| 摘要 |
<p>According to one embodiment, a tank-type vacuum circuit breaker includes a tank, a vacuum valve provided in the tank, 5 an insulating layer provided on an outer circumference of the vacuum valve, having a fixed side interface connecting portion and a movable side interface connecting portion, a grounding layer provided on an outer circumference of the insulating layer, a fixed side bushing having an interface connecting 10 portion connected to the fixed side interface connecting portion, a fixed side porcelain tube to house the fixed side bushing, a movable side bushing having an interface connecting portion connected to the movable side interface connecting portion, a movable side porcelain tube to house the movable 15 side bushing, and insulation gas filled in the tank, at an approximately atmospheric pressure.</p> |
