The mechanism of the electric flashover of high voltage insulators

 Insulator Flashover

One of the main reasons for flashover of high voltage insulators is the contamination deposited on the insulator surface

These particles are of natural origin or may be generated by pollution that often results from industrial, agricultural or construction activities. When the line insulators are contaminated, many insulator flashes occur during light fog unless the bending rings protect the insulators or special fog-type insulators are used 

Changes in channel position of contaminated flashover 


The mechanism of the electric flashover of the insulator










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