New Surge Counter for the ZnO Surge Arrester in Traction Power Supply Systems of High Speed Railway

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  • 新幹線き電用避雷器の多頻度動作と新しい動作カウンターの提案
  • シンカンセンキデンヨウヒライキ ノ タヒンド ドウサ ト アタラシイ ドウサ カウンター ノ テイアン

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Abstract

<p>In the changeover section of high speed railway, the frequent operation of surge arresters has been observed. In our previous study, it was confirmed that such frequent discharges by the changeover switchgears do not deteriorate the arresters. However, occasionally the surge arrester could develop troubles. Therefore, we developed a new surge counter to measure not only the amount of total discharge current, but also the resistive current of the leakage current in order to find out the deterioration trends of the surge arrester. In this paper, the history of our research related to the development of the new surge counter is reviewed.</p>

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