Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1061-1067 |
| Number of pages | 7 |
| Journal | Journal of Electrostatics |
| Volume | 71 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2013 |
| Externally published | Yes |
Keywords
- 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