Surge Current Withstand Capability of Natural Ester Oil: A Comparison to Gas-to-Liquid Transformer Oil

被引：0
|
作者：
Tsovilis, Thomas [1 ]
Hadjicostas, Alexandros Y. [1 ]
Staikos, Evangelos T. [1 ]
Datsios, Zacharias G. [1 ]
Peppas, Georgios D. [2 ]
机构：
[1] Aristotle Univ Thessaloniki, Sch Elect & Comp Engn, High Voltage Lab, Thessaloniki 54124, Greece
[2] Tech Univ Crete, Sch Elect & Comp Engn, Khania 73100, Greece
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2024年 / 60卷 / 06期
关键词：
Oils; Surges; Dielectrics; Degradation; Permittivity; Liquids; Dielectric liquids; dielectric strength; electrical conductivity; impulse current; nanofluids; surge endurance; THERMAL-PROPERTIES; NANOFLUIDS; BREAKDOWN;
D O I：
10.1109/TIA.2024.3454232
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The basic electrical characteristics of a natural ester oil are experimentally investigated and compared to gas-to-liquid transformer oil with emphasis given to the endurance against surge events. An accelerated degradation test is conducted using a sequence of current impulses generated through a combination wave generator. This test is employed to investigate changes in the electrical conductivity of the oil, serving as a crucial performance indicator for assessing its surge current withstand capability. Experimental results on the surge degradation of the natural ester oil are compared to those of gas-to-liquid oil, which is commonly used in power transformers. A discussion is made on the possible use of natural ester oils as a liquid matrix for environmentally friendly surge-proof nanofluids to substitute transformer oils, which are commonly employed as insulating liquids and coolants in the power industry.
引用
收藏
页码：8362 / 8370
页数：9
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