza ukusebenza okuhle kakhulu kokuvula i-current rated at zero pressure.

Izinto ezisetshenziswayo zivame ukuhlanganisa imisebenzi emithathu "yokuvala, ukuphula, nokubeka phansi". Ngokuxhumanisa kwemishini, ukulandelana kokusebenza kulawulwa ngokuqinile ukuze kuqinisekiswe ukuthi "imishini ayikwazi ukuvalwa ngaphandle kokumiswa phansi, futhi inkinobho yokulayisha ayikwazi ukuvalwa ngeswishi yokubeka phansi inganqanyulwa". Lokhu ngokuyisisekelo kugwema izingozi zokuphepha ezingaba khona ezibangelwa ukusebenza okungalungile futhi kuqinisekisa ukuphepha kwabasebenzi nokusebenza kwemishini.