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Igumbi lokucisha i-vacuum arc, elaziwa nangokuthi i-vacuum switch tube, liyingxenye eyinhloko yokushintshwa kwamandla.Umsebenzi wayo oyinhloko ukwenza isifunda sicime ngokushesha i-arc futhi sicindezele amandla amanje ngemva kokunqamula ukunikezwa kwamandla ngokusebenzisa i-vacuum insulation enhle kakhulu ku-tube, ukuze kugwenywe izingozi nezingozi.Isetshenziswa kakhulu ezinhlelweni zokudlulisa amandla kanye nokusabalalisa amandla, kanye nezinhlelo zokusabalalisa ezifana ne-metallurgy, izimayini, i-petroleum, imboni yamakhemikhali, ujantshi, ukusakaza, ukuxhumana, ukushisa kwe-industrial high-frequency, njll Inezici zokonga amandla, ukonga impahla, ukuvimbela umlilo, ukuvimbela ukuqhuma, umthamo omncane, impilo ende yesevisi, izindleko eziphansi zokulungisa, ukusebenza okuthembekile futhi akukho ukungcola.Igumbi lokucisha i-arc le-vacuum lihlukaniswe laba yigumbi lokucisha i-arc le-breaker circuit, switch switch kanye ne-vacuum contactor.Igumbi lokucisha i-arc le-circuit breaker lisetshenziselwa ikakhulukazi iziteshi ezingaphansi kanye nezinsiza zegridi yamandla emkhakheni wamandla, futhi igumbi lokucisha i-arc lokushintsha komthwalo kanye ne-vacuum contactor lisetshenziselwa ikakhulukazi abasebenzisi bokugcina begridi yamandla.
Isiphazamisi se-vacuum sihlanganisa umkhono oqondisayo wokulawula othintana naye onyakazayo futhi uvikele izimbongolo ezivalayo ekujikeni, okungafinyeza ukuphila kwaso kakhulu.
Nakuba amanye amadizayini esiphazamisi se-vacuum enokuxhumana okulula kwezinqe, abathintwayo ngokuvamile balolongwa ngezikhala, ama-ridge, noma ama-grooves ukuze kuthuthukiswe ikhono labo lokunqamula imisinga ephezulu.I-arc current egeleza koxhumana nabo abanomumo ikhiqiza amandla kazibuthe kukholamu ye-arc, abangela ukuthi indawo yokuxhumana ye-arc ihambe ngokushesha phezu kokuxhumana.Lokhu kunciphisa ukuguga kokuxhumana ngenxa yokuguguleka kwe-arc, encibilikisa insimbi yokuxhumana lapho kuxhunywana khona.
Bambalwa kuphela abakhiqizi beziphazamisi ze-vacuum emhlabeni wonke abakhiqiza into yokuxhumana ngokwayo.Izinto ezisetshenziswayo eziyisisekelo, ithusi ne-chrome, zihlanganiswa zibe yinto enamandla yokuxhumana ngokusebenzisa inqubo yokuncibilika kwe-arc.Izingxenye ezingahluziwe eziwumphumela zicutshungulwa ku-RMF noma kumadiski okuxhumana we-AMF, namadiski e-AMF afakiwe akhishwe ekugcineni.