Device for safe identification of track section freedom and running-trough of train

摘要

In the present invention, there is disclosed a device for safe identification of track section freedom and running-trough of train comprising a voltage and current transducer (3) that is connected by means of two conductors and via a transformer (4) provided with protection elements to railroad lines (8), whereby said transducer (3) input branch is connected a working frequency generator (1) being controlled by a regulator (2) of generated signal amplitude and a generated signal amplifier while in the output branch said voltage and current transducer (3) is connected to an analog-to-digital converter. Said analog-to-digital converter outputs are transmitted to a computer (5) controlling by its commands said regulator (2) and computing states of the device and communicating with an associated device via an input/output interface (6). The trackage (8) rail circuit is connected to a dynamic current limiter (9) with a processor and a current limiter.