CONTACT SYSTEM SECTIONALIZING STATION (VERSIONS) Russian patent published in 1999 - IPC

FIELD: transport engineering; power supply systems of electric vehicles. SUBSTANCE: closed unit of sectionalizing station in all three design versions can be made unified for sectionalizing DC and ac contact systems and warmed. High-voltage auxiliary equipment and controls including current sensors, current direction detection unit, setting unit and actuating unit are mounted in compartments of sectionalizing station unit. Sectionalizing station can be made up of one, two or more butt-joined portable warmed modules with three-layer protective structure. Outer surface of structure is made of strong corrosion-resistant material, and inner surface, connected with outer surface through head insulating rigid ties, is made of decorative anticorrosive material with space between surfaces being filled with heat insulating material and external communication lines inlet and outlet holes sealed. EFFECT: enhanced reliability of operation, convenience in use and increased economy. 7 cl