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Electrical Insulating Mineral Oils: Specifications and Products
2000This paper provides a review of two specifications for electrical insulating mineral oils by ASTM and the International Electrotechnical Commission (IEC). The physical, electrical, and chemical properties of these fluids are specified for use in electric apparatus such as transformers.
PJ Griffin, TO Rouse, JJ Kelly
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Research on streaming electrification of insulation mineral oil
2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, 2009As we know, streaming electrification due to oil flow is an important phenomenon in power transformers particularly on those high rated voltage ones, and the study around it is still a challenge. In this paper, the streaming electrification characteristic of insulation mineral oil from Nynas was studied by using an improved mini-static tester to ...
null Shuangzan Ren +10 more
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C60 as flow electrification inhibitor in mineral insulating oil
Journal of Electrostatics, 2011Abstract The paper presents the concept of using C 60 fullerenes as streaming electrification process inhibitor in mineral insulating oil. For the research, 20 samples of oil were prepared; one pure and 19 containing from 1 mg/l to 512 mg/l of C 60 .
P. Aksamit, D. Zmarzły
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Mineral Insulating Oil Manufacture and Safekeeping
1988This paper presents a general overview of the methods used to refine conventional mineral insulating oils. The discussion will outline the individual refining processes and the effect each may have on the composition of the oil. Included will be a brief discussion of the Occupational Safety and Health Administration's Hazard Communication Standard, 29 ...
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Mineral Insulating Oils; Functional Requirements, Specifications and Production
Conference Record of the 2006 IEEE International Symposium on Electrical Insulation, 2006This paper describes how requirements on transformer oil are reflected by different specified physical and chemical parameters of oil. Impulse breakdown is not included in many specifications but ASTMD3487 does have it. Breakdown behaviour with DC impulses and a heterogeneous gap is very different from the AC breakdown strength.
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Time-dynamic oxidation stability studies of mineral insulating oils
2011 IEEE International Conference on Dielectric Liquids, 2011IEC 61125C, a traditional oxygen-rich material test for determination of oxidation stability of insulating oils, was modified to give continuous data over the entire testing time by application of a logging pH-meter. A complementary oxygen-poor testing method, which may be more relevant to certain power transformer designs, was also developed further ...
Per Wiklund, Chatleen Karlsson
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Review of recent changes to mineral insulating oil specifications
2009 IEEE Electrical Insulation Conference, 2009In the past few years the major transformer oil specifications used in North America and Europe have undergone a number of changes. These changes have been in response to specific issues such as corrosive sulphur, changes in oil quality levels and the needs of new large transformers to ensure long, trouble free service life for valuable assets.
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Ageing analysis of mineral insulating oils using CCTO Nanofluids
2015 International Conference on Energy, Power and Environment: Towards Sustainable Growth (ICEPE), 2015Power Transformers are one of the most critical component of power system in which mineral oil is used for both insulation and cooling purposes. It acts a insulating medium between solid insulations like kraft paper, pressboard etc. In transformer, dielectric strength of insulation materials mainly depends on the properties of the transformer oil.
R. T. Arun Ram Prasath +4 more
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Compatibility of mineral insulating oil with transformer construction materials
2017 IEEE 19th International Conference on Dielectric Liquids (ICDL), 2017This study is focused on the determining the compatibility of mineral insulating oil with various transformer materials obtained from transformer manufacturers. For this study, traditional chemical methods, in accordance with the requirements of the IEC 60422 standard (See Table 3), were applied.
Natasa Bernard, Biljana Cucek
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