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交流输电线路距地震观测台站的最小距离
引用本文:齐磊,崔翔,吴燕.交流输电线路距地震观测台站的最小距离[J].高电压技术,2010,36(3):649-654.
作者姓名:齐磊  崔翔  吴燕
作者单位:华北电力大学高电压与电磁兼容北京市重点实验室,北京,102206
摘    要:GB/T 19531.2-2004中明确规定了地电场和地电阻率观测时允许的工频骚扰电场强度指标,并给出了500 kV及以下交流输电线路距地电场和地电阻率测量极的最小允许距离。然而,随着输电线路电压等级的提高,标准中规定的最小距离已不适用750 kV和1000 kV超特高压交流输电线路。为此,利用拟蒙特卡罗数值积分方法计算了在输电线路两侧由线路工作电流激发的工频电场,将计算结果分别与地电场和地电阻率观测时允许的工频骚扰电场强度进行比较,得到了不同电压等级、不同塔型的交流输电线路不同土壤电阻率、典型工作电流下距地电场和地电阻率测量极的最小允许距离。计算结果表明:500 kV及以下交流输电线路距地电场和地电阻率测量极的最小允许距离与GB/T 19531.2-2004中的推荐值基本一致,而750、1000 kV交流输电线路距地电场和地电阻率测量极的最小允许距离要求更为严格,且受土壤电阻率的影响较大。

关 键 词:交流输电线路  地震台站  电磁观测  地电场  地磁场  地电阻率

Minimum Distance Between AC Transmission Line and Seismic Observation Station
QI Lei , CUI Xiang , WU Yan.Minimum Distance Between AC Transmission Line and Seismic Observation Station[J].High Voltage Engineering,2010,36(3):649-654.
Authors:QI Lei  CUI Xiang  WU Yan
Affiliation:Beijing Key Laboratory of High Voltage & EMC;North China Electric Power University;Beijing 102206;China
Abstract:The power frequency electric field generated by the transmission line currents was calculated by the quasi-Monte Carlo integration method.Compared with the control values of power frequency electric field,the minimum distances between the AC transmission lines and seismic observation stations were obtained under the typical operating current for different voltage level,different tower structure and different earth resistivity.The simulated results show that:(1) the minimum distances for the AC transmission ...
Keywords:AC transmission line  seismic station  electromagnetic observation  geoelectric field  geomagnetic field  geoelectrical resistivity  
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