The Distribution of the Discharge Current from a Local Discharge on an Electrolytic Solution and the Solution Surface

电解溶液和溶液表面局部放电的放电电流分布

• 批准号: 11650287
• 负责人: MATSUO Hisao
• 金额: $ 2.3万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650287/
• 关键词: wet polluted surface; surface discharge; insulator; electrolytic solution

An electrolytic solution surface was used to simulate the surface of wet polluted insulators. A local discharge propagates on the solution surface when the voltage is applied to the surface. The electrical contact between the local discharge on the electrolytic solution and the solution surface was examined. The distribution of the current from the local discharge to the solution is estimated from the potential distribution measured with the probes placed in the solution. The resistivity of the solution is varied from about 80 to 370Ω cm. The impulse voltages of 2/80 μs, 10/800 μs and 100/2500 μs are used as the applied voltage. The peak value of the applied voltage was 1.05 to 1.4 times the 50% flashover voltage V_<50> under each set of experimental conditions. As a result, it is found that most of the discharge current flows from the tip part of the local discharge, and the current from the local discharge column is considerably low. Further, the distribution of the current from the local discharge to the solution is found to be hardly influenced by the resistivity of the solution, the peak value of the applied voltage or the applied voltage waveform.

使用电解溶液表面来模拟湿污染绝缘子的表面。当电压施加到表面时，局部放电会在溶液表面传播。检查电解液上的局部放电与溶液表面之间的电接触。从局部放电到溶液的电流分布是根据放置在溶液中的探针测量的电势分布来估计的。溶液的电阻率变化范围为约 80 至 370Ω·cm。施加电压采用2/80μs、10/800μs、100/2500μs的脉冲电压。在各组实验条件下，施加电压的峰值为50％闪络电压V_<50>的1.05至1.4倍。结果发现，大部分放电电流从局部放电的尖端部分流出，并且来自局部放电柱的电流相当低。此外，发现从局部放电到溶液的电流分布几乎不受溶液的电阻率、施加电压的峰值或施加电压波形的影响。

项目成果

Tomoaki Yoshimura: "The Distribution of the Discharge Current from a Local Discharge on an Electrolytic Solution and the Solution Surface"Proceedings of 2000 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering. 302-1-302-4 (20

Tomoaki Yoshimura：“电解溶液和溶液表面局部放电的放电电流分布”2000年韩日放电和高电压工程联合研讨会论文集。

Weidong Shi: "Electrical Contact between a Local Discharge on an Electrolytic Solution and the Solution Surface"Proceedings of 1999 Japan-Korea Joint Symposium on Electrical Discharge and High Voltage Engineering. 53-56 (1999)

史卫东：“电解液局部放电与溶液表面的电接触”1999年日韩放电与高电压工程联合研讨会论文集。

Tomoaki Yoshimura: "The Distribution of the Discharge Current from a Local Discharge on an Electrolytic Solution and the Solution Surface"Proceedings of 2000 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering. 302-1-302-4

Tomoaki Yoshimura：“电解溶液和溶液表面局部放电的放电电流分布”2000年韩日放电和高电压工程联合研讨会论文集。

Hisao Matsuo: "Electrical Contact between a Local Discharge on an Electrolytic Solution and the Solution Surface"IEEE Transactions on Dielectrics and Electrical Insulation. 7. 360-365 (2000)

Hisao Matsuo：“电解溶液上的局部放电与溶液表面之间的电接触”IEEE 电介质和电气绝缘汇刊。

Hisao Matsuo: "Electrical Contact between a Local Discharge on an Electrolytic Solution and the Solution Surface"IEEE Transactions on Dielectrics and Electrical Insulation. Vol.7. 360-365 (2000)

Hisao Matsuo：“电解溶液上的局部放电与溶液表面之间的电接触”IEEE 电介质和电气绝缘汇刊。