Distribution of dust particles on insulator surface
CHEN Qing
WANG Guozhi
Abstract：In order to study the particle size distribution of the dust particles on the insulator surface, the ZS (W) -35KV/6-8 insulator was used as the object of study.The DEM-CFD coupling method was used to simulate the dynamic fouling process of the insulator surface.The discrete element method was used to analyze the insulator distribution of dust particles on each surface of the process.The results show that the accumulation of insulator on the windward side is more serious than that of the leeward.The plot is mainly concentrated in the three parts of the surface and the umbrella transition area (umbrella rod) and the depression area of the lower surface of the umbrella skirt.The number of dirt particles sticking on insulator surface also increases with the extension of time, but the sticking rate remains unchanged basically.For different size of insulators, there is more dust particles sticking on insulator surface that has bead at lower surface, the bead can increase the surface area and increase the disturbance of the fluid, it is more available for deposition of the dust particles.
Keywords：solid core post insulatorDEM-CFD methodsdynamic contaminationparticle distribution
Publication Date：2019-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 46-51 )