Dianci bileiqi, 1992 对于金属氧化物避雷器运行情况的监视主要靠测量泄漏电流.常用的方法有测量全电流、直流测量阻性电流及泄漏电流的谐波分析.本文提出对泄漏电流进行谐波分析的新方法,采用外偿法把系统电压的谐波产生的三次谐波电流消除,以得到仅由避雷器产生的三次电流谐波.然后再确定阻性电流的三次谐波与总的阻性电流的关系.采用电场测量法间接求得容性三次谐波电流.电位及电流信号输入微处理机处理和显示各种参数,与直流测量法相比,其误差在20～25%之间.
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Se PuZhang Y +6 more
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Sheng Wu Yi Xue Gong Cheng Xue Za ZhiChen X, Xu G.
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Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiNational Health Commission Of The People's Republic Of China.
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Dianci bileiqi, 2011 专利申请号:CN200510112296.7公开号:CN1991395申请日:2005.12.29公开日:2007.07.04申请人:上海电气集团股份有限公司本发明公开了一种监测避雷器泄漏电流中阻性电流的方法,有下列步骤:采集流过避雷器的泄漏全电流;将泄漏全电流分解成阻性电流和容性电流;将该两种电流进行放大至mA级 ...
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Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYuan Y, Zhang Z, Xie L, Huang H, Liu W.
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Se PuWu JY, Huang XJ.
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