标题:Thermal decomposition mechanism of the insulation oil based on enthalpy analysis and severity evaluation of transformer thermal faults
作者:Zhang, Ying ;Wang, Xuelei ;Li, Qingmin ;Yang, Rui ;Li, Chengrong ;Gao, Shuguo ;Fan, Hui
作者机构:[Zhang, Y] College of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing, 102206, China;[ Wang, 更多
通讯作者:Zhang, Ying
来源:中国电机工程学报
出版年:2014
卷:34
期:33
页码:5956-5963
DOI:10.13334/j.0258-8013.pcsee.2014.33.020
关键词:Transformer oil;Enthalpy analysis;Energy-weighted;Thermal faults;Severity evaluation
摘要:The prevailing methodology used to identify the severity of transformer inner faults is based on the total gas concentration and its rate of change, without recurring to the energy of formation difference between gases. By means of enthalpy analysis, the thermal decomposition mechanism and thermal fault severity diagnosis criterion of transformer oil were studied in this paper. Based on the thermodynamic theory, C20H42 was selected as a model compound to study the decomposition mechanism of transformer oil, and the amount of individual gas with regard to different temperature was calculated. The energy of formation for each gas that can characterize the energy change during the reaction process was obtained, indicating the energy required to form the gases was in the order of: CH4
收录类别:EI;SCOPUS
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84916888961&doi=10.13334%2fj.0258-8013.pcsee.2014.33.020&partnerID=40&md5=9245f011487ad969eb514d256ffe95bd
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