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首页> 外文会议>2016 IEEE International Conference on High Voltage Engineering and Application >Effect of small molecule acid on moisture equilibrium for oil-pressboard in transformer
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Effect of small molecule acid on moisture equilibrium for oil-pressboard in transformer

机译：小分子酸对变压器油压板水分平衡的影响

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摘要

The test results show the moisture equilibrium between transformer oil and pressboard has changed in aged condition. The mechanism of the phenomenon is not clear. The increase of small molecule acid in pressboard is one of the possible causes. Research the effect of small molecule acid on moisture equilibrium for oil-pressboard helps to explain the phenomenon. In this paper, various aged transformer pressboard samples from un-aged to 40 years old were prepared by accelerated thermal aging method at 130 centigrade degree. Moisture equilibrium tests of paper samples with and without small molecule acid immersed in un-aged oil were carried out under the conditions of 80 centigrade degree, 60% relative humidity of air atmosphere. The results showed that the effect of small molecule acids increases with the deepening of aging. The effect of small molecule acid on moisture adsorption of 40-year-aged paper was 16.6%, 9 times of un-aged paper.
机译：测试结果表明，变压器油和压板之间的水分平衡在老化条件下发生了变化。现象的机理尚不清楚。压纸板中小分子酸的增加是可能的原因之一。研究小分子酸对压油板水分平衡的影响有助于解释这一现象。本文采用加速热老化法在130℃的温度下制备了各种未老化到40岁的老化变压器板样品。在80℃，空气相对湿度为60％的条件下，对有或没有将小分子酸浸在未老化的油中的纸样品进行了水分平衡测试。结果表明，随着年龄的增长，小分子酸的作用增强。小分子酸对40年老化纸的水分吸收的影响为16.6％，是未老化纸的9倍。

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  • 来源
  • 会议地点 Chengdu(CN)
  • 作者

    Wei Wang; Yuhang Wang; Xiaoyu Yan; Fangyi Li; Lin Wang; Chengrong Li; Huaying Bai;

  • 作者单位

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

    Beijing key laboratory of high voltage and EMC, North China electric power university, Beijing, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Moisture; Aging; Oil insulation; Power transformer insulation; Oils; Adsorption;

    机译：水分；老化；油绝缘；电力变压器绝缘；油；吸附;

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