Evaluation of Contamination Characteristics of DC Two Staged Porcelain Type Surge Arresters

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  • 二段積酸化亜鉛形避雷器の直流耐汚損特性の評価
  • 2ダンズミ サンカ アエンガタ ヒライキ ノ チョクリュウ タイ オソン トク

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There is a few data of contamination characteristics of HVDC porcelain type surge arresters. Therefore, this paper describes contamination withstand characteristics of DC 250kV porcelain type surge arresters with special sheds and nominal sheds. Uniform pollution and non uniform pollution (partial wetting) slurry methods have been applied to contamination evaluations. This DC 250kV porcelain type surge arrester with special sheds can withstand on slurry pollution tests at equivalent salt deposit density 0.01-0.03mg/cm2.

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