Effect of Copper on Ageing Behavior and Breakdown Voltage Properties of Transformer Oil

被引：0
|
作者：
Somasekharan Pillai, Ajumon [1 ]
Linsely, J. Arul [2 ]
机构：
[1] Noorul Islam Univ, Dept Elect Engn, Thuckalay, Tamil Nadu, India
[2] Noorul Islam Ctr Higher Educ, Dept Elect & Elect Engn, Kanyakumari, Tamil Nadu, India
来源：
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS | 2021年 / 22卷 / 04期
关键词：
Breakdown strength; Ageing process; Copper; Insulating oils; ELECTRICAL-PROPERTIES; AGED DODECYLBENZENE; MIXED ISOMERS;
D O I：
10.1007/s42341-020-00249-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, the "Breakdown Strength" of ester base liquid MIDEL 7131(MIDEL Ltd), Mineral Transformer oil (Grosvenor Oil Service), Diala D (Shell Ltd) and THESO insulating oil (Tetra Corp) that are subjected to three different ageing conditions is examined. The breakdown strength of thermally aged insulating oils with copper and without copper has also been tested. Therefore the effect of copper as a catalyst in ageing of insulating liquids was also examined. After analyzing the effect of copper on ageing indicated that, copper had a huge influence on darkening all the insulating oils except MIDEL 7131 and thereby accelerating the ageing process. The breakdown mechanism of oils has changed due to ageing with copper. In this paper, breakdown comparison of transformer oils are analyzed with different insulating oils like un-aged and aged. Transformer oils breakdown voltage test under 0.9 mm gap spacing and the average breakdown voltage behaviour, field behaviour, maximum field at the needle tip transformer oils are also investigated.
引用
收藏
页码：439 / 451
页数：13
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