BEHAVIOR OF AC HIGH VOLTAGE POLYAMIDE INSULATORS: EVOLUTION OF LEAKAGE CURRENT IN DIFFERENT SURFACE CONDITIONS

被引：12

作者：

Slama, Mohammed El Amine ^{[1
]}

Beroual, Abderrahmane ^{[1
]}

机构：

[1] Univ Lyon, CNRS, Ecole Cent Lyon, AMPERE UMR 5005, 36 Ave Guy Collongue, F-69134 Ecully, France

来源：

ADVANCES IN ELECTRICAL AND ELECTRONIC ENGINEERING | 2015年 / 13卷 / 02期

关键词：

Dielectric; electrical arc; flashover; humidity; insulator; leakage current; partial discharges; pollution; polyamide;

D O I：

10.15598/aeee.v13i2.1145

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：

This paper is aimed at a systematic study of the leakage current of high voltage polyamide insulator string under different conditions of pollution for possible application in the electric locomotive systems. It is shown that in the case of clean/dry and clean/wetted insulators, the leakage current and applied voltage are linear. While in the case of pollution with saline spray, the leakage current and the applied voltage are not linear; the leakage current changes from a linear regime to a nonlinear regime up to total flashover of the insulators sting. Traces of erosion and tracking of insulators resulting of partial discharges are observed.

引用

页码：74 / 80

页数：7

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