Comparison of Numerical Analysis Models for Shielding Failure of Teansmission Lines
The shielding failure is the occurrence of a lightning stroke that bypasses the overhead shielding wires and strikes on the phase conductors.The accurate design to improve the shielding effect of transmission line to lightning is one of key problems in transmission line design.Some numerical analysis models for analysis of shielding failure performance were proposed and discussed, mainly including the traditional electrogeometric model (EGM) and improved EGM, the leader progression model (LPM).The paper compares the results of lightning current range and location region for shielding failure by numerical calculation applying the three models.The influence of ground slope angle and voltage class of transmission line is also taken into account.
EGM shielding failure LPM
Xi Wang Jinliang He Xiangyang Peng Zhifeng Li
Dept.of Electrical Engineering,Tsinghua UniversityState Key Lab of Power SystemsBeijing,P.R.C Guangdong Electric Power Research InstituteGuangdong Electric Power Research InstituteGuangzhou,Chin Guangdong Electric Power Research Institute Guangdong Electric Power Research Institute Guangzhou,Ch
国际会议
成都
英文
1-5
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）