Creepage discharge on insulation barriers in aged power transformers

IEEE Transactions on Dielectrics and Electrical Insulation

Volumn 17, Issue 4, 2010, Pages 1327-1335

  Dai, J ^a   Wang, Z ^a   Jarman, P ^b  

^a UNIVERSITY OF MANCHESTER   (United Kingdom)

^b NATIONAL GRID   (United Kingdom)

Author keywords

ageing and failure; Creepage discharge; insulation barriers; transformers

Indexed keywords

AC VOLTAGE; BREAKDOWN VOLTAGE; CREEPAGE DISCHARGES; DIELECTRIC STRENGTHS; EXPERIMENTAL RESEARCH; HIGH MOISTURE; INSULATION BARRIERS; MOISTURE CONTENTS; OIL GAPS; PARTIAL DISCHARGE INCEPTION VOLTAGE; PLATE ELECTRODES;

ELECTRIC MACHINE INSULATION; FAILURE ANALYSIS; FLASHOVER; MOISTURE; MOISTURE DETERMINATION; PARTIAL DISCHARGES; TRANSFORMER SUBSTATIONS;

POWER TRANSFORMERS;

EID: 77955567873     PISSN: 10709878     EISSN: None     Source Type: Journal    
DOI: 10.1109/TDEI.2010.5539705     Document Type: Article

References (26)

1. V. Sokolov, Z. Berler, and V. Rashkes, "Effective Methods of Assessment of Insulation System Conditions in Power Transformers: A View Based on Practical Experience", IEEE Electr. Insul. Conf. and Electrical Manufacturing & Coil Winding Conference, Cincinnati, OH, USA, pp.659-667,1999.
2. T. Leibfried, U. Thieb, I. Hohlein, B. Breitenbauch, T. Lainck, J. Leibner, and S. Truant, "Profile of Water Content and Degree of Polymerisation in the Solid Insulation of Power Transformers", IEEE Intern. Sympos. Electr. Insul. (ISEI), Indianapolis, USA, pp.109-112, 2004.
3. E. Kuffel, W. S. Zaengl, and J. Kuffel, High Voltage Engineering: Fundamentals: Butterworth-Heinemann, 2000.
4. K. Wechsler and M. Riccitiello, "Electric Breakdown of a Parallel Solid and Liquid Dielectric System", AJEE Trans. Power App., Vol.80, pp. 365-369, 1961.
5. J. K. Nelson and C. Shaw, "The Impulse Design of Transformer Oilcellulose Structures", IEEE Trans. Dielectr. Electr. Insul., Vol.13, pp. 477-483, 2006.
6. H. O. Moser, Transformerboard: Special print of Scientia Electrica, 1979.
7. T. A. Prevost, "Dielectric Properties of Natural Esters and their Influence on Transformer Insulation System Design and Performance", Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES, pp.30-34, 2006.
8. L. Lundgaard, D.Linhjell, G. Berg, and S. Sigmond, "Propagation of Positive and Negative Streamers in Oil with and without Pressboard Interfaces," IEEE Transactions on Dielectrics and Electrical Insulation, vol.5, pp. 388-396, 1998.
9. E. F. Kelley and R. E. Hebner, "Electrical Breakdown in Composite Insulating Systems: Liquid-solid Interface Parallel to the Field", IEEE Trans. Electr. Insul., Vol.16, pp. 297-303, 1981.
10. E. A. Cherney and J. D. Croos, "Electrical Breakdown at Solid-Liquid Interfaces", IEEE Trans. Elec. Insul, Vol.12, pp. 214-218, 1977.
11. J. Li, W. Si, X. Yao, and Y. Li, "Partial Discharge Characteristics over Differently Aged Oil/pressboard Interfaces", IEEE Trans. Dielectr. Electr. Insul.,Vol. 16, pp. 1640-1647, 2009.
12. Y. Torshin, "Monochannel propagation mechanism in transformer oil at low breakdown probabilities", IEEE 12th Intern. Conf. Conduction and Breakdown in Dielectric Liquids, (ICDL), pp.230-233, 1996.
13. O. Lesaint and R. Tobazeon, "Streamer Generation and Propagation in Transformer Oil under AC Divergent Field Conditions", IEEE Trans.,Electr. Insul., Vol.23, pp. 941-954, 1988.
14. O. Lesaint and P. Gournay, "On the Gaseous Nature of Positive Filamentary Streamers in Hydrocarbon Liquids. Part I: Influence of the Hydrostatic Pressure on the Propagation", J. Phys. D Appl. Phys., Vol.27, pp. 2111-2116, 1994.
15. E. Gournay and O. Lesaint, "On the Gaseous Nature of Positive Filamentary Streamers in Hydrocarbon Liquids. Part II: Propagation, Growth and Collapse of Gaseous Filaments in Pentane", J. Phys. D Appl. Phys., Vol.27, pp. 2117-2127, 1994.
16. T. W. Liao and J. H. Anderson, "Propagation Mechanism of Impulse Corona and Breakdown in Oil", AIEE Trans. Pt. I, Vol.72, pp. 641-647, 1953.
17. O. Lesaint, "Prebreakdown Phenomena in Liquids and Their Relation with Breakdown Properties in High Voltage Ppplications", CIGRE A2-D1, Bruges, Belgium, 2007.
18. S. Ingebrigtsen, M. Dahlund, W. Hansen, D. Linhjell and L.E. Lundgaard, "Solubility of Carboxylic Acids in Paper (Kraft)-oil Insulation Systems", IEEE Conf. Electr. Insul. Dielectr. Phenomena, Colorado, USA, pp.253-257, 2004.
19. BS EN 60641-60642:2004, Pressboard and Presspaper for Electrical Purposes-Part 2: Methods of Tests.
20. J. K. Nelson, "An Assessment of the Physical Basis for the Application of Design Criteria to Dielectric Structures", IEEE Trans. Dielectr. Electr. Insul., Vol.24, pp. 835-847, 1989.
21. J. H. Mason, "Breakdown of Solid Dielectrics in Divergent Fields", IEEE Trans. Electr. Insul., Vol.24, pp. 83-89, 1955.
22. X. Wang and Z. D. Wang, "Particle Effects on Breakdown Voltage of Mineral and Ester based Transformer Oils", IEEE Conf. Electr. Insul. Dielectric Phenomena, Quebec, Canada, pp. 598-602, 2008.
23. V. G. Aralkellian and I. Fofana, "Water in Oil-Filled, High-Voltage Equipment, Part I: States, Solubility, and Equilibrium in Insulating Materials", IEEE Electr. Insul. Mag. Vol.23, No.4, pp. 15-27, 2007.
24. V. Y. Ushakov, Impulse Breakdown of Liquids, Springer Berlin Heidelberg, 2007.
25. M. Harada, Y. Ohga, I. Watanabe, and H. Watarai, "Ionization Energies for Solvated Polycyclic Aromatic Hydrocarbons," Chemical Physics Letters 303, pp. 489-492, 1999.
26. A. K. Lokhanian, T. I. Morozova, G. Y. Shneider, V. V. Sokolov, and V. M. Chornogotsky, "Internal Insulation Failure Mechanisms of HV Equipment under Service Conditions", CIGRE Report 15-201, Paris, France, 2002.