不同均压环对220kV复合绝缘子覆冰及其闪络特性的影响
For the voltage grade of 110kV and above, all of composite insulators adopt the grading ring to improve the high potential gradient at the surface of two end fittings. Besides, the grading ring can play a major role in drawing the arc and preventing the corona discharge at the end fittings. Since difference grading rings can bring about different improvements of potential and electric field distribution along the composite insulator, which may then influence the icing characteristics and flashover performance. Therefore, in order to illustrate the effect of different grading rings, the energized wet-grown ice accumulation tests of 220kV composite insulator with different grading rings at the HV end are carried out in the art ficial climate chamber in this paper. Combining with numerical simulation, the ice appearance, density, weight and minimum flashover voltage are fully analyzed.
高压电力系统 复合绝缘子 覆冰状态 闪络特性 均压环
Qin Hu Shijing Wang Lichun Shu Xingliang Jiang Zhi Wu Wei Yuan
State Key Laboratory of Power Transmission Equipment & System security and New Technology School of Electrical Engineering Chongqing University, Chongqing 400044, China
国内会议
西安
中文
323-324
2013-10-17（万方平台首次上网日期，不代表论文的发表时间）