Ke lisebelisoa life tse sebelisoang ka boto ea lesela la epoxy glass fiber?

Ho tšepahala le bophelo ba ts’ebeletso ea ts’ebetso ea matsoelintsoeke ho itšetlehile haholo ka ts’ebetso ea thepa ea insulating. Litlhoko tsa motheo bakeng sa ts’ebetso ea lisebelisoa tsa ho sireletsa li kenyelletsa ts’ebetso ea motlakase, ho hanyetsa mocheso le thepa ea mechine. Sengoliloeng sena Mofumahali o bua ka kenyelletso e khuts’oane ea ts’ebetso ea motlakase ea lisebelisoa tsa insulating. Thepa ea motlakase ea thepa e sireletsang e kenyelletsa matla a ho senya, ho thibela ho thibela ho kenya letsoho, tumello le tahlehelo ea dielectric. Arola motlakase oa ho senya ka botenya ba thepa e sireletsang sebakeng sa ho senya, e hlalositsoeng ka kilovolts/mm. Karohano ea thepa e sireletsang mocheso e ka aroloa ka mefuta e meraro: ho senyeha ha motlakase, ho senyeha ha mocheso le ho senyeha ha metsi. Litlhoko tsa ts’ebetso ea motlakase tsa motlakase bakeng sa thepa e sireletsang ke tsona tsa bohlokoa ka ho fetisisa bakeng sa ho senyeha ha matla a tšimo ea motlakase le ho hanyetsa ho kenya letsoho.

Ho latela mofuta oa koloi, litlhoko tse ling tsa ts’ebetso ea motlakase ha li tšoane hantle. Ka mohlala, ho kenngoa ha li-motor tse nang le matla a phahameng ho hloka tahlehelo e tlaase ea dielectric ea thepa e sireletsang le ho hanyetsa corona hantle; ‘me kabo ea tšimo ea motlakase pakeng tsa mokokotlo oa tšepe le conductor e tlameha ho nkoa. Matla a sebaka sa motlakase a eketseha. Tantent ea tahlehelo e boetse e eketseha. Ha motlakase o eketseha ho ea boleng bo itseng, li-bubble tse ka hare ho bohareng kapa moeling oa electrode li tla lokolloa ka mokhoa o itseng, ‘me tahlehelo ea tahlehelo e eketseha haholo. Boleng bona ba motlakase bo bitsoa motlakase oa pele oa mahala. Boenjiniere, tekanyo ea pele ea motlakase ea mahala e atisa ho sebelisoa ho lekola lekhalo la moea ka har’a sebopeho sa insulation ho laola boleng ba insulation. Ntle le moo, lisebelisoa tse ling tsa insulating li lokela ho nahana ka thepa ea motlakase joalo ka corona resistance, arc resistance, le ho hana mesaletsa ea ho lutla.

Tahlehelo ea dielectric ea thepa e sireletsang. Thepa e sireletsang e hlahisa tahlehelo ea matla ka lebaka la ho lutla ha motlakase le polarization tlas’a ketso ea tšimo ea motlakase. Ka kakaretso, matla a tahlehelo kapa tahlehelo ea tangent e sebelisetsoa ho hlalosa boholo ba tahlehelo ea dielectric. Tlas’a ketso ea motlakase oa DC, hona joale ho tjhaja hang-hang, hona joale ho monya le ho lutla hona joale ho tla feta. Ha motlakase oa AC o sebelisoa, motlakase oa ho tjhaja hang-hang ke motlakase o sebetsang (capacitive current); hona joale ho lutla ho mokhahlelo le motlakase ‘me ke motlakase o sebetsang; hona joale ho monya ho na le motsoako oa hona joale o sebetsang le karolo ea hona joale e sebetsang. Lintlha tse ka sehloohong tse amang tahlehelo ea dielectric ea thepa ea insulating. Kaha ho na le tahlehelo e fapaneng ea dielectric ka maqhubu a fapaneng, ho tlameha ho khethoa maqhubu a itseng ha ho metha boleng ba tangent ea tahlehelo. Ka kakaretso, lisebelisoa tse sebelisoang enjene hangata li lekantsoe bakeng sa tahlehelo ea dielectric frequency frequency ea matla.

Tlas’a ts’ebetso ea motlakase, thepa ea insulating e tla lula e e-na le hona joale e nyenyane ea ho lutla ka eona. Karolo ea hona joale e phalla ka hare ho thepa; karolo ya yona e phallang ka bokahodimo ba thepa. Ka hona, resistivity ea insulation e ka aroloa ka resistivity ea molumo le ho hanyetsa holimo. Molumo oa resistivity o khetholla motlakase o ka hare oa motlakase oa thepa, ‘me sesebelisoa ke ohm·meter; Resistivity holim’a sefahleho e tšoaea conductivity ea motlakase holim’a thepa, ‘me yuniti ke ohm. Molumo resistivity oa thepa insulating hangata ka mefuta e fapaneng ya 107 ho 1019 m · m. The resistivity of insulating materials ka kakaretso e amana le lintlha tse latelang. Boholo ba litšila tse ka har’a lintho tse sireletsang li hlahisa li-ion tsa conductive, tse ka khothalletsang ho arohana ha limolek’hule tsa polar, ho etsa hore resistivity e theohe ka potlako. Ha mocheso o ntse o phahama, ho hanyetsa ho fokotseha hoa fokotseha.