DEVICE TO PREVENT SUPPLY OF POWER FROM WORKING SECTION OF TROLLEYS TO DE-ENERGIZED SECTION THROUGH MOVABLE CONSUMER CURRENT COLLECTOR Russian patent published in 1995 - IPC

FIELD: movable power consumers. SUBSTANCE: when movable consumer 2 approaches from side of working section of trolleys 5 to section under repair and distance between movable consumer 2 and insulated clearance of adjacent section of trolleys 6 under repair becomes equal to braking distance of movable consumer 2, control unit of brake mechanism 14 will receive signal from field pickup 13 and will pick up the signal by its antenna if no field is set up by electric circuit 10. Voltage to electric circuit 10 is supplied through circuit of trolley section state pickups 19, 20. Movable consumer will stop before insulated clearance of adjacent trolley 6, thus preventing supply of power to de-energized section of trolleys 6 and ensuring safety of attending personnel. Preliminary signal from of one of settings of field pickup is transmitted to driver of movable consumer 2. Thanks to it driver will be able to stop movable consumer 2 by means of set of controls before automatic stopping of movable consumer. EFFECT: enhanced reliability of operation and safety of attending personnel. 3 dwg