[4] L. Cesky, F. Janicek, J. Kubica, and F. Skudrik, “Overheating of Primary and Secondary Coils of Voltage Instrument Transformers”, 18 th International Scientific Conference on Electric Power Engineering (EPE), Kouty nad Desnou, 2017, pp. 1–6, ISBN: 978-1-5090-6405-2.10.1109/EPE.2017.7967359
[5] DIN 42600-8:2013-10 Messwandler für 50 Hz, Um 0,72 kV bis 52 kV - Teil 8: Stützer-Stromwandler 12 kV und Um = 24 kV – Schmale Bauform, Hauptmasse, Innenraumausführung, Berlin, 2013, 5p.
[6] M. Patocka, Magnetické jevy a obvody ve výkonové elektronice, měřicí technice a silnoproudé elektrotechnice, University of Technology Brno, 2011, (in Czech).