1. Department of Electronics and Information Technology, Lublin University of Technology, Nadbystrzycka 38D, 20-618 Lublin, Poland
2. Department of Forecasting the Electric Power Complex Development, General Energy Institute of NAS of Ukraine, Antonovich St. 172, 03057 Kyiv, Ukraine
3. Department of Monitoring and Diagnostic of Energy Objects, General Energy Institute of NAS of Ukraine, Antonovich St. 172, 03057 Kyiv, Ukraine
4. Department of Electronic and Photonic Metrology, Wrocław University of Technology, ul. B. Prusa 53/55, 50-317 Wrocław, Poland