Transformer failures in regions incorrectly considered to have low GIC-risk

被引：134

作者：

Gaunt, C. T. ^{[1
]}

Coetzee, G. ^{[2
]}

机构：

[1] Univ Cape Town, Dept Elect Engn, Pvt Bag, ZA-7701 Rondebosch, South Africa

[2] Eskom Generat, Rondebosch, South Africa

来源：

2007 IEEE LAUSANNE POWERTECH, VOLS 1-5 | 2007年

基金：

新加坡国家研究基金会;

关键词：

power transformers; failure analysis; geomagnetically induced currents;

D O I：

10.1109/PCT.2007.4538419

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：

A close association has been identified between the theoretical calculation of geomagnetically induced currents (GICs) in a large network practical measurements of GICs, the results of dissolved gas analysis (DGA) records, and damage in recently failed transformers in Southern Africa. Together these indicate that GICs may contribute significantly to transformer failures on large transmission systems in mid-latitude regions, where GICs are generally thought not to be significant.

引用

页码：807 / +

页数：2

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