空气密度和湿度对导线电晕特性的影响

Influence of Air Density and Humidity on the Corona Performance of Conductor

本文针对高海拔地区超高压输电线路设计的需要,详细地研究了空气湿度和密度对导线电晕起始场强的影响,同时对导线电晕起始的测量方法及不同分裂数目下导线起晕场强的一致性进行了理论分析和试验验证。本文还讨论了无线电干扰水平受大气条件的影响。

In high altitude area, conductor selection for high voltage transmission line is based on corona performance. This paper studies. the influence of air density and humidity on the corona performance of single conductor under artificial weather condition. The experiment results show both air density and humidity clearly affect the corona inception field and the effect of humidity increases with reducing of air density. This mechanism is investigated in the paper. This paper also presents part results to show that corona inception field is independent of the number of subconductors. In the end, the characteristics of radio interference under different air density and humidity are studied through experiments performed on single conductor.