Effects of Metal Deactivator Concentration upon the Gassing Characteristics of Transformer Oils

被引：25

作者：

Scatiggio, Fabio ^{[1
]}

Pompili, Massimo ^{[2
]}

Bartnikas, Ray ^{[3
]}

机构：

[1] TERNA SpA, I-30175 Venice, Italy

[2] Univ Roma La Sapienza, Dept Elect Engn, I-00184 Rome, Italy

[3] Inst Rech Hydro Quebec IREQ, Varennes, PQ, Canada

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2011年 / 18卷 / 03期

关键词：

Transformers; insulating liquids; gassing; LARGE POWER TRANSFORMERS; CORROSIVE SULFUR; STATIC ELECTRIFICATION; INSULATING OIL; SUPPRESSION; FAILURES;

D O I：

10.1109/TDEI.2011.5931055

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：

Recent years have witnessed a relatively large number of power transformer and shunt reactor failures, which were attributed to the presence of corrosive sulfur compounds in the insulating oils and their attending reactions with copper to form electrically conductive copper sulphides. The associated problems appeared to be initially resolved by the addition to the insulating oil small amounts of a metal deactivator (more commonly called passivator), a derivative of 1,2,3 benzotriazole (BTA). However, over the past four years, additional problems arose that were principally associated with the evolution of gases from the electrical insulating oils, containing the metal deactivator. These observations, recorded in the field as well as reproduced in laboratories, are examined in this paper.

引用

页码：701 / 706

页数：6

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