考虑空气湿度的导线交流电晕起始场强特性  

AC Corona Inception Field Strength Characteristic of Conductors Considering Air Humidity

作　　者：陈迪[1] 刘宸 李强 王雪焕 段娜娜 申萌 王诗喆 赵倩 CHEN Di;LIU Chen;LI Qiang;WANG Xuehuan;DUAN Nana;SHEN Meng;WANG Shizhe;ZHAO Qian(China National Accreditation Service for Conformity Assessment,Beijing 100062;Xi’an High Voltage Apparatus Research Institute Co.,Ltd.,Xi’an 710077,China;Xi’an Jiaotong University,Xi’an 710049)

机构地区：[1]中国合格评定国家认可中心,北京100062 [2]西安高压电器研究院股份有限公司,西安710077 [3]西安交通大学,西安710049

出　　处：《高压电器》2022年第10期83-88,95,共7页High Voltage Apparatus

摘　　要：大气条件是影响导线或电力金具表面电晕的重要因素,电晕同时会产生无线电干扰噪声。目前暂无导线电晕相关的试验标准,电力金具的相关试验标准只规定了空气密度修正,并未指出湿度对导线电晕或无线电干扰电压的影响。文中在人工气候室利用电晕笼实验研究了不同空气湿度下导线的起晕电压,同时在电晕起始场强的计算中考虑了湿度的影响,得到了含湿度修正的电晕起始场强计算公式。分析了不同尺寸的导线起晕场强,可为今后相关实验及工程应用提供参考。Atmospheric conditions are important factors affecting the corona of conductor or electric fitting surface and the corona can,at the same time,cause radio interference noise. At present,there is lack of test standard which is related to the corona of conductor. While,the related test standard of electrical fitting does not point out the influence of humidity on the conductor corona or radio interference voltage,but only specifies air density correction. In this paper,the corona inception voltage of conductor under different air humidity is studied by corona cage experiments in the artificial climate chamber and,at the same time,the influence of humidity is considered in the calculation of inception field strength of the corona,and the calculation formula of the corona inception field strength containing humidity correction is obtained. The inception corona field strength of different sizes of conductors is analyzed,which can provide reference for relevant experiments and engineering applications in the future.

关 键 词：电晕 空气湿度 人工气候室 电晕起始电压 

分 类 号：TM75[电气工程—电力系统及自动化]