Three ratio method 三比值法
three-band photographic ratio method 三波段相片比值法
three-channel ratio weighted method 三通道比值加权法
The problem of three-ratio method in transformer fault diagnosis is low veracity,beacuse the fault of power transformer has the features of fuzziness and variety.
由于电力变压器故障的模糊性和多样性,目前利用IEC三比值法在变压器故障诊断中存在准确率不高之难题。
参考来源 - 基于混合pi·2,447,543篇论文数据，部分数据来源于NoteExpress
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