電界最適化シミュレーションおよび電界最適化電極の絶縁破壊特性の実験的検証(<論文特集>電気機器・電子素子における最適設計・逆解析)

概要

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In this paper, we developed an electric field optimization technique to calculate an optimum electrode contour on which a uniform field distribution and a reduced maximum field strength can be obtained. In order to confirm to what extent the electric field optimization can improve the insulation performance under various kinds of conditions, experimental investigation was carried out ; several measurements of breakdown voltage in air and SF_6 gas with the optimized electrode were made. Experimental results revealed the difference in insulation characteristics of the optimized electrode in air and SF_6 gas. We discussed these results from the viewpoint of the physical mechanisms of breakdown. Consequently, we pointed out that combining these experimental investigation with the electric field optimization would lead to a new and a useful technique for the practical optimum insulation design of power apparatus.
日本シミュレーション学会の論文
1999-03-15