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 |
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Journal | I E E E International Symposium on Electrical Insulation. Conference Record |
Pages (from-to) | 307-309 |
ISSN | 0164-2006 |
DOIs | |
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 |
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Country/Territory | United States |
City | Baltimore, MD |
Period | 07/06/1992 → 10/06/1992 |
Internet address |