Power Systems
The original decision in former Yugoslavia was to use 3 kV DC electrification for the railway network. This was performed on the Rijeka–Zagreb line, which due to the mountainous Gorski kotar region had a need for more powerful trains than the traditional diesel powered ones.
Beginning with the modernisation of the Zagreb–Belgrade line an electrification system of 25 kV/50 Hz was used. Electrification on other lines in Croatia was then made exclusively 25 kV/50 Hz. Later, the majority of the Zagreb–Rijeka line was re-electrified to 25 kV/50 Hz, but there is still a part that is 3 kV DC. Consequentially a power system break still exists at Moravice. HŽ is now considering the purchase of dual-voltage locomotives, as an alternative to full re-electrification of 3 kV DC tracks.
All railway power systems in Croatia are exclusively of type overhead catenary.
Read more about this topic: Croatian Railways
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