Factors affecting the dissolution of copper in transformer oils

被引：31

作者：

Kalantar, A. ^{[1
]}

Levin, M. ^{[1
]}

机构：

[1] AB Nynas Petr, Naphthen Res, SE-14982 Oljeraffinaderiet, Nynashamn, Sweden

来源：

LUBRICATION SCIENCE | 2008年 / 20卷 / 03期

关键词：

transformer oil; copper; dissolution; corrosion; oil oxidation;

D O I：

10.1002/ls.63

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of addition of acids, peroxides and model N-containing compounds to the oils on the rate of the copper dissolution from a copper strip into the oils was studied. The oils used were poly-alpha-olefin 2 (PAO-2) and a highly refined naphthenic oil. Acids and peroxides were found to increase the copper dissolution into the oil, whereas the model nitrogen-containing compounds exhibited a surface passivatory effect. The presence of the oil's partial oxidation products was found to increase the dissolution of the copper into the oil. The reasons for these observations are discussed. The relative contribution of the electrochemical and chemical processes to the copper corrosion is discussed. Copyright (C) 2008 John Wiley & Sons, Ltd.

引用

页码：223 / 240

页数：18

共 26 条

[1]

*ASTM, 2006, ANN BOOK ASTM STAN 5, V501

[2]

BASSETTO FA, 1993, CIGRE P 34 SESS, P2762

[3] The transport of copper through oil-impregnated paper insulation in electrical current transformers and bushings [J].

Castle, JE ;

Whitfield, TB ;

Ali, M .

IEEE ELECTRICAL INSULATION MAGAZINE, 2003, 19 (01) :25-29

[4]

Denisov E.T., 2005, OXIDATION ANTIOXIDAN, P137

[5] Study of fuel insolubles: Formation conditions and characterization of copper compounds [J].

Doyle, A. ;

Tristao, M. L. B. ;

Felcman, J. .

FUEL, 2006, 85 (14-15) :2195-2201

[6]

DUVAL M, 15120111 CIGRE TF

[7]

Emanuel NM., 1967, LIQUID PHASE OXIDATI

[8]

HAZLETT RN, 1991, THERMAL OXIDATION ST, pCH2

[9]

*IEC, 1992, IEC1125, V8

[10]

Ingebrigtsen S, 2004, 2004 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, P253

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