Measurement of currents and floating potential in multilayer sensor due to oil-flow electrification

I. A. Metwally*, P. Leblanc, T. Paillat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper presents floating potential and current measurements due to oil-flow electrification inside amultilayer sensor incorporated in a closed loop filled with fresh transformer oil. All leakage currents at the sensor inlet and outlet, the capacitive current and the streaming current are measured. The waveforms of these currents, floating potential as well as the oil temperature at the sensor inlet are simultaneously recorded for laminar flow and at controlled operating conditions. The measured floating potentials are compared with the calculated ones under different oil-flow velocities and good agreement has been found.

Original languageEnglish
Pages (from-to)1061-1067
Number of pages7
JournalJournal of Electrostatics
Issue number6
Publication statusPublished - Dec 2013
Externally publishedYes


  • Electrical double layer
  • Floating potential measurement
  • Flow electrification
  • Mineral oil
  • Power transformers
  • Streaming current

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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