摘要
根据人工气候室内的试验结果,分析了覆冰量、覆冰水电导率及覆冰状态对 10 kV 合成绝缘子交流冰闪电压的影响,提出了合成绝缘子的冰闪过程。研究结果表明:由于冰凌桥接裙间空气间隙,短接爬电路径,其冰闪电压将明显降低;在覆冰状态下,间歇性局部电弧烧伤表面,从而使其憎水性难以完全恢复性丧失。这是合成绝缘子冰闪电压降低的主要原因之一。
According to the test results carried in the artificial climate chamber, this paper analyzes the flashover process and the effects of ice amount, icing water conductivity and ice-covering appearance on AC flashover performance of l0 kV composite insulator The test results show that because icic1es bridge the air gaps between the sheds, the ice flashover voltage will decrease, and that because intermittent partial arcs between ice and insulator's surface burn, the unrecoverable comedown of hydrophobicity of silicon rubber material of the insulator surface cause the reduce of the flashover.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第8期58-61,共4页
Proceedings of the CSEE
基金
国家自然科学基金项目(50007008)。~~
