The ground feed for an electric rail vehicle has conductor segments (16A-D) which are insulated from each other and which are contacted by a slide shoe (32) for current feed to the vehicle. High voltage feeds are connected to each conductor segment and swi...

A simulator (11) equipped with at least one microprocessor (14) addresses simulation input signals (E) to the unit under test (1) and receives output signals (S) from it in reaction. The method consists in processing, as they are emitted, certain (S) outpu...