Influence of angles of V-strings on DC flashover characteristics of polluted insulators in high altitude areas

Using a high-speed camera, the fundamental behaviors of arcs on the surfaces of two types of 300 kN porcelain insulators were studied under DC voltages. The test results showed that it was quite easy for the arcs on porcelain insulator surfaces to levitate from insulator surfaces in high altitude ar...

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Bibliographic Details
Published in2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena pp. 449 - 452
Main Authors Zhang Fuzeng, Wang Xin, Long Biao, Wang Liming, Guan Zhicheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2006
Subjects
Cable insulation
Dielectrics and electrical insulation
Flashover
Insulator testing
Pollution
Porcelain
Power transmission lines
Structural beams
Surface contamination
Voltage
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ISBN1424405467
9781424405466
ISSN0084-9162
DOI10.1109/CEIDP.2006.311966

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Summary:Using a high-speed camera, the fundamental behaviors of arcs on the surfaces of two types of 300 kN porcelain insulators were studied under DC voltages. The test results showed that it was quite easy for the arcs on porcelain insulator surfaces to levitate from insulator surfaces in high altitude areas (1970 m). The influence of angles, used for different V-strings of insulator configurations, on DC flashover behaviors of contaminated insulators was very obvious. In this paper, the effects of the angles of V-strings on DC flashover characteristics of two types of polluted insulators (anti-fog insulator and tri-shed DC suspension insulator) were investigated.
ISBN:1424405467
9781424405466
ISSN:0084-9162
DOI:10.1109/CEIDP.2006.311966