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Comparison of lightning characteristics of selected insulating synthetic esters with mineral oil
- Source :
- 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL).
- Publication Year :
- 2017
- Publisher :
- IEEE, 2017.
-
Abstract
- This article presents the results of experimental studies concerning the lightning characteristics of two different commercial synthetic ester liquids and mineral oil. The measurements were conducted at both negative and positive standard lightning impulse voltage using a point-to-sphere electrode system. The step method recommended by the IEC 897 Standard was extended to the light emission detection using a photomultiplier technique. On this basis comparisons were made using the point of view of lightning impulse breakdown voltages (LIBV) obtained, times to breakdown (TtB) measured and the light oscillograms registered. The results concerning LIBV and TtB showed that at negative polarity both the esters have almost the same lightning characteristics which are slightly below the characteristics of mineral oil while at positive polarity the results show an improvement. Concerning the light emission, the mineral oil tested behaves as more resistant against the appearance of fast light pulses that indicate the intense stepwise propagating discharges.
- Subjects :
- 010302 applied physics
Photomultiplier
Materials science
020209 energy
Polarity symbols
Analytical chemistry
02 engineering and technology
Impulse (physics)
01 natural sciences
0103 physical sciences
Electrode
Lightning impulse voltage
0202 electrical engineering, electronic engineering, information engineering
medicine
Light emission
Mineral oil
medicine.drug
Voltage
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2017 IEEE 19th International Conference on Dielectric Liquids (ICDL)
- Accession number :
- edsair.doi...........5d422f82f9bebd927633f87690e4dc04
- Full Text :
- https://doi.org/10.1109/icdl.2017.8124650