Novel characteristic products of paper insulation aging assessment for oil-immersed power transformer

ZHENG Hanbo; ZHANG Yiyi; LIU Jiefeng; FANG Jiake

doi:10.16081/j.issn.1006-6047.2018.10.023

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Novel characteristic products of paper insulation aging assessment for oil-immersed power transformer

更新时间：2025-04-25

- Novel characteristic products of paper insulation aging assessment for oil-immersed power transformer
- Vol. 38, Issue 10, Pages: 147-152(2018)
- 作者机构：
  
  1. 广西大学广西电力系统最优化与节能技术重点实验室
  2. 国网河南省电力公司电力科学研究院
  3. 国网河北省电力公司石家庄供电分公司
- 作者简介：
- 基金信息：
- DOI：10.16081/j.issn.1006-6047.2018.10.023
  CLC： TM411
- Published：2018
- 稿件说明：
移动端阅览
[1]郑含博,张镱议,刘捷丰,房加珂.一种油浸式电力变压器纸绝缘老化评估新特征量[J].电力自动化设备,2018,38(10):147-152.

ZHENG Hanbo, ZHANG Yiyi, LIU Jiefeng, et al. Novel characteristic products of paper insulation aging assessment for oil-immersed power transformer[J]. 2018, 38(10): 147-152.
[1]郑含博,张镱议,刘捷丰,房加珂.一种油浸式电力变压器纸绝缘老化评估新特征量[J].电力自动化设备,2018,38(10):147-152. DOI： 10.16081/j.issn.1006-6047.2018.10.023.

ZHENG Hanbo, ZHANG Yiyi, LIU Jiefeng, et al. Novel characteristic products of paper insulation aging assessment for oil-immersed power transformer[J]. 2018, 38(10): 147-152. DOI： 10.16081/j.issn.1006-6047.2018.10.023.

摘要

针对油中糠醛含量随变压器运行时间变化的分散性较大

难以准确评估油浸式变压器纸绝缘老化状态的不足

对甲醇、乙醇等低分子醇作为变压器纸绝缘老化评估新特征量进行了理论分析与实验研究。对绝缘纸的老化机理以及化学键断裂进行分析

从理论上探究甲醇、乙醇等低分子醇的产生原理及主要生成途径。采用气相色谱-质谱联用法对现场2台老旧变压器绝缘油样品中的甲醇、乙醇及糠醛含量进行了测定。实验结果表明

2组样品中均未检测到糠醛

但却检测到数量可观的乙醇。进一步地

对现场2台刚投运变压器的检测结果对比分析

分析结果揭示了乙醇可以作为一种有效表征变压器绝缘纸老化的新特征量

且比糠醛特征量相比更为有效。

Abstract

The furfural content in oil may dispersedly change along with the operating time of transformer

which makes it difficult to evaluate the paper insulation aging status of oil-immersed transformers. To overcome this shortage

the methanol

ethanol and other low molecular alcohols are theoretically analyzed and experimentally verified as new characteristic products of paper insulation aging evaluation. The generation principles and ways of low molecular alcohols such as methanol and ethanol are theoretically explored by analyzing the aging mechanism of insulating paper and the order of chemical bond breaking. The content of furfural

methanol and ethanol in two groups of insulating oil samples obtained from two old transformers are measured by gas chromatography-mass spectrometry. The experimental results show that no furfural but a considerable amount of ethanol is detected in the two groups of samples. Moreover

the detecting results of the two transformers newly put into operation are compared

the results show that compared with furfural

ethanol can be used as a more effective characteristic product to present the aging of transformer insulation paper.

关键词

Keywords

references

Views

332

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Three dimensional simulation technology of separated cooling type transformer based on finite volume method

Related Author

WEI Bengang

WU Nannan

REN Xiaoming

DAI Mingqiu

Related Institution

Electric Power Research Institute,SGEPC

Shanghai SEPRI Power Technology Co.,Ltd.

Shanghai College of Electrical Engineering

Shanghai Jiao Tong University

AI问答

⁰