Abstract:Partial discharge (PD) in oil-paper insulation of transformer is considered to be a serious fault condition. The movement of excessive charge over pressboard may result in mechanical and chemical damage to material through thermal and electronic action. With the development of PD, gases, white marks and tracks appeared. To research the relationship among the gases white marks and carbonized tracks, a needle-plate electrode configuration was set in laboratory. Pressboards with grooves of varying depths were mad… Show more
“…Some of the important methods were listed in the table 1. Innovative work was reported [85] of pressboard surface grooved by depth of 1.5 mm and its PD performances. It aimed for the understandings of carbonized tracks and white marks formation.…”
“…Some of the important methods were listed in the table 1. Innovative work was reported [85] of pressboard surface grooved by depth of 1.5 mm and its PD performances. It aimed for the understandings of carbonized tracks and white marks formation.…”
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