基于负序损耗比率的变压器故障诊断

Transformer fault diagnosis based on relative losses of negative sequence power

本文利用变压器本身的负序损耗功率,计算运行中负序损耗功率增加量的相对比率,在变压器故障诊断中引入一种新的特征判据,即负序损耗比率。通过理论的推导证明了本方法应用变压器故障诊断的合理性,最后通过实例说明本方法是切实可行的。

With the own losses of negative sequence power of transformers,this paper introduces a new characteristics of transformer fault diagnosis based on the relative ratio losses of the negative sequence power. Through theoretical study,it is demonstrated that the application of this method to transformer fault diagnosis is reasonable and feasible through examples.