EFFECT OF ANTIOXIDANTS AND METAL DEACTIVATOR ON THE OXIDATION OF TRANSFORMER OIL

被引：12

作者：

KRISHNAMOORTHY, PR

VIJAYAKUMARI, S

SANKARALINGAM, S

机构：

[1] Materials Technology Division, Central Power Research Institute, Bangalore

来源：

IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1992年 / 27卷 / 02期

关键词：

D O I：

10.1109/14.135598

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：

Comparative experimental data on the effectiveness of selected antioxidants and a metal deactivator in inhibiting the accelerated oxidation of reclaimed transformer oil are generated using the bomb oxidation apparatus. Energy of activation involved in the oxidation of uninhibited and inhibited oils deduced from the analysis of data are reported. Estimated lives of uninhibited and inhibited oils at the operating temperatures of transformers are also reported. Due to the difference in activation energies of inhibited oils, comparative assessment of inhibitors at a single temperature in the bomb oxidation apparatus as per standard appears to be insufficient. Among the range of antioxidants viz., monomeric and polymeric phenolic and aminic antioxidants chosen for study, the grading of only monomeric phenolic antioxidants seems to be consistent with temperature.

引用

页码：271 / 277

页数：7