换油对变压器油中糠醛含量和绝缘纸老化评估的影响及修正

doi:10.19595/j.cnki.1000-6753.tces.151796

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Abstract In order to investigate the changing of furfural content in insulating oil after oil replacement and its effects on insulation paper aging assessment, accelerated thermal aging test of oil-paper insulation samples was conducted at 130℃ in the laboratory. The aged insulating oil was replaced at the early, middle and late aging stages respectively, and the furfural content in oil was compared. The results showed that the furfural content greatly declined after oil replacement. The difference of furfural content in oil before and after oil replacement decreased with aging. If oil replacement was neglected, the aging assessment of paper will cause over-estimation, especially at the early stage after oil replacement. Furfural modification function was defined as the ratio of furfural in oil at the same time point before and after oil replacement. The changing rules of furfural modification function were studied and used to correct the furfural content. It was shown that the modification function could effectively improve the aging assessment results. The furfural modification function was generalized to operation temperature, which can correct the furfural content of in-service transformers.

Key words： Transformer oil-paper insulation aging assessment furfural analysis oil replacement

Received: 30 October 2015 Published: 19 July 2017

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	Lin Yuandi
	Liao Ruijin
	Zhang Yiyi
	Liu Haibin

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Lin Yuandi,Liao Ruijin,Zhang Yiyi等. Effects and Corrections of Oil Replacement upon Furfural Content in Insulating Oil and Aging Assessment of Insulation Paper of Power Transformers[J]. Transactions of China Electrotechnical Society, 2017, 32(13): 255-263.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.151796 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I13/255

[1] 廖瑞金, 王季宇, 袁媛, 等. 换流变压器下新型纤维素绝缘纸特性综述[J]. 电工技术学报, 2016, 31(10): 1-15.
Liao Ruijin, Wang Jiyu, Yuan Yuan, et al. Review on the characteristic of new cellulose insulation paper used in the converter transformer[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 1-15.
[2] 陈伟根, 滕黎, 刘军, 等. 基于遗传优化支持向量机的变压器绕组热点温度预测模型[J]. 电工技术学报, 2014, 29(1): 44-51.
Chen Weigen, Teng Li, Liu Jun, et al. Transformer winding hot-spot temperature prediction model of support vector machine optimized by genetic algo- rithm[J]. Transactions of China Electrotechnical Society, 2014, 29(1): 44-51.
[3] 杨丽君, 徐积全, 胡恩德, 等. 变压器油中腐蚀性硫浓度对绕组绝缘电气性能的影响[J]. 电工技术学报, 2016, 31(10): 42-48.
Yang Lijun, Xu Jiquan, Hu Ende, et al. The influence of corrosive sulfur concentration in transformer oil to the electrical properties of insulated windings[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 42-48.
[4] 杨丽君, 廖瑞金, 孙会刚, 等. 油纸绝缘热老化特性及生成物的对比分析[J]. 中国电机工程学报, 2008, 28(22): 53-58.
Yang Lijun, Liao Ruijin, Sun Huigang, et al. Con- trasting analysis and investigation on properties and products of oil-paper during thermal aging process[J]. Proceedings of the CSEE, 2008, 28(22): 53-58.
[5] 廖瑞金, 冯运, 杨丽君, 等. 油纸绝缘老化特征产物生成速率研究[J]. 中国电机工程学报, 2008, 28(10): 142-147.
Liao Ruijin, Feng Yun, Yang Lijun, et al. Study on generation rate of characteristic products of oil-paper insulation aging[J]. Proceedings of the CSEE, 2008, 28(10): 142-147.
[6] 廖瑞金, 梁帅伟, 周天春, 等. 天然酯-纸绝缘热老化速度减缓及其原因分析[J]. 电工技术学报, 2008, 23(9): 32-37.
Liao Ruijin, Liang Shuaiwei, Zhou Tianchun, et al. Comparison for the mineral oil-paper and the nature ester-paper insulation degradation and cause analysis[J]. Transactions of China Electrotechnical Society, 2008, 23(9): 32-37.
[7] 唐超, 张松, 张福州, 等. 变压器绝缘纸纤维素耐热老化性能提升的模拟及试验[J]. 电工技术学报, 2016, 31(10): 68-76.
Tang Chao, Zhang Song, Zhang Fuzhou, et al. Simulation and experimental about the thermal aging performance improvement of cellulose insulation paper[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 68-76.
[8] 梁帅伟, 廖瑞金, 郝建, 等. 一种抗老化绝缘油对绝缘纸热老化影响及原因分析[J]. 电工技术学报, 2012, 27(5): 21-25.
Liang Shuaiwei, Liao Ruijin, Hao Jian, et al. Effects on oil-immersed paper for an antioxidation insulation oil and cause analysis[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 21-25.
[9] 张镱议, 廖瑞金, 杨丽君, 等. 基于云理论的电力变压器绝缘状态评估方法[J]. 电工技术学报, 2012, 27(5): 13-20.
Zhang Yiyi, Liao Ruijin, Yang Lijun, et al. An assessment method for insulation condition of power transformer based upon cloud model[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 13-20.
[10] Wang M, Vandermaar A J, Srivastava K D. Review of condition assessment of power transformers in service[J]. IEEE Electrical Insulation Magazine, 2002, 18(6): 12-25.
[11] Oommen T V, Prevost T. Cellulose insulation in oil-filled power transformers. Part II: maintaining insulation integrity and life[J]. IEEE Electrical Insulation Magazine, 2006, 22(2): 5-14.
[12] Höhlein I, Kachler A J. Aging of cellulose at transformer service temperatures, part 2: influence of moisture and temperature on degree of poly- merization and formation of furanic compounds in free-breathing systems[J]. IEEE Electrical Insulation Magazine, 2005, 21(5): 20-24.
[13] Cheim L, Platts D, Prevost T, et al. Furan analysis for liquid power transformers[J]. IEEE Electrical Insu- lation Magazine, 2012, 28(2): 8-21.
[14] Emsley A M, Xiao X, Heywood R J, et al. Degradation of cellulosic insulation in power trans- formers, part 2: formation of furan products in insulating oil[J]. IEE Proceedings-Science Measure- ment and Technology, 2000, 147(3): 110-114.
[15] Feng D, Wang Z, Jarman P. Transmission power transformer assessment using furan measurement with the aid of thermal model[C]//IEEE International Conference on Condition Monitoring and Diagnosis, Bali, Indonesia, 2012: 521-524.
[16] Shang Y, Yang L, Guo Z, et al. Assessing aging of large transformers by furfural investigation[C]//IEEE 7th International Conference on Solid Dielectrics, Eindhoven, Netherlands, 2001: 272-274.
[17] MacAlpine J M K, 张潮海. 糠醛浓度判断变压器绝缘纸寿命的综述[J]. 高电压技术, 2001, 27(4): 63-67.
MacAlpine J M K, Zhang Chaohai. Study on the paper ageing in transformer oil using furfural concentration[J]. High Voltage Engineering, 2001, 27(4): 63-67.
[18] MacAlpine J M K, 张潮海. 糠醛浓度判断变压器绝缘纸寿命的现场测量[J]. 高电压技术, 2001, 27(6): 46-50.
MacAlpine J M K, Zhang Chaohai. Study on the paper ageing in transformer oil using furfural con- centration as indication[J]. High Voltage Engineering, 2001, 27(6): 46-50.
[19] Lewand L R. Practical experience gained from furanic compound analysis[C]//The Seventy-Third Annual International Doble Client Conference, MA, USA, 2006.
[20] Lelekakis N, Guo W, Martin D, et al. A field study of aging in paper-oil insulation systems[J]. IEEE Electrical Insulation Magazine, 2012, 28(1): 12-19.
[21] Liao R, Lin Y, Guo P, et al. The Effects of insulating oil replacement upon power transformer condition assessment[J]. Electric Power Components and Systems, 2015, 43(17): 1971-1979.
[22] Lundgaard L E, Hansen W, Linhjell D, et al. Aging of oil-impregnated paper in power transformers[J]. IEEE Transactions on Power Delivery, 2004, 19(1): 230-239.
[23] Emsley A M, Stevens G C. Review of chemical indicators of degradation of cellulosic electrical paper insulation in oil-filled transformers[J]. IEE Proceedings-Science Measurement and Technology, 1994, 141(5): 324-334.