Research and Analysis on Evolution of Arc Morphology in Vacuum Arc Extinguishing Chambers
The evolution of arc morphology in a vacuum arc extinguishing chamber not only affects the changes in various physical fields inside the chamber,but also affects the service life of the vacuum arc extinguishing chamber.In order to accurately divide the evolution stages of arc morphology within a switching cycle and describe the characteristics of arc morphology in each stage,the image processing technology of Labview platform is used to denoise and enhance the edges of the arc images collected by high-speed cameras.Pixel statistical technology is combined to calculate the coordinate information of the upper and lower edge pixels of the arc and calculate the arc diameter,Using threshold segmentation technology to extract arc texture features and counting the number of pixels in the arc image.This article uses the Labview virtual instrument platform and image processing technology to preprocess the arc image,perform pixel statistics,and calculate the arc diameter.Threshold segmentation technology is used to extract the texture features of the arc,and the arc evolution stage is divided based on the diameter changes and texture features of the arc.
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