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电网技术  2012 

应用矩量法的变电站内工频电磁场计算及实测

, PP. 189-194

Keywords: 变电站,矩量法,电磁环境,工频电场,工频磁感应强度,限值

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Abstract:

本文首先着重介绍了矩量法(MOM)的计算原理,推导相应的计算公式,然后利用该方法对佛山市110kV桂城变电站110kV配电区的电磁环境进行了相应的计算,并于现场实测进行了对比,结果表明,该方法能够精确计算变电站内电磁场。接着给出了佛山其他110kV—500kV变电站现场测量数据,有的变电站内部分区域的工频电场强度和磁感应强度超过其限值。为此,分析了变电站内架空线路高度、间距、线径和大地电阻率对电磁场分布的影响,以供相关人士参考。

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