Kabinet na-eguzogide ala

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Site na mmepe ngwa ngwa nke grids ike obodo na ime obodo, nnukwu mgbanwe ewerela na nhazi ọkụ eletrik, na netwọk nkesa nke eriri na-achịkwa apụtala.Igwe ikike nke ala abawanyela nke ukwuu.Mgbe otu mmejọ ala na-eme n'ime sistemụ, enwere mpe mpe mpe mpe mpe mpe mpe akwa enwere ike nwetaghachi.The ojiji nke iguzogide grounding usoro bụghị naanị adapts ka isi mmepe na mgbanwe chọrọ nke mba m ike okporo, ma na-ebelata ikpuchi larịị nke ike nnyefe ngwá site otu ma ọ bụ abụọ akara ule, ibelata ego nke mkpokọta ike okporo.Wepụ mmejọ ahụ, kwụsị oke resonance, ma melite nchekwa na ntụkwasị obi nke sistemu ike.

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Ka ọ dị ugbu a, a na-edepụta usoro nkwụsịtụ nnọpụiche site na nguzogide n'ime ụkpụrụ ụlọ ọrụ ike.Ụkpụrụ ụlọ ọrụ ike DL / T620-1997 "Nchekwa overvoltage na mkpuchi mkpuchi nke AC Electric Installations" na-akọwa na Nkeji edemede 3.1.4: "5 ~ 35KV bụ nke mejupụtara maka usoro nnyefe ike na nkesa nke nwere eriri eriri, mgbe otu. -phase ala mmejọ nwere nnukwu capacitive ugbu a, na ala-eguzogide grounding usoro nwere ike iji, ma a pụrụ ịdabere chọrọ nke ike ọkọnọ, mmetụta nke transient voltaji na transient ugbu a na eletriki akụrụngwa n'oge mmejọ, na mmetụta na nkwurịta okwu Relay nchedo teknụzụ chọrọ. na ahụmịhe ọrụ mpaghara, wdg. "Nkeji edemede 3.1.5 na-ekwu: “5KV na 10KV sistemụ ike nkesa na ike osisi ike sistem, mgbe otu-phase ala mmejọ capacitor ugbu a bụ obere, iji gbochie imerụ akụrụngwa dị ka resonance, ọdịiche, I arc grounding overvoltage, wdg ., nwere ike gbadaa na nnukwu nguzogide.”

Maka imewe na nhọrọ nke kabinet ndị na-eguzogide, biko rụtụ aka na: DL/780-2001 Distribution System Neutral Grounding Resistor Grounding Method bụ usoro nke na-agụnye ọkwa mkpuchi nke ahịrị na akụrụngwa, nnyonye anya nzikọrịta ozi, nchebe ọsọ ọsọ na nchekwa netwọk ọkụ. N'ihi nsogbu zuru oke nke ntụkwasị obi na ihe ndị ọzọ, usoro ọkụ ọkụ nke netwọk nkesa nke mba m na nnukwu ụlọ ọrụ mmepụta ihe na nke Ngwuputa dị iche iche.N'oge gara aga, ihe ka ọtụtụ n'ime ha na-eji ụdị ọrụ nke ebe na-anọpụ iche na-enweghị ala yana mgbakwasị site na eriri mkpuchi arc.Na-adịbeghị anya, n'ihi na mmepe nke ike usoro na-abawanye na ike oriri nke ọrụ, ụfọdụ n'ógbè na obodo ike grids na vigorously akwalite ọrụ mode nke iguzogide grounding.