Microscopic Mechanism Effect of Oxygen and Moisture on Pyrolysis of Transformer Insulating Paper

IF 2.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-10 DOI:10.1109/TDEI.2024.3456771

Haoxi Cong;Shaomin Quan;Xuefeng Hu;Xuan Zhang;Qingmin Li;Mingrong Xu

{"title":"Microscopic Mechanism Effect of Oxygen and Moisture on Pyrolysis of Transformer Insulating Paper","authors":"Haoxi Cong;Shaomin Quan;Xuefeng Hu;Xuan Zhang;Qingmin Li;Mingrong Xu","doi":"10.1109/TDEI.2024.3456771","DOIUrl":null,"url":null,"abstract":"Cellulose paper constitutes a crucial element of oil-paper insulation, crucially influencing the lifespan of transformers. Throughout its aging process, the cellulose paper generates moisture, while the insulating oil contains varying levels of oxygen. Understanding the aging mechanism of cellulose paper necessitates an exploration of the synergistic interplay between moisture and oxygen. This article establishes models incorporating varying moisture, oxygen, and cellobiose concentrations. Molecular dynamics simulations employing the reactive force field (ReaxFF) are employed to investigate the effects of moisture and oxygen addition on the decomposition of cellobiose. The mechanisms underlying the effects of moisture and oxygen on cellobiose decomposition are examined. The changes in the content of the major end products, including H2O, CO2, CO, HCHO, and HCOOH, are also analyzed. It is found that oxygen promotes the formation of C = O bonds and the production of free H from cellobiose. Moisture provides free H and promotes further reactions. The synergistic effect of moisture and oxygen accelerates the aging process of cellulose paper. This investigation provides theoretical support for further research into the aging mechanism of cellulose paper.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1008-1016"},"PeriodicalIF":2.9000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Dielectrics and Electrical Insulation","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10670705/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Cellulose paper constitutes a crucial element of oil-paper insulation, crucially influencing the lifespan of transformers. Throughout its aging process, the cellulose paper generates moisture, while the insulating oil contains varying levels of oxygen. Understanding the aging mechanism of cellulose paper necessitates an exploration of the synergistic interplay between moisture and oxygen. This article establishes models incorporating varying moisture, oxygen, and cellobiose concentrations. Molecular dynamics simulations employing the reactive force field (ReaxFF) are employed to investigate the effects of moisture and oxygen addition on the decomposition of cellobiose. The mechanisms underlying the effects of moisture and oxygen on cellobiose decomposition are examined. The changes in the content of the major end products, including H2O, CO2, CO, HCHO, and HCOOH, are also analyzed. It is found that oxygen promotes the formation of C = O bonds and the production of free H from cellobiose. Moisture provides free H and promotes further reactions. The synergistic effect of moisture and oxygen accelerates the aging process of cellulose paper. This investigation provides theoretical support for further research into the aging mechanism of cellulose paper.

查看原文本刊更多论文

氧气和水分对变压器绝缘纸热解的微观机理影响

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Dielectrics and Electrical Insulation 工程技术-工程：电子与电气

CiteScore

6.00

自引率

22.60%

发文量

309

审稿时长

5.2 months

期刊介绍： Topics that are concerned with dielectric phenomena and measurements, with development and characterization of gaseous, vacuum, liquid and solid electrical insulating materials and systems; and with utilization of these materials in circuits and systems under condition of use.