Partial discharge measurements in the three-layer dielectrics with a barrier

S. M. Lebedev, O. S. Gefle, Y. P. Pokholkov, E. Gockenbach, H. Borsi, V. Wasserberg, N. Abedi, J. Szczechowski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is a well-known fact that the breakdown voltage of dielectrics in a divergent field may be increased by using an additional insulating layer (A barrier) placed at the optimal position between the electrodes. In our previous works we reported that this effect is observed not only in the divergent electric field but also in moderately non-uniform and quasi-uniform electric fields. This paper is devoted to the investigation of the barrier effect in solid dielectrics in a quasi-uniform electric field, i.e. the study of relationship between partial discharge activity and the barrier position in the insulating gap. It is established that PD-parameters depend on the barrier position in the gap. In particular, the ignition voltage of PD with magnitude of 10 pC is increased by 20-50% at the optimal barrier position compared to that for other barrier positions.

Original languageEnglish
Title of host publicationConference Record of IEEE International Symposium on Electrical Insulation
Pages123-126
Number of pages4
Publication statusPublished - 2004
EventConference Record of IEEE International Symposium on Electrical Insulation - Indianapolis, IN, United States
Duration: 19 Sep 200422 Sep 2004

Other

OtherConference Record of IEEE International Symposium on Electrical Insulation
CountryUnited States
CityIndianapolis, IN
Period19.9.0422.9.04

ASJC Scopus subject areas

  • Building and Construction
  • Electrical and Electronic Engineering

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  • Cite this

    Lebedev, S. M., Gefle, O. S., Pokholkov, Y. P., Gockenbach, E., Borsi, H., Wasserberg, V., Abedi, N., & Szczechowski, J. (2004). Partial discharge measurements in the three-layer dielectrics with a barrier. In Conference Record of IEEE International Symposium on Electrical Insulation (pp. 123-126)