Isiphazamisi se-vacuum seswishi yekhefu lokulayisha (203) Isithombe Esifakiwe

Isiphazamisi se-vacuum sokushintshwa kwekhefu lokulayisha (203)

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo emfushane yomkhiqizo:

Indlela yokusebenza yangaphandle ishayela othintana naye ohambayo, ovula futhi avale isifunda esixhunyiwe.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.
Kuma-circuit breaker, izinto zokuxhumana ze-vacuum-interrupter ngokuyinhloko ziyingxubevange ye-copper-chromium engu-50-50.Angase enziwe ngokushisela ishidi lengxubevange ye-copper-chrome endaweni engaphezulu nephansi yokuxhumana phezu kwesihlalo sokuxhumana esenziwe ngethusi elingenawo umoya-mpilo.Ezinye izinto, njengesiliva, i-tungsten ne-tungsten compounds, zisetshenziswa kweminye imiklamo yeziphazamisi.Isakhiwo sokuthinta isiphazamisi se-vacuum sinomthelela omkhulu kumthamo waso wokuphuka, ukuqina kukagesi kanye nezinga lokunqunywa kwamanje.
Lapho inqamula inani elithile lamanje, ngesikhathi sokuhlukaniswa koxhumana nabo abashukumisayo nabaqinile, lamanje liyancipha kuze kube yilapho abathintwayo bavele bahlukane, okuholela ekwenyukeni okukhulu kokumelana phakathi kwama-electrode kanye nokwanda okusheshayo kwezinga lokushisa, kuze kube ukuhwamuka kwensimbi ye-electrode kwenzeka, futhi ngasikhathi sinye, kwakheka amandla enkambu kagesi aphezulu kakhulu, okuholela ekuphumeni okunamandla kakhulu kanye nokuqhekeka kwegebe, okuholela ku-vacuum arc.Lapho i-voltage yefrikhwensi yamandla isondele ku-zero, futhi ngesikhathi esifanayo, ngenxa yokwanda kwebanga lokuvula lokuxhumana, I-plasma ye-vacuum arc ihlakazeka ngokushesha nxazonke.Ngemuva kokuthi i-arc current idlule ku-zero, i-medium egebeni lokuxhumana ishintsha ngokushesha ukusuka ku-conductor ukuya ku-insulator, ngakho-ke i-current iyanqanyulwa.Ngenxa yesakhiwo esikhethekile sothintana naye, igebe lokuxhumana lizokhiqiza insimu yamagnetic longitudinal ngesikhathi se-arcing.Le nkundla kazibuthe ingenza i-arc isatshalaliswe ngokulinganayo endaweni yokuxhumana, igcine i-voltage ephansi ye-arc, futhi yenze igumbi lokucisha i-arc le-vacuum libe nesivinini sokuthola kabusha samandla e-post arc dielectric, okuholela emandleni amancane e-arc kanye nesilinganiso esincane sokugqwala.