Circuit arrangement for a high voltage current richter with two antiparallel polarity, in some areas, parallel-connected thyristor stacking

摘要

A high voltage rectifier comprises two thyristor stacks (7, 8) connected in parallel through cross-connections and poled in parallel opposition section by section. In order that the ignition energy for the individual thyristors (1 to 6), driven by means of optical conductors from earth potential, can be coupled out from the thyristor power circuit, transformers (9, 10, 11) are arranged at their primary sides in cross-connections between the thyristor stacks (7, 8). in each thyristor stack (7, 8), the thyristors are directed in terms of polarity one opposite the other section by section so that the load current flows in meander shape through the double stack and thereby by way of the cross- connections. IMAGE