Based on grille fractal and self-adaptive morphological filter, a novel approach to identify inrush current and internal fault current is presented.

提出了一种基于网格分形和自适应形态滤波器识别励磁涌流与内部故障电流的新方法。

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The simulation tests show that the new method can correctly judge the transformer's inrush current and internal fault without the harmonic effect, and it has a good reliability.

经仿真实验表明：该方案能准确地判别出变压器内部故障和励磁涌流，不受系统谐波影响，具有很高的可靠性。

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The simulation tests show that the new method can correctly judge the transformer's inrush current and internal fault without the harmonic effect, and it has a good reliability.

经仿真实验表明：该方案能准确地判别出变压器内部故障和励磁涌流，不受系统谐波影响，具有很高的可靠性。

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