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Theassessment of manufacturing quality of hv machine insulation on the base of low frequency measurements.

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Konferencja
APTADM 2007, III International Conference on Advances in Processing Testing and Application of Dielectric Materials., September, 26-28, 2007 Wrocław, Poland
Języki publikacji
EN
Abstrakty
EN
This paper presents degradation mechanism of epoxy-mica-glass insulation and influence of service conditions on kinetics of this mechanism. But the most important factor here is production quality. Basics of dielectric spectroscopy in time and frequency domain were described and application of this method for estimation of HV insulation condition. Research conducted on insulation models showed that good indicators of insulation condition are value of charge and time of relaxation in low frequencies range. There was an example given of FDS measurements application for quality estimation of technology in postproduction tests. This method is very accurate and allows to identify defective production technology and insulation aged in service.
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autor
  • Technical University of Szczecin
Bibliografia
  • [1] Vogelsang R., Weiers T., Fröhlich K.. Brütsch R., Electrical Breakdown in High-Voltage Winding Insulayions of Different Manufacturing Qualities. IEEE Electr. Insul. Vol. 22, No. 3, 2006, pp. 5-12.
  • [2] Kaufhold M., Schäfer K„ Bauer K., Bethge A., Risse J., Interface Phenomena in Stator Winding Insulation - Challenges in design. Diagnosis, and Service Experience, IEEE Electrical Insulation Magazine, Vol. 18, No. 2, 2002, pp. 27-36.
  • [3] Nakamura Y.. Yamaguchi M„ Kitayama A., and oth. J. Appl. Polymer Science. 39, 1990. pp. 1045-1060.
  • [4] Och M., Yamashita K. Shimbo M., The Mechanism for Occurence of Internal Stress during Curing Epoxide Resins, J. Appl. Polymer Sei, Vol. 43, No. 11, 1991, pp. 2013-2019.
  • [5] Trotignon J., Verdu J., Comparative study of flexural falique properties of epoxy and PEE composites and matrices, T. Chandra, D. Dhingra (eds.), Advances Composites 93. The Minerals, Metals and Materials Society, 1993.
  • [6] Tanaka T., Aging of Polymeric and Composite Insulating Materials. Aspects of Interfacial Performance in Aging, IEEE Trans. DEI, Vol. 9. No. 5, 2002, pp. 704-716.
  • [7] SCHRIJVER C, HERDEN A., KÄRNER H.. Fundamental Ageing Mechanisms of Fibre Reinforced Polymer (FRP) Insulators, 10lh ISH, Montreal 1997.
  • [8] SUBOCZ J., Wybrane zagadnienia przewodnictwa i relaksacji dielektrycznej w aspekcie diagnostyki izolacji kompozytowej. Prace Naukowe Politechniki Szczecińskiej nr 580, Szczecin 2003.
  • [9] JONSCHER A.K.. The Universal Dielectric Response and Its Physical Significance. IEEE Trans.El.Insulation, Vol. 27, No. 3, 1992. pp. 407-423.
  • [10] SUBOCZ J., Dielectric spectroscopy of insulation composite materials, IEEE 7,h International Conf. on Solid Dielectric", Eindhoven 2001, pp. 333-336.
  • [11] HAVRILIAK S. JR., HAVRILIAK S.J. Dielectric and Mechanical Relaxation in Materials. Analysis, Interpretation, and Application to Polymers, Hanser Publishers, Munich. Vienna, New York 1997.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW9-0004-0071
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