Mechanisms of charge-induced surface discharge under positive impulse voltages
Yixuan Li,
Boya Zhang,
Xinmiao Zhou
et al.
Abstract:Charge-induced surface flashover is a critical factor leading to insulation failures in high-voltage direct current (HVDC) gas-insulated equipment, and the underlying mechanisms are still unclear. In the present study, the impact of charge polarity and position on surface discharge characteristics in ambient air are studied, and the surface charge dynamics during multiple discharge process are also focused. The results indicate that the repulsive effect of deposited positive charges significantly inhibits the … Show more
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