Experimental study of epoxy surface discharge under different frequencies

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Titel: Experimental study of epoxy surface discharge under different frequencies
Autoren: Luo, T. (author), Zhao, W. (author), Ghaffarian Niasar, M. (author)
Quelle: 2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). :574-577
Verlagsinformationen: IEEE, 2021.
Publikationsjahr: 2021
Schlagwörter: 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology
Beschreibung: With widely use of power electronics in medium voltage level, there is increasing concern about behaviour of insulation material under arbitrary voltage stress. Solid-gas insulation is a general choice in medium voltage level. Therefore, it’s unavoidable to encounter surface discharge problem. In this paper, the surface discharge on epoxy-air interface is investigated, which is a commonly used insulation material. Point to plate electrode was used to test the surface flashover voltage and partial discharge (PD) behaviour at 50Hz, 500Hz, 1kHz, 2kHz and 5kHz. As the result, with increasing frequency, PDIV keeps roughly constant and flashover voltage first increases and then decrease, and the frequency obtaining highest flashover voltage is related to gap length.
High Voltage Technology Group
Publikationsart: Article
Conference object
DOI: 10.1109/ceidp50766.2021.9705381
Zugangs-URL: http://resolver.tudelft.nl/uuid:a49bb674-236e-4d03-b8a8-19e6a050629b
Rights: STM Policy #29
Dokumentencode: edsair.doi.dedup.....b3fec22eab9f2521cd50dc085be02eda
Datenbank: OpenAIRE
Beschreibung
Abstract:With widely use of power electronics in medium voltage level, there is increasing concern about behaviour of insulation material under arbitrary voltage stress. Solid-gas insulation is a general choice in medium voltage level. Therefore, it’s unavoidable to encounter surface discharge problem. In this paper, the surface discharge on epoxy-air interface is investigated, which is a commonly used insulation material. Point to plate electrode was used to test the surface flashover voltage and partial discharge (PD) behaviour at 50Hz, 500Hz, 1kHz, 2kHz and 5kHz. As the result, with increasing frequency, PDIV keeps roughly constant and flashover voltage first increases and then decrease, and the frequency obtaining highest flashover voltage is related to gap length.<br />High Voltage Technology Group
DOI:10.1109/ceidp50766.2021.9705381