矿区高压供电线路防雷耐雷技术的研究
Industry and Mine Automation(2010)
Abstract
建立了矿区LD-Ⅱ雷电监测与定位系统用以分析兖矿集团矿区地面落雷密度、雷电流的极性、幅值、落雷时间等雷电参数以及落雷点的位置,研究了矿井高压线路及周边地区雷电分布规律;采用数学方法对该矿区电网3种典型杆塔和线路的雷击进行了模拟计算;在统计分析和数学计算基础上,提出了提高矿区电网防雷耐雷能力的措施,即降低杆塔接地电阻,采取调爬、加装避雷器等措施。实际应用结果表明,上述方法可行。
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Key words
power supply of coal mine,lightning resistance,lightning positioning,lightning protection,lightning monitoring,high-voltage
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