变压器故障检测方法的改进--模糊识别阈值原则法

三比值法是目前被普遍接受的判断变压器故障的有效方法，但这一方法仍存在一个不确定的模糊范围，文中根据变压器故障分解气体的相对比率，运用模糊识别阈值原则判断变压器的故障性质，获得了理想的结果。

APPLICATION OF THRESHOLD PRINCIPLE TO THE DETECTION OF TRANSFORMER FAULTS

Three ratio method is generally accepted as an effective method for the detection of transformer faults at present.but a small undefined region still exists. According to the relative ratio of the dissolving gas in transformer faults. the paper applies the threshold principle of fuzzy identification to solve this problem. A number of results of applying this method to the fault detection show that this method is more accurate.