| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas-insulated apparatus whose insulation performance is not deteriorated by the application of a lightning impulse even if a surface of an insulating spacer is charged after a switching impulse is applied or a DC voltage is applied. SOLUTION: Perpendiculars (shown in the figure as broken lines 44 and 45) are dropped from ends 42 and 43 of conductor joints 40 and 41 on the sides of insulating spacers 20 and 21 to center axes of conductors 30, 31, and 32. Buried electrodes 50 and 51 are embedded in the flange parts 22 and 23 of the insulating spacers 20 and 21. The conductor joints 40 and 41 are provided at positions where the perpendiculars 44 and 45 are not closer to the concave surfaces of the insulating spacers 20 and 21 than the ends 52 and 53 of the embedded electrodes 50 and 51 on the sides closer to the convex surface side flange surfaces 24 and 25 of the insulating spacers 20 and 21. With such a constitution, the deterioration of a dielectric strength caused by the application of a lightning impulse can be avoided without the influence of charges on the insulating spacers charged by the application of a switching impulse.</p> |
