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Effect of modified surface structure of impregnated polypropylene film on capacitor dielectric properties during thermal ageing

Die Auswirkung modifizierter Strukturen imprägnierten Polypropylen-Films auf die dielektrischen Eigenschaften eines Kondensators bei thermischer Alterung

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Contents

The results of ageing tests of biaxialy oriented impregnated capacitor polypropylene films with modified and unmodified surface structure are presented in this paper. The temperature dependence of factorD=tan δ0 (where tan δ1 and tan δ0 relate to impregnating fluid aged with and without polypropylene film, respectively), the relationship between factorD and the aromatic content of impregnating fluid and time dependence of dielectric strength for both types of film are presented. The possible destroying mechanism of the capacitor dielectric system is given.

Übersicht

Der Aufsatz stellt die Ergebnisse von Alterungsprüfungen an imprägnierten Polypropylen-Folien für Kondensatoren vor. Es werden die Temperaturabhängigkeit des QuotientenD der tan δ-Werte mit und ohne Polypropylen-Film bezogen auf die Alterung des Imprägniermittels, die Beziehung des FaktorsD mit dem Aromatenanteil des Imprägniermittels und die Zeitabhängigkeit der dielektrischen Festigkeit für die beiden Arten des Films behandelt. Der mögliche Mechanismus der Zerstörung des dielektrischen Systems des Kodensators wird angegeben.

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Authors and Affiliations

  1. Electromechanical Faculty, Saint-Petersburg Technical University, Politckhuicheskaya 29, 195 251, Saint-Petersburg, Russia

    A. M. Andreyev & N. M. Zhuravleva

  2. Department of Electrical Engineering, University of Prishtina, Vidovdanska b.b. 38000, Prishtina, Yugoslavia

    M. Jevtić

Authors
  1. A. M. Andreyev
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  2. M. Jevtić
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  3. N. M. Zhuravleva
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Correspondence to M. Jevtić.

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Andreyev, A.M., Jevtić, M. & Zhuravleva, N.M. Effect of modified surface structure of impregnated polypropylene film on capacitor dielectric properties during thermal ageing. Electrical Engineering 81, 271–274 (1998). https://doi.org/10.1007/BF01233279

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  • DOI: https://doi.org/10.1007/BF01233279

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