Arrangement for the power supply of alternating current loads of equal to - or alternating voltage networks of different voltage and / or frequency

摘要

The device uses passive elements to adapt a train to the electrical system of a different country. D.c. mains voltage is applied directly and a.c. mains voltage after rectification and smoothing to two d.c. controllers (15, 16) with a transformer (19). When a d.c. voltage is relatively high, they are connected in series, and in parallel when it is otherwise. Smoothing inductances (13, 14) are allocated to both d.c. controllers (15, 16) and are designed to balance ignition differences when the d.c. mains voltage is high. The voltage is stepped down in the ratios 3:1 or 5:1 for railway use.