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High Voltage Engineering. 2014, (09) Core

Influence of Suspended Sand Particles on Potential and Electric Field Distribution Along Long Rod InsulatorChinese Full Text

ZHANG Youpeng;ZHAO Shanpeng;CHEN Zhidong;ZHOU Yu;DONG Haiyan;WANG Sihua;College of Automation ＆ Electrical Engineering,Lanzhou Jiaotong University;

Abstract: Suspended sand particles（SSPs） affect the surface potential and electric field distribution on insulators. To study this influence, we established a numerical model of a long rod ceramic insulator based on the finite element method（FEM） of electrostatic field, and calculated the potential and electric field distribution along the insulator under different SSP conditions. The results show that the geometry of the insulator influences the potential and electric field, which are distorted slightly by uncharged SSPs. The distortion will increase significantly if SSPs are charged with the same charge-to-mass ratio, while it is also greatly influenced by the quantity, diameter, charge-to-mass ratio, and charge polarity of SSPs. Moreover, the distortion above is greater than that of the potential and electric field strength induced by the hybrid particle swarm of charged and uncharged SSPs, as well as that by the hybrid particle swarm of positive and negative SSPs.
Keywords：

suspended sand particles; long rod insulator; static electric field; finite element method; potential distribution; electric field distribution;

  • DOI：

    10.13336/j.1003-6520.hve.2014.09.014

  • Series：

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  • Classification Code：

    TM216

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