The Influence of Organic Acid on Thermal Aging of Power Transformer Oil-paper Insulation

被引：0
|
作者：
Cui Yunguang [1 ]
Wu Guangning [1 ]
Wang Xiaojian [1 ]
Peng Qian [2 ]
Chen Ling [1 ,2 ]
Gao Bo [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Elect Engn, Chengdu 610031, Sichuan, Peoples R China
[2] Sichuan Elect Power Res Inst, Chengdu 610072, Sichuan, Peoples R China
来源：
2013 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (CEIDP) | 2013年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To research the influence of one of the aging product (organic acid) of cellulose on oil-paper insulation, low molecular weight of the carboxylic acid (formic, acetic) and high molecular weight of the carboxylic acid (steatic) have been added to new electric insulating oil to arrive at a neutralization value of 0.3mgKOH/g, the initial moisture content in insulation paper have been controlled at 0.5u/0 and 2.75%. The distribution characters of organic acid in oil-paper insulation and the influence of organic acid on thermal aging of oil-paper insulation at 70 degrees C 90 degrees C and 110 degrees C have been investigated. Experimental results show that formic and acetic could be easily absorbed by insulation paper while stearic could easily dissolve in electric insulating oil. There is no significant influence of temperature and initial moisture content on the distribution characters of organic acid in oil-paper insulation. Low molecular acid would work together with moisture to accelerate the aging speed of insulation paper.
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页码：116 / 119
页数：4
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