Fire Safety and Electrical Properties of Mixtures of Synthetic Ester/Mineral Oil and Synthetic Ester/Natural Ester

被引：50

作者：

Dombek, Grzegorz ^{[1
]}

Gielniak, Jaroslaw ^{[1
]}

机构：

[1] Poznan Univ Tech, Inst Elect Power Engn, Piotrowo 3a, PL-60965 Poznan, Poland

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2018年 / 25卷 / 05期

关键词：

power transformers; mixtures of different liquids; electrical properties of mixtures; fire safety; TRANSFORMERS;

D O I：

10.1109/TDEI.2018.007223

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：

The paper presents research results of different properties of mixtures of the synthetic ester with mineral oil and synthetic ester with natural ester. For different concentrations of both mixtures, the following properties were investigated: flash point (open and closed cup), fire point (open cup), net calorific value, breakdown voltage, relative permittivity, dissipation factor, conductivity and dissipation factor. In order to compare results, prepared mixtures and base liquids were carefully arranged under uniform climatic conditions. This meant that the prepared samples had the same relative humidity. The obtained results were compared with the results of the base liquids. In addition, results of the investigation were analyzed in terms of fire safety and changes of electrical properties, in the context of the use of synthetic ester/mineral oil and synthetic ester/natural ester mixtures as insulation liquids in power transformers.

引用

页码：1846 / 1852

页数：7

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