The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Insulation Breakdown Properties of AC and DC according to Curvature Variation of PAI Organic/Inorganic Hybrid Coils

PAI 유/무기 하이브리드코일의 곡률변화에 따른 AC 및 DC 절연파괴 특성

  • Park, Jae-Jun (Department of Electrical Electronic Engineering, Joongbu University)
  • Received : 2016.09.18
  • Accepted : 2016.09.30
  • Published : 2016.10.01
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Abstract

4-types of coils were prepared by coating with polyamideimide (PAI) organic/inorganic hybrid. One type was made with original PAI vanish and the other 3-types were made of double layers, that was to say, high flexural PAI layer and high anti-corona PAI/nanosilica (15 wt%) layer. Drying temperature (T/D) were $220^{\circ}C$, $240^{\circ}C$, and $260^{\circ}C$, respectively and rectangular type coil for high-voltage rotating machine was used. DC and AC electrical breakdown tests were carried out in order to study the insulation properties according to T/D temperature and coil curvature (5, 15, and $25mm{\Phi}$). As the curvature increased, electrical breakdown voltage decreased and as T/D temperature decreased, electrical breakdown voltage increased.

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References

  1. Hitoshi Okubo; Naoki Hayakawa; Gian Carlo Montanari, "Technical Development on Partial Discharge Measurement and Electrical Insulation Techniques for Low Voltage Motors Driven by Voltage Inverters", IEEE Transactions on Dielectrics and Electrical Insulation, Volume: 14, Issue: 6 Pages: 1516-1530, 2007 https://doi.org/10.1109/TDEI.2007.4401236
  2. Hideyuki Kikuchi; Hidehito Hanawa, "Inverter surge resistant enameled wire with nanocomposite insulating material",IEEE Transactions on Dielectrics and Electrical Insulation,Volume: 19, Issue: 1, Pages: 99-106, 2012 https://doi.org/10.1109/TDEI.2012.6148507
  3. E. Ildstad and S. R. Chalise, Annual Report Conference on Electrical Insulation and Dielectric Phenomena, p.85 (2009)
  4. G. C. Stone, I. Culbert, E. A. Boulter and H. Dhirani, "Electrical Insulation for Rotating Machines. Design, Evaluation, Aging, Testing, and Repair" IEEE Press Series on Power Engineering (2004).
  5. Indian Standard Winding Wires-Test Methods Part 5 Electrical Properties (First Revision) ICS 29.060.10 (2012).
  6. Hideyuki Kikuchi; Hidehito Hanawa, "Inverter surge resistant enameled wire with nanocomposite insulating material", IEEE Transactions on Dielectrics and Electrical Insulation,Volume: 19, Issue: 1, Pages: 99-106, 2012 https://doi.org/10.1109/TDEI.2012.6148507
  7. M. Q. Nguyen; D. Malec; D. Mary; P. Werynski; B. Gornicka; L. Therese; Ph. Guillot, "Investigations on dielectric properties of enameled wires with nanofilled varnish for rotating machines fed by inverters", 2009 IEEE Electrical Insulation Conference, Pages: 377-381, 2009
  8. T. Demura; M. Fujii; Y. Miyashita; Win Maw Soe;S. Nakajima; T. Goshima, "Development of electro-deposition insulation for high heat-resistant magnet wire", Proceedings of 2005 International Symposium on Electrical Insulating Materials, 2005. (ISEIM 2005). Volume: 3, Pages: 628-632, 2005