Longitudinal Dielectric Interfaces with Microstructures

Research output: Contribution to journalConference articleContributedpeer-review

Contributors

  • A. J. Amalanathan - , Zittau/Görlitz University of Applied Sciences (Author)
  • Stefan Kornhuber - , Zittau/Görlitz University of Applied Sciences (Author)
  • Fabian Kopsch - , Leibniz Institute of Polymer Research Dresden (Author)
  • André Knapp - , Leibniz Institute of Polymer Research Dresden (Author)
  • Anett Müller - , Leibniz Institute of Polymer Research Dresden (Author)
  • Andreas Fery - , Leibniz Institute of Polymer Research Dresden (Author)

Abstract

Solid-solid interfaces e.g., in cable accessories are important to achieve a necessary dielectric performance. However, within the sealing, the possibility of voids and cracks is not completely avoidable and needs to be focused. Such imperfect dielectric tightness at the interfaces increases localized electric field leading to partial discharges and subsequent breakdown process. Herein, we report, enhancement in electrical interface strength by using controlled structural features (Wrinkles) on the surface of longitudinal interface materials. Electric field simulations were done on these structures using different positioning of electrodes concerning the wrinkle shape. In addition, the trajectory of electron given by the wrinkle shape towards the high voltage electrode is measured along with ionization coefficient responsible for the avalanche mechanism.

Details

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalIET Conference Proceedings
Volume2023
Issue number46
Publication statusPublished - 2023
Peer-reviewedYes
Externally publishedYes

Conference

Title23rd International Symposium on High Voltage Engineering, ISH 2023
Duration28 August - 1 September 2023
CityGlasgow
CountryUnited Kingdom

Keywords

ASJC Scopus subject areas

Keywords

  • ELECTRIC FIELD, INTERFACE, IONIZATION, TRAJECTORY, VOIDS, WRINKLES