Zingwe zolumikizirana zomwe zimakhala ndi ma frequency ambiri komanso zotayika pang'ono nthawi zambiri zimapangidwa ndi polyethylene yokhala ndi thovu kapena polypropylene yokhala ndi thovu ngati zinthu zotetezera kutentha, mawaya awiri oteteza kutentha ndi waya umodzi (msika wamakono ulinso ndi opanga omwe amagwiritsa ntchito ma double ground awiri) mu makina ozungulira, zojambulazo za aluminiyamu ndi tepi ya polyester ya rabara kuzungulira waya woteteza kutentha ndi waya woteteza kutentha, kapangidwe ka njira zotetezera kutentha ndi kuwongolera njira, kapangidwe ka mzere wotumizira mwachangu, zofunikira zamagetsi ndi chiphunzitso cha kutumiza.
Chofunikira cha woyendetsa
Kwa SAS, yomwenso ndi mzere wotumizira ma frequency ambiri, kufanana kwa kapangidwe ka gawo lililonse ndikofunikira kwambiri podziwa kuchuluka kwa ma transmission a chingwe. Chifukwa chake, monga kondakitala wa mzere wotumizira ma frequency ambiri, pamwamba pake ndi pozungulira komanso posalala, ndipo kapangidwe ka mkati mwa lattice ndi kofanana komanso kokhazikika kuti zitsimikizire kufanana kwa katundu wamagetsi muutali; kondakitala ayeneranso kukhala ndi kukana kochepa kwa DC; Nthawi yomweyo ayenera kupewa chifukwa cha waya, zida kapena zida zina zomwe zimayambitsidwa ndi kupindika kwa nthawi ndi nthawi kwa kondakitala wamkati kapena kupindika kosasinthasintha, kusintha ndi kuwonongeka, ndi zina zotero, mu mzere wotumizira ma frequency ambiri, kukana kwa kondakitala ndiye chinthu chachikulu chomwe chimayambitsa kuchepa kwa chingwe (ma frequency apamwamba gawo loyambira 01- magawo a attenuation), pali njira ziwiri zochepetsera kukana kwa kondakitala: kuwonjezera m'mimba mwake wa kondakitala, kusankha zida zowongolera zochepa. M'mimba mwake wa kondakitala ukawonjezeka, kuti akwaniritse zofunikira za impedance yodziwika bwino, m'mimba mwake wakunja wa insulation ndi m'mimba mwake wakunja wa chinthu chomalizidwa zimawonjezeka molingana, zomwe zimapangitsa kuti ndalama ziwonjezeke komanso kukonza kosasangalatsa. Mwachidule, pogwiritsa ntchito chitsulo chowongolera siliva, kukula kwakunja kwa chinthu chomalizidwa kudzachepa, ndipo magwiridwe antchito adzakwera kwambiri, koma chifukwa mtengo wa siliva ndi wokwera kwambiri kuposa mtengo wa mkuwa, mtengo wake ndi wokwera kwambiri kuti upangidwe mochuluka, kuti tiganizire mtengo wake komanso kukana kwake kutsika, timagwiritsa ntchito mphamvu ya khungu popanga chitsulo chowongolera chingwecho. Pakadali pano, kugwiritsa ntchito chitsulo chowongolera mkuwa cha SAS 6G kumatha kukwaniritsa magwiridwe antchito amagetsi, pomwe SAS 12G ndi 24G zayamba kugwiritsa ntchito chitsulo chowongolera siliva.
Pakakhala mphamvu yosinthira kapena mphamvu yosinthira yamagetsi mu conductor, kugawa kwa mphamvu mkati mwa conductor sikofanana. Pamene mtunda kuchokera pamwamba pa conductor ukuwonjezeka pang'onopang'ono, kuchuluka kwa mphamvu yamagetsi mu conductor kumachepa kwambiri, ndiko kuti, mphamvu yamagetsi mu conductor idzayang'ana pamwamba pa conductor. Kuchokera ku transverse plane perpendicular kupita ku direction ya mphamvu yamagetsi, mphamvu yamagetsi ya gawo lapakati la conductor kwenikweni ndi zero, ndiko kuti, palibe mphamvu yamagetsi, ndipo gawo lokha lomwe lili m'mphepete mwa conductor lidzakhala ndi ma subcurrents. Mwachidule, mphamvu yamagetsi imakhala yokhazikika mu gawo la "khungu" la conductor, kotero imatchedwa zotsatira za khungu. Chifukwa cha izi ndikuti mphamvu yamagetsi yosintha imapanga mphamvu yamagetsi ya vortex mkati mwa conductor, yomwe imachotsedwa ndi mphamvu yoyambirira. Zotsatira za khungu zimapangitsa kuti kukana kwa kondakitala kuwonjezereke ndi kuchuluka kwa ma frequency alternating current, ndipo zimapangitsa kuti mphamvu ya mawaya ichepetse, zomwe zimadya chuma chachitsulo, koma popanga zingwe zolumikizirana zama frequency apamwamba, mfundo iyi ingagwiritsidwe ntchito kuchepetsa kugwiritsa ntchito zitsulo pogwiritsa ntchito siliva pamwamba pa maziko okwaniritsa zofunikira zomwezo, potero kuchepetsa ndalama.
Chofunikira pa kutchinjiriza
Mofanana ndi zofunikira za kondakitala, chotetezera kutentha chiyeneranso kukhala chofanana, ndipo kuti mupeze dielectric constant s yotsika komanso kutayika kwa dielectric. Angle tangent value, zingwe za SAS nthawi zambiri zimagwiritsa ntchito thovu loteteza kutentha. Ngati digiri ya thovu ili yoposa 45%, thovu la mankhwala limakhala lovuta kulipeza, ndipo digiri ya thovu silikhazikika, kotero chingwe chomwe chili pamwamba pa 12G chiyenera kugwiritsa ntchito thovu loteteza kutentha. Monga momwe chithunzi chili pansipa, pamene digiri ya thovu ili pamwamba pa 45%, gawo la thovu la thupi ndi thovu la mankhwala lomwe limawonedwa pansi pa maikulosikopu, ma pores a thovu la thupi amakhala ochepa kwambiri, pomwe ma pores a thovu la mankhwala amakhala ochepa kwambiri:
thovu lakuthupi Mankhwalathovu
Nthawi yotumizira: Epulo-20-2024
