基于EGM的山区爬坡线路绕击跳闸率计算  

Calculation of Shielding Failure Trip-out Rate for Transmission Lines Climbing Hillside in Mountain Areas

作　　者：康琛[1] 苏红梅[2] 梁贵书[1] 刘晓冬[2] 

机构地区：[1]华北电力大学,河北保定071003 [2]河北省电力公司电力科学研究院,石家庄050021

出　　处：《河北电力技术》2012年第6期9-11,共3页Hebei Electric Power

摘　　要：针对山区架空输电线路翻越山坡时,线路的平均高度和保护角均发生变化的情况,对山坡倾角与线路平均高度、山坡倾角与保护角的关系进行分析,提出山区爬坡线路绕击率计算方法,并通过实例分析验证了该方法的可行性。The average height of transmission lines and the angle of protection can be changed in the caculation of shiel- ding failure tripping rate as transmission lines climb hillside in mountain areas. The relationship among the slope angle, the average height of transmission lines and the angle of pro- tection is analysed. The calculation of shielding failure trip- ping rate about mountain climbing line is proposed and it is feasible through an example analysis.

关 键 词：电气几何模型 雷击 绕击跳闸率 暴露距离 平均高 度 保护角 

分 类 号：TM726[电气工程—电力系统及自动化]