Effect of low temperature on tree characteristics in silicone rubber with different power frequency

  title={Effect of low temperature on tree characteristics in silicone rubber with different power frequency},
  author={B. X. Du and Tao Han and Jingang Su},
  journal={IEEE Transactions on Dielectrics and Electrical Insulation},
Electrical tree is one of the main reasons for long-term degradation of SiR cable accessories used in high voltage ac applications. In this paper, an investigation of electrical tree growth characteristics in SiR samples is reported. Ac voltage with frequency ranging from 50 to 200 Hz was applied between a pair of needle-plate electrodes to initiate electrical trees at temperature ranging from 30 to -100 °C. Both the tree structures and growth characteristics have been observed by using a… CONTINUE READING
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