Sulfur Hexafluoride (SF6) Potoloho ea Sekhahla

Sekhechana sa potoloho moo SF6 tlas'a khatello ea khase e sebelisetsoang ho tima arc e bitsoa SF6 circuit breaker. Khase ea SF6 (sulphur hexafluoride) e na le dielectric tse ntle haholo, arc quenching, lik'hemik'hale le lisebelisoa tse ling tsa 'mele tse bonts'itseng bophahamo ba eona ho feta lisebelisoa tse ling tsa ho tima arc tse kang oli kapa moea. Sekhechana sa potoloho sa SF6 se arotsoe haholo ka mefuta e meraro:

• Non-puffer piston circuit breaker
• Sekhechana sa potoloho ea piston e le 'ngoe.
• Sesebelisoa sa potoloho ea piston ea puffer habeli.

Sekhechana sa potoloho se neng se sebelisa moea le oli e le sesebelisoa se sireletsang matla, matla a bona a ho tima arc a ne a batla a lieha ka mor'a ho tsamaea ha karohano ea likhokahano. Tabeng ea li-circuits tsa motlakase tse phahameng tsa motlakase ho sebelisoa thepa ea ho timela ka potlako ea arc e hlokang nako e fokolang ea ho hlaphoheloa kapele, motlakase oa eketseha. Li-circuits tsa SF6 li na le thepa e ntle mabapi le sena ha li bapisoa le li-circuits tsa oli kapa tsa moea. Kahoo ka matla a phahameng a ho fihla ho 760 kV, ho sebelisoa li-circuit breakers tsa SF6.

Thepa ea Sulfur hexafluoride Circuit Breaker

Sulfur hexafluoride e na le thepa e ntle haholo ea ho sireletsa le ho tima arc. Thepa tsena ke

• Ha e na 'mala, ha e nkhe, ha e chefo ebile ha e chese.
• Khase ea SF6 e tsitsitse haholo ebile ha e na letho, 'me boima ba eona bo feta ba moea ka makhetlo a mahlano.
• E na le conductivity e phahameng ea mocheso ho feta ea moea 'me e thusa likarolong tse tsamaisang tse pholileng tsa hona joale.
• Khase ea SF6 e na le matla a motlakase, ho bolelang hore lielektrone tsa mahala li tlosoa habonolo ho tsoa ka ho thehoa ha li-ion tse mpe.
• E na le thepa e ikhethang ea ho kopanya kapele ka mor'a hore tlhase e matlafatsang e tlosoe. E sebetsa ka makhetlo a 100 ho feta ha e bapisoa le arc quenching medium.
• Matla a eona a dielectric ke makhetlo a 2,5 ho feta a moea le 30% ka tlase ho ea oli ea dielectric. Ka khatello e phahameng matla a dielectric a khase a eketseha.
• Mongobo o kotsi haholo ho SF6 circuit breaker. Ka lebaka la motsoako oa mongobo le khase ea SF6, hydrogen fluoride e thehoa (ha arc e sitisoa) e ka hlasela likarolo tsa li-circuit breakers.

Ho hahoa ha SF6 Circuit Breakers

Li-circuit breakers tsa SF6 haholo-holo li na le likarolo tse peli, e leng (a) yuniti ea li-interrupter le (b) tsamaiso ea khase.

Setsi sa Interrupter - Sehlopha sena se na le likhokahano tse tsamaeang le tse tsitsitseng tse nang le sete ea likarolo tse tsamaisang hona joale le probe ea arcing. E hokahane le pokello ea khase ea SF6. Karolo ena e na le liphaephe tsa lilaete tsa likhokahano tse tsamaeang tse lumellang khase e nang le khatello e phahameng ho kena ka tankeng e kholo.

Sisteme ea Khase - Sisteme ea khase ea potoloho e koetsoeng e sebelisoa ho li-circuit breakers tsa SF6. Khase ea SF6 e theko e boima, kahoo e khutlisetsoa morao ka mor'a ts'ebetso e 'ngoe le e' ngoe. Yuniti ena e na le likamore tse tlase le tse phahameng tse nang le alamo ea khatello e tlase hammoho le li-switches tse lemosang. Ha khatello ea khase e le tlase haholo ka lebaka la hore matla a dielectric a likhase a fokotseha 'me matla a ho tima arc ea li-breaker a kotsing, joale tsamaiso ena e fana ka alamo ea temoso.

Molao-motheo o sebetsang oa SF6 Circuit Breaker

Maemong a tloaelehileng a ts'ebetso, li-contacts tsa breaker li koetsoe. Ha phoso e etsahala tsamaisong, li-contacts li huloa ka thōko, 'me ho otloa arc pakeng tsa bona. Ho falla ha mabitso a tsamaeang ho lumellana le valve e kenang khase e phahameng ea SF6 ka kamoreng e senyang ea arc ka khatello ea hoo e ka bang 16kg / cm ^ 2.

Khase ea SF6 e monya lielektrone tse sa lefelloeng tseleng ea arc ebe e etsa li-ion tse sa sebetseng joalo ka sejari sa tefo. Li-ion tsena li eketsa matla a dielectric a khase mme ka hona arc ea tima. Ts'ebetso ena e fokotsa khatello ea khase ea SF6 ho fihlela ho 3kg / cm ^ 2 kahoo; e bolokoa ka letamong la khatello e tlase. Khase ena e nang le khatello e tlase e huleloa ho khutlela polokelong ea khatello e phahameng hore e sebelisoe hape.

Hona joale khatello ea piston ea letsatsi e sebelisoa bakeng sa ho hlahisa khatello ea ho tima arc nakong ea ts'ebetso ea ho bula ka piston e hokeletsoeng ho likhokahano tse tsamaeang.

Molemo oa SF6 potoloho breaker

Li-circuit breaker tsa SF6 li na le melemo e latelang ho feta sekhechana se tloaelehileng

1. Khase ea SF6 e na le insulate e ntle haholo, e tima arc le lisebelisoa tse ling tse ngata tseo e leng melemo e meholo ea li-circuits tsa SF6.
2. Khase ha e chese ebile e tsitsitse ka lik'hemik'hale. Lihlahisoa tsa tsona tsa ho bola ha li phatlohe ka hona ha ho kotsi ea mollo kapa ho phatloha.
3. Ho tlosoa ha motlakase ho fokotsehile haholo ka lebaka la matla a phahameng a dielectric a SF6.
4. Ts'ebetso ea eona ha e amehe ka lebaka la ho fapana ha maemo a sepakapaka.
5. E fana ka ts'ebetso e se nang lerata, 'me ha ho na bothata ba voltage e fetang hobane arc e tima ka zero ea tlhaho ea hona joale.
6. Ha ho na ho fokotseha ha matla a dielectric hobane ha ho na likaroloana tsa carbon tse entsoeng nakong ea arcing.
7. E hloka tlhokomelo e fokolang 'me ha ho tsamaiso ea moea e hatelitsoeng e theko e boima e hlokahalang.
8. SF6 e etsa mesebetsi e fapaneng joalo ka ho hlakola liphoso tsa mehala e khuts'oane, ho chencha, ho bula lithapo tsa phetisetso tse sa laoloang, le mochini o fetolang motlakase, joalo-joalo ntle le bothata.

Mefokolo ea li-circuit breakers tsa SF6

1. Khase ea SF6 e bipetsa ho isa bohōleng bo itseng. Tabeng ea ho lutla ka tanka ea ho robeha, khase ea SF6 e boima ho feta moea, kahoo SF6 e lula sebakeng se potolohileng 'me e lebisa ho bipetsana ha basebetsi.
2. Ho kena ha mongobo ka tanka ea SF6 ho kotsi haholo ho senya, 'me ho baka liphoso tse' maloa.
3. Likarolo tse ka hare li hloka ho hloekisoa nakong ea tlhokomelo ea nako le nako tlas'a tikoloho e hloekileng le e omileng.
4. Setsi se khethehileng se hloka bakeng sa lipalangoang le tlhokomelo ea boleng ba khase.

(Re qotsa sengoloa sena ho tsoa sebakeng sena sa marang-rang: https://circuitglobe.com/sf6-sulphur-hexaflouride-circuit-breaker.html)