Isakhelo sesekethe yesakhelo (ACB)

Isakhelo sesekethe yesakhelo sikwabizwa ngokuba yi-universal circuit breaker.Zonke iinxalenye zayo zifakwe kwifreyimu yensimbi ye-insulated, ehlala ivulekile.Inokuxhotyiswa ngezixhobo ezahlukeneyo.Kukulungele ukubuyisela abafowunelwa kunye namacandelo, kwaye isetyenziswa kakhulu kwiswitshi ephambili ekupheleni kwamandla.Kukho i-electromagnetic, i-elektroniki kunye ne-intelligent over-current release.I-breaker circuit inamacandelo amane okukhusela: ukulibaziseka kwexesha elide, ukulibaziseka okufutshane, ngokukhawuleza kunye nephutha lomhlaba.Ixabiso lokumisela lokhuseleko ngalunye luhlengahlengiswa phakathi koluhlu oluthile ngokwenqanaba leqokobhe lalo.
I-breaker circuit breaker iyasebenza kwinethiwekhi yokusabalalisa kunye ne-AC 50Hz, i-voltage elinganisiweyo ye-380V kunye ne-660V, kunye ne-200a-6300a yangoku.Isetyenziselwa ikakhulu ukuhambisa amandla ombane kunye nokukhusela imigca kunye nezixhobo zokubonelela umbane kwi-overload, i-undervoltage, i-short circuit, i-single-phase grounding kunye nezinye iimpazamo.I-breaker circuit inemisebenzi emininzi yokukhusela ehlakaniphile kwaye inokufikelela ekukhuseleni okukhethiweyo.Ngaphantsi kweemeko eziqhelekileyo, ingasetyenziselwa ukutshintshwa komgca ongaqhelekanga.I-breaker circuit engaphantsi kwe-1250A ingasetyenziselwa ukukhusela ukugqithiswa kunye nesiphaluka esifutshane semoto kwinethiwekhi kunye ne-AC 50Hz yombane we-380V.
Isakhelo sohlobo lwesakhelo sesekethe sikwahlala sisetyenziswa kumgca ophumayo wokutshintsha okuphambili, iswitshi yokubopha ibhasi, iswitshi enkulu yokutya kunye nolawulo lweemoto ezinkulu kwicala le-400V le-transformer.

Isakhelo sethu sesakhelo sesakhelo sophawu lweYuye sigubungele yonke imisinga, ukuya kuthi ga kwi-6300A, kwaye siphumelele isatifikethi seCQC.

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Iimpawu ezisisiseko ze-breaker circuit

(1) Amandla ombane okusebenza alinganisiweyo i-Ue

I-voltage yokusebenza elinganisiweyo ibhekisela kwi-voltage ye-nominal ye-breaker circuit, enokusebenza ngokuqhubekayo phantsi kokusetyenziswa okuqhelekileyo kunye neemeko zokusebenza.
I-China ichaza ukuba amandla ombane aphezulu okusebenza ngamaxesha angama-1.15 ombane olinganisiweyo wenkqubo kwinqanaba lombane we-220kV nangaphantsi;Umgangatho wombane wama-330kV nangaphezulu li-1.1 lamaxesha ombane olinganisiweyo njengowona mbane uphezulu wokusebenza.I-breaker circuit inokugcina i-insulation phantsi kwe-voltage ephezulu yokusebenza kwenkqubo, kwaye inokwenza kwaye iphule ngokwemiqathango echaziweyo.

(2) Ikalwe ngoku (kwi)

Ireyithingi yangoku ibhekisa kungoku ukuba ukukhululwa kunokudlula ixesha elide xa ubushushu be-ambient bungaphantsi kwama-40 ℃.Kwi-breaker circuit kunye nokukhululwa kwe-adjustable, yiyona nto ikhoyo ngoku ukukhululwa kunokudlula ixesha elide.
Xa ubushushu be-ambient bungaphezulu kwe-40 ℃ kodwa bungekho ngaphezulu kwe-60 ℃, kuvunyelwe ukunciphisa umthwalo kunye nokusebenza ixesha elide.

(3) Ukukhutshwa kwexabiso langoku lokumisela ixabiso le-IR

Ukuba i-current idlula ixabiso langoku lokumisela i-IR yokukhululwa, i-breaker circuit iya kulibazisa ukuhamba.Kwakhona imele ubuninzi bangoku ukuba i-breaker circuit inokumelana ngaphandle kokukhubeka.Eli xabiso kufuneka libe likhulu kunowona mthwalo uphezulu we-IB wangoku kodwa ube ngaphantsi kowona mkhulu ngoku iz ovunyelwe ngumgca.
I-thermal disconnect relay IR inokulungelelaniswa kuluhlu lwe-0.7-1.0in, kodwa ukuba izixhobo zombane zisetyenzisiwe, uluhlu lohlengahlengiso lukhulu, ngokuqhelekileyo i-0.4-1.0in.Kwi-breaker circuit ixhotyiswe nge-non adjustable overcurrent trip relay, IR = in.

(4) Ukukhutshwa kwesiphaluka esifutshane ixabiso langoku lokumisela im

I-short-circuit tripping relay (ixesha elikhawulezayo okanye ukulibaziseka okufutshane) isetyenziselwa ukuhamba ngokukhawuleza i-breaker circuit xa i-high fault current isenzeka, kwaye i-threshold yayo yokukhubeka i-im.

(5) Ilinganiswe ixesha elifutshane ukumelana ne-ICW yangoku

Ibhekisa kwixabiso langoku elivunyelwe ukuba lidlule ngexesha elivunyelweneyo.Ixabiso langoku liya kudlula kumqhubi ngaphakathi kwexesha elivunyelweneyo, kwaye umqhubi akayi konakaliswa ngenxa yokushisa.

(6) Ukuqhawula amandla

Umthamo wokuqhawula we-circuit breaker ubhekisela kwikhono le-circuit breaker ukunqumla ngokukhuselekileyo i-current current, engahambelani ngokufanelekileyo nokulinganisa kwayo ngoku.Kukho 36ka, 50kA kunye nezinye iinkcukacha.Ngokuqhelekileyo yahlulahlulwe yaba yi-ICU eyophulwa kwimo yethutyana kwaye isebenza kwii-ICs zokophulwa kwesekethe emfutshane.