Ntụnyere arụmọrụ nke ngwa SF6 na ihe na-agbaji sekit

Ntụnyere arụmọrụ nke Ngwa Nchikota SF6 na Ihe Mgbake Circuit

Ịkwụsị arụmọrụ transformer na-enweghị ibu

Ọtụtụ n'ime ihe ndị dị na isi ihe dị na sistemụ nkesa ike bụ nkewa na mmechi nke transformer nkesa. Ike izugbe bụ 315-1250 kVA, ọkụ eletrik enweghị ibu nke transformer nkesa bụ ihe dị ka 2% nke ọkụ eletrik a tụrụ aro. Mgbe ị na-agbaji transformer enweghị ibu, ọ bụrụ na ihe mgbawa sekit nwere ikike imenyụ arc siri ike, na usoro imenyụ arc bụ ụdị ike mpụga, ihe omume nke mmanye arc imenyụ ugbu a tupu efu ga-eme, nke na-ebute oke voltaji. Ọ bụrụ na ejiri ihe mgbawa sekit, n'ihi ikike imenyụ arc ya, emebere ya ka ọ gbajie nnukwu ọkụ eletrik dị mkpụmkpụ. Mgbe ị na-agbaji obere ọkụ eletrik nke transformer enweghị ibu, a na-eme ka arc emenyụ ike, nke na-ebute oke voltaji. N'akụkụ a, ọ dịghị mma iji ihe mgbawa sekit nwere ikike imenyụ arc siri ike. Na ihe mgba ọkụ SF6, n'ihi njirimara eletriki nke gas SF6, mgbe arc jụrụ oyi na gas SF6, ọ ka na-eduzi ọkụ eletrik ruo mgbe okpomọkụ dị ala, ebe njedebe ugbu a tupu efu agafeela obere, si otú a na-ezere oke voltaji dị elu. Ya mere, arụmọrụ nke iji ihe mgba ọkụ SF6 iji mebie transformer enweghị ibu dị mma karịa nke ihe mgba ọkụ SF6, ihe mgba ọkụ SF6 dịkwa mma karịa ihe mgba ọkụ SF6.

Chebe arụmọrụ nke transformers nkesa

Maka nchekwa nke transformers nkesa, ojiji nke SF6 load switch + fuse combination dị irè karịa circuit breakers, mgbe ụfọdụ nke ikpeazụ enweghị ike ịrụ ọrụ nchebe dị irè. Nnwale sekit dị mkpụmkpụ na-egosi na mgbe transformer nke mmanụ mikpuru na-agbawa mkpụmkpụ, iji gbochie tankị mmanụ ịgbawa, a ga-ewepụ nsogbu ahụ n'ime milisekọnd 20. Ịmachi uru ugbu a dị mkpụmkpụ nwere ike ichebe transformer nke ọma. Oge mmebi zuru oke nke circuit breaker nwere akụkụ atọ, oge ihe omume nchekwa relay + oge ihe omume nke circuit breaker + oge arcing, nke na-achọkarị okirikiri atọ (milsekọnd 60), yabụ na ọ nweghị ike ichebe transformer nke ọma. Ọbụna transformers ụdị akọrọ ka mma karịa iji circuit breakers n'ihi ọrụ nchebe ngwa ngwa nke fuses.

Arụmọrụ nhazi nchedo relay

A na-ahazi nchekwa nke ihe mgbawa sekit n'isi isi nke netwọk nkesa netwọk mgbanaka (ihe mgbawa sekit 10kV nke substation) ka ọ bụrụ sekọnd 0 maka nkwụsịtụ ngwa ngwa, sekọnd 0.5 maka oke ọkụ, na sekọnd 0.5 maka usoro efu. Ọ bụrụ na ejiri ihe mgbawa sekit na ngalaba mgbanaka bụ isi, ọbụlagodi na edobere ya na sekọnd 0.5, ọ na-esiri ike ijide n'aka na ihe mgbawa sekit nke mbụ anaghị arụ ọrụ mbụ n'ihi mgbasa nke oge ọrụ nke ihe mgbawa sekit. Mbelata voltaji nke sekit dị mkpụmkpụ kpatara anaghị emetụta fuse na-egbochi ugbu a, ọ nwekwara ike iwepụ nsogbu ahụ n'oge dị mkpirikpi na-enweghị ibute njem leapfrog.