The invention relates to electrically driven rolling stock (3,7), comprising at least one electric motor and a system (9) for receiving electric power from an electrical-supply line (11). Also provided is an emergency generator (13) and a system (49,25,27)...

A description is given of a power rectifier comprising an output (3, 5) for connection to a supply line (7A, 7B) leading to a load (Z), a cut-off device (9) being connected to said output to break the connection between said rectifier and said supply line....

A description is given of an emergency lighting unit comprising: a connection for a battery (5), an inverter (9) for supplying from said battery (5), in emergency conditions, a lamp (L) connectable to said unit; a control circuit (11) for the current suppl...

The emergency lighting unit comprises a connection for a battery (5), an inverter (9) for supplying, in emergency conditions, a discharge current from said battery (5) to a lamp (L) connectable to said unit, and a battery charger (7). Means are also provid...