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Surface charge accumulation and decay on a spacer stressed with DC voltages at atmospheric conditions

Sättigungskonzentration und Abklingverhalten der Oberflächenladung an einem mit Gleichspannung beanspruchten Abstandshalter unter atmosphärischen Bedingungen

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Contents

Surface charge accumulation and its decay at a GIS spacer are studied at atmospheric conditions employing a two step-calibration method. The results show that the accumulation saturates within 30 minutes; the dominant mechanism of surface charge accumulation is the drift of charged particles via air, while that of the decay is surface conduction. The characteristics are similar at both polarities.

Übersicht

Die Konzentration und das Abklingen von Oberflächenladungen an einem GIS Abstandshalter wurden unter atmosphärischen Bedingungen mit Hilfe eines zweistufigen Kalibrierungsverfahrens untersucht. Die Ergebnisse zeigen eine Sättigung der Ladungskonzentration innerhalb von 30 Minuten. Als Hauptursache der Ladungskonzentration ist die Drift geladener Teilchen in Luft anzusehen, während das Abklingen auf die Oberflächenleitung zurückzuführen ist. Ähnliche Charakteristiken ergeben sich mit beiden Polaritäten.

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Authors and Affiliations

  1. High Voltage Laboratory, Delft Iniversity of Technology, 2628 CD, Delft, The Netherlands

    T. Jing M. Sc.,  P. H. F. Moshuis &  F. H. Kreuger

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  1. T. Jing M. Sc.
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  2. P. H. F. Moshuis
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  3. F. H. Kreuger
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Jing, T., Moshuis, P.H.F. & Kreuger, F.H. Surface charge accumulation and decay on a spacer stressed with DC voltages at atmospheric conditions. Archiv f. Elektrotechnik 74, 315–319 (1991). https://doi.org/10.1007/BF01573907

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  • DOI: https://doi.org/10.1007/BF01573907

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