电工技术学报2018，Vol.33Issue(5)：1143-1150,8.DOI:10.19595/j.cnki.1000-6753.tces.170079
低气压下长间隙交直流放电特性研究
Research of AC and DC Discharge Characteristics of Long Gap under Low Pressure
摘要
Abstract
To research the characteristics of AC and DC discharges under low pressure condition, this paper carried out laboratory investigations of AC and DC discharges by self-manufactured test chamber for 200-600 mm rod-plane gaps within 0.5-60 kPa. The relationship between discharge voltage U and pressure P of different voltage modes are obtained,and the characteristics of U-P curves as well as their reasons are analyzed. The results show that, the U-P curves of AC, positive DC and negative DC discharges have significant differences. Within 2-4 kPa under DC voltage, a reversal of polarity effect occurred, and the magnitude of discharge voltage under positive and negative DC voltage changed from UDC(-)<UDC(+)toUDC(+)<UDC(-)with the increase of pressure value.The ionized layer formed on the surface of plane electrode when P≤2 kPa is the cause of the reversion of polarity effect. The U-P curves of AC discharge has saturation region due to the continuous partial streamer discharges within specific pressure range. These results have reference value for the study of long gap discharge under low pressure.关键词
低气压/交直流放电/空间电荷/极性效应/饱和特性Key words
Low pressure/AC and DC discharge/space charge/polarity effect/saturation characteristic分类
信息技术与安全科学引用本文复制引用
杨亚奇,李卫国,夏喻,袁创业..低气压下长间隙交直流放电特性研究[J].电工技术学报,2018,33(5):1143-1150,8.基金项目
国家自然科学基金项目资助(51277063). （51277063）
