| 摘要 |
<p>PROBLEM TO BE SOLVED: To omit a bus line and a structure, by providing the second connecting tube extending into the crossing direction from the first connecting tube in the longitudinal direction of a breaker chamber, and the third bushing which connects the second breaker provided at the tip of the second connecting tube of the second drawing circuit. SOLUTION: A connecting tube 22 extending to the right side from a connecting tube 21 is linked. The connecting tube 22 is elongated to the outsisde by crossing the provided place of each breaker chamber in W phase. To the tip of this connecting pipe 22, a third bushing 3 is connected. A first bushing 1U is connected to one end side of a breaker chamber 11. Second and third bushings 2U and 3U are connected to connecting tubes 17 and 22, which are drawn out to foward and backward, respectively. That is to say, the second and third bushings 2U and 3U are provided at the parts, which are drawn out in the direction crossing at a right angle to the right and left with respect to the longitudinal direction of the breaker chamber 11.</p> |
