NDLI: Surface flashover of dielectric materials used in pulsed power research

Content Provider	IEEE Xplore Digital Library
Author	Wilson, M.P. Fouracre, R.A. Given, M.J. MacGregor, S.J. Timoshkin, I.V. Thomas, K.J. Sinclair, M.A. Lehr, J.M.
Copyright Year	2007
Description	Author affiliation: Hydrodynamics Dept./Pulsed Power, Building H36, AWE Aldermaston, Reading RG7 4PR, United Kingdom (Thomas, K.J.; Sinclair, M.A.) \|\| HVT Research Group, Institute for Energy and Environment, University of Strathclyde, 204 George St, Glasgow G1 1XW, United Kingdom (Wilson, M.P.; Fouracre, R.A.; Given, M.J.; MacGregor, S.J.; Timoshkin, I.V.) \|\| Sandia National Laboratories, Advanced Accelerators and Exploratory Pulsed Power, Albuquerque, New Mexico, United States (Lehr, J.M.)
Abstract	Selection procedures for insulators used under high-voltage/high-current pulsed power conditions are not well defined, and insulator failure has occurred in large pulsed power facilities when the materials were selected based on experience with low frequency systems. For the latter systems, reliable design rules and procedures have been validated for applications under DC and power frequency conditions (50/60 Hz and 400 Hz in aircraft applications). A preliminary investigation of solid dielectric material behaviour under high dE/dt conditions in transformer oil has been undertaken. A 10-stage Marx generator, capable of producing output voltages in the region of 750 kV, was used in conjunction with an adaptable test assembly to determine the flashover properties of different materials. Results on the behaviour and ageing of solid insulators are reported, along with hold-off voltage performance and degradation due to surface discharges.
Starting Page	1665
Ending Page	1668
File Size	591136
Page Count	4
File Format	PDF
ISBN	9781424409136
DOI	10.1109/PPPS.2007.4652510
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface discharges Electric breakdown Flashover Electrodes Breakdown voltage Oil insulation Dielectrics
Content Type	Text
Resource Type	Article

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