NDLI: Partial discharges in micrometer voids in PTFE

Content Provider	IEEE Xplore Digital Library
Author	Gaxiola, E.H.R. Wetzer, J.M.
Copyright Year	1996
Description	Author affiliation: Dept. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands (Gaxiola, E.H.R.)
Abstract	In this work, a high bandwidth experimental setup is used to measure the inception voltage, the waveform and the apparent charge of partial discharges (PD) in artificial voids in solid insulating materials. The investigations include microvoids, i.e. voids with characteristics dimensions below 100 /spl mu/m. In this paper, the results for PTFE (teflon) are presented. Several simplified models are used to estimate externally measurable PD quantities for given void geometries. A one-dimensional hydrodynamic model is used to obtain better insight into the relevant mechanisms and processes by comparison of measurements and simulation data. Experimental studies show that the measured values for the inception voltage correspond well with calculated inception voltage based on the critical streamer criterion. The hydrodynamic model provides a good qualitative description of the phenomena. The trends of externally measured correspond with those predicted by the authors' models.
Starting Page	420
Ending Page	423
File Size	352103
Page Count	4
File Format	PDF
ISBN	0780335317
ISSN	1089084X
DOI	10.1109/ELINSL.1996.549370
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Hydrodynamics Bandwidth Current measurement Charge measurement Voltage measurement Insulation Solid modeling Geometry Predictive models
Content Type	Text
Resource Type	Article

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