A comparative study of thermal aging of transformer insulation paper impregnated in natural ester and in mineral oil

European Transactions on Electrical Power

Volumn 20, Issue 4, 2010, Pages 518-533

  Liao, Ruijin ^a   Liang, Shuaiwei ^a   Sun, Caixin ^a   Yang, Lijun ^a   Sun, Huigang ^b  

^a CHONGQING UNIVERSITY   (China)

^b ABB Corporate Research   (China)

Author keywords

Aging; Insulation; Natural ester; Oil; Paper; Transformer

Indexed keywords

ABNORMAL PHENOMENON; AGING; AGING CONDITIONS; AGING PROCESS; AGING RATES; AGING TIME; CHEMICAL MECHANISM; COMPARATIVE STUDIES; CONVENTIONAL TRANSFORMER; DEGREE OF POLYMERIZATION; DIELECTRIC FLUID; INFRARED SPECTRUM; INSULATION PAPER; MICRO SURFACES; NATURAL ESTER; OIL-PAPERS; PAPER SAMPLES; TRANSFORMER INSULATION;

ACIDS; ESTERIFICATION; HYDROCARBONS; INFRARED SPECTROSCOPY; INSULATING MATERIALS; KRAFT PAPER; LUBRICATING OILS; MINERAL OILS; MINERALS; OIL FILLED TRANSFORMERS; POLYMERIZATION; SILICATE MINERALS; THERMAL AGING; THERMAL INSULATION; WATER CONTENT;

ESTERS;

ACIDS; AGING; ESTERIFICATION; ESTERS; HYDROCARBONS; INFRARED SPECTROSCOPY; INSULATION; KRAFT PAPERS; LUBRICATING OIL; MINERAL OIL; MINERALS; MOISTURE CONTENT; PAPER; THERMAL INSULATION; TRANSFORMERS;

EID: 77952030632     PISSN: 1430144X     EISSN: 15463109     Source Type: Journal    
DOI: 10.1002/etep.336     Document Type: Article

References (22)

1. Fofana I, Borsi H, Gockenbach E, Farzaneh M. Aging of transformer insulating materials under selective conditions. European Transactions on Electrical Power 2007; 17:450-470. (Pubitemid 47524288)
2. Nakamura K, Kato K, Koide H, Hatta Y, Okubo H. Fundamental property of electric field in rapeseed ester oil based on Kerr electro-optic measurement. IEEE Transactions on Dielectrics and Electrical Insulation 2006; 13(3):601-607. (Pubitemid 44144140)
3. Fofana I, Wasserberg V, Borsi H, Gockenbach E. Retrofilling condition of HV transformers. IEEE Electrical Insulation Magazine 2001; 17(2):17-30.
4. Bertrand Y, Hoang LC. Vegetal oils as substitute for mineral oils. Proceedings of the 7th Intemational Conference on Properties and Applications of Dielectric Materials, Nagoya, Japan, 2003; Vol.12, 491-494.
5. McShane CP, Corkran JL, Rapp KJ, Luksich KJ. Aging of paper insulation retrofilled with natural ester dielectric fluid. Annual Report Conference on Electrical Insulation and Dielectric Phenomena Albuquerque, NM, USA, 2003: pp. 124-127.
6. McShane CP, Rapp KJ, Corkran JL. Aging of paper insulation in natural ester dielectric fluid. IEEE/PES Transmission and Distribution Conference and Exposition, Atlanta, USA, 2001; Vol.12, 675-679. (Pubitemid 34064057)
7. Perrier C, Beroual A, Bessede JL. Improvement of power transformers by using mixtures of mineral oil with synthetic esters. IEEE Transactions on Dielectrics and Electrical Insulation 2006; 13(3):556-564. (Pubitemid 44144134)
8. Oommen TV. Vegetable oils for liquid-filled transformers. IEEE Electrical Insulation Magazine 2002; 18(1):6-11.
9. IEEE Guide for loading mineral-oil-immersed transformers. IEEE Standard 1995; C57:91-1995.
10. Lundgaard LE, Hansen W, Linhjell D, Painter TJ. Aging of oil-impregnated paper in power transformers. IEEE Transactions on Power Delivery 2004; 19(1):230-239.
11. Emsley AM, Xiao X, Heywood RJ, Ali M. Degradation of cellulosic insulation in power transformers. Part 4: Effects of aging on the tensile strength of paper. IEE Proceedings-Science, Measurement and Technology 2000; 147(6):285-290. (Pubitemid 32134362)
12. Emsley AM, Stevens GC. Review of chemical indicators of degradation of cellulosic electrical paper insulation in oil-filled transformers. IEE Proceedings-Science, Measurement and Technology 1994; 141(5):324-334.
13. Emsley AM, Heywood RJ, Ali M, Eley CM. On the kinetics of degradation of cellulose. Cellulose 1997; 4(1):1-5.
14. Heywood RJ, Stevens GC, Ferguson C, Emsley AM. Life assessment of cable paper using slow thermal ramp methods. Thermochimica Acta 1999; 332(2):189-195. (Pubitemid 129498118)
15. Emsley AM, Ali M, Heywood RJ. A size exclusion chromatography study of cellulose degradation. Polymer 2000; 41(24):8513-8521.
16. Morais RM, Mannheimer WA, Carballeira M, Noualhaguet JC. Furfural analysis for assessing degradation of thermally upgraded papers in transformer insulation. IEEE Transactions on Dielectrics and Electrical Insulation 1999; 1.6(2):159-163.
17. Borsi H. Dielectric behaviour of Silicon and ester liquids for use in distribution transformers. IEEE Transactions on Electrical Insulation 1991; 26(4):755-762. (Pubitemid 21704161)
18. Lundgaard LE, Hansen W, Ingebrigtsen S, Linhjell D, Dahlund M. Aging of Kraft paper by acid catalyzed hydrolysis. International Conference on Dielectric Liquids (ICLD), Coimbra, Portugal, 2005: pp. 381-384. (Pubitemid 41732134)
19. Chauvelon G, Saulnier L, Buleon A, et al. Acidic activation of cellulose and its esterification by long-chain fatty acid. Journal of Apply Polymer Science 1999; 74(8):1933-1940. (Pubitemid 30512144)
20. Lundgaard LE, Hansen W, Ingebrigtsen S. Ageing of mineral oil impregnated cellulose by acid catalysis. IEEE Transactions on Dielectrics and Electrical Insulation 2008; 15(2):540-546. (Pubitemid 351540667)
21. Fofana I, Wasserberg V, Borsi H. Challenge of mixed insulating liquids for use in high-voltage transformers.1. Investigation of mixed liquids. IEEE Electrical Insulation Magazine 2002; 18(3):18-31. (Pubitemid 34808247)
22. Emsley AM, Xiao X, Heywood RJ. Degradation of cellulosic insulation in power transformers. Part 3: Effects of oxygen and water on ageing in oil. IEE Proceedings-Science, Measurement and Technology 2000; 147(3):115-119. (Pubitemid 33770386)