The railway automation and telemechanics power supply system ensures the electrical supply of signaling, centralization, and interlocking (SCB) devices, along with other station equipment.

Composition

• The ATS is designed for the input and distribution of three-phase voltage 3N ~380V 50Hz from two feeders and a backup diesel generator set (DGS). It ensures guaranteed power supply to the Converter cabinet and Switchboard 1 by automatically switching loads between the two feeders and activating the DGS in case of power parameter deviations or sudden loss of voltage in the main feeder.
• The Converter cabinet and Battery cabinet work together to provide uninterrupted power supply to the 25Hz Converter cabinet and the Switchboard and Switchboard 1 in case of a sudden voltage drop or complete loss of input power from the guaranteed power supply bus of the ATS.
• The Switchboard is designed to distribute three-phase AC voltage 3N ~380V 50Hz from the uninterruptible power supply (UPS) bus, which is provided by the Converter cabinet. It also generates galvanically isolated output power poles for railway signaling and interlocking (SCB) equipment.
• The 25Hz Converter cabinet is designed to distribute three-phase AC power (3N~380V, 50Hz) from the UPS busbar provided by the Converter cabinet, and to generate and distribute both 220V 25Hz AC voltage and 110V 25Hz AC voltage with a 90-degree phase lead on the first pole.
• The Switchboard 1 is designed to distribute three-phase AC voltage (3N ~380V, 50Hz) from the secured power busbar provided by the ATS, as well as three-phase AC voltage (3N ~380V, 50Hz) from the UPS (uninterruptible power supply) busbar provided by the Converter cabinet, and to generate galvanically isolated output power poles for signaling and interlocking equipment (SCB).
• EPO button (Emergency Power Off)
•    The diagnostic system consists of a server-side component and a user interface, enabling data transmission to remote high-level workstations.
• The local diagnostic workstation is implemented as a touchscreen panel mounted on the door of the ATS, allowing for real-time monitoring and troubleshooting of the power supply system.

• Input and Distribution of three-phase voltage (3N ~380V, 50Hz) from two three-phase AC feeders and a backup diesel generator set (DGS).
• Manual Load Transfer between feeders, with feeder disconnection capability for maintenance and repair of the ATS.
• Automatic load transfer from one feeder to another in case of power loss, phase sequence fault, or voltage deviation beyond permissible limits in any phase of the active feeder, as well as automatic load transfer to backup power from the DGS in case of power loss, phase sequence fault, or voltage deviation beyond permissible limits in any phase of both feeders.
• Automatic load transfer from the DGS back to the feeder upon voltage restoration, with a time delay of at least 3 minutes.
• Monitoring of voltage presence, magnitude, and phase sequence for Feeders 1 and 2.
• DGS Start Signal issuance.
• Uninterrupted power supply to the loads from battery banks for at least 15 minutes in case of voltage loss at the power supply system input.
• Protection Against Surges (lightning, switching, and impulse overvoltages).
• Emergency Power Shutdown for the power supply system.
• Status Indication of independent trip devices for all switchgear within the power supply system.
• Remote monitoring and control of key power supply system parameters via standard data exchange protocols.
• Visual display of the status of switching devices in all racks of the power supply system.
• Measurement of phase voltages, currents, and power consumption in both feeders.
• Distribution of three-phase AC voltage (3N ~380V, 50Hz) from the uninterruptible power supply (UPS) busbar.
• Distribution of three-phase AC voltage (3N ~380V, 50Hz) from the guaranteed power supply busbar.
• Generation and distribution of 220V AC, 25Hz and 110V AC, 25Hz with 90° phase advance of the first pole voltage.
• Generation and distribution of 12V DC voltage.
• Generation and distribution of 24V DC voltage.
• Generation and distribution of 220V DC voltage.
• Galvanic isolation of loads.
• Maintaining a constant optimal temperature inside the Converter cabinet, Battery cabinet, and Switchboards.
• Internal lighting for all Switchboards and Racks of the power supply system.

The power supply system is the first domestically developed system to successfully complete trial operation and be approved for use on the Belarusian Railway.

The system has been deployed at 50 stations of the Belarusian Railway, 16 stations in the Republic of Kazakhstan.

Certification

• Certificate of Compliance with the Technical Regulations of the Customs Union No. ЕАЭС BY/112 02.01.020 08640 “On the Safety of Low-Voltage Equipment” (TR CU 004/2011).
• Certificate of Compliance “Electromagnetic Compatibility of Technical Equipment” TR CU 020/2011.
• Serial production in accordance with technical specifications ЕИРВ.565336.001 ТУ.