Yintoni umsebenzi we-vacuum circuit breaker

Xa ii-vacuum circuit breakerikwindawo evaliweyo, ukugquma kwayo emhlabeni kwenziwa ngama-insulators afanelekileyo.Emva kokuba impazamo yomhlaba esisigxina yenzeke kwindlela eqhagamshelwe kwi-vacuum circuit breaker, kwaye indawo ye-fault point ayicocwanga emva kohambo lwe-circuit breaker, i-vacuum gap kwi-breaker circuit breaker nayo kufuneka ibe noxanduva lokugquma komhlaba. ibhasi yombane.Umsantsa wokugquma ivacuum phakathi kwabafowunelwa kufuneka umelane neevolthi ezahlukeneyo zokulungisa ngaphandle kokuqhekeka.Ke ngoko, iimpawu ze-insulation ze-vacuum gap ziye zaba ngumxholo wophando wangoku wokuphucula i-voltage yokwaphuka kwegumbi lokucima i-arc, kunye nokwenza i-vacuum ye-vacuum breaker yesekethe iphuhlise ukuya kwinqanaba eliphezulu lombane.Vacuum zesekethe izaphuli: 1. Umgama wokuvula uqhagamshelwano mncinane.Umgama wokuvula unxibelelwano lwe-10KV vacuum circuit breaker yi-10mm kuphela.Umatshini wokusebenza unamandla amancinci okusebenza phezulu nasezantsi, i-stroke encinci yecandelo lomatshini, kunye nobomi obude boomatshini.2. Ixesha lokutshisa i-arc lifutshane, kungakhathaliseki ukuba ubungakanani bokutshintsha kwangoku, ngokuqhelekileyo kuphela isiqingatha somjikelezo.3. Ngenxa yesantya esincinci sokunxiba sokuhanjiswa kunye nokuhanjiswa xa kuphulwa okwangoku, ubomi bombane bonxibelelwano bude, umthamo opheleleyo uphukile ngamaxesha angama-30-50, i-voltage elinganisiweyo iphukile ngaphezulu kwamaxesha angama-5000, ingxolo iphantsi. , kwaye ilungele ukusebenza rhoqo.4. Emva kokuba i-arc icinyiwe, isantya sokulungiswa kwezinto ze-gap zoqhagamshelwano zikhawuleza, kwaye iimpawu eziphosakeleyo zommandla osondeleyo wokuphuka zingcono.5. Incinci kwaye ilula ngobukhulu, ifanelekile ukuphula i-capacitive load current.Ngenxa yeenzuzo zayo ezininzi, isetyenziswa ngokubanzi kwizikhululo zokusasaza.Iimodeli zangoku zezi: ZN12-10, ZN28A-10, ZN65A-12, ZN12A-12, VS1, ZN30, njl. Indlela i-vacuum circuit breakers isebenza ngayo "I-vacuum circuit breaker" idume nge-arc yokucima umbane kunye ne-insulating medium of the isithuba soqhagamshelwano emva kokucima i-arc.Ineenzuzo zobukhulu obuncinci, ubunzima obulula, ubunzima obulula, njl. Kufanelekile ukusebenza rhoqo.Ngoko ke, isetyenziswa ngokubanzi kwinethiwekhi yokuhambisa.Umgaqo wokusebenza we-vacuum circuit breakers awunzima: 1. Ukuchithwa kwe-cathode-induced breakdown: Ngaphantsi kwendawo yombane eyomeleleyo, iqondo lobushushu leeprotrusions kumphezulu we-electrode negative liyanda ngenxa yesiphumo sokufudumeza kwe-Joule se-current emission emission current, kwaye xa ubushushu bufikelela kwindawo ebalulekileyo, iiprotrusions ziyanyibilika ukuvelisa umphunga, okukhokelela ekuphumeleleni.2. Ukuchithwa kwe-anode-induced breakdown: I-bombardment ye-anode itshisa inqaku ngenxa ye-ion beam ethunyelwe yi-anode, ivelisa ukunyibilika kunye nomphunga, kwaye ukuphuka kwe-gap kwenzeka.Iimeko zokuqhekeka kwe-anode zihambelana nokunyuka kwentsimi yombane kunye nokuwa kwesalathisi kunye nesithuba se-gap.Ukongezelela, ukuxhathisa kwesiphaluka se-vacuum circuit breaker iyona pyrogen ephambili echaphazela ukufudumeza, kunye nokuxhatshazwa kwesiphaluka segumbi lokucima i-arc ngokuqhelekileyo kubalela ngaphezu kwe-50% yokuxhatshazwa kwesekethe ye-vacuum circuit breaker.Ukuxhatshazwa kwesekethe ye-gap yoqhagamshelwano yiyona nto iphambili yokuxhatshazwa kwesekethe ye-vacuum interrupter.Ekubeni inkqubo yoqhagamshelwano itywinwe kwi-vacuum interrupter, ubushushu obuveliswayo bunokuchithwa ngaphandle kuphela ngeentonga ezihambayo kunye ne-static conducting.Umgaqo wokuqhekeka kwezi zithuba ze-vacuum ubonisa ukuba izinto zenqanaba le-vacuum kunye nomphezulu weqonga zizinto eziphambili zokugquma kwe-vacuum gap.