Experimental study and analysis of breakdown characteristics of long air gaps with short tail lightning impulse

This paper describes experimental study and analysis of breakdown characteristics of long au gaps with short tail lightning mpulse, which appears across the mulator s a g s on the transmission lme by a lightnmg stroke At first, startmg conditions of leader propagation and leader developmg process with the short tail lightnmg mpulse are clarlfied by experiments A new flashover model based on the expermental results IS proposed in this paper The proposed model conslsts of smple two equations, that give expression to the leader developmg process, and can be realtzed very easily on the EMTP and other transientʹs programs A comparison of results calculated by the proposed model with the expermental results shows good agreements