| 摘要 |
<p>PURPOSE:To facilitate inspection and replacement of parts of a circuit-breaker by forming a working hole in the vicinity of a fixed side unit in a tank, and by inserting a fixed side conductor in a free sliding manner into a inserting hole formed in the fixed side unit, so as to connect both of them with one another. CONSTITUTION:In the vicinity of the upper part of a circuit-breaker 2 in a circuit-breaking tank 14, a manhole 20 is formed as a working hole, and it is covered with a lid. The circuit-breaker 2 is provided between a fixed side conductor 22 connected with a load bus 42 and a moving side conductor connected with a power source bus 41. The circuit-breaker 2 is composed of a fixed side unit 23 and a moving side unit 24. The fixed side unit 23 is composed of a connection fitting 25, a contact case 26, a fixing arcing contact 27, and so on. The connection fitting 25 is provided so as to connect the fixed side conductor 22 with the contact case 26, and has, in the upper part, an inserting hole 25a for inserting the fixed side conductor 22, which is inserted, in a free sliding manner, into the inserting hole 25a through a ring contact 29.</p> |
