| 摘要 |
<p>A metal-encapsulated, gas-insulated switching installation (1) has a switching-chamber housing (4) and a cable-connecting housing (16) which is connected to the switching-chamber housing (4). Located between the two housings (4, 16) is a supporting insulator (14) which is provided with through-openings (22) for the insulating gas. Furthermore, a channel (24) is provided which starts in the cable-connecting housing (16) close to a connecting body (19) for the cable conductor (18) and which opens, after being deflected approximately through a right angle, in the switching-chamber housing (4). The channel (24) is effective in the case of interfering arcs in the cable-connecting housing (16) and favours extinguishing of the interfering arc (21) or moving it into the larger switching-chamber housing (4) which is provided with a device (23) for pressure relief. The described switching installation (1) is particularly suitable for the medium-voltage range up to 36 kV. <IMAGE></p> |
