This paper describes the characteristic analysis of lightning overvoltage in underground transmission cables using EMTP. Simulations were carried out to analyze the generation characteristics of overvoltage according to kinds, lengths and thickness of...
This paper describes the characteristic analysis of lightning overvoltage in underground transmission cables using EMTP. Simulations were carried out to analyze the generation characteristics of overvoltage according to kinds, lengths and thickness of cable, lighting currents penetrated into cable. Model system for simulation was formulated as overhead-underground-overhead system. The results obtained by simulations will be used as the basic data for the insulation design and location of lightning arrester of underground transmission cable system.