DocumentCode :
3772582
Title :
Self heating of insulators
Author :
A. Refsum
Author_Institution :
The Queen´s University of Belfast
fYear :
1983
Firstpage :
9
Lastpage :
11
Abstract :
The voltage distribution over the surface of an insulator in humid conditions is determined by the shape of the insulator and the surface resistivity. The latter changes very rapidly with the temperature rise caused by the Joulean heating in the surface layer. In the paper a comparison is made between computed and observed temperature distributions on a cylindrical and on a disc shaped glass insulator. The computation is based on a simple thermal model of the insulator and the known behaviour of the surface resistivity. The results demonstrates the importance of the thermal properties of the insulator in controlling the temperature and the associated voltage distribution.
Keywords :
"Insulators","Temperature distribution","Humidity","Conductivity","Heating","Mathematical model","Electrodes"
Publisher :
ieee
Conference_Titel :
Electrical/Electronical Insulation Conference, 1983 EIC 6th
Print_ISBN :
978-1-5090-3114-6
Type :
conf
DOI :
10.1109/EEIC.1983.7465022
Filename :
7465022
Link To Document :
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