| Title |
Analysis of Lightning Overvoltage on the Underground Power Cable at the Striking of Lightning Surge to the Combined Transmission Line |
| Authors |
김남열(Kim, Nam-Yeol) ; 이종범(Lee, Jong-Beom) ; 장성환(Jang, Seong-Hwan) ; 강지원(Gang, Ji-Won) |
| Keywords |
Leading-in ; Combined power transmission line ; Arrester ; Travelling wave |
| Abstract |
In the analysis of lightning surges, transmission towers are usually simulated by ATPDraw. The modeling of transmission towers is an essential part of the traveling wave analysis of lightning surges in transmission lines. The tower model is applied to the 154kV transmission tower of which surge performance characteristics are measured Tower surge response is computed using nonuniform, single-phase line models for both transmission tower and ground wire. The overvoltage will effect to the underground transmission line. The underground cable is combined by duct and trefoil type, and the each arrester is placed on the leading-in tube and outgoing tube. This paper analyzed the effect of lightning overvoltage on the underground cable system. |