ELECTRIC TWO-FREQUENCY LOCOMOTIVE, MODEL 181.2 - 1,2

The electric railroad service on the segment Saarbruecken- Trier-Koblenz, West Germany, was extended in 1974 to the French and Luxemburg border. Since the West German railroad system operates at 16 2/3 Hz, 15 kv while the systems in the neighboring countries operate at 50 Hz, 25 kv it was necessary to develop appropriate locomotives in order to close the gap. The development of 25 locomotives meeting this requirement is reported. The mechanical and electric equipment is described.