TRACK CIRCUIT PROTECTION DEVICE

摘要

FIELD: railway automatics, signaling and communication. SUBSTANCE: proposed invention is designed for use in track circuits at stations and block sections. Device has rail line, matching devices and track relay with repeaters. General and auxiliary delay relay are double-winding slow-acting relays. First windings of each relay are connected directly to supply source, and second windings are connected through own contacts and contact of track relay repeater. Winding of main repeater of track relay is connected to supply source through third front contact of general delay relay. EFFECT: provision of checking of supply continuity, protection of pulse noise. 1 dwg