| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem, wherein a height of a switchgear becomes high when equipment constituting the switchgear is arranged superimposing above and below, in order to reduce an installation area of the switchgear. <P>SOLUTION: Among cases superposed on three stages, upper, middle and lower stages, and sealed with insulating gas airtightly, a busbar is fitted to an outside of a backface of a middle-stage case. First and second three-position disconnecting switches are held in the middle-stage case. A first breaker, connected to the busbar through the first three-position disconnecting switch, is held in the upper-stage case. A first insulating bushing is fitted to the backface of the upper-stage case to connect to the first breaker, then a first outside line cable is connected to the first insulating bushing; while a second breaker connected to the busbar through the second three-position disconnecting switch is held in the lower-stage case; and a second insulating bushing is fitted to a backface of the lower-stage case for connecting to the second breaker, then a second outside line cable is connected to the second insulating bushing. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
