220kV罗文甲线#75塔架空地线UL环烧蚀缺陷情况分析  

Analysis on UL Ring Ablation of Overhead Grounding Wire on Tower No.75 of 220kV Luo-wen Line Ⅰ

作　　者：廖伟文[1] 张鸣[1] 周荣斌[1] 

机构地区：[1]广东电网公司佛山供电局

出　　处：《广东输电与变电技术》2009年第3期21-23,共3页Guangdong Power Transmission Technology

摘　　要：通过分析一起架空地线烧蚀的未遂故障,探讨了产生缺陷的原因主要是由于感应电流、雷击、微风振动和施工安装等引起的。最后,提出了防止该类型缺陷的预防措施。By analysis on a not accomplished fault of UL ring ablation on overhead grounding wire, the reasons of this defect is studied. It is caused by induced current, breeze vibration, lightning strike, or unproper installing. The preventive measure is proposed.

关 键 词：架空地线 雷击 感应电压 微风振动 

分 类 号：TM726.3[电气工程—电力系统及自动化]