Influence of temperature, moisture content and ageing on oil impregnated paper bushings insulation

IEEE Transactions on Dielectrics and Electrical Insulation

Volumn 20, Issue 4, 2013, Pages 1421-1427

  Mikulecky, Antun ^a   Stih, Zeljko ^b  

^a KONCAR Electrical Engineering Institute   (Croatia)

^b UNIVERSITY OF ZAGREB   (Croatia)

Author keywords

aging; capacitance; dielectric losses; humidity; Insulators; oil insulation; paper insulation; power transformer; temperature

Indexed keywords

DIELECTRIC DISSIPATION FACTORS; DIFFERENT MOISTURE CONTENTS; INFLUENCING PARAMETERS; OIL IMPREGNATED PAPERS; OIL INSULATIONS; PAPER INSULATION; TEMPERATURE DEPENDENCE; TRANSFORMER FAILURE;

AGING OF MATERIALS; ATMOSPHERIC HUMIDITY; C (PROGRAMMING LANGUAGE); CAPACITANCE; DIELECTRIC LOSSES; ELECTRIC INSULATORS; INSULATION; MOISTURE DETERMINATION; POWER TRANSFORMERS; TEMPERATURE;

BUSHINGS;

EID: 84881537985     PISSN: 10709878     EISSN: None     Source Type: Journal    
DOI: 10.1109/TDEI.2013.6571464     Document Type: Article

References (13)

1. P. V. Goosen, "Transformers accessories", CIGRE 1996, Paris, ref. 12-104.
2. A. Mikulecky, Capacitance and Dielectric Dissipation Factor of Transformers Bushings, Ph.D. thesis, University of Zagreb, Zagreb, Croatia, 2006 (in Croatian).
3. V. V. Sokolov and B. V. Vanin, "Evaluation and identification of typical defects and failure modes in 110-750 kV bushings", 64th Int'l. Conf. Doble clients, 1997.
4. E. Németh, "Selective investigation of long time constant ranges of polarization by DC methods" IEE 3rd Int'l. Conf. Dielectr. Materials Measurements Applications (DMMA), Birmigham, UK, pp. 203-206, 1979. (Pubitemid 10480593)
5. M. H. Zink, V. Klipfel, F. Berger and A. Küchler, "Ageing-condition Assessment of Generator Transformer Bushings by means of Dielectric Simulation Models", IEEE Int'l. Conf. Condition Monitoring and Diagnosis (CMD), Bali, Indonesia, pp. 137-140, 2012.
6. A. Küchler, F. Hullmandel, K. Bohm, C. Neumann, N. Koch, K. Loppach, C. Krause and J.-J Alff: "Condition assessment of aged transformers bushing insulations", CIGRE, Paris, France, A2-104, 2006.
7. A. Mikulecky, "Influence of humidity on capacitance and dielectric dissipation factor of transformers bushings" 7th. Conf. Croatian CIGRE organization, Cavtat, A2-10, 2005. (in Croatian)
8. J. Szymanski, A. Graczkowski and H. Moscicka-Grzesiak, "Influence of Moisture Distribution in Oil-Paper Insulation on its Dielectric Response in Time Domain", Int'l. Sympos. High Voltage Eng. (ISH), Ljubljana, T7-120, (CD), 2007.
9. H. P. Moser, Transformer Board, Sientia Electrica, EHV-Weidmann Lim., St. Johnsbury, Vermont, U.S.A., p. 32, 1979.
10. N. S. Jyothi, T. S. Ramu and M. Mandlik, "Temperature Distribution in Resin Impregnated Paper Insulation for Transformer Bushings", IEEE Trans. Dielectr. Electr. Insul., Vol. 17, No. 3, pp. 931-938, 2010.
11. M. Koch and T. Prevost, "Analysis of Dielectric Response Measurements for Condition Assessment of Oil-Paper Transformer Insulation", IEEE Trans. Dielectr. Electr. Insul., Vol.19, No. 6, pp. 1908-1915, 2012.
12. R. Liao, J. Hao, G. Chen and L. Yang, "Quantitative Analysis of Ageing Condition of Oil-Paper Insulation by Frequency Domain Spectroscopy", IEEE Trans. Dielectr. Electr. Insul., Vol. 19, No. 3, pp. 821-830, 2012.
13. P. Verelius and M. Ohlen, "Bushing Insulation Diagnostics Based on Dielectric Response", Electricity + Control, pp. 50-59, Crown Publications, South Africa, 2011.