Assessment of transmission network voltage unbalance in connection of high-speed electrical railway connectionKilter, Jako; Sarnet, Tanel; Kangro, TriinPQ2014 : the 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ) : June 11-13, 2014, Rakvere, Estonia : proceedings2014 / p. 329-334 : ill Modelling of high-speed electrical railway system for transmission network voltage quality analysis : Rail Baltic case studyKilter, Jako; Sarnet, Tanel; Kangro, TriinPQ2014 : the 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ) : June 11-13, 2014, Rakvere, Estonia : proceedings2014 / p. 323-328 : ill