Corrosive Sulfur Effects in Transformer Oils and Remedial Procedures

被引：78

作者：

Maina, R. ^{[1
]}

Tumiatti, V. ^{[1
]}

Pompili, M. ^{[2
]}

Bartnikas, R. ^{[3
]}

机构：

[1] Sea Marconi Technol SAS, I-10093 Collegno, TO, Italy

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

[3] Inst Rech Hydro Quebec, Varennes, PQ J3X 1S1, Canada

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2009年 / 16卷 / 06期

关键词：

Corrosive sulfur; transformer failures; mineral oils; corrosion mechanism; dielectric losses; corrosive sulfur mitigation; FAILURES;

D O I：

10.1109/TDEI.2009.5361586

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：

The behavior of corrosive sulfur in mineral oils is examined in terms of the failures observed in transformers, the surfaces of the copper sulfide covered conductors and degraded paper insulating tapes. The role of Dissolved Gas Analysis (DGA) in the evaluation of the risk of copper sulfide formation is described. The degree of corrosiveness of some sulfur compounds is examined and compared using a Kraft paper wrapped-copper test (Standard IEC 62535). The occurrence of DBDS as the most relevant corrosive compound is compared with the presence of other corrosive species in insulating mineral oils. A number of mitigation techniques for corrosive sulfur are described and evaluated.

引用

页码：1655 / 1663

页数：9

共 14 条

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