变压器油中发散电场作用下液体运动对击穿电压的影响

10th International Conference on Conduction and Breakdown in Dielectric Liquids Pub Date : 1990-09-10 DOI:10.1109/ICDL.1990.202911

R. Hanaoka, R. Ishibashi, T. Aoyagi, Y. Asada, T. Nishi

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引用次数: 2

摘要

测量了变压器油在发散电场作用下的传导电流和液体运动，阐明了极性对直流击穿电压的影响。考虑液体运动，计算了击穿附近的电场和空间电荷密度分布。推导出平面电极前的场增强导致了击穿的发生，并证明了负尖电极的击穿电压远高于正尖电极的击穿电压。

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Effect of liquid motion on breakdown voltage under divergent electric fields in transformer oil

Conduction current and liquid motion under divergent electric fields in transformer oil were measured, and the effect of polarity on the DC breakdown voltage was clarified. Electric field and space charge density distributions near the breakdown were computed, taking the liquid motion into account. It was deduced that the breakdown occurred due to the field enhancement in front of the plane electrode, and it was demonstrated that the breakdown voltage in the case of the negative sharp electrode was much higher than in the case of the positive one.<>

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10th International Conference on Conduction and Breakdown in Dielectric Liquids

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