Umsebenzi we-High Voltage Circuit Breaker

I-Circuit breaker sisixhobo sombane kwisixokelelwano samandla, esinokuqhawula ngokuzenzekelayo xa umgca okanye isitishi sifutshane okanye sigqithise ukukhusela izixhobo zamandla kunye nokhuseleko lomntu.
I-high-voltage circuit breakerikakhulu yenziwe inkqubo yokucima i-arc, inkqubo yokuphazamisa, isixhobo solawulo kunye nesiqalelo sokubeka iliso.
Ukuba iswitshi ayinako ukuqhawuka ngexesha, isixhobo sombane okanye icandelo lombane liya kuyicima indawo enempazamo ngokuzenzekelayo ukukhusela ukhuseleko lomntu kunye nokhuseleko lwesixhobo.

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Mna, inkqubo yokucima iArc
Inkqubo yokucima i-arc ye-high-voltage circuit breaker iquka isixhobo sokuvelisa i-arc, isixhobo sokucima i-arc kunye negumbi lokucima i-arc.
Kwinkqubo ye-voltage ephantsi, ngokuqhelekileyo isebenzisa i-air interrupter ukucima i-arc, kuba kwi-air interrupter ayinayo i-electric current, ngoko ayikwazi ukuba ne-arc yokuvelisa.
Kwinkqubo yamandla ombane aphezulu, ukucima i-arc yokucima i-vacuum idla ngokusetyenziswa, kusetyenziswa ifuthe le-thermal kunye ne-electromagnetic force yangoku kwi-vacuum arc yokucima igumbi.
Kwiisekethe ze-HVDC, ukucima i-arc kaninzi kwenziwa nge-extrusion yomatshini ngenxa ye-DC enkulu yangoku kunye nokuvela lula kokudubula kwe-arc.
Ngenxa yomthamo omkhulu wesaphuli sesekethe yombane ophezulu, igumbi lokucima i-arc yomoya lisetyenziswa kakhulu.
II, Inkqubo yoqhawulo
I-breaker of high voltage circuit breaker ikakhulu ibandakanya i-electromagnetic, i-coil ye-electromagnetic coil, njl.
Umsebenzi we-electromagnetic kukuvelisa intsimi yamagnetic ecinezela i-arc ngokuchasene nedyokhwe.
Umsebenzi wekhoyili ye-electromagnetic kukuthumela umqondiso wepulse xa iswitshi ivuliwe okanye icinyiwe kwisilawuli, kwaye umlawuli ugqibezela umsebenzi wokuqhawula ngokulawula ikhoyili ye-electromagnetic ukuze uvule okanye ucime.
Ikhoyili ye-electromagnetic ikwasebenza njengokuhlukaniswa kwe-electromagnetic.
Idyokhwe ifakwe kwisaphuli sesekethe, esibangela ukuba amandla ombane we-arc avelise umhlaba wemagnethi edyokhweni, ebonelelwa ngababini bezixhobo ezijikelezayo ezijikelezayo, ngaloo ndlela kuthintela i-arc ukuba isuswe kwisekethe yidyokhwe kwaye ibangele i-armature. ingozi.
III, Izixhobo zokulawula
Izaphuli zesekethe ngokuqhelekileyo zamkela izixhobo zokulawula ezikhethekileyo, ezifana ne-microcomputer circuit breakers (izixhobo zokukhusela ii-microcomputer), ezinemisebenzi yokulawula nokukhusela.
Umsebenzi wesixhobo sokukhusela i-microcomputer kukuvelisa i-voltage okanye umqondiso wangoku kwisekethe xa kukho impazamo, emva koko uyiguqule ibe ngumqondiso wombane okanye umqondiso we-pulse ngokusebenzisa i-amplifying circuit, kwaye uqaphele umsebenzi wokusebenza kwe-breaker circuit ngokusebenzisa i-relay okanye ezinye izinto zokulawula ( ezifana ne-reactor, isolator, njl.).
Ukongeza, kukho izitshixo zoomatshini ezisetyenziselwa ukusebenza kokutshintsha okuzenzekelayo, okufana ne-SCR, i-SCR rectifier diode, njl.
Ukuze kuphuculwe ukuthembeka kunye nokhuseleko, izixhobo zokukhusela i-microcomputer zihlala zisebenzisa izixhobo ze-analog zokuvelisa ukubonelela ngemisebenzi yokukhusela ngakumbi, njenge-analog input / output (AFD), i-voltage / i-current combination (AVR) okanye isampuli yangoku ye-transformer voltage.
IV. Amacandelo okubeka iliso
I-breaker circuit ixhotywe ngesethi yezinto ezizenzekelayo zokubeka iliso, ezisetyenziselwa ukufumanisa imeko engaqhelekanga kwinkqubo yokuphulwa kwe-circuit breaker.
I-high-voltage breakers eziqhelekileyo zi-SF6, i-SF7, i-vacuum kunye nezinye iindidi, ngokweentlobo ezahlukeneyo zinokwahlulwa zibe yi-voltage elinganisiweyo 1000V, 1100V kunye ne-2000V.
Ngophuhliso lwesayensi kunye nethekhinoloji, ii-breakers ze-HV zihlaziywa rhoqo.Okwangoku, i-SF6 i-circuit breaker kunye ne-SF7 i-circuit breaker isetyenziswa ngokubanzi kwilizwe lethu.
V, Iimfuno zofakelo kunye nezilumkiso zezaphuli zesekethe zombane ophezulu
Xa ufaka i-high voltage circuit breaker, ingqwalasela iya kuhlawulwa ekuphakameni kwendawo yokufakela kunye nomgama;imodi ye-wiring ehambelanayo iya kukhethwa kwi-breaker circuit ngokwezinga le-voltage kunye nenqanaba lesiphaluka esifutshane.
Ukuze ugweme iingxaki ezinje ngempembelelo ye-thermal kunye ne-electromagnetic effect xa i-short circuit current isenzeka, kuya kuqatshelwa ukuba indawo yokufakela i-breaker circuit iya kuba kude neziko lomthwalo kangangoko kunokwenzeka;ngexesha lofakelo, kuya kuqinisekiswa ukuba i-high-voltage circuit breaker inokuthi ihlawuliswe ngokufanelekileyo kwisixhobo sokusabalalisa amandla, kwaye indlela yokusebenza ye-breaker circuit iya kuba nendawo eyaneleyo yokuhamba;kunye nesikhundla sendlela yokusebenza ye-breaker circuit iya kuba lula ukwahlula ukunikezelwa kwamandla okusebenza kumbane osebenzayo.