| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide reduction in overall length, a smaller installation area resulting from it, and cost reduction, and improve reliability and working efficiency in maintenance and inspection by making a grounding switch for inspection disposed on a line side face a disconnector for bus. SOLUTION: A disconnect switch 4 for bus is connected to the connecting part at the lower part of a vertical type breaker 1 through an instrument transformer 8, and connected to a main bus 2. A switch 6 for breaker inspection on bus side is connected in a horizontal direction of the disconnector 4 for bus. On the other hand, a disconnect switch 10 for line is connected to the connection part at the upper part of the vertical type breaker 1 through an instrument transformer 9, and a grounding switch 11 for line and a cable head 12 are connected to its front sequentially in a horizontal direction. A grounding switch 7 for breaker inspection on line side is connected to the lower part of the disconnector 10 for line, and disposed so as to face the disconnector 4 therefore, it is possible to reduce overall length by a space in the horizontal direction which is required to dispose the grounding switch 7 for inspection on line side.</p> |
