I-high-voltage circuit breakeribhekisela kwisekethe inokudityaniswa, ikhutshwe kwaye iguqulelwe kwizixhobo zombane.Ngokumalunga nokuba kukho yangoku kwisekethe, i-HV i-breaker circuit yahlulwe ibe yi-switch-load kunye ne-no-load switch.Inomsebenzi ophezulu wokucima i-arc kwaye unokucima okanye ukucima i-over-voltage kunye nokhuseleko lwangoku kwindlela yamandla ngaphakathi kwexesha elimiselweyo.Kwiigridi ezinomthamo we-500 kV okanye ngaphezulu, ukusebenza rhoqo kuyafuneka ukuze kuqinisekiswe ukuguquguquka okwaneleyo kunye nokuzinza kwenkqubo.
Iimpawu zokusebenza
I-1, I-breaker circuit inemisebenzi yokukhusela i-voltage kunye nokukhusela i-short-circuit, kwaye ingasetyenziselwa ukukhusela nokulawula imigca, izixhobo zokuhambisa kunye nemithwalo.
I-2, I-breaker yesiphaluka inomsebenzi wokucima i-arc, kwaye inokunqumla ngokukhawuleza kwaye ithembekile i-arc ngaphakathi kwe-10 ms.
I-3, I-breaker circuit ineempawu zokuvula okufutshane kunye nexesha lokuvala, kwaye ifanelekile kwiindawo zokusebenza rhoqo.
I-4, I-breaker yesiphaluka inokuqonda umsebenzi wokwahlula-kungabikho umthwalo, oququzelela ukusebenza rhoqo kunye nokunciphisa ixesha lokunqunyulwa kwamandla.
5、 Ayinakugcinwa simahla kuwo wonke umjikelo wobomi;ngexesha lokucima, ixesha lokungabikho kwe-welding yokuhamba kunye noqhagamshelwano olusisigxina kwaye akukho mandla ombane we-electromagnetic kwi-coil yokuvala i-breaker circuit ifutshane, eqinisekisa ukuba i-breaker circuit ayiyi kutshisa.
6, Ineempawu zomthamo omncinci kunye nobunzima obulula.
7, igumbi lokucima i-arc yokucima i-arc liya kwamkelwa kwaye isixhobo solawulo lokucima i-arc siya kusetyenziswa endaweni yesixhobo sokusebenza ngesandla;Igumbi lokucima i-arc liya kuthembeka, lidibene kuyilo kwaye lincinci kubungakanani bofakelo.
Umgaqo wokusebenza
Xa i-breaker circuit inamandla, uqhagamshelwano oluhambayo kwindlela yokuqhuba intwasahlobo yokuvala ngokusebenzisa indlela yokuhambisa ukuvala i-breaker circuit.Intwasahlobo yasentwasahlobo yenza i-breaker ivale endaweni.
Xa i-breaker yesiphaluka iphukile, abafowunelwa abahambahambayo kunye ne-static bayahlukana, kwaye abafowunelwa abahambahambayo kwindlela baphinda bahlaziywe kuqala, kwaye emva koko isiphaluka sinqunyulwa ngokuqhuba ukuhlukana kunye nokuvala iintonga zokudibanisa phantsi kwesenzo samandla entwasahlobo.Isikhundla soqhagamshelwano oluhambayo kunye noqhagamshelwano olusisigxina lulawulwa yindlela yokugcina amandla entwasahlobo ukugcina umnxibelelwano kwindawo ethile.
Ukongeza, kukho ezinye izesekeli ezifana ne-latching switch, njl., Ezenza ukuba i-breaker circuit igcine indawo ethile ngexesha lokuqhawula kunye nokuvala, ukuze kuthintelwe ukwahlukana kunye nokungahambi kakuhle.
Uphawu lolwakhiwo
1. I-circuit breaker yenziwe ngegobolondo, iqela loqhagamshelwano, igumbi lokucima i-arc, umnxeba wokucima i-arc, uqhagamshelwano oluncedisayo kunye nendlela yokusebenza.Ngenxa yokuba i-contact kunye ne-interrupter chamber ye-breaker circuit yahlulwe kwaye idityaniswa ngamandla ombane we-electromagnetic, isakhiwo soqhagamshelwano sinempembelelo enkulu ekusebenzeni kwe-breaker circuit.
2. I-Circuit breakers iya kwahlulwa ibe yi-air insulated circuit breakers kunye ne-vacuum arc interrupters ngokweendlela ezahlukeneyo zokuphazamisa i-arc media, kwaye zahlulwe zibe yintlobo yokutshintsha umthwalo kunye nohlobo lwe-vacuum arc interrupter ngokwemiqathango eyahlukeneyo yokusetyenziswa.
3. Ukuze wenze ukwahlula okuthembekileyo kunye nokudibanisa phakathi kweqela loqhagamshelwano kunye neqela loqhagamshelwano, indlela yokunciphisa indawo icwangciswe kwiqela loqhagamshelwano.Indawo yokutshintsha ilawulwa sisiphatho somda.Izaphuli ezahlukeneyo zineendlela ezahlukeneyo zomda, kodwa zonke zinemisebenzi ehambelanayo.
Ukuhlelwa
I-1, Ngokwendlela yokusebenza yabaphuli beesekethe, kukho iindidi ezimbini ze-breaker: i-breaker-load kunye ne-no-load breaker.
I-2, i-breakers circuit ingahlelwa kwi-oil circuit breaker, i-vacuum circuit breaker kunye ne-sulphur hexafluoride i-breaker circuit ngokwe-medium ye-arc yokucima.
3, Ngokomgaqo wokucima i-arc, kukho iindidi ezimbini zokucima i-arc, enye i-arc yokucima ngaphandle kwe-arc, enye i-arc yokucima ngaphandle kwe-arc.Ngenxa yokuba akukho siqhekeza se-arc kwinkqubo yokuvala, ngenxa yamandla ombane, akunakwenzeka ukufezekisa ukuphela ngokupheleleyo.
Eyangaphambili isebenzisa umoya njengesixhobo sokugquma kwaye le yokugqibela isebenzisa i-sulphur hexafluoride njengesixhobo sokugquma.
I-5, ngokokuhlelwa kwemisebenzi yokukhusela, inokwahlulwa ibe yinkqubo yokukhusela impazamo yesiphaluka esifutshane kunye nokukhusela impazamo yesiphaluka esifutshane.
Ixesha lokuposa: Feb-20-2023