Imveliso
Isiphazamisi seVacuum yeMV VCB(iqokobhe leceramic, Umbane olinganisiweyo: 7.2kV-12kV)
Inkcazo emfutshane yemveliso:
I-breaker esebenzise i-vacuum njenge-arc extinction medium ibizwa ngokuba yi-vacuum circuit breaker.Kule breaker yesiphaluka, uqhagamshelwano olusisigxina kunye noluhambayo lufakwe kwi-vacuum interrupter evalwe ngokusisigxina.I-arc iphelile njengoko abafowunelwa behlulwe kwi-vacuum ephezulu.Isetyenziswa ikakhulu kumbane ophakathi ukusuka kwi-11 KV ukuya kwi-33 KV.
Xa i-arc ivulwa ngokuhambisa ngaphandle abafowunelwa kwi-vacuum, uphazamiseko lwenzeka kwi-zero yokuqala yangoku.Ngokuphazamiseka kwe-arc, amandla abo e-dielectric anyuka ukuya kwisantya samawaka exesha xa kuthelekiswa nabanye abaqhekezayo.Ezi zakhiwo zimbini zingasentla zenza ukuba i-breakers isebenze kakuhle, incinci kwaye ingabizi kwiindleko.Ubomi babo benkonzo nabo bukhulu kakhulu kunanoma yimuphi omnye umqhubi wesiphaluka, kwaye phantse akukho kugcinwa kuyadingeka.
Iimbonakalo
1. I-arc icinyiwe kwisitya esivaliweyo, kwaye i-arc kunye negesi eshushu ayibonakali.Njengecandelo elizimeleyo, igumbi lokucima i-arc kulula ukuyifaka kunye nokucima.
2. Ukucocwa koqhagamshelwano kuncinci kakhulu, ngokuqhelekileyo malunga ne-10mm, kunamandla amancinci okuvala, indlela elula kunye nobomi benkonzo ende.
3. Ixesha lokucima i-arc lifutshane, i-voltage ye-arc iphantsi, amandla e-arc amancinci, ukulahleka koqhagamshelwano kuncinci, kwaye amaxesha okuphuka amaninzi.
Qwalasela
Lawula ngokungqongqo ukuhamba koqhagamshelwano.I-stroke ye-vacuum circuit breaker ifutshane.Ngokubanzi, i-stroke yoqhagamshelwano ye-vacuum circuit breaker ene-voltage elinganisiweyo ye-10 ~ 15kV yi-8 ~ 12mm kuphela, kwaye uqhagamshelwano ngohambo luyi-2 ~ 3mm kuphela.Ukuba i-stroke yoqhagamshelwano inyuka kakhulu, uxinzelelo olugqithisileyo luya kuveliswa kwi-bellows emva kokuba i-breaker circuit ivaliwe, ibangela umonakalo kwi-bellows kunye nokutshabalalisa i-vacuum kwi-shell evaliweyo ye-breaker circuit.Sukucinga ngempazamo ukuba umgama omkhulu wokuvula uluncedo kwi-arc yokucima, kwaye ngokungenasizathu wandise uhambo loqhagamshelwano lwe-vacuum circuit breaker.
