The field enhancement factor of sand-blasted electrodes

Iain Wilson McAllister; Svend Vibholm (fratrådt)

doi:10.1109/ELINSL.1992.246995

The field enhancement factor of sand-blasted electrodes

Iain Wilson McAllister, Svend Vibholm (fratrådt)

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › Research › peer-review

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Abstract

A sample of six sand-blasted electrodes has been subjected to both mechanical and electrical investigations. When the surfaces of a series of conductors are mechanically treated, the resultant microscopic surface geometries will be similar, but not identical. As a consequence of this spread in the geometric characteristics of the roughened surfaces, the m values associated with nominally identical conductors will also exhibit a scatter. The method, which is based on the detection of discharge onset in a gaseous medium at the surface in question, was used to investigate the scatter in a field enhancement factor m for a particular surface treatment. For the sample studied, the mean electric field enhancement factor was found to be 6.6. The mechanical surface parameters indicated a sand aging effect

Original language	English
Journal	I E E E International Symposium on Electrical Insulation. Conference Record
Pages (from-to)	307-309
ISSN	0164-2006
DOIs	https://doi.org/10.1109/ELINSL.1992.246995
Publication status	Published - 1992
Event	1992 IEEE International Symposium on Electrical Insulation - Baltimore, MD, United States Duration: 7 Jun 1992 → 10 Jun 1992 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=654

Conference

Conference	1992 IEEE International Symposium on Electrical Insulation
Country	United States
City	Baltimore, MD
Period	07/06/1992 → 10/06/1992
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=654

Bibliographical note

Copyright 1992 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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10.1109/ELINSL.1992.246995

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title = "The field enhancement factor of sand-blasted electrodes",

abstract = "A sample of six sand-blasted electrodes has been subjected to both mechanical and electrical investigations. When the surfaces of a series of conductors are mechanically treated, the resultant microscopic surface geometries will be similar, but not identical. As a consequence of this spread in the geometric characteristics of the roughened surfaces, the m values associated with nominally identical conductors will also exhibit a scatter. The method, which is based on the detection of discharge onset in a gaseous medium at the surface in question, was used to investigate the scatter in a field enhancement factor m for a particular surface treatment. For the sample studied, the mean electric field enhancement factor was found to be 6.6. The mechanical surface parameters indicated a sand aging effect",

author = "McAllister, {Iain Wilson} and {Vibholm (fratr{\aa}dt)}, Svend",

note = "Copyright 1992 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.; 1992 IEEE International Symposium on Electrical Insulation ; Conference date: 07-06-1992 Through 10-06-1992",

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AU - Vibholm (fratrådt), Svend

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N2 - A sample of six sand-blasted electrodes has been subjected to both mechanical and electrical investigations. When the surfaces of a series of conductors are mechanically treated, the resultant microscopic surface geometries will be similar, but not identical. As a consequence of this spread in the geometric characteristics of the roughened surfaces, the m values associated with nominally identical conductors will also exhibit a scatter. The method, which is based on the detection of discharge onset in a gaseous medium at the surface in question, was used to investigate the scatter in a field enhancement factor m for a particular surface treatment. For the sample studied, the mean electric field enhancement factor was found to be 6.6. The mechanical surface parameters indicated a sand aging effect

AB - A sample of six sand-blasted electrodes has been subjected to both mechanical and electrical investigations. When the surfaces of a series of conductors are mechanically treated, the resultant microscopic surface geometries will be similar, but not identical. As a consequence of this spread in the geometric characteristics of the roughened surfaces, the m values associated with nominally identical conductors will also exhibit a scatter. The method, which is based on the detection of discharge onset in a gaseous medium at the surface in question, was used to investigate the scatter in a field enhancement factor m for a particular surface treatment. For the sample studied, the mean electric field enhancement factor was found to be 6.6. The mechanical surface parameters indicated a sand aging effect

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DO - 10.1109/ELINSL.1992.246995

M3 - Conference article

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EP - 309

JO - I E E E International Symposium on Electrical Insulation. Conference Record

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