TransportationConverter Solutions

TransportationConverter Solutions

SAFE AND STANDARDISED PRODUCTS FOR RAILWAY ENGINEERING

The safety of passengers and the compliance of railway standards is of the utmost importance in this market. Most applications demand that components must be adapted to the local environmental and operating conditions. High quality standards and continuous developments ensure that that REO is a reliable partner within this sector.

To guarantee compliance with railway norms, standards and the classification of Ingress Protection the following methods are used:

  • In-house testing laboratories
  • Shock and vibration tests
  • Cooperation only with selected suppliers
  • FEM analysis for the simulation of environmental influences


For railway technology REO offers inter alia:

  • NTT BW – Braking, smoothing and filter resistors
  • NTT – Mains chokes, motor chokes, interference chokes, absorption circuit choke, EMC chokes, dv/dt chokes, AC/DC chokes
  • RFI filter, sinusoidal filter, harmonic filter
  • NUT – inverter transformers AC transformers, power transformer, HF transformer, current transformer, special components for energy generation
  • NPT – test chokes for load test of frequency converters
  • REOLAB mobil – mobile power supply for the railway workshop
  • REOLAB – test devices for duration and function tests

All components for the railway technology - from transformers and chokes up to filters - are developed as a standard design or in accordance with the specific requirements of our customers. Without this specific, essential requirements, no product can operate:

  • Safety: to ensure that the safety and comfort of passengers are not impaired, every component used in a train must meet the current norms and standards. Own tests and accredited testing laboratories prove the safety of our components. 
  • Weight: Intelligent methods in materials selection and FEM-calculation mean that REO components are of particularly low weight. 
  • Space : The optimal use of space, and compliance with specified mechanical and electrical requirements, form the basis of our development work. 
  • Costs: With the latest software, simulation and testing techniques, we ensure that the necessary development work is already optimally used in advance. 
  • Series IE modular

    closed-loop current transformers

    Series IE modular
    • Primary rated current: 500 - 2500 A
    • Umgebungstemperatur: -25... +70 °C
    • Frequency range: 50... -400 Hz

    In the case of bushing-type current transformers, the customer’s primary wire is pushed
    through the current transformer opening in the housing. The push-through opening depends
    on the size of the primary current.
    Wound primary type current transformers have a primary winding and a secondary winding.
    Both windings are applied on the closed toroidal core and are isolated from each other by
    insulation. This principle applies mainly where primary currents are small. Low-voltage current
    transformers for the proportional transformation of large currents to directly measurable
    smaller current values.

    According to: 61869-2
    Primary rated current: 500, 1000, 2500 A
    Frequency range: 50 - 400 Hz

    Applications:



    • Industry

    • Renewable energy sources

    • Railway engineering

    • Energy, automation and building technology

  • Series IN-B

    Bushing-type and bar-type current transformers

    Series IN-B
    • Primary rated current: 600 A
    • Max. Primärnennstrom: 720
    • Sekundärstrom: 300 A

    For the high demands of railway and industrial engineering at higher frequencies up to 50kHz. High-quality nanocrystalline core materials guarantee the greatest degree of transmission quality and low losses.


    Exclusive use of UL-listed materials, fully sealed with UL94-V0 material. Current transformers for demanding applications, such as in the railway sector and general transportation sectors. Robust housing construction with reliable securing options for vertical or horizontal mounting.



    • According to: EN61373

    • Primary rated current: 600 A

    • Frequency range: 50 - 50.000 Hz



    Application area



    • Industry

    • Railway engineering



  • Series WKO-2C-B

    Double core technology closed-loop current transformers for railway engineering

    Series WKO-2C-B
    • Primary rated current: 500 - 2000 A
    • Messbereich: 0...3000 A
    • Frequency range: 120000 Hz

    The current transducer WKO-2C-B with hall effect elements and double-core  technology has an extended frequency response up to 140 kHz and an accurate phase response. The WKO-2C-B guarantees an increased current measurement accuracy better than 0.3% in the whole frequency range: DC to 140 kHz.


    A completely redesigned electronics ensures that the new C/L current transducer has better drift compensation and an extended temperature range from -40°C to 85°C.


    Modular design


    The current transformer has a modular design which allows a variety of mounting options. The cost-effective basic model consists of a housing with screw terminals, bushing for cable and holes for fixing. Optionally, the transducers are available with mounting kit for busbars, molex connectors and feets for horizontal or vertical mounting.


    According to: 



    • EN 50178:1997

    • UL 94-V0

    • EN 50178            

    • EN 50155:2007

    • IEC 61373:2010


    Typical applications



    • Railway engineering

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