Grading Structure Design of Surge Arrester for 1000-kV Ultra-high Voltage Air-insulated Substation

被引：0
|
作者：
He, Jinliang [1 ]
Hu, Jun [1 ]
Zhang, Bo [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
来源：
ICHVE 2008: 2008 INTERNATIONAL CONFERENCE ON HIGH VOLTAGE ENGINEERING AND APPLICATION | 2008年
关键词：
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Since it has a great height, large volume and complicated configuration, the 1000-kV ultra-high voltage surge arrester has a very nonuniform potential distribution, which leads to the depressed service life and low safe reliability. This paper proposed the three-dimensional FEM and circuit analytic method to analyze and improve the potential distribution of the 1000-kV surge arrester. An optimal grading ring structure and parallel capacitors arrangement were proposed, the potential distribution coefficient would be controlled within +/- 5%. The tested results show the analysis results are very accurate.
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页码：84 / 87
页数：4
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