CHEN Kui, SUN Chang-qing, ZHANG Li, TANG Yi. Single-phase Grounding Protection Based on Transient Component Analysis[J]. Journal of Mine Automation, 2009, 35(12): 60-64.
Citation: CHEN Kui, SUN Chang-qing, ZHANG Li, TANG Yi. Single-phase Grounding Protection Based on Transient Component Analysis[J]. Journal of Mine Automation, 2009, 35(12): 60-64.

Single-phase Grounding Protection Based on Transient Component Analysis

  • Using wavelet analysis to realize single-phase grounding protection is easy to produce misjudgement and missed sanction and the method using magnitude and direction of transient component to realize single-phase protection needs calculate frequency and phase of transient component accurately.To solve above problems,the paper proposed a single-phase grounding protection method that needs not zero-sequence voltage transient component and needs not calculate frequency and phase of transient component combing with lots of experiment data of simulated arcing fault of 6 kV power networks and analyzed implementation principle of the method in details.The experiment result showed that the method has simple calculation,no filtering and higher accuracy.
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