Isiphazamisi seVacuum yeMV VCB(iqokobhe leceramic, Umbane olinganisiweyo: 7.2kV-12kV)

I-vacuum circuit breaker ine-high insulating medium yokuphela kwe-arc xa kuthelekiswa nenye i-breaker circuit.Uxinzelelo ngaphakathi kwe-vacuum interrupter malunga ne-10-4 ye-torrent kwaye kolu xinzelelo, ii-molecules ezimbalwa zikhoyo kwi-interrupter.I-vacuum circuit breaker ineempawu ezimbini ezimangalisayo.
Imvulophu yangaphandle ye-vacuum circuit breaker yenziwe ngeglasi kuba imvulophu yeglasi inceda ekuhloleni i-breaker evela ngaphandle emva kokusebenza.Ukuba iglasi iba lubisi ukusuka ekugqityweni kwayo kwasekuqaleni kwesipili esisiliva, oko kubonisa ukuba i-breaker ilahlekelwa yi-vacuum.
Ukunqunyulwa kwangoku kwi-vacuum circuit breaker kuxhomekeke kuxinzelelo lomphunga kunye neempawu zokukhutshwa kwe-electron yezinto zoqhagamshelwano.Inqanaba lokunqunqa liphinde liphenjelelwe yi-thermal conductivity-ezantsi i-thermal conductivity, ephantsi yinqanaba lokusika.
Kuyenzeka ukunciphisa inqanaba langoku apho ukunqunyulwa kwenzeka khona ngokukhetha imathiriyeli yoqhagamshelwano ekhupha umphunga wesinyithi owaneleyo ukuvumela umsinga ukuba ufike kwixabiso eliphantsi kakhulu okanye ixabiso elingu-zero, kodwa oku akufane kwenzeke njengoko kuchaphazela kakubi amandla edielectric. .
Amanyathelo okuthintela ukugqithiswa kwamandla.I-vacuum circuit breaker inomsebenzi omhle wokuqhawula.Ngamanye amaxesha xa kuphulwa umthwalo wokufakelwa, ukugqithisa okuphezulu kuveliswa kuzo zombini iziphelo ze-inductance ngenxa yokutshintsha ngokukhawuleza kwe-loop yangoku.Ngoko ke, kwii-transformers zohlobo olomileyo kunye nezinye izixhobo ezinokumelana nombane ophantsi we-impulse, kungcono ukufaka izixhobo zokukhusela i-overvoltage, ezifana ne-metal oxide arresters.