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Phase change materials for use in thermally and electrically stressed insulation for high voltage applications

  • The temperature of high voltage equipment is often the limiting factor when transmitting electrical energy because the electrical insulation can get severely aged when the temperature is exceeding a certain limit. Hence, cooling has to be improved or heat generation must be reduced to avoid damage of the insulation. In this paper a new method was examined by investigating electrically insulating phase change materials which are able to store latent heat during a phase change from the solid to liquid state in times of high energy demand. To verify the electrically insulating properties of paraffins, one class of phase change materials, a special test cell was designed allowing the determination of breakdown voltage of phase change materials. The measurements on one paraffin sample proved the promising electrical insulating properties and it was shown that the breakdown voltage in the liquid state is comparable …

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Author:Jürgen Hartmann, S. Harrer, C. Dotterweich, Markus H. Zink, Frank Hemberger, Hans-Peter Ebert, Tim Schnitzler
Persistent identifier:https://ieeexplore.ieee.org/iel7/7541933/7548553/07548675.pdf
ISBN:978-1-4673-8706-4
Parent Title (English):2016 IEEE Electrical Insulation Conference
Publisher:IEEE
Document Type:Conference Proceeding
Language:English
Year of publication:2016
Publishing Institution:Hochschule für Angewandte Wissenschaften Würzburg-Schweinfurt
Release Date:2020/12/04
First Page:605
Last Page:608
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik
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