Umkhiqizo
Isiphazamisi seVacuum se-MV VCB, VS1 ZN28 ZN63
Incazelo emfushane yomkhiqizo:
Isiphazamisi se-vacuum, esaziwa nangokuthi i-vacuum switch tube, siyingxenye eyinhloko yeswishi yamandla kagesi aphezulu aphakathi nendawo.Umsebenzi oyinhloko wesiphazamisi se-vacuum ukwenza isekethe ye-voltage ephakathi nendawo nephezulu inqamule ukunikezwa kwamandla kwegumbi lokucisha i-arc ye-vacuum yegobolondo le-ceramic ngokusebenzisa ukufakwa okuhle kakhulu kwe-vacuum ngaphakathi kweshubhu, engacisha ngokushesha i-arc futhi icindezele amandla amanje. , ukuze kugwenywe izingozi nezingozi.Isiphazamisi sevacuum sihlukaniswe ukusetshenziswa kwesiphazamisi kanye neswishi yokulayisha.Isiphazamisi se-circuit breaker sisetshenziswa kakhulu esiteshini esincane kanye nezinsiza zegridi yamandla emnyangweni wamandla kagesi.Iswishi yokulayisha isetshenziswa kakhulu kubasebenzisi betheminali begridi yamandla.
Ukusetshenziswa kwe-vacuum yokushintsha imisinga kagesi kwashukunyiswa ukuqaphela ukuthi igebe eliyisentimitha elilodwa eshubhuni ye-X ray lingamelana namashumi ezinkulungwane zama-volts.Nakuba amanye amadivaysi okushintsha i-vacuum ayenegunya lobunikazi phakathi nekhulu le-19, ayengatholakali ngokwentengiso.Ngo-1926, iqembu eliholwa yiRoyal Sorensen eCalifornia Institute of Technology laphenya ngokushintshwa kwe-vacuum futhi lahlola amadivaysi amaningana;izici ezibalulekile zokuphazamiseka kwe-arc ku-vacuum zaphenywa.USorenson wethula imiphumela emhlanganweni we-AIEE ngalowo nyaka, futhi wabikezela ukusetshenziswa kokuhweba kwamaswishi.Ngo-1927, uGeneral Electric wathenga amalungelo obunikazi futhi waqala ukuthuthukiswa kwezohwebo.Ukuwohloka Okukhulu Kwezomnotho kanye nokuthuthukiswa kwemishini yokushintsha uwoyela egcwele uwoyela kwabangela inkampani ukuba yehlise umsebenzi wokuthuthukiswa, futhi umsebenzi omncane obalulekile kwezohwebo wenziwa kumshini wokuvala amandla okuvala kuze kube ngawo-1950.
Izici
1. Indlela yokusebenza incane, ivolumu iyonke incane, futhi isisindo silula.
2. Amandla okulawula mancane, futhi umsindo wesenzo mncane ngesikhathi sokusebenza kokushintsha.
3. Indawo yokucima i-arc noma i-insulating medium ayisebenzisi amafutha, ngakho-ke ayikho ingozi yomlilo nokuqhuma.
4. Ingxenye yokuxhumana iyisakhiwo esivalwe ngokuphelele, esingeke sinciphise ukusebenza kwayo ngenxa yethonya lomswakama, uthuli, amagesi ayingozi, njll., futhi isebenza ngokuthembekile ngokusebenza okuzinzile kokuvala.
5. Ngemva kokuba i-vacuum circuit breaker ivuliwe futhi iphukile, i-medium phakathi kwama-fractures ilulama ngokushesha, futhi i-medium ayidingi ukushintshwa.
