Indima yevacuum zesekethe breakers – zithini iziphuli zesekethe ezifunxayo? Indima ye-vacuum circuit breakers Xa i-vacuum circuit breaker ikwindawo evaliweyo, i-insulation yayo emhlabeni yenziwa 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. Ukuqhekeka okubangelwa yi-electrode engalunganga: Ngaphantsi kwendawo yombane eyomeleleyo, iqondo lokushisa leeprotrusions kwindawo engafanelekanga ye-electrode landa ngenxa yesiphumo sokufudumala kwe-Joule ye-current emission emission current, kwaye xa iqondo lokushisa lifikelela 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.
Ixesha lokuposa: Aug-09-2022