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首页> 外文期刊>Electric power systems research >Investigating the influence of moisture on the 2FAL generation rate of transformers: A new model to estimate the DP of cellulosic insulation
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Investigating the influence of moisture on the 2FAL generation rate of transformers: A new model to estimate the DP of cellulosic insulation

机译：研究水分对变压器2FAL发电率的影响：估算纤维素绝缘体DP的新模型

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The analysis of the concentration of furanic compounds in oil has been accepted as one of the most reliable methods to obtain information about the condition of the transformer's cellulosic insulation. In this paper, the relation between the moisture content of the paper and the rate of generation of 2-furfuraldehidyde (2FAL) is studied. A statistical study is carried out to determine if transformers with higher moisture contents in oil tend to present higher contents of 2FAL, and, to this end, a database with more than 20,000 historical records of transformers is utilized. This study is completed with a set of accelerated ageing tests of transformer cellulosic insulation pieces, conditioned with different moisture contents. The impact of the moisture content of paper on the relation between the degree of polymerization (DP) and the 2FAL concentration is determined, and a correction factor has been proposed to include this variable in a model. (C) 2016 Elsevier B.V. All rights reserved.
机译：分析油中呋喃化合物的浓度已被视为获得有关变压器纤维素绝缘状况的信息的最可靠方法之一。本文研究了纸张的水分含量与2-糠醛（2FAL）生成速率之间的关系。进行了一项统计研究，以确定油中水分含量较高的变压器是否趋向于呈现较高的2FAL含量，为此，使用了具有20,000多个变压器历史记录的数据库。这项研究是通过对不同水分含量的变压器纤维素绝缘件进行一组加速老化测试而完成的。确定了纸张的水分含量对聚合度（DP）和2FAL浓度之间关系的影响，并提出了将这个变量包括在模型中的校正因子。 （C）2016 Elsevier B.V.保留所有权利。

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