| 摘要 |
<p>PURPOSE:To lower a ceiling and to reduce an installation area by letting a bus bar connected to a primary bus bar at a longer distance from a gas-blast circuit-breaker pass outside of a room when installing the gas-blast circuit- breaker near the primary bus bars installed parallel to each other in the room. CONSTITUTION:Primary bus bars 4 and 5 are so laid on supporting stands 2 and 3 installed on the floor face of a room inside a house respectively as to be parallel to each other to be made doubly structured. Near the primary bus bars 4 and 5, a gas-blast circuit-breaker 20 is installed with its gates 21 and 22 crossed at right angles with the primary bus bars 4 and 5. The primary bus bar 5 nearer to the gas-blast circuit-breaker 20 is connected to the gate 21 through a primary bus bar disconnector 13, a connection bus bar 14 and a CT 10. The farther primary bus bar 4 is connected with a connecting primary bus bar 30 which, coming out from the gate 22, passes outside of the room 1 through a CT 9 and a primary bus bar disconnector 11 (The connecting primary bus bar 30 passes above a ceiling in a figure, however it can be made to pass under the floor).</p> |
