Influencing factors in partial discharge cable performance characterization under low and medium vacuum conditions

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Abstract

Prior study has shown that quantifying performance of cables operational under a wide range of gas pressures, based on partial discharge inception voltage in relation to its design, is feasible. However, inception of partial discharges occur at weakest spots, of which the occurrence has a stochastic nature. This raises the question on the reproducibility of the methodology. Multiple cables of the same type are tested as well a single cable multiple times. Analyses of variance is used to evaluate the reproducibility and in some cases a significant difference is found. Besides reproducibility, test factors like method of voltage application may affect results and is investigated as well.

Original languageEnglish
Title of host publication2018 IEEE 2nd International Conference on Dielectrics, ICD 2018
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781538663899
ISBN (Print)978-1-5386-6389-9
DOIs
Publication statusPublished - 2018

Keywords

  • Cable insulation
  • Gas insulation
  • Partial discharge inception voltage
  • Partial discharges
  • Paschen curve
  • Vacuum insulation

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