New synthetic ester fluid for the insulation of liquid immersed transformers

Conference Record of the 2006 IEEE International Symposium on Electrical Insulation Pub Date : 2006-06-11 DOI:10.1109/ELINSL.2006.1665374

B. Dolata, H. Borsi, E. Gockenbach

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引用次数: 10

Abstract

As mineral insulating oils as one of the key components of the insulation comprise several risks concerning aging, fire resistance and ecology, the use of ester liquids becomes increasingly attractive, moreover as the price of mineral oil based products continuously escalates. In this contribution a new ester insulating liquid is introduced, that combines the advantages of mineral insulating oils and ecological friendly, low viscosity synthetic liquids. Insulating liquids of mostly synthetic origin like high molecular weight hydrocarbons or silicone oils could so far not substitute mineral oils as their application characteristics are inferior or their price is disproportionate. In Europe only ester liquids, namely Midel 7131, have proven their advantageousness for transformers regarding environmental and aging aspects. The newly developed ester liquid, especially because of its low viscosity is a very promising liquid for use in transformers as cooling and insulation liquid. This contribution presents some experiments on the electrical, dielectrical, chemical and environmental characteristics of this liquid, which have been performed to approve the usability of this liquid for transformers

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液浸式变压器绝缘用新型合成酯液

由于矿物绝缘油作为绝缘材料的关键成分之一，存在着老化、耐火和生态等方面的风险，随着矿物油基产品价格的不断上涨，酯类液体的使用越来越有吸引力。本文介绍了一种结合矿物绝缘油和生态友好、低粘度合成液体优点的新型酯类绝缘液。绝缘液体主要是合成的，如高分子量碳氢化合物或硅油，到目前为止还不能替代矿物油，因为它们的应用特性较差或价格不成比例。在欧洲，只有酯液体，即middel 7131，已经证明了它们在变压器环境和老化方面的优势。新开发的酯类液体由于其低粘度的特点，是一种很有前途的变压器冷却和绝缘液体。这篇文章介绍了一些关于这种液体的电学、介电学、化学和环境特性的实验，这些实验已经完成，以批准这种液体用于变压器的可用性

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the 2006 IEEE International Symposium on Electrical Insulation

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