ELECTRIC POWER SUPPLY SYSTEM OF ELECTRIFIED AC RAILWAYS Russian patent published in 2012 - IPC B60M3/00 

FIELD: transport.

SUBSTANCE: invention relates to electrified railways. Proposed system comprises AC traction substations, switchgears, catenary sections, rail circuits, section pillar made up sections of first and second buses, bus switch and single-pole feeder switches, and traction loads. Traction substations are interconnected via switchgears and catenary sections connected via feeder switches to bus first and second sections interconnected via bus switch. One output of traction loads is connected to rail circuits while their another output is connected to catenary sections. Three-pole bus switch features series interconnection of poles. Pure diverter is connected in parallel to one pole of bus switch set to sequential operation of poles in disconnection starting from pole with pure diverter and ending by poles without pure diverters, and, on the contrary, in connection, set to sequential operation of poles starting from pole without pure diverter and ending by poles with pure diverters.

EFFECT: longer life of section pillar bus switch.

1 dwg