| 摘要 |
A system, method, and apparatus for power transmission fault zone detection. Each phase of a three-phase current in the power system is monitored, a modal component is determined from the three-phase current, high frequency transients in the modal component are extracted using wavelet packet transformation, and a travelling wave front is detected in the modal component indicating the fault. A wave sign is determined and the signs of two travelling waves are logically combined to determine whether or not the fault is within a protected zone.
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