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Li-capacitor tsa Power tse entsoeng ka tloaelo tse sebelisoang lipotolohong tsa DC-link

Tlhaloso e Khutšoanyane:

Letoto la DMJ-PC

Li-capacitor tsa filimi tse entsoeng ka tšepe ke tse ling tsa li-capacitor tse tloaelehileng tse sebelisoang li-circuits tsa kajeno tsa elektroniki ha li-capacitor tsa lifilimi tse tlase li sebelisoa hangata bakeng sa ho kopanya le ho sefa lits'ebetso.

Li-capacitor tsa lifilimi tsa motlakase li sebelisoa haholo ho li-circuits tsa DC-link, li-laser tsa pulsed, mahlaseli a X-ray, le li-phase shifters.

 

 


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Tlhaloso

Litšobotsi tsa ts'ebetso ea li-capacitor tsa lifilimi li fapana haholo ho latela lisebelisoa tsa dielectric tse sebelisoang hammoho le theknoloji ea kaho e sebelisitsoeng.Tse ling tsa li-dielectric tsa filimi ea polasetiki tse sebelisoang hangata li kenyelletsa polyethylene naphthalate (PEN), polyethylene terephthalate (PET), le polypropylene (PP).

Li-capacitor tsa lifilimi tsa polasetiki li ka aroloa ka bophara ho ba lifilimi / foil le li-capacitor tsa filimi tse entsoeng ka tšepe.Sebopeho sa motheo sa filimi / foil capacitor se na le li-electrode tse peli tsa tšepe tsa tšepe le dielectric ea filimi ea polasetiki pakeng tsa tsona.Li-capacitor tsa filimi / foil li fana ka khanyetso e phahameng ea ho ts'oaroa, bokhoni bo phahameng ba ho sebetsana le pulse, bokhoni bo botle ba ho jara hona joale, le botsitso bo botle ba bokhoni.Ho fapana le li-capacitor tsa filimi / foil, li-capacitor tse entsoeng ka tšepe li sebelisa lifilimi tsa polasetiki tse koahetsoeng ka tšepe e le li-electrode.Li-capacitor tsa filimi tse entsoeng ka tšepe li fokolitse boholo ba 'mele,' me li fana ka katleho e phahameng ea molumo, botsitso bo botle ba bokhoni, tahlehelo e tlaase ea dielectric, le thepa e babatsehang ea ho ipholisa.Li-capacitor tse ling ke lebasetere la li-capacitor tsa filimi / foil le li-capacitor tse entsoeng ka metallized le litšobotsi tsa mefuta ka bobeli.Thepa ea ho ipholisa ea li-capacitor tse entsoeng ka metallized filimi li etsa hore e be tse loketseng bakeng sa lits'ebetso tse fapaneng, ho kenyelletsa le bophelo bo bolelele le li-circuits tsa mekhoa e metle.

Boipheliso ba li-capacitor tsa filimi tse entsoeng ka tšepe

Li-dielectrics tsa filimi tsa polasetiki tse atisang ho sebelisoa ha ho etsoa li-capacitor tse entsoeng ka tšepe li kenyelletsa polypropylene (PP), polyphenylene sulfide (PPS), polyester, le pampiri ea metalized (MP).Lisebelisoa tsena tsa dielectric li na le bokhoni bo fapaneng ba ho iphekola.

Ha ho senyeha ho etsahala ka metallized filimi capacitor, arcing e etsa hore lera le tšesaane la tšepe le pota-potileng sebaka sa phoso le fetohe mouoane.Ts'ebetso ena ea vaporization e tlosa lera la tšepe la conductive sebakeng se potolohileng sekoli.Kaha thepa ea conductive e tlosoa, potoloho e khutšoanyane e ke ke ea etsahala pakeng tsa lipoleiti.Sena se thibela ho hloleha ha karolo.

Bokhoni ba ho ipholisa ba metallized filimi capacitor bo itšetlehile ka lintlha tse ngata tse kenyeletsang thepa ea thepa ea dielectric le botenya ba lera la tšepe.Ts'ebetso ea mouoane e hloka phepelo e lekaneng ea oksijene le lisebelisoa tsa dielectric tse nang le oksijene e holimo holimo li na le thepa e ntle ea ho ipholisa.Tse ling tsa li-dielectric tsa filimi ea polasetiki tse nang le litšobotsi tse ntle tsa ho ipholisa li kenyelletsa polypropylene, polyester le polycarbonate.Ka lehlakoreng le leng, li-dielectric tsa filimi ea polasetiki tse nang le oksijene e tlase ea bokaholimo li na le litšobotsi tse mpe tsa ho ipholisa.Polyphenylene sulfide (PPS) ke e 'ngoe ea lisebelisoa tse joalo tsa dielectric.

Ntle le ho matlafatsa ts'epo, bokhoni ba ho ipholisa ba li-capacitor tse entsoeng ka tšepe li thusa ho ntlafatsa bophelo ba bona ba ts'ebetso.Leha ho le joalo, ho iphekola ho baka ho fokotseha ha sebaka sa electrode ea metallized ka nako.

Lits'ebetsong, a mang a maemo a ka potlakisang ho hloleha ha karolo a kenyelletsa mocheso o phahameng, maqhubu a phahameng, lehalima, mongobo o phahameng, le tšitiso ea motlakase (EMI).

Ntle le thepa e ntle ea ho ipholisa, li-capacitor tsa filimi ea metallized polyester le tsona li na le dielectric tse phahameng kamehla, botsitso bo botle ba mocheso, matla a phahameng a dielectric, le katleho e ntle ea volumetric.Litšobotsi tsena li etsa hore li-capacitor tsena e be tse loketseng bakeng sa ts'ebeliso ea sepheo se akaretsang.Li-capacitor tsa polyester tse entsoeng ka tšepe li sebelisoa haholo bakeng sa lits'ebetso tsa DC joalo ka ho thibela, ho feta, ho theola le ho hatella lerata.

Metallized polypropylene capacitor e fana ka khanyetso e phahameng ea insulation, ho monya ha dielectric tse tlase, tahlehelo e tlase ea dielectric, matla a phahameng a dielectric, le botsitso ba nako e telele.Likarolo tsena tse sebetsang hantle sebakeng li sebelisoa haholo lits'ebetsong tse khomaretsoeng tse kholo joalo ka li-circuits tsa filter, li-ballast tsa mabone le li-circuits tsa snubber.Li-capacitor tse nang le metallized polypropylene film capacitor li ka mamella meroalo e phahameng ea motlakase le meroalo e phahameng ea pulse, 'me li loketse lits'ebetso tse nang le monyetla o moholo oa ho ba le maqhubu a phahameng.Li-capacitor tsena li sebelisoa hangata ho li-motor controller, li-snubbers, lisebelisoa tsa motlakase tsa switch mode le li-monitor.

Qetello

Ho tšepahala le bophelo bo sebetsang ba li-capacitor bo itšetlehile haholo ka litšobotsi tsa bona tsa ho ipholisa.Likarolo tsa Passive tse nang le litšobotsi tse ntle tsa ho ipholisa li tšepahala haholoanyane 'me li fana ka bophelo bo bolelele ba ts'ebetso.Litšobotsi tse ntle tsa ho ipholisa tsa li-capacitor tsa filimi tse entsoeng ka tšepe li matlafatsa matla a tsona 'me li etsa hore li tšoanelehe bakeng sa likopo tse ngata.Ntle le moo, likarolo tsena tse matla li hloleha ho potoloha potoloho e bulehileng, 'me sena se etsa hore e be tse loketseng lits'ebetso tse batlang likarolo tse nang le mokhoa o sireletsehileng oa ho hloleha.

Ka lehlakoreng le leng, thepa ea ho ipholisa ea li-capacitor tse entsoeng ka metallized e etsa hore tahlehelo ea tahlehelo e eketsehe 'me matla a kakaretso a theohe.Ntle le thepa e ntle ea ho ipholisa, boholo ba li-capacitor tsa filimi tse entsoeng ka tšepe li boetse li fana ka matla a ho senya le ho sebetsa hantle haholo.

Bakeng sa lintlha tse ling tsa capacitor ea lifilimi, ka kopo khoasolla lethathamo la CRE.

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