Results 221 to 230 of about 86,487 (250)
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IEEE Electrical Insulation Magazine, 1992
For pt.XIV see ibid., vol.8, no.5, p.34 (1992). The effects of X-ray irradiation during partial discharge measurements are discussed. The partial discharge phenomena in cavities is detailed. A full-scale system capable of testing 138-kV-class post insulators under combined electric stress and X-ray radiation was implemented.
N. Fujimoto, S. Rizzetto, J.-M. Braun
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For pt.XIV see ibid., vol.8, no.5, p.34 (1992). The effects of X-ray irradiation during partial discharge measurements are discussed. The partial discharge phenomena in cavities is detailed. A full-scale system capable of testing 138-kV-class post insulators under combined electric stress and X-ray radiation was implemented.
N. Fujimoto, S. Rizzetto, J.-M. Braun
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2017 International Symposium on Electrical Insulating Materials (ISEIM), 2017
The authors have been investigating the deterioration characteristics of polypropylene (PP) films due to partial discharge (PD) in a closed void as a basic study of longterm deterioration of power capacitors. We reported that (1) the number of PD pulses decreased with time and then fluctuated, (2) through holes were observed only after the inception of
Ryouhei Yano +10 more
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The authors have been investigating the deterioration characteristics of polypropylene (PP) films due to partial discharge (PD) in a closed void as a basic study of longterm deterioration of power capacitors. We reported that (1) the number of PD pulses decreased with time and then fluctuated, (2) through holes were observed only after the inception of
Ryouhei Yano +10 more
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Improvement of partial discharge (PD) resistance of epoxy resin by using sulfur‐containing additives
Electrical Engineering in Japan, 1994AbstractIn the field of high‐voltage engineering, it has been desired for a long time to improve the internal PD resistance of epoxy resin without lowering other properties. Recently, the authors discovered that some sulfur compound as curing agents or simple additives improved the PD resistance of rubber markedly, and here an attempt has been made to ...
Yasuhiko Kako +3 more
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Partial discharge. XXI. Acoustic emission based PD source location in transformers
IEEE Electrical Insulation Magazine, 1995Acoustic emission-based partial discharge source location has been applied successfully to power transformers in both factory and field environments, and this method is becoming an established test procedure with a high success rate. With the aid of local utilities and utility laboratories that use acoustic emission apparatus daily, we expect further ...
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Synthesis of Partial Discharge Signals for Testing of PD Detection Algorithms in Generators
2022 International Conference on Power, Energy and Innovations (ICPEI), 2022Isara Sornsen +2 more
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Detecting and Monitoring Insulation Failure: A Review of Partial Discharge (PD) Detection Techniques
International Journal of Advances in Engineering and ManagementThe reliability and efficiency of electrical systems vitally depend on electrical insulation to prevent electricity leakage during transmission. However, due to various operational and environmental factors such as humidity, thermal stress, and others, insulation materials degrade over time. Therefore, detecting and monitoring insulation degradation at
Bakura MaiBunu +2 more
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An optical fiber sensing method for partial discharge in the HVDC cable system
International Journal of Electrical Power and Energy Systems, 2021Zhiheng Liu +2 more
exaly