Studies on the Influence of Copper and Insulation Paper on the Accelerated Thermal Ageing of Some Insulating Fluids

被引：0

作者：

Lingvay, Iosif ^{[1
]}

Oprina, Gabriela ^{[1
]}

Stanoi, Valerica ^{[2
]}

Pica, Alexandra ^{[3
]}

Ungureanu, Livia Carmen ^{[2
]}

Serban, Florentina ^{[3
]}

机构：

[1] Natl Inst Res & Dev Elect Engn INCDIE ICPE CA Buc, 313 Splaiul Unirii, Bucharest 030138, Romania

[2] Natl Inst Res Dev & Testing Elect Engn, 118A Decebal Blvd, Craiova 200746, Romania

[3] Res Inst Adv Coatings, 313 Splaiul Unirii, Bucharest 030138, Romania

来源：

REVISTA DE CHIMIE | 2017年 / 68卷 / 11期

关键词：

transformer oil; mineral oil; ester oil; thermal ageing; insulation paper;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The behaviour of some insulating fluids in contact with copper foil and/or insulation paper under thermal stress (110 +/- 3 degrees C for 1000 hours), in a closed system (the access of atmospheric oxygen being limited), has been studied by determining the changes in viscosity and concentration of CO2 and CO. The experimental data revealed that, following the applied heat treatment, the change in viscosity of the esters-based insulating fluids (both synthetic and vegetable) is approximately 7 times lower than in the case of the investigated mineral oils. It has also been found that, following the thermal ageing, the gas content of the mineral oils is substantially higher than in the esters-based oils (8 times higher for CO2 and 4 times higher for CO, respectively). The experimental results indicate superior values for the thermal stability and compatibility with the insulation paper of ester-based insulating fluids.

引用

页码：2551 / 2555

页数：5

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