Boughazala, MohamedCheriet, ABen Attous, D2023-04-302023-04-302016-03-06BoughazalaMohamed,S. Cheriet,A. Ben Attous, D. Investigation of PLC for logic Selectivity Communication in Protection Systems. International Journal of Energetica. Vo2. No 01.30/06/2017.faculty of technology. university of el oued. [visited in ../../….]. available from [copy the link here]2543-3717http://dspace.univ-eloued.dz/handle/123456789/20991Article ArticleThis paper reports an investigation of power line communication technique PLC for logic selectivity in protection systems. A simulation of power grid with two protection systems using PLC as communication process is performed by Simulink/Matlab program. Also, the attenuation characteristic of high frequency PLC signal is studied regards to resistance, inductance and frequency variationenPower line communication PLC, Logic selectivity, Protection, Coupler, AttenuationArticle