| 摘要 |
<p>A circuit breaker having one pole per phase, wherein each pole includes a feed-through insulator (10) containing a vacuum chamber (14) to which a metal tube (25) is mechanically and electrically connected, said metal tube containing a control rod (30) for controlling the vacuum chamber. The feed-through insulators of each pole are attached to a single hollow beam (4) containing a common pole control shaft (38) connected to a control mechanism.</p> |
