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机构地区:[1]华北电力科学研究院有限责任公司,北京市西城区100045 [2]华北电网有限公司,北京市宣武区100053
出 处:《电网技术》2009年第20期173-176,共4页Power System Technology
摘 要:结合华北电网雷电定位监测系统的应用情况,介绍了其在输电线路防雷中的作用,明确了线路跳闸的主要原因及故障位置,分析了雷电活动规律,对具体线路细化,确定了防雷工作需重点注意的易击线路以及线路的易击段。通过对这些重点区域防雷配置的合理优化可以有效地降低雷击跳闸率,为系统安全稳定运行提供了保证。Based on the application of lightning location and monitoring system in North China Power Grid, the action of this system in prevention of lightning faults of transmission lines is presented; the principal causes of line trip and fault positions are clarified and the law of lightning activity is found out; by means of detailed analysis on concrete transmission lines, in the prevention of lightning faults special attentions are paid to the transmission lines and line sections, where lightning strike often occurs, and these lines and sections are determined. Thus, optimal configuration of lightning protection devices in these key regions can decrease lightning strike-caused trip-out rate of transmission lines and improve security and stability of power grid.
分 类 号:TM852[电气工程—高电压与绝缘技术]
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