便携式杆塔冲击接地电阻测量仪研究
Water Resources and Power(2011)
Abstract
针对目前尚无适合于现场测量杆塔冲击接地电阻的仪器,基于冲击接地电阻测量理论,研制了一台便携式杆塔冲击接地电阻测量仪,可采用波头较缓、幅值较低的冲击电流作入射波测得接地体的电压响应,再应用数学变换法获得高幅值标准雷电流下杆塔的冲击接地电阻。仿真计算和现场实测验证结果表明,该仪器抗干扰能力强,已具备工程应用雏形。
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Key words
lightning current,portable,impulse grounding resistance,tower ground network,mathematical transformation,measuring instrument
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