1. Regional Innovational Center for Electrical Engineering, University of West Bohemia, Faculty of Electrical Engineering,Pilsen,Czech Republic
2. Kharkiv Petro Vasylenko National Technical University of Agriculture,Department of Power Supply and Energy management,Kharkiv,Ukraine
3. National Technical University, “Kharkiv Polytechnic Institute”,Department of Transmission of Electric Energy,Kharkiv,Ukraine
4. Faculty of Mechanical Engineering, University of West Bohemia,Department of Power System Engineering,Pilsen,Czech Republic
5. Vinnitsa National Technical University,Department of Electrical Stations and Systems,Vinnitsa,Ukraine