Ọtụtụ narị amperes ruo ihe karịrị 1000 amperes nke oke ibu, otu esi ahọrọ ihe mgbaka sekit

Ihe mgbaji sekit akpa akpụziriA na-atụle site na 10A ruo 1600A, naNdị na-ahụ maka sekit (ACB)A na-atụle ya site na 630A ruo 6300A.Hụ ihe mgbaji sekit a kpụrụ akpụ naikuku sekit ikukuakara mpaghara ndakọrịta ugbu a, mgbe ụfọdụ amaghị ka esi ahọrọ.

Enwere ụkpụrụ ole na ole ebe a.

Usoro nkesa isi na usoro nkesa, nke nwere ma loop nri na moto loop.

Ihe nchebe nke eriri sekit ihe ntanetị bụ eriri.N'otu oge ahụ, nri nriihe nkesa sekitga-aghọta mmekọrịta nchikota nchedo na isi na-abataihe nkesa sekitnke usoro nkesa nke abụọ, ya mere nriihe nkesa sekitga-enwe obere sekit igbu oge S nchedo.

Thermomagneticihe mgbaji sekit kpụrụ akpụnwere naanị akụkụ abụọ nke nchebe, ya bụ, ibufe ogologo oge L paramita na mkpirisi ozugbo m paramita, adịghị adabara akaghị nke ogologo ndepụta cable, na ijieletrọnịkị kpụrụ sekit sekitna akụkụ atọ nke nchebe.

Maka sekit moto, jiri otu ihe mgbaji magnetik, ya bụ, naanị nchebe sekit dị mkpụmkpụ, enweghị ihe mgbaji nchekwa ihe karịrị oke.A na-ahụ anya, nke a dịkwa iche na nke a na-ahụkarịplastic case circuit breaker.

Ke adianade do, ọ bụrụ na e nwere ihe iche iche transformer na ntinye nke isi nkesa, n'ihi na transformer inrush ugbu a bụ mkpokọta hà na mkpụmkpụ-circuit ugbu a, ndị gosiri ugbu a nke sekit emebi nwere ike họrọ dị ka 1.6 ugboro nke gosiri ugbu a. transformer mgbe ị na-agbakọ.Ọ bụrụ na iche iche transformer nwere nnukwu ikike.ikuku sekit breakersenwere ike iji.

Ka ihe atụ, 250kVA 0.4kV ka 0.4kV iche iche transformer, impedance voltaji bụ 6%, ya gosiri ugbu a bụ:

Ugbu a obere okirikiri bụ:

Anyị na-ekesa mkpirisi mkpirisi ugbu a site na 10 iji nweta 600A, yabụ anyị na-eji ihe mgbawa sekit nwere ogo 630A dị ugbu a dị ka ọ na-adị.

Otú ọ dị, anyị na-atụle mmetụta oge ogologo nke excitation inrush ugbu a, anyị chọrọ iji obere sekit igbu oge S paramita na-egbu oge, mgbe ahụ 630A kpụrụ ikpe sekit adịghị mma, na-eji 800A etiti sekit breaker, etiti sekit emebi obere sekit oge igbu oge. ogologo.

Tụkwasị na nke ahụ, mgbe ị na-atụle eriri nke mpụga, ọ dị mkpa iji lelee nkwụsi ike nke okpomọkụ nke eriri, nke ga-eme ka ọnụ ọgụgụ dị ugbu a dị ugbu a nke eriri sekit.

Na-ahụ anya, anyị ga-atụle ụdị ihe nkedo sekit ịhọrọ.