Suppression of Metallic Particle Lift-Off in GIS by a Nonlinear Resistivity Coating

被引：5

作者：

Nojima, Kenichi ^{[1
]}

Zhang, Xueqin ^{[2
]}

Matsuzaki, Hidehito ^{[3
]}

Ando, Hideyasu ^{[3
]}

Shiiki, Motoharu ^{[3
]}

Takei, Masafumi ^{[3
]}

机构：

[1] Toshiba Co Ltd, High Voltage Technol Grp, Yokohama, Kanagawa, Japan

[2] Toshiba Co Ltd, Ctr Res & Dev, Yokohama, Kanagawa, Japan

[3] Toshiba Co Ltd, Yokohama, Kanagawa, Japan

来源：

ELECTRICAL ENGINEERING IN JAPAN | 2014年 / 188卷 / 01期

关键词：

nonlinear resistivity coating; GIS; metallic particle; lift-off; DIELECTRIC-COATED ELECTRODES; FIELD;

D O I：

10.1002/eej.22535

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：

To suppress metallic particle lift-off in compact gas-insulated switchgear (GIS), a coating with nonlinear resistivity characteristics was developed for the inner surface of the GIS tank. An electrical field analysis that measured the current density and electric field (J-E) characteristic indicates that a nonlinear resistivity coating can reduce field intensification at triple junctions between metallic particles and the coating, and can effectively suppress particle lift-off. The results of experiments using a GIS mock-up model indicate that a nonlinear resistivity coating increases the lift-off electric field of metallic particles with less statistical dispersion than a dielectric coating.

引用

页码：27 / 35

页数：9

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