DEVICE FOR DIAGNOSTICS OF CONDITION OF ELECTRIC RESISTANCE OF RAIL LINES IN RAIL TRACK CIRCUITS IN SECTIONS OF AC ELECTRIC TRACTION Russian patent published in 2014 - IPC B61L23/00 B61L25/06 

FIELD: instrumentation.

SUBSTANCE: invention relates to railway automatics and telemechanics. The device for diagnostics of condition of electric resistance of rail lines in rail track circuits in sections of railways with AC electric traction comprises a recorder, a summator, a voltage divider, a threshold element and an alarm unit. The device is additionally equipped with the second recorder, the second summator, the second voltage divider, one logical NOT element, one switching element, one communication line, four rectification elements, four comparison elements, four alarm units, five threshold elements, five logical OR elements and four measurement transformers.

EFFECT: solution is aimed at provision of automatic diagnostics.

2 dwg