化学反应动力学预测油纸绝缘变压器老化寿命  

Application of Kinetics of Chemical Reaction in Aging Lifetime Evaluation of Oil-paper Insulated Transformers

作　　者：魏建林[1] 张冠军[1] 董明[1] 王世强[1] 严璋[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《高电压技术》2009年第3期544-550,共7页High Voltage Engineering

基　　金：国家高技术研究发展计划(863)(2007AA04Z411);新世纪优秀人才支持计划(NCET-04-0943)~~

摘　　要：鉴于电力变压器的绝缘对其安全运行起着至关重要的作用,针对油纸绝缘变压器的老化问题,国内外研究者以绝缘纸老化化学反应为基础,以其纤维素的平均聚合度(DP)为特征量,采用化学反应动力学预测变压器老化剩余寿命,该研究已取得一定进展。为深入该项技术的研究,在概述变压器绝缘纸中纤维素的结构特点、降解方式以及化学反应动力学的相关内容后,总结了几个有代表性的绝缘纸老化动力学模型及其相应的验证试验,并结合这些模型,探讨了今后的研究方向。The insulation of power transformer plays a vital role in its safe operation. On the basis of the aging chemical reaction of insulating paper, by characterizing the degree of polymerization （DP） of cellulose paper, the kinetics of chemical reaction is employed to evaluate the aging lifetime of power transformers, and have been achieved some progresses. We also review the cellulose structure of transformer insulating paper and its degradation manners. Moreover, the issues is related to the kinetics of chemical reaction. Some representative kinetic aging models of insulating paper and corresponding proof tests are summarized in detail, and the future research work is discussed on the basis of these kinetic models.

关 键 词：变压器 老化 寿命预测 纤维素 聚合度 化学反应动力学 

分 类 号：TM855[电气工程—高电压与绝缘技术]