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Condition Assessment of HV Bushings with Solid Insulation based on the SVM and the FDS Methods

Faculty of Electrical Engineering, Department of Electrotechnology and Diagnostics, West Pomeranian University of Technology, Sikorskiego 37, 70–313 Szczecin, Poland
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This paper is an extended version of our paper published in 2018 IEEE Innovative Materials and Technologies in Electrical Engineering (i-MITEL), 18–20 April 2018.
Energies 2020, 13(4), 853; https://doi.org/10.3390/en13040853
Received: 23 December 2019 / Revised: 11 February 2020 / Accepted: 14 February 2020 / Published: 15 February 2020
(This article belongs to the Section Electrical Power and Energy System)
This paper presents the dielectric response of the insulation of bushings as an effect of the simulated long-term aging process. The experiment was conducted under a condition of a high temperature difference between the current circuit and the cover. The dielectric response was measured with the FDS (Frequency Dielectric Spectroscopy) and the SVM (Step Voltage Measurement) methods. The research has shown the correlation between the aging time and some parameters obtained with the FDS and SVM analysis. View Full-Text
Keywords: power transformers; bushings; relaxation; step voltage measurement power transformers; bushings; relaxation; step voltage measurement
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Subocz, J.; Mrozik, A.; Bohatyrewicz, P.; Zenker, M. Condition Assessment of HV Bushings with Solid Insulation based on the SVM and the FDS Methods. Energies 2020, 13, 853.

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