| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively utilize space in a panel by integrating a lightning arrester and a line-side isolator at a receiving end of an upper or lower stage where a leading terminal is provided for accommodation, and accommodating one portion of the line-side isolator projecting from a receiving part in the isolator part by utilizing the empty space of the isolator part at a middle level. SOLUTION: A main circuit panel 14 is devided into upper, middle, and lower stages where an insulation gas is sealed, a receiving part 1 of the upper stage where a cable head 15 is mounted accommodates an isolator 21 and a lightning arrester 22 at an upper side, and an isolator 16 is integrated into the lightning arrester 22 at the middle stage for accommodation. Also, although the isolator 16 is minimized as much as possible, it partially projects toward the empty space of the isolator part 2 at the middle stage due to the limitation of the space of the receiving part 1. Then, the isolator part 2 accommodates a ground switch 17 and a gas circuit breaker 18, and one portion of the isolator 16 is accommodated in empty space at the upper side. Furthermore, a bus connection part 3 at the lower stage accommodates an isolator 19 and a bus 20, thus effectively utilizing the inside of the panel.</p> |
