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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    Non-insulated AF(Audio Frequency) track circuit Device
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    Automatic Block system Unit
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    ) Electric Point Machine (NS-AM type/High Reliability)
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    Adherence Detector (Single System/Double System)
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    Railroad Crossing Control Unit
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    Impedance bond
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    Matching Transformer
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    Various Relays

Systems for Field Use

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Non-insulated AF(Audio Frequency) track circuit Device

check Quickly the rail for train presence or absence and transmit digitally information to each train for increased stability in train operation

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Product Description
Non-insulated audible frequency track circuit devices are designed for alternating current or direct current train sections where high interference (mainly from harmonics in tram line power) exists.
Product Features
  • 01
    Easy to prevent safety accidents by detecting the presence or absence of trains
  • 02
    Send the train's instruction speed and operation information to the train in a digital information transmission method

Systems for Field Use

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Automatic Block system Unit

Automatically control the automatic stop of the train in the block section to improve stability of the train operation of the train.

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Product Description
The automatic Block system Unit is a device that automatically controls signal display according to the progress of the block section train between stations.
Product Features
  • 01
    Minimize contact failure with small, stable, non-polar relay
  • 02
    It is modularized for each purpose, so it can be replaced by one-on-one with existing facilities for easy maintenance,
  • 03
    System's control relay and transmit and receive card power are configured in two relays to improve reliability

Systems for Field Use

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Electric Point Machine (NS-AM type/High Reliability)\

Move the tracks so that the train can move in the right direction to ensure a safe route.

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Product Description
An Electric Point Machine is a branching switch that changes the running track of a railway vehicle, and it is a device that moves the tongue rail (moving rail) from side to side to ensure the correct operating route of the railway vehicle.
Product Features
  • 01
    Controller insertion for easy maintenance
  • 02
    Reliability for stability is achieved by applying a conventional clutch that is sensitive to temperature changes as a magnetic clutch.
  • 03
    Improved security with anti-surface forced lock

Systems for Field Use

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Adherence Detector (Single System/Double System)

It detects the safety of the track and delivers it to the track changer to ensure the stability of the train operation.

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Product Description
Adherence Detector is a device that detects the close-up state and the cut-off state of the tip of the branch by combining it with the line changer.
Product Features
  • 01
    A control unit is installed inside the Adherence Detector to control the sensor's power supply, relay and motor power cut-off circuits
  • 02
    A method using a microswitch and a sensor method that removes mechanical contact and detects objects without contact

Systems for Field Use

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Railroad Crossing Control Unit

Ensure customer stability by automatically controlling safety equipment (electric breaker, alarm lamp, horn speaker, etc.) when approaching and passing trains.

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Product Description
Railroad crossing control unit is a device that is installed at a railroad crossing to control electric vehicle terminals, warning lights, horn speakers, obstruction detection devices, etc.
Product Features
  • 01
    Consists of alarm control unit, relay unit, power supply unit, etc
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    Accept double-track Bi-directional processing and obstruction detection
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    Enables interfaces with external systems

Systems for Field Use

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Impedance bond

Ensure stable operation of trains by ensuring stable flow of current in rail tracks.

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Product Description
It is a device installed at the boundary of the track circuit of the subway section to send the return current of the tram line to the next track circuit section and allow the signal current to flow only within one track circuit.
Product Features
  • 01
    Causes the return current of the tram line to flow
  • 02
    Enables the Track circuit to flow signal current
  • 03
    Adjust the transmit and receive impulse voltages

Systems for Field Use

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Matching Transformer

A product that matches mutual impedance values by adjusting transformer transformations by matching the impedance of the antenna and the supply line.

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Product Description
Transformers (transformers) used in rails for impedance matching
Product Features
  • Matching impedance (resistance) between cable and rail between transmitter and receiver of track circuit

Systems for Field Use

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Various Relays

Move the tracks so that the train can move in the right direction to ensure a safe route.

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주요제품유형
  • 01
    Bias Relay: operates only when a voltage of constant polarity is applied to the input terminal
  • 02
    AF Track Relay: A device that opens or closes an electrical circuit according to various input signals such as temperature and light, as well as electrical signals such as voltage, current, power, and frequency
  • 03
    Non-polar/polar wire tuning Relay,: If the receiving module input signal exceeds a certain value, the relay output voltage is generated and operated
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    a magnetic maintenance Relay
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    small/large seesaw Relay
  • 06
    Mid-Load Relay
Product Features
  • 01
    Relays are devices that converts electrical input into mechanical work and drives it to form a circuit, and gradually opens and closes using the suction force of the iron piece by an electromagnet
  • 02
    Railway signal relays are mainly used for circuit conditions of electrical interlocking devices or for interfaces with electronic interlocking equipment field facilities

  1. Non-polarized Signal Relay

  2. Polarized Signal Relay

  3. Latching Signal Relay

  4. Large-Scale See Saw Relay

  5. Small-Scale See Saw Relay

  6. Centralized Load Relay

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