| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive compound gas-insulated switching device capable of minimizing the expense necessary for replacement when one contact gets out of order, and also minimizing the time necessary for the replacement. SOLUTION: The device comprises two disconnectors 39 that house disconnector contacts 35, 36 in different insulated vessels 37, 38, and a breaker 43 that houses a disconnector contact 47 in one insulated vessel 42. Ends of the disconnectors 39, 40 and the breaker 43 are connected to the outside via external terminals 44, 45 and 46, and other ends are connected to a metal vessel 49. The lower side of the metal vessel 49 is supported by an insulated vessel 50 of which the one end has a ground potential. A mechanism box 41 that supports the ground potential side is connected to the insulated vessel 50. A ground device 56 having a fixed electrode 57 and a movable electrode 58 is arranged outside the insulated vessel 50.</p> |
