| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable to use N2 gas or the like in place of SF6 gas in a tank containing an isolating switch. SOLUTION: An insolating switch 3a is contained in a bus bar tank 1a sealing N2 gas, an epoxy mold 31 is fitted so as to surround a space between a fixed- side contact 22 and a movable-side contact 25 with the insolating switch 3a in an open state, and insulating oil 32 is filled inside the epoxy mold 31.</p> |
