Mekhoa e Mehlano ea Tšireletso ea Basireletsi ba Ts'oaetso
Mekhoa ea Tšireletso ea ho Buuoa ke Mafu
1. Lisebelisoa tsa Tšireletso tsa Parallel Surge (SPDs) tse Hokahaneng ho pholletsa le Mehala ea Motlakase
Tlas'a maemo a tloaelehileng, li-varistor tse ka hare ho sesireletsi sa maqhubu li lula li le boemong ba ho thibela motlakase haholo. Ha gridi ea motlakase e otloa ke lehalima kapa e utloa ho phahama ha nakoana ka lebaka la ts'ebetso ea ho fetola motlakase, sesireletsi se arabela ka har'a metsotsoana e seng mekae, e leng se etsang hore li-varistor li fetohele boemong ba ho thibela motlakase ho tlase, li tlama motlakase o feteletseng ka potlako boemong bo sireletsehileng. Haeba ho hlaha ho phahama kapa ho phahama ha motlakase nako e telele, varistor e ea senyeha 'me ea chesa, e leng se bakang mokhoa oa ho tima mocheso ho thibela mollo le ho sireletsa lisebelisoa.
2. Litšireletso tsa ho phahama ha mofuta oa sefa tse hokahaneng moleng le lipotoloho tsa motlakase
Litšireletso tsena li fana ka matla a hloekileng le a sireletsehileng bakeng sa lisebelisoa tsa elektroniki tse bonolo. Maqhubu a lehalima ha a na matla a maholo feela empa hape a na le matla a phahameng haholo a motlakase le sekhahla sa ho phahama ha motlakase. Le hoja li-SPD tse tsamaeang ka tsela e tšoanang li ka thibela maqhubu a tsona a bohale, li ke ke tsa batalatsa maqhubu a tsona a bohale. Li-SPD tsa mofuta oa sefa, tse hokahaneng moleng le lipotoloho tsa motlakase, li sebelisa li-MOV (MOV1, MOV2) ho thibela li-overvoltage ka metsotsoana e seng mekae. Ho feta moo, sefe ea LC e fokotsa ho phahama ha motlakase oa maqhubu le sekhahla sa ho phahama ha motlakase ka makhetlo a ka bang 1,000 mme e fokotsa motlakase o setseng ka makhetlo a mahlano, e leng se sireletsang lisebelisoa tse bonolo.
3. Ho kenya Di-Varistor tsa ho Kgutlisa Motlakase Pakeng tsa Mekgahlelo le Methapo ho Lekanya ho Feta ha Motlakase
Mokhoa ona o sebetsa hantle bakeng sa mabone, lifti, li-air conditioner le lienjene, tse nang le bokhoni bo phahameng ba ho mamella ho phahama. Leha ho le joalo, ha o sebetse hantle bakeng sa lisebelisoa tsa elektroniki tsa sejoale-joale tse kopaneng tse nang le kopanyo e phahameng. Mohlala, lits'ebetsong tsa AC tsa mohato o le mong tsa 220V, hangata li-varistor li kenngoa lipakeng tsa leeme le mobu ho monya li-spikes tse bakoang ke lehalima. Katleho ea tšireletso e itšetlehile ka ho feletseng ka khetho ea varistor le botšepehi.
Motlakase oa ho khomarela o behiloe ho latela motlakase o phahameng oa gridi (310V), o ikarabellang bakeng sa:
- 20% ho feto-fetoha ha gridi,
- Mamello ea likarolo tsa 10%,
- Mabaka a ts'epahalo a 15% (botsofali, mongobo, mocheso).
Ka hona, maemo a tloaelehileng a ho khomarela a tloha ho 470V ho isa ho 510V. Maqhubu a ka tlase ho 470V a feta ntle le ho angwa.
Leha disebediswa tse tlwaelehileng tsa motlakase (mohlala, dienjene, mabone) di ka mamella 1,500V AC (tlhōrō ya 2,500V), dielektronike tsa sejwalejwale di sebetsa ho ±5V ho isa ho ±15V, ka mamello e phahameng ka tlase ho 50V. Di-spikes tse phahameng tse ka tlase ho 470V di ntse di ka kopana le di-parasite capacitances ho di-transformer le phepelo ya motlakase, di senya di-IC. Ho feta moo, ka lebaka la motlakase o setseng wa varistor le inductance ya lead, maqhubu a matla a ka sutumelletsa maemo a ho thiba ho 800V–1,000V, e leng se behang dielektronike kotsing le ho feta.
4. Ho Ntlafatsa Tšireletso ka Li-Transformer tsa Ultra-Isolation (Mokhoa oa ho Isolation)
Transformer e sirelelitsoeng e kenngoa pakeng tsa mohloli oa motlakase le mojaro ho thibela lerata la maqhubu a phahameng ha ka nako e ts'oanang e nolofalletsa ho thella ha motheo ho nepahetseng. Tšitiso ea mokhoa o tloaelehileng, e amanang le mobu, e hokahana ka bokhoni ba ho kopanya li-winding. Thebe e sirelelitsoeng pakeng tsa li-winding tsa mantlha le tsa bobeli e faposa tšitiso ena, e fokotsa lerata la tlhahiso.
5. Mokhoa oa ho monya
Dikarolo tse monyang di thibela ho phahama ha metsi ka ho fetola ho tloha ho impedance e phahameng ho ya ho e tlase ha di-voltage tsa moedi di feta. Disebediswa tse tlwaelehileng di kenyeletsa:
- Li-varistor – Bokgoni bo fokolang ba ho sebetsana le motlakase.
- Liphaephe tsa ho ntša khase (GDTs)– Karabelo e liehang.
- Li-diode tsa TVS / Liphaephe tsa ho ntsha metsi tsa boemo bo tiileng – E potlakile empa e na le diphetoho tse itseng mabapi le ho monya matla.
