高电压技术2018，Vol.44Issue(2)：548-553,6.DOI:10.13336/j.1003-6520.hve.20180131027
雾水电导率对交流输电线路电晕放电量的影响
Influence of Impurity Water Conductivity on Corona Discharge Quantity of AC Transmission Line
摘要
Abstract
The influence of fog water conductivity on conductor corona discharge quantity is seldomly studied.In order to understand the conductor corona characteristics,we adopted the ultraviolet imager,partial discharge detector,ultrasonic atomizer,and oscilloscope to conduct experiments in a corona cage.By applying pulse current method,we studied the influence of electric field intensity,fog water conductivity,and conductor roughness on conductor corona discharge quantity and corona discharge characteristics.Study results show that when water droplet emerges on the conductor surface,the fog water conductivity will have a significant influence on corona discharge quantity,the corona discharge quantity will increase with the growth of fog water conductivity when subjected to the same electric field intensity;and the corona discharge quantity will grow with the electric field intensity,but the discharge quantity tends to be saturated when the electric field intensity reaches a certain threshold value;in addition,the discharge quantity is related to the conductor roughness closely,the harsher of the conductor surface,the bigger of the conductor corona discharge quantity is.It is recommended that the effect of fog conductivity should be taken into consideration when studying the wire corona discharge quantity in fog.关键词
电晕/交流输电导线/电场强度/雾水电导率/粗糙度/放电量Key words
corona/AC transmission line/electric field intensity/conductivity of fog water/roughness/discharge quantity引用本文复制引用
彭华东,伍炜卫,胡琴,李永福,何高辉,胡可..雾水电导率对交流输电线路电晕放电量的影响[J].高电压技术,2018,44(2):548-553,6.基金项目
国网重庆市电力公司科技项目(SGCQDK00PJJS1600049) （SGCQDK00PJJS1600049）
国家自然科学基金(51321063).Project supported by Science and Technology Project of State Grid Chongqing Electric Power Company (SGCQDK00PJJS1600049),National Natural Science Foundation of China (51321063). （51321063）
