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The fault mechanism of small current grounding system in single-phase grounding is discussed, and the principle of fault line selection of transient component on faulty phase current is indicated. By the design of hardware and software, it is proved the amplitudes summation of zero sequence transition current between fault line and healthy lines makes a big difference in the feature band. The analysis...
Through a small current grounding system of single-phase grounding to steady state and transient analysis and the existing line selection methods are analyzed and compared, their advantages and shortcomings can be gotten. The line of the selection method in the future was pointed out. The wavelet analysis was introduced to selection methods of faults and the fault lines can be selected in the wavelet...
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