|
|||||
|
|
| 某220kV架空线路雷击三塔三相故障跳闸分析 | |
| 引用本文： | 杨静,王剑,许竞,李雨. 某220kV架空线路雷击三塔三相故障跳闸分析[J]. 华北电力技术, 2011, 0(6): 47-50 |
| 作者姓名： | 杨静 王剑 许竞 李雨 |
| 作者单位： | 1. 华北电网有限公司,北京,100053 2. 秦皇岛电力公司,河北秦皇岛,066000 3. 华北电力科学研究院有限责任公司,北京,100045 |
| 摘 要： | 针对一起220 kV架空线路雷击三塔三相故障跳闸事故,在考虑现有防雷措施、杆塔形式、绝缘子形式及配置的基础上,通过对地理环境、设备防雷措施、雷电机理过程等方面进行分析,得出事故是由于罕见的具有类似短波头特征的雷电造成雷击杆塔三相跳闸并引起两座相邻杆塔绝缘子雷击闪络破损.提出了进一步明确地区雷电活动的波形特征并开展针对性... |
| 关 键 词： | 架空线路 雷击跳闸 并联间隙 防雷措施 |
Analysis on a Lightning-stroke Caused 3 Towers and 3 Phase Fault of 220 kV Overhead Line |
|
| Yang Jing,Wang Jian,Xu Jing,Li Yu. Analysis on a Lightning-stroke Caused 3 Towers and 3 Phase Fault of 220 kV Overhead Line[J]. North China Electric Power, 2011, 0(6): 47-50 | |
| Authors: | Yang Jing Wang Jian Xu Jing Li Yu |
| Affiliation: | 1.North China Grid Company Limited,Beijing 100053,China;2.Qinhuangdao Electric Power Company,Qinhuangdao 066000,China;3.North China Electric Power Research Institute Co.Ltd.,Beijing 100086,China) |
| Abstract: | For a rare lightning-stroke which caused 3 towers and 3 phase fault of 220 kV overhead line,considering lightning protection,tower type,insulator type and configuration in existence,conclusions were made that the fault was caused by a rare lightning which had shortwave character and led to the damage of insulators beside the main flashover tower by analysis on geographical environment and lightning mechanism.Main focus was put on shortwave lightning and the precaution measure for electrical equipment operation. |
| Keywords: | overhead line lightning-stroke parallel gap lightning protection |
| 本文献已被 维普 万方数据 等数据库收录！ | |