Abstract: An arrangement (1) for limiting the short-circuit current in a three-phase electric power line connected with one or more motors/generators (2) in which in each power line phase (3) leading to the generator/motor (2) at least one pair of series switches (4) are disposed, which are formed by semiconductor switch elements connected in anti-parallel, and in the section between the series switches (4) and the generator/motor (2) elements such as short-circuiting switches (6) are disposed which in case of a short-circuit cause the current of the generator (2) to be shunted away such that the operation of the series switches (4) is assured and the current cannot get into the power line. With the very simple structure of the system, very fast switching times are achieved.