This paper presents result application of line surge arresters on the compact transmission lines 110kV in Viet Nam. The results study are based on the geometric model (EGM) method and EMTP simulation software. The number of lightning strikes to the compact transmission lines and standard line is calculated and compared. Different line surge arrester installation configurations are considered. Line lightning performance is computed for different tower footing resistance. Line performance before and after line surge arrester installation are compared. Line lightning performance of the single and double circuits compact transmission lines combined with line surge arresters are compared with the performance of the standard line without line surge arresters.

Keywords: Compact transmission line, line surge arresters, EMTP/ATP simulation.