Experimental measurements of partial discharge activity within LDPE/TiO2 nanocomposites

Nagat M.K. Abdel-Gawad, Adel Z. El Dein, Diaa-Eldin A. Mansour, Hanaa M. Ahmed, M. M. F. Darwish*, Matti Lehtonen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)


The presence of impurities, voids or gas bubbles during the manufacturing process of insulating materials of power cables leads to electrical degradation in the form of partial discharges (PDs). This paper aims to investigate the influence of incorporated titanium dioxide (TiO2) nanoparticles on the statistical parameters of PD activity within low density polyethylene (LDPE) matrix through using the solvent casting method. The surface morphology of synthesized LDPE/TiO2 nanocomposites was characterized by field emission scanning electron microscopy (FE-SEM). Then, the internal discharge measurements were performed using the traditional needle-plane configuration with the help of phase resolved partial discharge analyzer (PRPDA). This technique is used to analyze the statistical characteristics and feature of PDs with respect to the phase angle of applied voltage. It is found that the PD activity of all LDPE/TiO2 nanocomposite samples that represented by discharge magnitude, inception voltage, extinction voltage, and PD generation rate was enhanced compared to that of the pure LDPE. This was explained considering the effect of TiO2 nanoparticles in trapping process and initial electron generation inside the insulation material. Also, governing mechanisms for positive and negative cycle of PD activity were discussed.

Original languageEnglish
Title of host publicationProceedings of the 2017 19th International Middle-East Power Systems Conference, MEPCON 2017
Number of pages6
ISBN (Electronic)9781538609903
Publication statusPublished - 22 Feb 2018
MoE publication typeA4 Article in a conference publication
EventInternational Middle East Power Systems Conference - Cairo, Egypt
Duration: 19 Dec 201721 Dec 2017
Conference number: 19

Publication series

NameProceedings of the International Middle East Power Systems Conference
ISSN (Print)2573-3044


ConferenceInternational Middle East Power Systems Conference
Abbreviated titleMEPCON


  • Cable insulation
  • Internal partial discharge
  • LDPE
  • Polymer nanocomposites
  • T1O nanoparticles


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