Effects of surface conductivity on surface charging behavior of DC-GIL spacers

被引：25

作者：

Chen, Junhong ^{[1
]}

Xue, Jianyi ^{[1
]}

Dong, Junhao ^{[1
]}

Li, Yuan ^{[1
]}

Deng, Junbo ^{[1
]}

Zhang, Guan-Jun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2020年 / 27卷 / 03期

关键词：

Surface charging; Conductivity; Surface treatment; Electric fields; Insulation; Ions; Leakage currents; surface charge accumulation; surface conductivity; surface charging mechanism; DC-GIL; FIELD DISTRIBUTION; EPOXY-RESIN; INSULATORS; ACCUMULATION; SYSTEMS; AIR;

D O I：

10.1109/TDEI.2020.008707

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, a simulation model is established to study the effect of surface conductivity on the accumulation of surface charge. The simulation shows that hetero-charges increase on areas away from the high voltage electrode and the electric field distribution along the surface becomes more uniform with increased surface conductivity. The dominant surface charging mechanism changes from conduction through the bulk of the insulation to surface conduction with increased surface conductivity. When the surface conductivity ranges from 1*10(-15) to 5*10(-14) S for a convex spacer surface, an optimal surface charge suppression and electric field homogeneity can be realized.

引用

页码：1038 / 1045

页数：8

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