DocumentCode :
1040841
Title :
Flashover Tests at Project UHV on Salt-Contaminated Insulators, Part II
Author :
Kawai, Mikio
Author_Institution :
Project UHV, General Electric Company
Issue :
8
fYear :
1970
Firstpage :
1791
Lastpage :
1799
Abstract :
Results of experimental studies on the contamination flashover strength of EHV insulator strings are presented. The results compare favorably with a theoretical analysis by Boehne and Weiner in 1966-1967. Nonlinearity of insulation strength with insulator length has been investigated, employing a steam fog method to simulate natural humidity and fog. The nonlinearity is caused by nonuniform voltage distribution along contaminated insulator strings. Such nonuniform distribution is created by the capacitance of insulator units to ground. This relationship was clearly demonstrated by several indirect methods. The results should be very important in future contamination studies.
Keywords :
Capacitance; Contamination; Flashover; Frequency; Humidity; Insulation; Insulator testing; Power transmission lines; System testing; Voltage;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/TPAS.1970.292763
Filename :
4074263
Link To Document :
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