| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the operability of a disconnector for lightning arrester and lessen the number of components and increase the reliability of a sealed section, in a gas-insulation electric equipment which has a plurality of lightning arresters. SOLUTION: A plurality of lightning arresters LA are fastened to one and the same installation stand 14. A disconnector for lightning arrester consists of fixed contactors 2 which are fixed to the container 21 side and movable contactors 4 which are installed at electrodes 7 formed at the heads of the lightning arresters. By operating a movable bar 5 from outside, the lightning arresters and the installation stand are moved and the disconnector for lightning arrester are opened or closed. By this method, the lightning arresters of multiple phases can be disconnected with one-time operation. What's more, a sealed section which supports the movable bar has only one sealing board 9, so the gas-sealing can be increased.</p> |
