摘要
加装线路避雷器是适用面广、防止雷害、提高线路耐雷水平的最有效方式之一,传统避雷器配置方式未考虑实际杆塔结构特点和地形因素下的防雷效果和经济性问题,存在一定的盲目性。为研究线路避雷器的优化配置方案,基于ATP-EMTP软件与电气几何模型建立了适合多种杆塔结构的耐雷性能分析模型,研究了杆塔结构、地形地貌等对反击和绕击耐雷性能的影响,对杆塔在不同避雷器配置方式下的防雷效果和技术经济性进行了综合分析,提出了技术经济指标较优的配置方案:导线水平排列的单回杆塔建议在左右边相加装避雷器;双回杆塔建议综合考虑杆塔保护角、反击和绕击耐雷性能、地形地貌等因素选择技术经济最优配置方式。
Traditional arrester configuration scheme ignores the influences of tower structure and terrain on anti-lightning effect and economy. Based on the simulation software ATP-EMTP and the electric geometry method, an anti-lightning property simulation model for different tower structures is constructed to study optimal configuration of surge arresters on transmission line tower. The influences of tower structure and terrain on anti- lightning performance are discussed. The anti-llghtning effects and technical economy of tower with different configurations of surge arresters are analyzed synthetically. Thus, an optimal configuration scheme of surge arresters is proposed, i.e. for single-circuit tower, additional surge arresters are installed at both left and right sides; and for double-circuit tower, the tower protection angle, the anti-lightning properties for reverse stroke and round stroke, the terrain, and the technical economy should be considered synthetically to make an optimal configuration scheme.
出处
《高压电器》
CAS
CSCD
北大核心
2013年第2期61-66,共6页
High Voltage Apparatus
关键词
线路避雷器
防雷效果
技术经济性
优化配置
line surge arresters
anti-lightning effects
technical economy
optimal configuration
