| 摘要 |
<p>PROBLEM TO BE SOLVED: To form a closed type gas insulated three-phase switchgear, in such a way that the switchgear can be used for low levels (73-145 kV) in a high- voltage division and can be assembled easily, and in addition, the space required by the switchgear can be reduced as much as possible. SOLUTION: In a closed-type gas insulated three-phase switchgear, all switchgear constituting equipment, such as current terminals, a circuit breaker 4, a coupled disconnecting and grounding switch 6, buses 8, etc., are successively arranged in the axial direction A of a cylindrical metallic container 2 in the common gas space of the container 2. Within the extents of the buses 8, the container 2 shifts to a cylindrical body 21, extending in the direction perpendicular to the container 2, and the body 21 is provided with flanges for fixing isolated insulators 9 which supports the buses 8 on both sides.</p> |
