Unokukhetha njani i-A, B, C, OKANYE D iziqhekezi zesekethe ezincinci ze-MCB

Kukho iimpawu zohambo ezine zeabaphuli beesekethe ezincinci: A, B, C, kunye noD. Ngoko sikhetha njani?

(1)UHLOBO I-circuit breaker: Amaxesha e-2 angoku alinganisiweyo, awafane asetyenziswe, ngokuqhelekileyo asetyenziselwa ukukhusela i-semiconductor (ngokuqhelekileyo sebenzisa i-fuse);Okubizwa ngokuba yinani lamaxesha angoku, yimpembelelo yangoku, ukumelana nexesha elithile lokutshintsha akuhambi, iimpawu zayo kukuphepha impembelelo yangoku.

Ukukhethwa kwesixhobo sokukhubeka sei-low-voltage circuit breaker: uhlobo lwesixhobo sokukhubekaumephuli wojikelezoinesixhobo sokukhubeka sangoku, isixhobo sokukhubeka esingaphantsi kwe-voltage, isixhobo sokukhubeka se-shunt, njl. njl isixhobo sokukhubeka sesona sixhaphakileyo sisetyenziswa.Isenzo sangoku sokucwangcisa ixabiso lesixhobo sokukhubeka esigqithisekileyo sinokulungiswa okanye silungelelaniswe, ngokuqhelekileyo ngokujikeleza okanye ukulungisa i-lever.Isixhobo sokukhubeka se-Electromagnetic overcurrent ine-fixed efanayo kunye nezimbini ezilungelelanisiweyo.Isixhobo se-electronic overcurrent tripping siyakwazi ukuhlengahlengiswa.

Ukuqhawuka kwamandla aumephuli wojikelezoibhekiselele kumandla okumelana nowona mzuzu uphezulu wesekethe yangoku, ngoko ke amandla okuqhawuka komjikelo wesekethe kufuneka abe mkhulu kunomsinga omfutshane wesixhobo sokukhusela. imodyuli, elungiselelwe ukufakwa kohambo lwefektri kunye ne-circuit breaker icutshungulwa ibe yi-organic yonke, kanye emva kokuba bemkile umlinganiselo wangoku wohambo ulungelelaniswa, kunye nohambo lofakelo lwemodyuli njengemodyuli yesiphaluka efakiweyo, inokulungelelaniswa, ukuguquguquka yomelele.

Uhlobo olukhawulezileyo: 0.02s, ukukhusela isiphaluka esifutshane;

Uhlobo lokulibaziseka olufutshane: i-0.1-0.4s, isetyenziselwa isiphaluka esifutshane, ukhuseleko lomthwalo ogqithisiweyo;

Ukulibaziseka okude: ngaphantsi kwe-10S, esetyenziselwa ukukhusela umthwalo ogqithisileyo;

Ngoku isetyenziswa ngokuqhelekileyoDZ seriesukutshintsha umoya (i-breaker circuit encincingokhuseleko lokuvuza), iinkcukacha eziqhelekileyo zezi: C16, C25, C32, C40, C60, C80, C100, phakathi kwazo C imele ukukhupha uphawu lwangoku nguC, oko kukuthi tsiba lwangoku, umzekelo C20 ivakalisa ukutsiba yangoku yi-20A, uphawu lohambo. yiC curve, faka i-3500W isifudumezi samanzi ukuze ufune ukukhetha i-breaker circuit ye-C20 ngokuqhelekileyo, faka i-6500W isifudumezi samanzi ukuze ufune ukusebenzisa i-breaker circuit ye-C32.

I-Circuit breaker isetyenziselwa ukukhusela ucingo kunye nokukhusela umlilo, ngoko ke ngokobukhulu bocingo ukukhetha kunokuba ngokuhambelana namandla okhetho lombane.Ukuba i-breaker circuit inkulu kakhulu, ayiyi kukhusela ucingo.Xa ucingo lugcwele kakhulu, i-breaker circuit ayisayi kuxhuma, eya kuzisa iingozi ezifihliweyo kukhuseleko lwekhaya.

I-1.5 yocingo lwesikwere kunye ne-C10 switch

2.5 ucingo lwesikwere kunye neC16 okanye i-20 yokutshintsha

4 ucingo lwesikwere kunye neC25 switch

6 ucingo lwesikwere kunye ne-C32 switch

Kubaiiswitshi zomoyaesetyenziselwa iimoto ezinomthwalo, uhlobo lwe-D iimpawu kufuneka zikhethwe ukunqanda ukuqala okuphezulu kwangoku kwemoto eqalayo ngamaxesha angama-5-8 aphezulu.

(2) Uhlobo lwe-B uhlobo lwe-Circle breaker: amaxesha angama-2-3 i-current rated current, esetyenziswa ngokubanzi kumthwalo ococekileyo ochasayo kunye nesekethe yokukhanyisa i-low-voltage, ehlala isetyenziselwa ibhokisi yokuhambisa indlu, ukukhusela izixhobo zasekhaya kunye nokhuseleko lomntu, ukusetyenziswa okuncinci okwangoku.

(3) I-C type breaker breaker: I-5-10 amaxesha ombane olinganisiweyo, kufuneka ube kwi-0.1 imizuzwana, iimpawu ze-circuit breaker zisetyenziswa ngokuqhelekileyo, zihlala zisetyenziselwa ukukhusela imigca yokusabalalisa kunye nemigca yokukhanyisa kunye nokutshintsha okuphezulu.

(4) Uhlobo lwe-D breaker yesekethe: amaxesha angama-10-20 umjelo olinganisiweyo, ngakumbi ekusetyenzisweni kokusingqongileyo okukhoyo kombane ngokukhawuleza okukhulu, usapho oluqhelekileyo alusetyenziswanga kancinci, lulungele imvakalelo ephezulu yomthwalo kunye nempembelelo enkulu yangoku inkqubo, ehlala isetyenziselwa ukukhusela. izixhobo ezinempembelelo yangoku ephezulu.