Abstract
In some substations and sectioning posts of Shinkansen power system in JR East area, the electrical transient phenomena when the Shinkansen train passes through the changeover section are reported during the last a few years. In this paper, the closing surge phenomena of the Shinkansen changeover section are elucidated based on both the detail measurement of the surge phenomena at substations and computer simulation. It is clarified that the surge propagation and the reflection at open end of the contact wire system cause the over-voltage at changeover section and result in the discharge of the lightning arresters at some substations.
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