BUSSINESS 01

Railway Signalling Systems

The railway signalling business includes the installation and management of railway signalling systems to ensure the safety of railway operation. It plays an important role for the safety of trains and people. It also enables efficient operation of railways and supports the safety and stable operation of railway traffic.

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    Power Supply for Signal
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    Rectifier for signal
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    Rectifier for communication
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    Integrated Modular Impulse Track Circuit Device
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    High Voltage Impulse Track Circuit Device
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    Integrated power supply (smart switcher)

Systems for internal-station

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Power Supply for Signal

Provide reliable power to each railway signal control facility to ensure the safety of the train operation.

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Product Description
The power supply for railway signals is a device that supplies stable power to signal control facilities by use.
Product Features
  • 01
    Being classified into Electronic Interlocking System (EIS) and Relay Interlocking System (RIS) according to its purpose
  • 02
    Designed with commercial power supply (NET1) and standby power supply (NET2), when commercial power supply (NET1) is disconnected, it automatically cuts to standby power supply (NET2) to ensure stable power supply

Systems for internal-station

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Rectifier for signal

It rectifies the AC current to DC current to provide a constant voltage and continuously supplies stable power with the automatic cutoff function to improve train stability.

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Product Description
A signal floating rectifier is a device that receives input voltage AC 110[V]/220[V] and rectifies it with DC voltage and is connected in parallel to the storage battery to supply a certain voltage to the load and automatically performs floating and even charging of the storage battery.
Product Features
  • 01
    Rectifying to a stable DC voltage to supply power
  • 02
    Consistent, reliable power supply with automatic power cut

Systems for internal-station

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Rectifier for communication

Increase the stability of train operation by supplying stable power to various communication equipment.

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Product Description
Rectifier for Communication provides high-quality and stable power to communication equipment by completely eliminating power failures such as power outages, instantaneous power outages, instantaneous voltage drops, and input power fluctuations.
Product Features
  • 01
    Rectifying modules are compact and lightweight and have more than 90% high efficiency
  • 02
    Hot-plugged modules for convenient maintenance in the event of a failure
  • 03
    Redundancy of power supplies in the rack for operational stability

Systems for internal-station

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Integrated Modular Impulse Track Circuit Device

It is the world's first digital impulse track circuit device, which reliably detects the presence or absence of a train and improves the stability

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Product Description
The integrated module type high voltage impulse track circuit device is an improved product of the existing high voltage impulse track circuit device and is a device that detects the presence or absence of train in one track circuit section.
Product Features
  • 01
    Redundancy system with stable train detection
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    Operational track-specific ID can be set, enabling remote check of track-specific status
  • 03
    A display is designed on the front of each module to easily check impulse values (transmission and reception), frequency, etc. without additional measuring equipment
  • 04
    Enables data from operating transmitting and receiving modules for each circuit to be transmitted to the parent device
  • 05
    Convenient maintenance

Systems for internal-station

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High Voltage Impulse Track Circuit Device

It is a device that detects the presence/absence of train points in the 25,000v AC subway section, providing stable train status information and providing flawless errors through the pack of track relays, voltage stabilizers, and transmission/receivers.

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Product Description
It is mainly used in the 25,000 [V] alternating current section, and the return current (electric vehicle current) of the tram line is returned to the substation through the rail, and the signal current is blocked at the impedance bond to execute the function of the track circuit.
Product Features
  • 01
    High signal facility protection effect even in case of track abnormality
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    Minimize malfunction
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    Energy saving effect, easy parts replacement
  • 04
    Transmiting the data from the transmitting and receiving modules currently in operation on each track to the central control device
  • 05
    5 components of voltage stabilizer, transmitter, receiver, track relay, and impulse rack

  1. Impulse Rack

  2. Track Relay (TR)

  3. Voltage Regulator (VR)

  4. Transmitter (TM)

  5. Reciever (RE)

Systems for internal-station

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Integrated power supply (smart switcher)

"Smart integrated power supply that integrates and supplies stable power to the station's signal machine room and on-site trackside signal facilities by application" "Smart integrated power supply that integrates and supplies stable power to the station's signal machine room and on-site trackside signal facilities by application"

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Product Description
Even in the event of a power outage, it consists of two relays of commercial main power and reserve power for normal train operation. A digital integrated power supply that integrates and monitors information status, alarm status, etc. for each module in real time through a screen display on the front panel of the power supply and transmits data through communication
Product Features

  1. Rectifier (SMPS) devices not required due to the use of DC bus lines in railway signals

  2. Integrated real-time monitoring system for self-monitoring → Reduction of maintenance cost of railway construction

  • 01
    AC input module

    DC output power by applying three-phase power input and rectifier.

    Improves the risk of automatic disconnection, instantaneous power outage, and live work

  • 02
    AC and DC Power Output : Installation of Bypass Breaker and Development of Modular Inverter

    Dispersion of transformers and breakers for each facility, resolving maintenance failures due to failures

    Improvement of power supply due to expansion of signal facilities

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    energy storage system

    Automatic battery management system for railway signals that improves "regular maintenance requirements" due to lack of functionality of existing monitoring systems

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    Integrated monitoring system

    A monitoring device that integrates information for each unit unit to solve the real-time motoring problem due to the lack of status information of the existing power supply.

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