公开(公告)号：EP3514899A1

公开(公告)日：2019-07-24

申请号：EP17850861.0

申请日：2017-09-12

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Energy Systems & Solutions Corporation

发明人： KUBO Katsutaka ,  MIZUTANI Manabu ,  FUKANO Takato ,  FUJIWARA Kaneharu ,  OKANARI Nobuaki

IPC分类号： H01T4/08 ,  H02B13/035 ,  H01C7/12

摘要： Provided is a lightning arrester capable of shortening the work time required when performing a withstand voltage test, and allowing the costs to be reduced. In this lightning arrester, a separation mechanism comprises a guiding conductor and a mobile rod, and switches a gap between a high-voltage side terminal portion and a high-voltage side electrode into an electrically connected state or disconnected state. The high-voltage side terminal portion has a recessed portion formed at an other-end side. The guiding conductor is electrically connected to the high-voltage side electrode inside the grounding tank, and has a guiding conductor through-hole formed in such a manner as to face the recessed portion on the high-voltage side terminal portion. The mobile rod is inserted in the guiding conductor through-hole, and is movable between one end side and the other-end side. When the disconnected state is to be reached, the separation mechanism moves the mobile rod to the other-end side, thereby bringing the gap between the mobile rod and the high-voltage side terminal portion into a separated state.