DocumentCode
1184537
Title
The Accuracy of Statistical Methods in Evaluating the Insulation of EHV Systems
Author
Papadias, B.C.
Author_Institution
National Technical University
Issue
3
fYear
1979
fDate
5/1/1979 12:00:00 AM
Firstpage
992
Lastpage
999
Abstract
The insulation of a 400 KV transmission line as far as switching overvoltages are concerned has been evaluated through the probabilistic approach. The statistical data of switching overvoltages have been obtained by means of one thousand line reclosing operations simulated through an appropriate computer program The switching tests have been grouped to study the influence of the statistical pattern. The risk of failure as calculated by means of three approved statistic al diagrams has overlapping regions resulting in low- reliability insulation values. To increase the reliability of the results it looks necessary that some relevant universal criteria should be specified.
Keywords
Computational modeling; Computer simulation; Dielectrics and electrical insulation; Insulation testing; Power system reliability; Power transmission lines; Statistical analysis; Statistical distributions; Surges; Transmission line theory;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1979.319257
Filename
4113567
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