Cov laj thawj rau kev laus ntawm high - voltage confectage mement Capacitors
Sep 17, 2025| High - Voltage conftecitors yog cov khoom siv ua kom cov khoom siv hauv lub zog, hluav taws xob ua ke, cov khoom siv tshuaj kho mob, ntawm cov neeg ua haujlwm nrawm, ntawm lwm tus. Lawv cov xeeb ceem ua haujlwm yog kom withstand heev voltage thiab tam sim no hloov tus nqi nyob hauv lub sijhawm luv luv. Txawm li cas los xij, zoo li lwm cov tshuaj muaj yees, lawv yuav ua rau muaj kev ua rau tsis taus, lossis laus, thaum lub sijhawm ua haujlwm ntev.
Ⅰ. Hluav Taws Xob Kev Nyuaj Hluav Taws Xob: Cov Lus Qhia Tshwj Xeeb
⑴ Kev tso tawm ib hom: Qhov no yog qhov ua rau muaj kev laus hauv siab - voltage capacitors.
Lub tshuab hluav taws xob: Thaum muaj npuas, impurities nyob rau hauv lub capacitortrric lub zog ntawm cov chaw no yuav ntau tshaj li lub zos rhuav lub zog ntawm lub nruab nrab. Raws li qhov tshwm sim, me me, rov ua dua tshiab thiab kev coj ua tau tshwm sim, uas yog lub npe hu ua kev tawm hauv zos.
⑵ OverVoltage:
OverVoltage: txawm tias cov kev ua haujlwm luv luv yuav tshaj qhov txwv tsis pub txwv ntawm qhov nruab nrab, ncaj qha nrawm nrawm nrawm ua kev laus.
Ii. Thermal Kev Nyuaj Siab Kev Nyab Xeeb: Tus Neeg Kaus Tua Neeg Mob
⑴ dielectric poob cua sov: capacitors tsim hluav taws kub vim yog dienectric uas poob raws li kev hloov chaw hluav taws xob. Nyob rau hauv high -} voltage mem tes thov, lub voltage (u) yog tsis muaj siab heev, tus nqi ntawm cov cua sov tsim tau tseem muaj nqis.
⑵ ESR poob thiab cua kub tiam: qhov sib npaug Nov yog thawj qhov chaw ntawm cov cua kub tiam capacitors.
⑶ Cov nyhuv thermal txuam nrog: Yog tias cov cua sov yog ntau dua li qhov kub dissipated, qhov ntsuas kub sab hauv yuav nce mus ntxiv. Kev kub siab yuav: txo cov rwb thaiv tsev rwb thaiv tsev ntawm lub dielectric. Ua kom nrawm dua cov tshuaj tsis zoo nyob hauv dielectric.
III. Tshuaj lom neeg thiab kev laus ntawm lub cev ntawm dielectric ntaub ntawv
Kev ua yeeb yaj kiab di ntsha: feem ntau siv cov ntaub ntawv polypropylene (bopp) yuav muaj cov hluav taws xob hauv hluav taws xob raug,
Kev laus ntawm tus neeg sawv cev impregnating: kev ua haujlwm ntawm tus neeg sawv cev impregnating yog sau cov khoob ntawm cov naab, txhim kho lub siab ua hauj lwm thiab txhim kho cua sov dissipation. Txawm li cas los xij, tus neeg sawv cev impregnating yuav maj mam oxidize, polymerize lossis nqus dej noo, ua rau nws muaj kev tiv thaiv thiab kev tiv thaiv.
⑶ electroforchical corrosion: kev intrusion ntawm noo noo thiab oxygen yog tus yeeb ncuab ntawm capacitors. Lawv yuav yauv mus nrog cov electrodes ntawm daim duab qhia ntawv me me (feem ntau yog zinc tsis zoo (C) Qhov no yog cov hom tseem ceeb thaum lub "tus kheej-}} kho" muaj peev xwm ntawm daim duab ua yeeb yaj kiab me me.