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Preparation and Electrical Properties of Insulation Paper Composed of SiO 2 Hollow Spheres

Author

Listed:
  • Ruijin Liao

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Fuzhou Zhang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Yuan Yuan

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Lijun Yang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Tuan Liu

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Chao Tang

    (College of Engineering and Technology, Southwest University, Chongqing 400700, China)

Abstract

SiO 2 hollow spheres and low relative permittivity insulation paper handsheets composed of these SiO 2 hollow spheres with different weight percentages were successfully prepared. Low-content SiO 2 hollow spheres were uniformly dispersed in the insulation paper handsheets. The relative permittivity of the immersed oil Kraft-SiO 2 hollow sphere handsheets (K-SiO 2 ) initially decreased and then increased with increased amount of SiO 2 hollow spheres. K-5% SiO 2 possessed the lowest relative permittivity of approximately 1.68 at 50 Hz. The breakdown voltage of the paper-oil-paper composite insulation system increased from 26.4 kV to 30.5 kV with decreased relative permittivity of the paper from 2.55 to 1.68. The relationship between the relative permittivity and electric field strength of typical samples were also calculated.

Suggested Citation

  • Ruijin Liao & Fuzhou Zhang & Yuan Yuan & Lijun Yang & Tuan Liu & Chao Tang, 2012. "Preparation and Electrical Properties of Insulation Paper Composed of SiO 2 Hollow Spheres," Energies, MDPI, vol. 5(8), pages 1-9, August.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:8:p:2943-2951:d:19360
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