Pahlavanpour P, Eklund, Martins M A．Insulating paper ageing and furfural formation[C]. Proceedings of Electrical Insulation and Electrical Manufacturing & Coil Winding Technology Conference, Indian- apolis, United States, 2003: 283-288.
[2]
Saha T K. Review of modern diagnostic techniques for assessing insulation condition in aged trans-
[3]
formers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2003, 10(5): 903-917.
[4]
Zaengl W S. Application of dielectric spectroscopy intime and frequency domain for HV power equip-
Blennow J, Ekanayake C, Walczak K, et al. Field experiment with measurement of dielectric response in frequency domain for power transformer diagnostics[J]. IEEE Transactions on Dielectric and Electrical Insulation, 2006, 21(2): 681-688.
Liao Ruijin, Liang Shuaiwei, Yang Lijun, et al. Insulation thermal aging properties of natural ester immersed paper comparing with that of conventional and thermally upgraded papers[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 12-17.
[9]
Emsley A M, Stevens G C. Review of chemical indicators of degradation of cellulosic electrical paper insulation in oil-filled transformers[J]. Proceedings of IEE Science, Measurement and Techno- logy, 1994, 141(5): 324-334.
[10]
Shroff D H, Stannett A W. Review of paper ageing in power transformers[J]. IEE Proceedings of Generation, Transmission and Distribution, 1985, 132(6): 312-319.
[11]
Kuang Y C, Chen G, Jarmm P. Recovery voltage measurement on oil-paper insulation with simple geometry and controlled environment[C]. Proceedings of the IEEE International Conference on Solid Diele- ctrics, Toulouse, France, 2004, 2: 739-742.
[12]
Saha T K, Purkait P. Investigation of polarization and depolarization current measurements for the assessment of oil-paper insulation of aged transformers[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2004, 11(1): 144-154.
[13]
Farahani M, Borsi H, Gockenbach E. Dielectric response studies on insulating system of high voltage rotating machines[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2006, 13(1): 383-393.
[14]
Yew J H, Pradhan M K, Saha T K. Effects of moisture and temperature on the frequency domain spectroscopy analysis of power transformer insulation[C]. IEEE Power Engineering Society General Meeting, Pittsburgh, USA, 2008: 1-8.
[15]
Liao R, Hao J, Chen G, et al. Quantitative analysis of ageing condition of oil-paper insulation by frequency domain spectroscopy[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2012, 19(3): 821-830.
Liao Ruijin, Hao Jian, Yang Lijun, et al. Relationship between frequency domain dielectric characteristic quantity and aging status of transformer oil-paper insulation[J]. Transactions of China Electrotechnical society, 2012, 27(5): 43-49, 76.
[18]
Ekanayake C, Gubanski S M, Graczkowski A, et al. Frequency response of oil impregnated pressboard and paper samples for estimating moisture in transformer insulation[J]. IEEE Transactions on Power Delivery, 2006, 21(3): 1309-1317.
Wei Jianlin, Wang Shiqiang, Peng Huadong, et al. Investigation of dielectric response characteristics of transformer oil-paper insulation—dielectric spectroscopy of acceleratedly thermal aging[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 56-62.
[21]
Saha T K, Purkait P. Investigations of temperature effects on the dielectric response measurements of transformer oil-paper insulation system[J]. IEEE Trans- actions on Power Delivery, 2008, 23(1): 252-260.
[22]
Setayeshmehr A, Fofana I, Akbari A, et al. Effect of temperature, water content and aging on the dielectric response of oil-impregnated paper[C]. IEEE Inter-
[23]
national Conference on Dielectric Liquids, France, 2008: 1-4.
[24]
Saha T K, Purkait P. Effects of temperature on time-domain dielectric diagnostics of transformers[C]. Institution of Engineers, Australia, 2004:157-162.
[25]
Gielniak J, Graczkowski A, Moranda H, et al. Moisture in cellulose insulation of power transformers-
[26]
statistics[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, 20(3): 981-987.
Yang Lijun, Liao Ruijin, Sun Huigang, et al. Investi-
[29]
21 gation on properties and characteristics of oil-paper insulation in transformer during thermal degradation process[J]. Transactions of China Electrotechnical Society, 2009, 24(8): 27-33.
Hao Jian, Liao Ruijin, Yang Lijun, et al. Aging status assessment of power transformer oil-paper insulation by frequency-domain dielectric spectroscopy[J]. Power System Technology, 2011, 35(7): 187-193.
