Track Circuit Diagnostic

Purpose:

Track Circuit Diagnostic identifies problems in track circuit works and issues alerts to allow repair before influence on service. TCD provides wide range detection of track circuit equipment problems, rail head contamination, ballast or insulation faults and automations of maintenance.

Measurement Tools

Measurements in audio frequency track circuits

Diagnostic of insulation

Diagnostic equipment

Main functions

Our controllers perform the voltage measurement for track circuit in four points:

out of track generator;
entrance of track receiver;
on the relay coil;
out of track filter.

Controllers are situated on the relay rack of electric centralized offices, electric centralized modules and automatic block system. Solutions implemented for wide range of track circuit technologies: DC, AC, audio frequency.

The insulation resistance measurements are realized:

insulation resistance of cable conductors relative to the ground (24 galvanic uncoupled chains);
insulation resistance of 24 galvanic uncoupled chains relative to each other in all combinations.

Numbers of measuring channels - 24

Benefits:

Functional is proven with Russian Railways to reduce track circuit failures by up to 50%.
Reduction of the track circuit operating and maintenance costs.

Switch Condition Diagnostic

Purpose:

Switch Condition Diagnostic alerts appoint maintenance work to restore performance before service is disrupted. Performance of point machines is measured at every movement in real time and specialist algorithms are used to alert when normal operating characteristics are exceeded.

Measurement equipment:

ADC installed in PC for alternating and direct current measurements

Controller for alternating current switch point

Controller for direct current switch point

User interface:

Basic alarm window

Alternating current switch point

Direct current switch point

Main functions

Current oscillogram registration for direct current switch point.
Current and voltage oscillogram registration for alternating current switch point.
Calculating active power consumed by switch machine and switching force and hand shaft torque for alternating current switch machine.
Identification translatable switch point under information from control relay with measurements at group switch lines.
Switch current analysis for direct current switch machine through 7 parameters with automatic situation and accidents reports.

Benefits:

Functional Switch Condition Monitoring is proven with Russian Railways to reduce switch failures by up to 40%.
Basic Current & Timing system is totally non-invasive.

Signaling Power Diagnostic

Purpose:

Diagnostic the availability and quality of power supply to vital systems such as signaling, rail crossings and switches. Correlation of power information with other infrastructure monitoring data streams assists in the diagnosis of complex faults.

Measurement Tools:

Controller for alternating voltage and Earth Leakage measurements (frequency 25/50/75Hz)

Controller used for =24V/~24V and current measurements based on Hall effect

Battery parameters monitoring

User interface:

Diagnostic of additional measurements in the poser supply

Diagram of power supply voltages

Different couplings with external power supply systems

Main functions

Measures and trends key parameters such as voltage and current.
Captures intermittent failures or fluctuations.
Battery monitoring measures cell voltage, temperature, interior impedance and charging current.
Different couplings with external power supply systems and devices such as UPS and Diesel generator.
Ability to measure insulation resistance of 24 galvanic uncoupled chains relative to Earth.

Benefits:

Find and fix power problems before asset performance is affected.
Various facilities of couplings and monitoring different power supply systems and devices.

Rail Crossing Diagnostic

Purpose:

Rail Crossing Diagnostic allows record overall state for test and investigation to condition monitoring for predict maintenance. Comprehensive logical analysis of the monitored inputs, the system determines multiple performance indicators, such as warning time, barrier rise/fall time, equipment faults and road closure time.

Measurement Tools:

Controller for a wide range of current and voltage measuring

Current measurements sensor connected to data acquisition controller

Insulation resistance controller connected to main controller

User interface:

Diagnostic of additional measurements in the rail crossing

Specification of Rail Crossing conditions

Main functions

Fully isolated digital and analogue inputs.
Main controller collect and transmit data about rail crossing condition to the station devices through physical line for analysis and storage.
Ability to collect 16 digital inputs and measure voltages (24 analogue inputs), currents (up to 8 channels) and insulation resistance of 8 galvanic uncoupled chains relative to Earth.
Time domain measurements.

Benefits:

High data transmitting distance from main controller to the station (up to 30 km).
Noise immunity and wide temperature range -40 °C - +70 °C.
Ability to vary data sending through changing currents and insulation resistance channels quantity.