Lokacin da ƙarfin filin wutar lantarki da aka yi amfani da shi a cikin kayan lantarki ya isa ya haifar da fitarwa a cikin yanki na insulating, amma yanayin fitarwa wanda ba a kafa tashar fitarwa ba a cikin wurin fitarwa ana kiransa partial fitarwa.
HV HIPOT GDJF-2007 Dijital Partial Discharge Analyzer
Mai gwada fitar da juzu'i yana da na'urar gano fitarwa na dijital ta amfani da ƙa'idar hanyar bugun bugun jini:
Hanyar bugun jini na yanzu yana nufin cewa lokacin da ɓarna na ɓarna ya faru, ƙarshen samfurin Cx biyu suna yin canjin ƙarfin lantarki nan take Δu.A wannan lokacin, idan aka haɗa Ck na wutar lantarki zuwa Zd mai gano impedance, za a haifar da bugun bugun jini a cikin kewaye, kuma za a haifar da bugun jini ta hanyar tsinkayar ganowa.Ana gano bayanan ƙarfin bugun bugun jini, haɓakawa da nunawa, kuma ana iya tantance wasu mahimman sigogi na ɓangaren fitarwa (yafi yawan fitarwa q).
Ya kamata a nuna a nan cewa ba za a iya auna ainihin ɓangaren fitar da ke cikin samfurin gwajin ba.Saboda hanyar watsawa da shugabanci na juzu'in fitar da juzu'i a cikin samfurin gwajin suna da matukar rikitarwa, kawai muna buƙatar amfani da hanyar kwatance don gano yanayin gani na samfurin gwajin.A cikin cajin fitarwa, wato, allurar wani adadin wutar lantarki a ƙarshen samfurin gwajin kafin gwajin, daidaita haɓaka don kafa ma'auni, sannan kwatanta ɓangaren bugun jini a cikin samfurin gwajin da aka karɓa a ƙarƙashin ainihin ainihin ma'auni. wutar lantarki tare da ma'auni, don samun Bayyanar fitarwa na abin gwajin.
Mai gano juzu'i na dijital yana tabbatar da amincin bayanan da aka gano ta hanyar sarrafa siginar dijital, tacewa mai daidaitawa da sauran hanyoyin sarrafa sigina.
Lokacin aikawa: Jul-19-2022