Kedu ihe bụ Nhazi Mbufe?
Ọdịdị nnyefe bụ otu n'ime ihe ndị a na-ahụ anya nke usoro nnyefe ọkụ eletrik. Ha na-akwado ndị nduzieji ebufe ọkụ eletrik site na isi mmalite ọgbọ gaa na ibu ndị ahịa. Ahịrị nnyefe na-ebu ọkụ eletrik ogologo ogeanya na elu voltaji, ọ na-adịkarị n'etiti 10kV na 500kV.
Enwere ọtụtụ atụmatụ dị iche iche maka usoro nnyefe. Ụdị abụọ a na-ahụkarị bụ:
Ụlọ elu Lattice Steel (LST), nke nwere usoro nchara nke ihe nhazi nke onye ọ bụla na-agbachi ma ọ bụwelded ọnụ
Ogwe osisi Tubular Steel (TSP), nke bụ okporo osisi ndị nwere oghere nke a kpụrụ dị ka otu ibe ma ọ bụ dị ka ọtụtụ iberibe dabara adabaọnụ.
Ọmụmaatụ nke 500-kV otu okirikiri LST
Ọmụmaatụ nke 220-kV okpukpu abụọ-circuit LST
Enwere ike ịhazi ma LST na TSP ka ha buru otu sekit eletriki ma ọ bụ abụọ, nke a na-akpọ otu okirikiri na okirikiri okirikiri (lee ihe atụ dị n'elu). Ihe owuwu okirikiri abụọ na-ejidekarị ndị na-eduzi ya na nhazi kwụ ọtọ ma ọ bụ kpọkọtara ọnụ, ebe ihe otu okirikiri na-ejidekarị ndị na-eduzi n'usoro. N'ihi nhazi kwụ ọtọ nke ndị na-eduzi, ihe owuwu nke abụọ dị ogologo karịa otu okirikiri. Na ala voltaji ahịrị, Ọdịdị mgbe ụfọdụburu sekit karịrị abụọ.
Otu okirikiriahịrị nnyefe nke ọzọ (AC) nwere akụkụ atọ. Na obere voltaji, usoro na-enwekarị otu onye nduzi. Na elu voltaji (karịa 200 kV), a na-adọ nwere ike iso nke otutu conductors (bundled) kewapụrụ site mkpụmkpụ spacers.
A okpukpu abụọAhịrị nnyefe AC nwere usoro abụọ nke usoro atọ.
A na-eji ụlọ elu ndị nwụrụ anwụ eme ihe ebe eriri nnyefe kwụsịrị; ebe eriri nnyefe na-atụgharị na nnukwu akụkụ; n'akụkụ nke ọ bụla nke nnukwu ngafe dị ka nnukwu osimiri, okporo ụzọ, ma ọ bụ nnukwu ndagwurugwu; ma ọ bụ na etiti oge n'akụkụ akụkụ kwụ ọtọ iji nye nkwado ọzọ. Ụlọ elu nwụrụ anwụ dị iche na ụlọ elu nkwusioru n'ihi na a na-ewu ya ka ọ dị ike, na-enwekarị isi ala, ma nwee eriri mkpuchi siri ike.
Ogo nhazi dị iche iche dabere na voltaji, topography, ogologo ogologo na ụdị ụlọ elu. Dịka ọmụmaatụ, LST 500-kV nwere okpukpu abụọ na-adịkarị site na 150 ruo ihe karịrị 200 ụkwụ n'ogologo, na ụlọ elu 500-kV nke otu okirikiri na-adịkarị site na 80 ruo 200 ụkwụ ogologo.
Ihe owuwu mgbagharị ugboro abụọ toro ogologo karịa ihe otu okirikiri n'ihi na a na-ahazi usoro ndị ahụ na kwụ ọtọ na nke kachasị ala ga-enwerịrị obere mkpochapụ ala, ebe a na-ahazi usoro ndị ahụ kwụ n'ahịrị n'otu akụkụ okirikiri. Ka voltaji na-abawanye, a ga-ekewarịrị usoro ndị ahụ site n'ebe dị anya karịa iji gbochie ohere ọ bụla nke ndabichi ma ọ bụ ịgba ọkụ. Ya mere, elu voltaji ụlọ elu na okporo osisi ndị toro ogologo na nwere wider kehoraizin cross ogwe aka karịa ala voltaji Ọdịdị.
Oge nzipu: Feb-25-2022
