SWITCH FOR THE RUNNING OF TWO ELECTRICAL MACHINES POWERED BY A MOTOR OR BY A SERIAL OR PARALLEL INDUCED RECOVERY GENERATOR

摘要

System enabling two d.c. machines to change over rapidly from operation as series wound motors to operation as independently excited generators regenerating to a main power supply. The system mainly comprises a four-pole changeover and disconnecting switch which connects inductors in series either with their respective armature or with an auxiliary power supply, and four diodes shunted by four contactors. Of use in electric driving vehicles and locomotives for regenerative braking to the main power supply.