|
|
|
| Influence of DBPC in Insulating Oil on Aging Rate of Oil-Paper System and Production Characteristics of Furfural |
| Liao Ruijin1, Feng Dawei1, Deng Bangfei2, Lin Yuandi1 |
1.State Key Laboratory of Power Transmission Equipment & System Security and New TechnologyChongqing University Chongqing 400044 China;
2.Chongqing Electric Power Test and Research Institute Chongqing 401123 China |
|
|
|
|
Abstract Dibutylparactesol(DBPC)is the most commonly used antioxidant in insulating oil. The study indicated that adding dibutylparactesolto insulating oil influenced the aging of insulating paper and production of furfural in laboratory. To further study the impact of DBPC on the aging of oil-paper insulation system and furfural production, different concentrations of DBPC were added to the oil-immersed insulating paper system,which were aged at 130℃ then. After that, the DP of insulating paper and the content of furfural in insulating oil as well as paper were periodically measured. Finally, the effect of antioxidants on aging rate of paper, furfural production and furfural ageing assessment of transformer was analyzed. The following conclusions were obtained. Firstly, the existence of antioxidants in insulating oil accelerates the aging of insulating paper. Therefore, the appending proportion of antioxidants in insulating oil should be minimized on the premise that its good antioxidant property is guaranteed. Secondly, the addition of antioxidants in insulating oil increases the furfural production and the lager amount of antioxidant was added, the more furfural was produced. Consequently, it is of vital significance to premeditate the amount of antioxidant in insulating oil when using furfural to evaluate the aging of transformer. Thirdly, the acid value of the oil increase when DBPC was added, and the hydrogen ions ionized by DBPC at high temperature is the main reason lead to paper accelerative age and increasingfurfural production.
|
|
Received: 19 February 2017
Published: 12 April 2018
|
|
|
|
|
|
[1] 李俭, 孙才新, 陈伟根, 等. 灰色聚类与模糊聚类集成诊断变压器内部故障的方法研究[J]. 中国电机工程学报, 2003, 23(2): 112-115.
Li Jian, Sun Caixin, Chen Weigen, et al.A method of synthesis based on the grey cluster and fuzzy cluster about internal fault diagnosis of transformer[J]. Proceedings of the CSEE, 2003, 23(2): 112-115.
[2] 罗治强, 董昱, 胡超凡. 2008年国家电网安全运行情况分析[J]. 中国电力, 2009, 42(5): 8-12.
Luo Zhiqiang, Dong Yu, Hu Chaofan.Analysis of state grid security in 2008[J]. Electric Power, 2009, 42(5): 8-12.
[3] 赵云峰, 张永强, 聂德鑫, 等. 基于模糊和证据理论的变压器本体绝缘状态评估方法[J]. 电力系统保护与控制, 2014, 42(23): 57-62.
Zhao Yunfeng, Zhang Yongqiang, Nie Dexin, et al.Application of fuzzy and evidence theory in power transformers condition assessment[J]. Power System Protection and Control, 2014, 42(23): 57-62.
[4] Pahlavanpour B, Linaker R, Povazan E.Extension of life span of power transformer by on-site improvement of insulating oils[J]. IET Conference, 1992, 16(8): 260-263.
[5] 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.Contrasting analysis and investigation on properties and products of oil-paper during thermal aging process[J]. Proceedings of the CSEE, 2008, 28(22): 53-58.
[6] Ali M, Eley C, Emsley A, et al.Measuring and understanding the ageing of kraft insulating paper in power transformers[J]. IEEE Electrical Insulation Magazine, 1996, 12(3): 28-34.
[7] Saha T K, Darveniza M, Yao Z T, et al.Investigating the effects of oxidation and thermal degradation on electrical and chemical properties of power transformers insulation[J]. IEEE Transactions on Power Delivery, 1999, 14(4): 1359-1367.
[8] 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.
[9] Jarman P, Hooton R, Walker L, et al.Transformer life prediction using data from units removed from service and thermal modelling[J]. CIGRE Session Paper, 2010: A2-212.
[10] Saha T K.Review of modern diagnostic techniques for assessing insulation condition in aged transformers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2003, 10(5): 903-917.
[11] Zhang X, Gockenbach E.Asset-management of transformers based on condition monitoring and standard diagnosis [feature article][J]. IEEE Electrical Insulation Magazine, 2008, 24(4): 26-40.
[12] 王有元, 高竣, 刘捷丰, 等. 变压器油纸绝缘老化与水分含量评估频域介电特征量[J]. 电工技术学报, 2015, 30(22): 215-221.
Wang Youyuan, Gao Jun, Liu Jiefeng, et al.Aging and moisture evaluation characteristic parameters for oil-paper insulation of transformer using frequency dielectric spectroscopy[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 215-221.
[13] 王永强, 律方成, 李和明. 基于贝叶斯网络和油中溶解气体分析的变压器故障诊断方法[J]. 电工技术学报, 2004, 19(12): 74-77.
Wang Yongqiang, Lü Fangcheng, Li Heming.Fault diagnosis for power transformer based on BN and DGA[J]. Transactions of China Electrotechnical Society, 2004, 19(12): 74-77.
[14] 蔡金锭, 刘永清, 蔡嘉. 油纸绝缘变压器极化等效电路分析及其老化评估[J]. 电工技术学报, 2016, 31(15): 204-212.
Cai Jindian, Liu Yongqing, Cai Jia, et al.Analysis of equivalent circuit of oil-paper insulation transformer relaxation response and aging evaluation[J]. Transactions of China Electrotechnical Society, 2016, 31(15): 204-212.
[15] 毕鹏翔, 张文元, 秦少臻, 等. 变压器固体绝缘状况的监测方法[J]. 高电压技术, 2000, 26(3): 47-51.
Bi Pengxiang, Zhang Wenyuan, Qin Shaozhen, et al.Methods for monitoring the condition of insulation inpower transformers[J]. High Voltage Engneering, 2000, 26(3): 47-51.
[16] Unsworth J, Mitchell F.Degradation of electrical insulating paper monitored with high performance liquid chromatography[J]. IEEE Transactions on Electrical Insulation, 1990, 25(4): 737-746.
[17] Pradhan M K.Assessment of the status of insulation during thermal stress accelerated experiments on transformer prototypes[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2006, 13(1): 227-237.
[18] Stebbins R D, Myers D S, Shkolnik A B.Furanic compounds in dielectric liquid samples: review and update of diagnostic interpretation and estimation of insulation ageing[C]//IEEE Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials, Nagoya, Japan,2003, 3: 921-926.
[19] 顾朝亮, 陈伟根, 邹经鑫, 等. 变压器油中溶解微量糠醛的激光拉曼光谱检测方法[J]. 电工技术学报, 2016, 31(20): 219-227.
GuChaoliang, Chen Weigen, ZouJingxin, et al. Detection of trace furfural dissolved in transformer oil using laser raman spectroscopy[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 219-227.
[20] Kan H, Miyamoto T, Makino Y, et al.Absorption of CO2 and CO gases and furfural in insulating oil into paper insulation in oil-immersed transformers[C]//IEEE Conference Record of the International Symposium on Electrical Insulation, Pittsburgh, USA, 1994: 41-44.
[21] Emsley A M, Xiao X, Heywood R J, et al.Degradation of cellulosic insulation in power transformers, part 2: formation of furan products in insulating oil[J].IET Proceedings of Science, Measurement and Technology, 2000, 147(3): 110-114.
[22] Lin Yuandi, Yang Lijun, Liao Ruijin, et al.Effect of oil replacement on furfural analysis and aging assessment of power transformers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2015, 22(5): 2611-2619.
[23] Yang Lijun, Lin Yuandi, Liao Ruijin, et al.Effects of temperature and aging on furfural partitioning in the oil-paper system of power transformers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(3): 1393-1401.
[24] Jalbert J, Lessard M C, Ryadi M.Cellulose chemical markers in transformer oil insulation, part 1: temperature correction factors[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, 20(6): 2287-2291.
[25] Zhang C H, MacAlpine J M K. Furfural concentration in transformer oil as an indicator of paper ageing: field measurements[C]//IEEE/PES Transmission & Distribution Conference and Exposition, Latin America, 2006: 1-6.
[26] Prevost T A.Thermally upgraded insulation in transformers[C]//IEEE Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005: 120-125.
[27] Pablo A D, Pahlavanpour B.Furanic compounds analysis: a tool for predictive maintenance of oil-filled electrical equipment[J]. Electra, 1997, 175(7): 9-31.
[28] Pablo A D. Furfural and ageing: how are they related[J]. Insulating Liquids, 1999, 29(1): 5/1-5/4.
[29] 杨舒娟. 防止大型变压器油老化的措施[J]. 露天采矿技术, 1993(2): 20-22.
Yang Shujuan.Measures for preventing oil aging of large transformer[J]. Opencast Mining Technology, 1993(2): 20-22.
[30] 张贤明. 电力设备用油的添加剂——T501型抗氧化剂[J]. 高压电器, 1994(6): 54-55.
Zhang Xianming.Additive for oil in electrical equipment-T501 antioxidant[J]. High Voltage Apparatus, 1994(6): 54-55.
[31] GBT14542—2005运行变压器油维护管理导则[S]. 2005.
[32] 刘小玲, 常燕, 万涛. 湖南电网变压器油族组成和抗氧化剂 T501 含量分析[J]. 湖南电力, 2012, 32(5): 21-22.
Liu Xiaoling, Chang Yan, Wan Tao.Chemical composition of transformer oil and T501 content analysis of antioxidant in Hunan power grid[J]. Hunan Electric Power, 2012, 32(5): 21-22.
[33] 李欣然. 油中糠醛和抗氧化剂含量与绝缘老化关联验证[J]. 电力科学与工程, 2014, 30(B06): 35-38.
Li Xinran.Correlation of furfural in oil and antioxidant content with insulation aging[J]. Electric Power Science and Engineering, 2014, 30(B06): 35-38.
[34] 李智, 冯炳焕. 变压器油中抗氧化剂含量的快速测量[J]. 变压器, 1998, 35(7): 34-36.
Li Zhi, Feng Binghuan.Rapid measurement of antioxidant content in transformer oil[J]. Transformers, 1998, 35(7): 34-36.
[35] 朱志平, 于卫卫, 黄云光, 等. 变压器油中 T501 抗氧化剂电化学特性研究及测定[J]. 长沙理工大学学报: 自然科学版, 2015, 12(2): 83-89.
Zhu Zhiping, Yu Weiwei, Huang Yunguang, et al.The electrochemical properties and determination of T501 antioxidant in transformer oil[J]. Journal of Changsha University of Science and Technology:Natural Science, 2015, 12(2): 83-89.
[36] 朱红梅. T501 抗氧化剂在进口矿物变压器油中的应用[J]. 西北电力技术, 2002, 30(6): 28-29.
Zhu Hongmei.Application of T501 antioxidant in imported mineral transformer oil[J]. Northwest China Electric Power, 2002, 30(6): 28-29.
[37] 廖瑞金, 孙会刚, 尹建国, 等. 水分对油纸绝缘热老化速率及热老化特征参量的影响[J]. 电工技术学报, 2012, 27(5): 34-42.
Liao Ruijin, Sun Huigang, Yin Jianguo, et al.Influence on the thermal aging rate and thermal aging characteristics caused by water content of oil-paper insulation[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 34-42.
[38] IEC 60296—2012fluids for electrotechnical applications unused mineral insulating oils for transformers and switchgear[S]. 2012.
[39] 毕鹏翔, 秦少臻. 变压器固体绝缘状况的监测方法[J]. 高电压技术, 2000, 26(3): 47-49.
Bi Pengxiang, Qin Shaozhen.Methods for monitoring the condition of insulation in power transformers[J]. High Voltage, 2000, 26(3): 47-49.
[40] Heywood R J, Stevens G C, Ferguson C, et al.Life assessment of cable paper using slow thermal ramp methods[J]. Thermochimica Acta, 1999, 332(2): 189-195.
[41] 王丽娟, 杨维民. 润滑油抗氧化剂的作用机理[J]. 润滑油,1998,13(1): 55-58.
Wang Lijuan, Yang Weimin.Mechanism of antioxidant action of lubricating oil[J]. Lubricating Oil, 1998, 13(1): 55-58.
[42] Shafizadeh F, Lai Y Z.Thermal degradation of 1, 6-anhydro-.beta.-D-glucopyranose[J]. The Journal of Organic Chemistry, 1972, 37(2): 278-284.
[43] Lundgaard L E, Hansen W, Ingebrigtsen S.Ageing of mineral oil impregnated cellulose by acid catalysis[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(2): 540-546.
[44] 吴广宁, 崔运光, 段宗超, 等. 有机酸对变压器油纸绝缘进一步热老化的催化作用试验研究[J]. 高电压技术, 2015, 41(3): 832-839.
Wu Guangning, Cui Yunguang, Duan Zongchao, et al.Experimental study on further thermal aging of transformer oil-paper insulation by organic acid catalysis[J]. High Voltage, 2015, 41(3): 832-839.
[45] Hohlein I, Kachler A J.Aging of cellulose at transformer service temperatures, part 2, influence of moisture and temperature on degree of polymerization and formation of furanic compounds in free-breathing systems[J]. IEEE Electrical Insulation Magazine, 2005, 21(5): 20-24.
[46] Fabre J, Pichon A.Deteriorating processes and products of paper in oil application to transformers[C]//Proceedings of CIGRE Conference, Paris, France,1960: 137-138.
[47] Scheirs J, Camino G, Avidano M, et al.Origin of furanic compounds in thermal degradation of cellulosic insulating paper[J]. Journal of Applied Polymer Science, 1998, 69(13): 2541-2547. |
|
|
|
2018, Vol. 33 
