Uhlolojikelele Vacuum circuit breaker

Ukwethulwa kwe-Vacuum circuit breaker

I-“Vacuum Circuit Breaker” ithola igama layo ngenxa yokuthi i-arc extinguishing medium kanye ne-insulation medium yegebe lokuxhumana ngemva kokucisha kwe-arc kokubili kuyi-vacuum ephezulu;inezinzuzo zobukhulu obuncane, isisindo esincane, esilungele ukusebenza njalo, futhi akukho sondlo sokucisha i-arc.Izinhlelo zokusebenza kugridi yamandla zisabalele ngokuqhathaniswa.I-high voltage vacuum circuit breaker iyidivayisi yokusabalalisa amandla yasendlini kusistimu ye-AC yezigaba ezintathu ezingu-3 ～ 10kV, 50Hz.Ingasetshenziselwa ukuvikela nokulawula okokusebenza kukagesi ezinkampanini zezimboni nezimayini, izimboni zamandla, kanye neziteshi ezincane.Ukuze kugcinwe futhi kusetshenziswe njalo, i-circuit breaker ingalungiswa kukhabhinethi ephakathi, i-double-layer cabinet kanye nekhabhinethi engaguquki yokulawula nokuvikela imishini kagesi ene-voltage ephezulu.

Umlando we-Vacuum circuit breaker

Ngo-1893, i-Rittenhouse e-United States yenza isiphakamiso sokuphazanyiswa kwe-vacuum ngesakhiwo esilula futhi yathola ilungelo lobunikazi lokuklama.Ngo-1920, i-Swedish Foga Company yenza i-vacuum switch yokuqala.Imiphumela yocwaningo eyanyatheliswa ngo-1926 neminye iphinde ibonise ukuthi kungenzeka yini ukuphula i-current endaweni engenalutho.Kodwa-ke, ngenxa yomthamo omncane wokuphuka kanye nomkhawulo wezinga lokuthuthukiswa kobuchwepheshe be-vacuum kanye nezinto ze-vacuum, akuzange kusetshenziswe ngendlela engokoqobo.Ngokuthuthukiswa kobuchwepheshe be-vacuum, ngawo-1950, i-United States yenza kuphela iqoqo lokuqala lokushintshwa kwe-vacuum elifanele ukusika amabhange e-capacitor nezinye izidingo ezikhethekile.I-breaking current isesezingeni lama-amps angu-4 ayizinkulungwane.Ngenxa yenqubekelaphambili kubuchwepheshe bokuncibilikisa impahla ye-vacuum kanye nempumelelo ocwaningweni lwezakhiwo zokuxhumanisa ama-vacuum switch, ngo-1961, kwaqala ukukhiqizwa kwama-vacuum circuit breaker ane-voltage engu-15 kV kanye namandla aphukayo angu-12.5 kA.Ngo-1966, ama-vacuum circuit breaker angu-15 kV, 26 kA, kanye nama-31.5 kA akhiqizwa, ukuze i-vacuum circuit breaker ingene kusistimu yamandla amakhulu, enamandla amakhulu.Maphakathi nawo-1980, amandla okuphuka kwe-vacuum circuit breakers afinyelela ku-100 kA.I-China yaqala ukwenza amaswishi evacuum ngo-1958. Ngo-1960, i-Xi'an Jiaotong University kanye ne-Xi'an Switch Rectifier Factory ngokuhlanganyela bakha iqoqo lokuqala lamaswishi evacuum angu-6.7 kV anamandla okuphuka angu-600 A. Ngokulandelayo, enziwa i-10 kV kanye nomthamo wokuphuka we-1.5.Qian'an izigaba ezintathu vacuum switch.Ngo-1969, i-Huaguang Electron Tube Factory kanye ne-Xi'an High Voltage Apparatus Research Institute yakhiqiza i-10 kV, i-2 kA yesigaba esisodwa esishintshayo se-vacuum switch.Kusukela ngawo-1970, i-China ikwazile ukuzithuthukisa ngokuzimela futhi ikhiqize ukushintshwa kwe-vacuum kwemininingwane ehlukahlukene.

Ukucaciswa kwe-Vacuum circuit breaker

Ama-circuit breaker ngokuvamile ahlukaniswa ngamaleveli kagesi amaningi.Uhlobo lwe-voltage ephansi ngokuvamile lusetshenziselwa ukusetshenziswa kukagesi ongaqhumisi.Njengezimayini zamalahle nokunye.

Isilinganiso samanje sifinyelela ku-5000A, amandla aphukile afinyelela ezingeni elingcono lika-50kA, futhi athuthuke afinyelela ku-voltage engu-35kV.

Ngaphambi kweminyaka yawo-1980, ama-vacuum circuit breaker ayesesigabeni sokuqala sokuthuthukiswa, futhi ayelokhu ehlola ubuchwepheshe.Kwakungenakwenzeka ukwenza izindinganiso zobuchwepheshe.Kwaze kwafika ngo-1985 lapho izindinganiso zomkhiqizo ezifanele zenziwa.