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Formation and migration of space charge packet in low density polyethylene

  • Zheng Feihu 
  • Zhang Yewen 
  • Gong Bin 
  • Zhu Jianwei 
  • Wu Changshun 
Article
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Abstract

Pressure wave propagation (PWP) method was utilized to observe the space charges packet-like behavior in sheet samples of low-density polyethylene (LDPE) under the relative low electric field. The experimental results show that space charge packets are always generated at the anode and move across the sample to the cathode regardless of the polarity of DC voltage. This paper discusses the migration of space charge packets at 30–40°C, the possible charge resource of space charge packets carriers and trap level of the space charge.

Keywords

solid dielectric low-density polyethylene space charge packet trap 

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References

  1. 1.
    Zhang, Y., Lewiner, J., Hanpton, N., Evidence of strong correlation on between space charge buildup and breakdown in cable insulators under DC stress, IEEE Trans. Elect. Insul., 1996, 31(6): 778–783.Google Scholar
  2. 2.
    Blaise, G., Sarjeant, W. J., Space charge in dielectrics energy storage and transfer dynamics from atomistic to macroscopic scale, IEEE Trans. Elect. Insul., 1998, 5(5): 779–783.CrossRefGoogle Scholar
  3. 3.
    Li, J. X., Zhang, Y. W., Xia, Z. F. et al., Effects of space charge on the process of aging and breakdown in polymer, Chinese Science Bulletin, 2000, 45(23): 2469–2475.Google Scholar
  4. 4.
    Zheng, F. H., Zhang, Y. W., Wu, C. S. et al., Piezo-PWP and PEA Methods for Measuring Space Charge in Solid Dielectric (in Chinese), Acta Phys. Sin., 2003, 52(5): 1137–1142.MathSciNetGoogle Scholar
  5. 5.
    Hozumi, N., Takada, T., Suzuki, H. et al., Space charge behavior in XLPE cable insulation under 0.2–1.2 MV/cm dc field, IEEE Trans. on DEI, 1998, 5(1): 82–90.Google Scholar
  6. 6.
    Hozumi, N., Suzuki, H., Okamoto, T. et al., Direct observation of time dependent space charge profiles in XLPE cable under high electric fields, IEEE Trans. on DEI, 1994, 3(3): 1068–1076.Google Scholar
  7. 7.
    Kaneko, K., Mizutani, T., Suzuoki, Y., Computer simulation on formation of space charge packets in XLPE films, IEEE Trans. on DEI, 1999, 6(2): 152–158.Google Scholar
  8. 8.
    Sessler, G. M., Electrets, 2nd ed., Berlin: Springer-Verlag, 1987, 95–99.Google Scholar
  9. 9.
    Chen, R., Kirsh, Y., Analysis of thermally stimulated processes, Oxford: Pergamon Press, 1981, 23–27.Google Scholar
  10. 10.
    Mizutani, T., Semi, H., Kaoeko, K., Space charge behavior in low-density polyethylene, IEEE Trans. on DEI, 2000, 7(4): 503–508.Google Scholar
  11. 11.
    Spear, W. E., J. Non-crystal. Solids, 1969, (1): 197–214.Google Scholar
  12. 12.
    See, A., Dissado, L. A., Fothergill, J. C., Electric field criteria for charge packet formation and movement in XLPE, IEEE Trans. on DEI, 2001, 8(6): 859–866.Google Scholar
  13. 13.
    Randnall, J. T., Wilkins, M. H. F., Phosphorescence and electron traps, Proceedings Roy. Soc., 1945, A184: 366–389.Google Scholar

Copyright information

© Science in China Press 2005

Authors and Affiliations

  • Zheng Feihu 
    • 1
  • Zhang Yewen 
    • 1
  • Gong Bin 
    • 1
  • Zhu Jianwei 
    • 1
  • Wu Changshun 
    • 2
  1. 1.Pohl Institute of Solid State PhysicsTongji UniversityShanghaiChina
  2. 2.China National Center for Quality Supervision and Test of Electric Ware and CableShanghaiChina

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