Anomalous discharging current in polymethylpentene

Sotaro Asai, Yoshimichi Ohki

    研究成果: Conference contribution

    抄録

    Discharging current which is measured after voltage application on a dielectric solid usually flows in the opposite direction to the applied field. Anomalous discharging current which flows in the same direction as the applied field is observed in polymethylpentene at temperatures higher than 100 °C. The effects of electrical stress and voltage application period on the appearance of anomalous current were examined. On the condition when the discharging current becomes anomalous, layers of hetero charges accumulated during voltage application are observed with the pulsed electroacoustic method. The accumulated charges decrease significantly after the anomalous discharging current was observed for 5 minutes. On the assumption that charge movement is ruled by the electric field formed by space charges, simulation of discharging current was carried out. The simulated discharging current agrees well with the experimental data, when it is calculated by assuming the mobility of positive charge to be μ p = 2.5 × 10 -10 cm 2/Vs and that of the negative charge to be μ n = 7 × 10 -11 cm 2/Vs.

    元の言語English
    ホスト出版物のタイトルConference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report
    出版者IEEE
    ページ496-499
    ページ数4
    出版物ステータスPublished - 1995
    イベントProceedings of the 1995 Conference on Electrical Insulation and Dielectric Phenomena - Virginia Beach, VA, USA
    継続期間: 1995 10 221995 10 25

    Other

    OtherProceedings of the 1995 Conference on Electrical Insulation and Dielectric Phenomena
    Virginia Beach, VA, USA
    期間95/10/2295/10/25

    Fingerprint

    Electric potential
    Flow of solids
    Electric space charge
    Electric fields
    Temperature

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Industrial and Manufacturing Engineering
    • Building and Construction

    これを引用

    Asai, S., & Ohki, Y. (1995). Anomalous discharging current in polymethylpentene. : Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report (pp. 496-499). IEEE.

    Anomalous discharging current in polymethylpentene. / Asai, Sotaro; Ohki, Yoshimichi.

    Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report. IEEE, 1995. p. 496-499.

    研究成果: Conference contribution

    Asai, S & Ohki, Y 1995, Anomalous discharging current in polymethylpentene. : Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report. IEEE, pp. 496-499, Proceedings of the 1995 Conference on Electrical Insulation and Dielectric Phenomena, Virginia Beach, VA, USA, 95/10/22.
    Asai S, Ohki Y. Anomalous discharging current in polymethylpentene. : Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report. IEEE. 1995. p. 496-499
    Asai, Sotaro ; Ohki, Yoshimichi. / Anomalous discharging current in polymethylpentene. Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report. IEEE, 1995. pp. 496-499
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    title = "Anomalous discharging current in polymethylpentene",
    abstract = "Discharging current which is measured after voltage application on a dielectric solid usually flows in the opposite direction to the applied field. Anomalous discharging current which flows in the same direction as the applied field is observed in polymethylpentene at temperatures higher than 100 °C. The effects of electrical stress and voltage application period on the appearance of anomalous current were examined. On the condition when the discharging current becomes anomalous, layers of hetero charges accumulated during voltage application are observed with the pulsed electroacoustic method. The accumulated charges decrease significantly after the anomalous discharging current was observed for 5 minutes. On the assumption that charge movement is ruled by the electric field formed by space charges, simulation of discharging current was carried out. The simulated discharging current agrees well with the experimental data, when it is calculated by assuming the mobility of positive charge to be μ p = 2.5 × 10 -10 cm 2/Vs and that of the negative charge to be μ n = 7 × 10 -11 cm 2/Vs.",
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    AB - Discharging current which is measured after voltage application on a dielectric solid usually flows in the opposite direction to the applied field. Anomalous discharging current which flows in the same direction as the applied field is observed in polymethylpentene at temperatures higher than 100 °C. The effects of electrical stress and voltage application period on the appearance of anomalous current were examined. On the condition when the discharging current becomes anomalous, layers of hetero charges accumulated during voltage application are observed with the pulsed electroacoustic method. The accumulated charges decrease significantly after the anomalous discharging current was observed for 5 minutes. On the assumption that charge movement is ruled by the electric field formed by space charges, simulation of discharging current was carried out. The simulated discharging current agrees well with the experimental data, when it is calculated by assuming the mobility of positive charge to be μ p = 2.5 × 10 -10 cm 2/Vs and that of the negative charge to be μ n = 7 × 10 -11 cm 2/Vs.

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