800kV dead tank SF6 circuit breaker

1. Zaka ake riga kisan tashin kasa da yake dace da sauran tasiri mai kyau na kashi da kuma sauran tasiri mai kyau na kashi (40.5/72.5/126/170/245/363/420/550/800/1100kV) ya kawo da kisan tashin kasa mai kyau na kashi. Misali, don ƙasar kashi na 35kV, ana zama ake riga kisan tashin kasa na 40.5kV. Kamar addinin GB/T 1984/IEC 62271-100, an tabbatar da cewa tasirin da aka ce ≥ yana dace da tasirin da ake yi a kan ƙasar kashi.
2. Ingantaccen yanayi da ake amfani da su ne daga tasiri mai ba daidai
Tasiri mai ba daidai (52/123/230/240/300/320/360/380kV) ana amfani da ita don ƙasashe kashi mai ban sha'awa, kamar inganta ƙasar kashi masu shekarar daɗi da ma'aikatun kashi na 'yan asabilin gwamnati. Saboda rashin cewa bai fi son ina da tasiri mai daidai, mafi girman abincin suna buƙata daidai saboda parametolin ƙasar kashi, kuma bayan buƙata, ya kamata a duba hanyoyin gaba da dole da kuma hanyoyin kada shiga.
3. Abubuwa da za su faru idan an riga kisan tashin kasa mai ba daidai
Idan an riga kisan tashin kasa mai tsara, zai iya haifar da gaba da dole, wanda yake da shirya da kafukan SF da kuma kafukan alalumin. Idan an riga kisan tashin kasa mai yawa, zai iya haifar da adadin da kaɗa, kuma yana da karfi sosai, kuma zai iya haifar da matsaloli na ba daidai.

1. Dukkan farko da ke tsari a tashar circuit breakers na porcelain column da tank—biyu na tsohon ƙasashe na high-voltage circuit breakers—sun fi yin zuwa shida abubuwa mafi muhimmanci.
2. A cikin tsari, kowace masu porcelain column suke ake taimaka da pillars na porcelain insulation, tare da components da suka fitowa da arc extinguishing chambers da operating mechanisms. Tank types sun amfani da metal-sealed tanks don bincike da highly integrate duka abubuwan da suka fiye.
3. Don insulation, kowace masu porcelain column suke amincewa da pillars na porcelain, air, ko composite insulating materials; kuma tank types sun amfani da gas-gasai na SF₆ (ko wasu insulating gases) tare da metal tanks.
4. Arc extinguishing chambers suna fitowa a tsohu ko pillars na porcelain columns don kowace, amma ana gina a cikin metal tanks don tank types.
5. A cikin application, kowace masu porcelain column suke zama dabam a matsayin outdoor high-voltage distribution tare da layout da ya fiye; tank types sun iya adana a matsayin indoor/outdoor scenarios, musamman a cikin environments da suke da space-constrained.
6. Maintenance-wise, exposed components na kowace suke amincewa don targeted repairs; sealed structure na tank types sun haɗa da overall maintenance frequency amma sun bukatar full inspections don local faults.
7. Technically, kowace masu porcelain column suke bayar da intuitive structure da strong anti-pollution flashover performance, amma tank types sun neman excellent sealing, high SF₆ insulation strength, da superior resistance to external interference.

Har zuwa da ɗauki na gasar SF₆ yana da kyau a cikin ɗauki mai tsarki, kuma tana iya zama 1% kowace shekara. Gasar SF₆ yana da muhimmanci sosai wajen gida ƙasar, mafi yawan tasiri 23,900 kafin da za su mutuwa da gasar CO₂. Idan an haɗa shi, zai iya ba da ƙananan gwamnati kuma zai iya haifar da ci gaban gasar a cikin ƙungiyar da ake ƙare waɗannan ƙaramin jirgin ruwa, wanda ke taimakawa da darajar da ingantaccen ƙaramin jirgin ruwa.

Don in tattaunawa da haɗin ɗaukin gasar SF₆, ana samun abubuwa masu tattaunawa don ɗaukan gasar a kan ƙaramin jirgin ruwa na tank. Waɗannan abubuwa sun taimaka wajen tabbatar da ɗauka kafin ya faru don haka za a yi amfani da hanyoyin da za su taimakawa wajen ƙoƙarin ƙwarewa.

An na biyu cikin yadda ake kawo abu, ita ce mafi so, amma an na daya ne da ke da shirin a kan lokutan da ake fitar da tsari ≤760kV da kuma adadin karamin tashin kudaden yawan. Abubuwan da suka buƙata don samun yawan da take daɗe: ① Yawan da ake sani da shi a kan wasan yawan da take daɗe ya zama 10%-15% daga wani 800kV (misali, 2000pF don sadarwa 756kV da 1800pF don sadarwa 800kV); ② A yi amfani da ɗaya daɗi uku mai sauƙi don samun yawan da take daɗe, tare da gurbin daɗi uku ta zama 5%-8% daga wani 800kV; ③ Kafin kawo abu ta zama 8%-10% a fili (misali, 8%-10% a fili don 756kV a matsayin 800kV) don samun hanyoyin yawan da take daɗe da kuma asalin ciki.