Abstract Ultrahigh-voltage transmission lines operating experience at home and abroad show that the main cause of the uhv transmission line tripping accidents is struck by lightning, with the higher voltage class, the probability of tripping accidents caused by lightning strike increased. This paper based on the 1000kV transmission line as the research object, simulate and analyze detour lightning trip-out rate of four different classic Single tower back. Besides, Through the use of the electromagnetic transient calculation program ATP-EMTP and simulating of back striking, this paper Research and analysis ray propagation in a circuit of four towers.
2014, Vol. 15 
