Experimental considerations on the possible impact of space charge accumulation on partial discharges activity for wire insulations

Hadi Naderiallaf, Paolo Giangrande, Michael Galea

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

The impact of space charge accumulation caused by unipolar square waveform excitation on partial discharge inception voltage (PDIV) and partial discharge extinction voltage (PDEV) for one Type-II insulated wire, i.e., Glass fibre and one Type-I insulated wire Polyether Ether Ketone (PEEK), are compared and investigated experimentally in this paper. Two rise times (i.e., 80 and 800 ns) and two impulse voltage repetition frequencies (i.e., 50 Hz and 2.5 kHz) are considered under different exposure times. Additionally, the influence of rise time and impulse voltage frequency on PDIV level of dispersion as a function of exposure time is compared for the two insulated wires, relying on the shape/slope parameter of the Weibull distribution.

Original languageEnglish
Title of host publicationICD 2022 - IEEE 2022 4th International Conference on Dielectrics, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages82-85
Number of pages4
ISBN (Electronic)9781665418331
DOIs
Publication statusPublished - 2022
Event4th IEEE International Conference on Dielectrics, ICD 2022 - Palermo, Italy
Duration: 3 Jul 20227 Jul 2022

Publication series

NameICD 2022 - IEEE 2022 4th International Conference on Dielectrics, Proceedings

Conference

Conference4th IEEE International Conference on Dielectrics, ICD 2022
Country/TerritoryItaly
CityPalermo
Period3/07/227/07/22

Keywords

  • electric machines
  • partial discharges
  • pulse width modulation
  • space charge
  • variable speed drives

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Polymers and Plastics

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