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RSS FeedsEnergies, Vol. 12, Pages 3190: Novel Earth Fault Protection Algorithm Based on MV Cable Screen Zero Sequence Current Filter (Energies)

 
 

20 august 2019 18:02:38

 
Energies, Vol. 12, Pages 3190: Novel Earth Fault Protection Algorithm Based on MV Cable Screen Zero Sequence Current Filter (Energies)
 


This paper presents novel zero sequence current filter and earth fault protection relay, which utilize cable screens earthing current in protection algorithm. Different problems connected with state of the art of zero sequence current filters and protection relays are presented and compared with the proposed solution. The presented concept is verified in PowerFactory simulation software, experiment concerning modeling the earth fault current flow in medium voltage (MV) cable supplied from the low voltage (LV) network and measurements in the MV network in the Polish distribution system. The proposed solution is characterized by higher sensitivity and reduced number of erroneous trips. The presented solution is suitable for any MV cable lines. Biggest advantages are observed in power output lines from renewable energy sources, which are often operated under no-load conditions.


 
202 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 12, Pages 3191: Impact of Electrical Topology, Capacity Factor and Line Length on Economic Performance of Offshore Wind Investments (Energies)
Energies, Vol. 12, Pages 3189: Electromechanical Analysis of the Medium Voltage Earthing Switch due to Short-Time and Peak Withstand Current Test (Energies)
 
 
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