A method for measuring surface electric field intensity of insulators based on electroluminescent effect

被引：5
|
作者：
Yang, Xinyi [1 ]
Jia, Yunfei [1 ]
Gao, Lu [1 ]
Ji, Shengchang [1 ]
Li, Zhibing [2 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
[2] China Elect Power Res Inst, Beijing 100192, Peoples R China
来源：
ENERGY REPORTS | 2020年 / 6卷
基金：
国家重点研发计划;
关键词：
Electroluminescent effect; Insulator; Surface electric field intensity measurement; Non-contact measurement; SENSOR; AC;
D O I：
10.1016/j.egyr.2020.10.056
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：
The measurement for the surface electric field intensity of insulators based on electroluminescent effect is a non-contact measurement. By spraying a coating of epoxy paint mixed with ZnS:Cu electroluminescence powder on the surface of insulators, the part with high surface electric field intensity would be the first to glow. As the applied voltage increases, the area of luminous and the brightness increase. Therefore, the surface electric field distribution can be deduced by photographing and analyzing the luminescence of insulator surface coating. This method has successfully measured the surface electric field intensity distribution of disc insulators in GIL. Without the use of electric field probe, this method eliminates the electric field distortion caused by the probe completely. Besides, the permittivity of the coating can be decided according to the permittivity of the insulator material, and so eliminate the electric field distortion caused by the coating. The measure results of this method are in good agreement with reality. (C) 2020 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：1537 / 1543
页数：7
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