Lightning impulse (LI) breakdown testing of a rubber-epoxy interface

Autor/innen

  • Cecilia Forssén
  • Anne Christerson
  • Daniel Borg

DOI:

https://doi.org/10.5324/nordis.v0i25.2371

Schlagworte:

Lightning impulse, Breakdown, Interface

Abstract

The lightning impulse (LI) breakdown strength of a rubber-epoxy interface was measured using a test cell developed earlier for AC breakdown testing. The electrically active length of the rubber-epoxy interface in the test cell was about 10 mm. The rubber was compressed and the pressure in the rubber-epoxy interface was controlled and measured. It was shown that the test cell performed well under LI breakdown testing with the majority of the breakdowns located at the rubber-epoxy interface as desired and not in the bulk insulation. A higher LI breakdown strength was obtained for smoother epoxy surfaces.

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Veröffentlicht

2017-10-03

Ausgabe

Nr. 25 (2017): Proceedings of the 25th Nordic Insulation Symposium

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Articles

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