多高压电极系统电晕放电的研究

The Study of Corona Discharge Characteristic of Multi-High Voltage Electrode System

研究了多高压电极的放电特性现象。结果表明,由于各高压电极间受电场相互屏蔽作用的影响,使电晕放电通道的光学图形发生了向电极外侧偏移,同时各高压电极间距处在一定范围内可提高电晕放电起始电压。还利用分割电极的方法测量了平面电极上的电流密度,其极大值点可相应向外侧偏移,在负极性放电时在一定条件下能产生正流注放电。

The corona discharge characteristic of multi-high voltage electrode vs. plane is studied. The results show that because of the mutual shield effect among high voltage electrodes, the area of corona discharge was moved to the outside of protrude electrode, and this effect can inerase the corona onset voltage. The current density in plane was measured by dividing the plane electrode. The limit point of maximum current density is changed as same as the area of corona discharge. It was discovered that positive steamer discharge occures when negative corona discharge occures. The explaination of this phenomenon is presented in the paper.