Amagqabantshintshi ngevacuum yesiphaluka

Ukuqaliswa kwe-Vacuum circuit breaker

"I-Vacuum Circuit Breaker" ifumana igama layo ngenxa yokuba i-arc yokucima iphakathi kunye ne-insulation medium ye-gap yoqhagamshelwano emva kokucima i-arc zombini i-vacuum ephezulu;ineenzuzo zobukhulu obuncinci, ubunzima obulula, obufanelekileyo ekusebenzeni rhoqo, kwaye akukho kugcinwa kokucima i-arc.Usetyenziso kwigridi yamandla zixhaphake kakhulu.I-high voltage vacuum circuit breaker sisixhobo sokuhambisa amandla angaphakathi kwi-3 ～ 10kV, 50Hz inkqubo ye-AC yesigaba sesithathu.Ingasetyenziselwa ukhuseleko kunye nolawulo lwezixhobo zombane kumashishini oshishino kunye nemigodi, amashishini ombane, kunye nezitishi.Ukugcinwa kunye nokusetyenziswa rhoqo, i-breaker circuit ingaqwalaselwa kwikhabhinethi yeziko, i-double-layer cabinet kunye nekhabhinethi esisigxina yokulawula nokukhusela izixhobo zombane eziphezulu.

Imbali ye-Vacuum i-circuit breaker

Ngo-1893, i-Rittenhouse e-United States yenza isindululo sokuphazamiseka kwevacuum kunye nesakhiwo esilula kwaye yafumana i-patent yoyilo.Ngowe-1920, iNkampani yeFoga yaseSweden yenza iswitshi yokuqala yokucoca.Iziphumo zophando ezipapashwe ngo-1926 kunye nezinye zikwabonisa ukuba kunokwenzeka ukuqhawula umsinga kwi-vacuum.Nangona kunjalo, ngenxa yomthamo omncinci wokuqhawula kunye nokunciphisa izinga lophuhliso lwetekhnoloji ye-vacuum kunye nezixhobo ze-vacuum, ayizange isetyenziswe ngokusebenzayo.Ngophuhliso lwetekhnoloji ye-vacuum, kwi-1950s, i-United States yenza kuphela ibhetshi yokuqala yokutshintshwa kwe-vacuum efanelekileyo ukunqumla iibhanki ze-capacitor kunye nezinye iimfuno ezikhethekileyo.Ukuphulwa kwangoku kusekho kwinqanaba le-4 lamawaka amps.Ngenxa yenkqubela phambili yetekhnoloji yokunyibilikisa imathiriyeli yevacuum kunye nokuphumelela kuphando lwezakhiwo zonxibelelwano lwevacuum, ngo-1961, ukuveliswa kweziqhekeza zesekethe nge-voltage ye-15 kV kunye nokuqhawuka kwangoku kwe-12.5 kA kwaqala.Ngo-1966, i-15 kV, i-26 kA, kunye ne-31.5 kA i-vacuum breaker circuits zenziwa ilingo, ukuze i-vacuum circuit breaker ingene kwi-high-voltage, inkqubo yamandla amakhulu.Phakathi kwiminyaka yee-1980, amandla okuqhawula i-vacuum circuit breakers yafikelela kwi-100 kA.I-China yaqala ukuphuhlisa i-vacuum switch ngo-1958. Ngo-1960, iYunivesithi yase-Xi'an Jiaotong kunye ne-Xi'an Switch Rectifier Factory ngokudibeneyo baphuhlisa ibhetshi yokuqala ye-6.7 kV yokutshintsha i-vacuum enomthamo wokwaphuka we-600 A. Emva koko, zenziwa kwi-10 kV. kunye nomthamo wokuqhawuka we-1.5.Qian'an izigaba ezintathu vacuum switch.Ngomnyaka we-1969, i-Huaguang Electron Tube Factory kunye ne-Xi'an High Voltage Apparatus Research Institute yavelisa i-10 kV, i-2 kA yesigaba esisodwa sokutshintsha i-vacuum ngokukhawuleza.Ukususela ngo-1970, i-China iye yakwazi ukuphuhlisa ngokuzimeleyo kwaye ivelise utshintsho lwe-vacuum yezinto ezahlukeneyo.

Inkcazo ye-vacuum circuit breaker

Izaphuli zesekethe zevacuum zihlala zohlulwa zibe ngamanqanaba ombane amaninzi.Uhlobo lwamandla ombane asezantsi lusetyenziswa ngokubanzi kusetyenziso lombane olungaqhushumba.Njengemigodi yamalahle njalo njalo.

Umyinge olinganisiweyo ufikelela kwi-5000A, i-breaking current ifikelela kumgangatho ongcono we-50kA, kwaye iphuhliswe kwi-voltage ye-35kV.

Ngaphambi kweminyaka yee-1980, abaphuli beesekethe be-vacuum babekwinqanaba lokuqala lophuhliso, kwaye babehlala behlola iteknoloji.Kwakungenakwenzeka ukwenza imigangatho yobugcisa.Kwakungekho de kwango-1985 apho imigangatho yemveliso efanelekileyo yenziwa.