Application of Furfural Content Analysis to Diagnosis of Solid Insulation Ageing in Power Transformers

SHEN Yi-pin; ZHENG De-fu

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Application of Furfural Content Analysis to Diagnosis of Solid Insulation Ageing in Power Transformers

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- Application of Furfural Content Analysis to Diagnosis of Solid Insulation Ageing in Power Transformers
- High VoltageApparatus Issue 1, Pages: 84-86(2008)
- 作者机构：
  
  1. 浙江省台州电业局
  2. 浙江省台州电业局浙江临海31700
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM41
- Published：2008
- 稿件说明：
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[1]沈一平,郑德富.糠醛浓度分析在电力变压器固体绝缘老化诊断中的应用[J].高压电器,2008(01):84-86.

SHEN Yi-pin, ZHENG De-fu. Application of Furfural Content Analysis to Diagnosis of Solid Insulation Ageing in Power Transformers[J]. High voltageapparatus, 2008, (1): 84-86.
[1]沈一平,郑德富.糠醛浓度分析在电力变压器固体绝缘老化诊断中的应用[J].高压电器,2008(01):84-86. DOI：

SHEN Yi-pin, ZHENG De-fu. Application of Furfural Content Analysis to Diagnosis of Solid Insulation Ageing in Power Transformers[J]. High voltageapparatus, 2008, (1): 84-86. DOI：

摘要

通过对基于固体绝缘老化诊断方法的对比

得出检测电力变压器油中糠醛浓度是评价固体绝缘老化状态的有效方法之一。在建立数学模型后

根据50台主变压器糠醛浓度的检测值

对其对数值与运行年限进行线性回归分析

确认了置信概率为99%的糠醛浓度的对数值的线性区间

从而有助于判断电力变压器固体绝缘的老化程度

这对实施变压器的状态检修有一定的指导作用。

Abstract

Comparing the methods of ageing diagnosis of solid insulation

it was found that measuring the furfural content in transformer oil is an effective method for evaluating the state of solid insulation ageing.After building a mathematical model

linear regression analysis was conducted for the logarithmic furfural content versus operating year based on the measured data of furfural contents in 50 main power transformers.The linear range of the logarithmic furfural content was determined with a fiducial probability of 99%.Consequently

the ageing degree of solid insulation in power transformer can be judged.

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