DRIVE SYSTEM FOR A RAIL VEHICLE WITH A PRIMARY TRANSFORMER-SIDE SHORT-CIRCUIT PROTECTION DEVICE

摘要

The invention relates to a drive system (1) for a rail vehicle (2), the drive system (1) comprising a current collector (8), a transformer (3), a network-side converter (4) with semiconductors (41) and a short-circuit protection device (5). wherein the short-circuit protection device (5) is arranged between the current collector (8) and a primary side (32) of the transformer (3), the short-circuit protection device (5) comprising at least one semiconductor element (51) for switching off a current through the primary side (32). of the transformer (3), wherein the semiconductors (41) of the network-side converter (4) comprise silicon carbide or gallium nitrite. Furthermore, the invention relates to a rail vehicle (2) with such a drive system (1), wherein the rail vehicle (2) is designed for operation on a catenary (7) with alternating voltage. The invention further relates to a method for protecting such a drive system (1) or such a rail vehicle (2), wherein in the event of an error by means of the short-circuit protection device (5), a short-circuit current through the semiconductors (41) of the power converter (4) is switched off.