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  1. Identifying internal fault from magnetizing conditions in power transformer using the cascaded implementation of wavelet transform and empirical mode decomposition
  2. Efficient method for discrimination between inrush current and internal faults in power transformers based on the non-saturation zone
  3. Method to secure the performance of the differential protection in presence of fault current limiter applied into the neutral line
  4. Discrimination between internal fault and magnetising inrush currents of power transformers in the presence of a superconducting fault current limiter applied to the neutral point