Experimental investigation of insulation parameters affecting power transformer condition assessment using frequency domain spectroscopy

IEEE Transactions on Dielectrics and Electrical Insulation

Volumn 19, Issue 6, 2012, Pages 1851-1859

  Pradhan, M K ^a   Yew, K J H ^b  

^a ABB CORPORATE RESEARCH   (Sweden)

^b ALSTOM   (France)

Author keywords

dielectric polarization; frequency domain analysis; insulation diagnosis; insulation geometry; power transformer; prototype

Indexed keywords

CORRECTIVE ACTIONS; DIELECTRIC POLARIZATION; DIELECTRIC RESPONSE; EXPERIMENTAL INVESTIGATIONS; EXPERIMENTAL PROCEDURE; FREQUENCY DOMAIN SPECTROSCOPY; INSULATION DIAGNOSIS; INSULATION DUCTS; PROTOTYPE; RELAXATION MEASUREMENTS; TEST VOLTAGE; TIME AND FREQUENCY DOMAINS; TRANSFORMER CONDITION ASSESSMENT; TRANSFORMER INSULATION; TRANSFORMER MODELS;

FACTOR ANALYSIS; FREQUENCY DOMAIN ANALYSIS; GEOMETRY; POWER TRANSFORMERS;

INSULATION;

EID: 84872148740     PISSN: 10709878     EISSN: None     Source Type: Journal    
DOI: 10.1109/TDEI.2012.6396940     Document Type: Article

References (34)

1. "An International survey on failures in large power transformers in service", SC 12, WG 5, Electra, No. 88, pp. 21-48, 1983.
2. M. K. Pradhan, Conformal thermal models for optimal loading and elapsed life estimation of power transformer, Ph.D. thesis Dept. High Voltage Engineering, Indian Institute of Science, Bangalore, India, 2005.
3. CIGRE Task Force D1.01.10, "Ageing of cellulose in mineral oil insulated transformers", Electra, No. 234, pp. 50-59, 2007.
4. D.H. Shroff and A.W. Stannett, "A Review of paper ageing in Power transformers", IEE Proc. Vol.132, pp.312-319, 1985. (Pubitemid 16456271)
5. ASTM Designation D 4243-83, "Standard methods for measurement of average viscometric degree of polymerization of new and aged electrical papers and press boards", 1983.
6. E. Dornenburg and W. Strittmatter, "Monitoring oil-cooled transformers by gas analysis", Brown Boveri Rev. Vol.5, No.74, pp. 238-247, 1970
7. M. K. Pradhan and T. S. Ramu, "On the estimation of elapsed life of oilimmersed power transformers", IEEE Trans. Power Delivery, Vol. 20, pp. 1962-1969, 2005. (Pubitemid 41194799)
8. IEC 60814, "Insulating liquids-oil-impregnated paper and pressboarddetermination of water by automatic coulometric Karl Fischer titration", Geneva, Switzerland, 1997.
9. Y. Du, M. Zahn, B. C. Lesieutre, A. V. Mamishev and S. R. Lindgren, "Moisture equilibrium in transformer paper-oil systems", IEEE Electr. Insul. Mag., Vol. 15, No. 1, pp. 11-20, 1999.
10. W. S. Zaengl, "Dielectric spectroscopy in time and frequency domain for HV power equipment. I. Theoretical considerations", IEEE Electr. Insul. Mag., Vol. 19, No. 5, pp 5-19, 2003.
11. W. S. Zaengl, "Applications of dielectric spectroscopy in time and frequency domain for HV power equipment", IEEE Electr. Insul. Mag., Vol. 19, No. 6, pp. 9-22, 2003.
12. U. Gafvert, L. Adeen, M. Tapper, P. Ghaseim and B. Jonsson, "Dielectric spectroscopy in time and frequency domain applied to diagnostics of power transformer", IEEE 6th Int'l. Conf. Properties Applications of Dielectric Materials, Xian, China, pp. 825-830, 2000. (Pubitemid 32031533)
13. A. Bognar, G. Csepes, L. Kalocsai, and I. Kispal, "Spectrum of polarization phenomena of long time-constant as a diagnostic method of oil-paper insulating systems", IEEE 3rd Int'l. Conf. Properties and Applications of Dielectric Materials, Tokyo, Japan, pp. 723-726, 1991.
14. U. Gafvert, G. Frimpong and J. Fuhr, "Modelling of Dielectric measurements on power transforms", Proc. CIGRE, Paris Session, Paris, France, Paper No. 15/103, 1998.
15. L. E. Lundgaard, W. Hansen, D. Linhjell, and T. J. Painter, "Ageing of oil-impregnated paper in power transformers", IEEE Trans. Power Delivery, Vol. 19, No. 1, pp. 230-239, 2004.
16. C. Ekanayake, S. M. Gubanski, A. Graczkowski, and K. Walczak, "Frequency response of oil impregnated pressboard and paper samples for estimating moisture in transformer insulation", IEEE Trans. Power Delivery, Vol. 21, pp. 1309-1317, 2006. (Pubitemid 43983656)
17. A. A. S. Akmal, H. Borsi, E. Gockenbach and V. Wasserberg, "Dielectric Behavior of Insulating Liquids at Very Low Frequency", IEEE Trans. Dielectr. Electr. Insul., Vol. 13, pp. 532-538, 2006. (Pubitemid 44144131)
18. S.M. Gubanski, P. Boss, G. Csepes, V.D. Houhanessian, J. Filippini, P. Guuinic, U. Gafvert, V. Karius, J. Lapworth, G. Urbani, P. Werelius and W.S. Zaengl, "Dielectric response methods for diagnostics of power transformers", Electra, No. 202, pp. 23-34̧ 2001. Also in CIGRE technical brochure, No. 254, Paris, France, 2004.
19. M. Koch and S. Tenbohlen "Diagnostics of oil-paper-insulations using relaxation currents", 14th Int'l. sympos. High Voltage Eng. (ISH), Beijing, China, pp. 507-512, 2005.
20. A. K. Jonscher, Dielectric Relaxation in Solids, Chelsea Dielectrics Press, London, UK, chapter 5, 1983.
21. CIGRE Task force D1.01.09 report "Dielectric response methods for diagnostics of power transformers, 2004.
22. G. Csepes, "MVM Rt Oil-paper Transformer Model (designed and manufactured by Tramer Ltd. and B&C diagnostic Ltd.", private correspondence, 2001.
23. J. H. Yew, M. K. Pradhan, and T. K. Saha, "Effects of Moisture and Temperature on the Frequency Domain Spectroscopy Analysis of Power Transformer Insulation", IEEE Power Eng. Soc. General Meeting, Pittsburgh, Pennsylvania, USA, pp. 1-8, 2008.
24. J. H. Yew, Factors Affecting the Assessment of Insulation Condition of Power Ttransformer by Frequency Domain Spectroscopy Measurements, Ph.D. thesis University of Queensland, Brisbane, Australia, 2009.
25. G. E. Services, IDA 200-Insulation Diagnostic System User's Manual.
26. D. Linhjell, L. Lundgaard, and U. Gafvert, "Dielectric response of mineral oil impregnated cellulose and the impact of ageing", IEEE Trans. Dielectr. Electr. Insul., Vol. 14, pp. 156-169, 2007. (Pubitemid 46375893)
27. D. Linhjell, "FDS measurement on paper at different ageing levels", private communication, 2012.
28. H. N. Githa and T. S. Ramu, "Estimation of residual life in electrical insulation", 5th Int'l. Conf. Dielectric Materials, Measurements and Applications, Canterbury, UK, pp. 155-158, 1988.
29. U. Gafvert, "Influence of geometric structure and material properties on dielectric frequency response of composite oil cellulose insulation", Int'l. Sympos. Electr. Insul. Materials, Kitakyushu, Japan, pp.73-76, 2005. (Pubitemid 41382279)
30. M. K. Pradhan, J. H. Yew and T. K. Saha, "Influence of the geometrical parameters of power transformer insulation on the frequency domain spectroscopy measurement", IEEE Power Eng. Soc. General Meeting, pp.1-8, 2008.
31. IEEE Loading Guide for Mineral-Oil-Immersed Transformers, C57.91.1995.
32. T. Leibfried, U. Thieb, I. Hohlein, B. Breitenbauch, T. Lainck, J. Leibner and S. Truant, "Profile of water content and degree of polymerization in the solid insulation of power transformers", IEEE Int'l. Sympos. Electr. Insul. (ISEI), IN, USA, pp.109-112, 2004. (Pubitemid 40339218)
33. T. K. Saha, M. K. Pradhan and J. H. Yew, "Optimal time Selection for the polarization and depolarization current measurement for power transformer insulation diagnosis", IEEE Power Eng. Soc. General Meeting, Tampa, Florida, USA, pp. 1-7, 2007.
34. H. Borsi, E. Gockenbach and M. Kruger, "Method and apparatus for measuring a dielectric response of an electrical insulating system", U.S. Patent 2006/0279292.