Lightning Backflash Performance for ±500kV Double Circuit Transmission Lines

被引：0
|
作者：
Lu, Hailiang [1 ]
Wen, Xishan [1 ]
Zhang, Chengwei [1 ]
Tong, Xuefang [2 ]
机构：
[1] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China
[2] SGCC, Wuhan High Voltage Res Inst, Lightning Protect Res Div, Wuhan, Peoples R China
来源：
2009 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), VOLS 1-7 | 2009年
关键词：
flashover; HVDC; double circut line; backflash; lightning performance; ATP; OVERHEAD LINES; VOLTAGES;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Adopting +/-500kV HVDC double circuit transmission lines to transmit power can both economize line corridor and add unit corridor aera transmission capacity, so +/-500kV HVDC double circuit transmission lines are more and more adopted. Because the length of double circuit transmission lines is high, it is more likely to be attacked by lightning stroke, so lightning performance for double circuit transmission lines is studied in this paper. Applying ATP can calculate backflashvoer withstand levle when the datas like tower height, polarity configuration modes, soil resistivity and grounding resistance are changed. In the calculation, the insulators' behavior is judged by comparing the insulators' volt-time curves to the overvoltage, the system voltage and the induced voltage's influence on lightning withstanding level is considered.
引用
收藏
页码：3535 / +
页数：2
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