Isakhiwo esiyisisekelo se-zinc oxide arrester ipuleti le-valve.I-valve ye-zinc oxide ifakwe ngaphansi kwe-voltage yokusebenza, futhi okwamanje okudlulayo kuncane kakhulu, ngokuvamile ku-10~15μA, futhi izici ezingezona umugqa we-valve ye-zinc oxide zakhiwa ikakhulukazi ungqimba lomngcele wokusanhlamvu.Ijika layo lesici se-volt-ampere liseduze nalelo lesibophelelo esihle.
Ngaphezu kokungaqondile okuhle kakhulu, izibambi ze-zinc oxide nazo zinezinzuzo eziyinhloko ezilandelayo:
1. Alikho igebe.Ngaphansi kwesenzo se-voltage esebenzayo, ipuleti ye-valve ye-zinc oxide empeleni ilingana nesivikelo, esingeke siyibangele ukuthi iphele.Ngakho-ke, kungenzeka ukuhlukanisa i-voltage yokusebenza ngaphandle kwegebe lochungechunge.Ngenxa yokuthi alikho igebe, lingakwazi ukuphendula ngokushesha kugagasi lokushaqisa ngekhanda eliwumqansa, futhi ukukhishwa akubambezeli, futhi umphumela wokukhawulela i-overvoltage muhle kakhulu.Akuthuthukisi nje kuphela ukuthembeka kokuvikelwa kwemishini yamandla, kodwa futhi kunciphisa ukusebenza kwe-overvoltage emshinini wamandla, ngaleyo ndlela kuncishiswe izinga lokufaka elilinganiselwe lezinto zamandla.
2. Akukho ukugeleza okuqhubekayo.Kusukela ezicini ezingenhla, kungabonakala ukuthi kuphela lapho i-voltage esetshenziswa ku-valve ye-zinc oxide ifinyelela ku-voltage yokuqala yokusebenza, "i-conduction" iyenzeka.Ngemuva kokuthi "conduction", i-voltage esele ku-valve ye-zinc oxide ngokuyisisekelo iyafana neyamanje egeleza kuyo.Akubalulekanga kodwa ivelu engashintshi.Lapho i-voltage esetshenzisiwe yehla ngaphansi kwe-voltage yokusebenza, isimo "sokuqhuba" se-valve ye-zinc oxide siyanqanyulwa, esilingana ne-insulator.Ngakho-ke, ayikho i-frequency frequency freewheeling.
Isikhathi sokuthumela: Nov-16-2022