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. 
  • LD 100

    Air choke with copper/layer winding

    LD 100
    • Rated current: 50 - 1000 A
    • Inductance: 0,2 - 8 mH

    Air chokes are particularly used where high inductive linearity is required. Due to their relatively simple mechanical structure, they are not only compact, but also very robust.


    With our expertise, the REO air chokes perform to the required standard, even in the most arduous conditions.



    • Frequency of the current: DC und AC

    • Tolerances: + 10 / - 10 %, + 5 / - 5 %

    • Taps: By default, no taps (available on request)

    • Insulation: F or H

    • Cooling method and cooling liquid according to IEC 60310: AN, AF or WF

    • Test voltage: up to 12kV 60s 50Hz, up to 25kV 1,2/50µs

    • Mounting: Suspended, vertical or horizontal

    • Mechanical strength, mechanical simulation (FEM): EN 12663

    • Shock - and vibration stress: IEC 61373 Kat. 1 Kl. B



    REO Mix & Match principle 


    With REO Mix & Match you can choose from a wide range of of options - combine the various options in order to always get the best product for your application.


    REO is able to offer different designs and winding techniques, a variety of conductor materials and structures. Depending on the specific requirements, we are able to produce an optimal solution by combining these parameters to provide the perfect solution.


    Optional



    • Layer winding/Disc winding

    • Aluminium, Copper or aluminium+copper

    • Protections: Paint coating, protective coating, housing or REO Xtreme

    • Cooling fan/unit

    • Sensors: Switch NO / NC, PT100, NTC, PTC



  • LD 220

    Air choke with aluminium-copper/disc winding

    LD 220
    • Rated current: 200 - 700 A
    • Inductance: 0,5 - 4 mH

    Air chokes are particularly used where high inductive linearity is required. Due to their relatively simple mechanical structure, they are not only compact, but also very robust.


    With our expertise, the REO air chokes perform to the required standard, even in the most arduous conditions.



    • Frequency of the current: DC und AC

    • Tolerances: + 10 / - 10 %, + 5 / - 5 %

    • Taps: By default, no taps (available on request)

    • Insulation: F or H

    • Cooling method and cooling liquid according to IEC 60310: AN, AF or WF

    • Test voltage: up to 12kV 60s 50Hz, up to 25kV 1,2/50µs

    • Mounting: Suspended, vertical or horizontal

    • Mechanical strength, mechanical simulation (FEM): EN 12663

    • Shock - and vibration stress: IEC 61373 Kat. 1 Kl. B



    REO Mix & Match principle 


    With REO Mix & Match you can choose from a wide range of of options - combine the various options in order to always get the best product for your application.


    REO is able to offer different designs and winding techniques, a variety of conductor materials and structures. Depending on the specific requirements, we are able to produce an optimal solution by combining these parameters to provide the perfect solution.


    Optional



    • Layer winding/Disc winding

    • Aluminium, Copper or aluminium+copper

    • Protections: Paint coating, protective coating, housing or REO Xtreme

    • Cooling fan/unit

    • Sensors: Switch NO / NC, PT100, NTC, PTC



  • NTT 400

    Onboard power supply transformer

    NTT 400
    • Rated power: 1000 - 30000 VA
    • Input voltage: 3x440 V

    The REO transformer NTT 400 is designed for on-board power supplies, which are fed by the auxiliary converter. He is used to adjust the voltage and for galvanic separation of pulse-width modulated DC link voltage and the consumers of the electrical system . A corresponding sinusoidal filter must be connected between the transformer and the inverter.
    The secondary-side load of the isolation transformer can be switchgears, rotating equipment , resistive loads or semiconductor power converters.The transformers are designed for the use in vehicles with AC or DC power (in inverter mode). This guarantees that REO transformers are optimally suited to your application. Our development methods emphasize maximum useful lifetime, cost/benefit optimization and safety.



    • Power. 1 - 30 kVA


    • Rated voltage


      Primary:
      Rated voltage: (Normal operation): 3x440 Veff 60 Hz
      Rated voltage: (external power supply): 3x400 Veff 50 Hz
      Rated voltage: (reduced operation): 3x345 Veff 47 Hz


      Secondary:
      Voltage: 3x230 Veff



    • Cooling: AN / AF

    • Protection rating: IP00

    • Insulation class: F/H

    • Test voltage: EN 50124 / EN 60310

    • Operating temperature:  -40°C ... +55°C (optional +75°C)

    • Humidity: max. 95%

    • Pollution: PD 3

    • Vibration resistance: Cat.1 class A/B acc. to EN61373

    • Voltages: 24 / 42 / 110 / 230 / 400 / 690 Volt (Optional)

    • Switching group: Optional


     


    Customer-specific components


    Onboard power supply transformer can be custom designed. Are you interested in this product? Please contact us!


    Besides the standard components for use in the converter, REO offers customerspecific products - as individual components or as a complete solution in a ontainer. The most important criteria in railway engineering are availability for operation and passenger safety. Here, REO offers customized solutions that we develop step by step in close cooperation with our client. 

  • NTT 400 D

    Onboard power supply transformer (Roof mounted)

    NTT 400 D
    • Rated power: 10000 - 30000 VA
    • Input voltage: 3x440 V

    The REO transformer NTT 400 D is designed for on-board power supplies, which are fed by the auxiliary converter.The transformer NTT 400 D is the complete, ready to use-unit with transformer, mounting frame and housing. It is used to adjust the voltage and for galvanic separation of pulse-width modulated DC link voltage and the consumers of the electrical system. A corresponding sinusoidal filter must be connected between the transformer and the inverter.


    The secondary-side load of the isolation transformer can be switchgears, rotating equipment , resistive loads or semiconductor power converters.The transformers are designed for the use in vehicles with AC or DC power (in inverter mode). This guarantees that REO transformers are optimally suited to your application. Our development methods emphasize maximum useful lifetime, cost/benefit optimization and safety.



    • Power. 10 - 30 kVA


    • Rated voltage


      Primary:
      Rated voltage: (Normal operation): 3x440 Veff 60 Hz
      Rated voltage: (external power supply): 3x400 Veff 50 Hz
      Rated voltage: (reduced operation): 3x345 Veff 47 Hz


      Secondary:
      Voltage: 3x230 Veff



    • Insulation class: F/H

    • Test voltage: EN 50124 / EN 60310

    • Operating temperature:  -40°C ... +55°C (optional +75°C)

    • Humidity: max. 95%

    • Pollution: PD 4

    • Vibration resistance: Cat.1 class A/B acc. to EN61373

    • Voltages: 24 / 42 / 110 / 230 / 400 / 690 Volt (Optional)

    • Switching group: Optional


     


    Customer-specific components


    Onboard power supply transformer can be custom designed. Are you interested in this product? Please contact us!


    Besides the standard components for use in the converter, REO offers customerspecific products - as individual components or as a complete solution in a ontainer. The most important criteria in railway engineering are availability for operation and passenger safety. Here, REO offers customized solutions that we develop step by step in close cooperation with our client. 

  • NTT 400 U

    Onboard power supply transformer (Underfloor housing)

    NTT 400 U
    • Rated power: 10000 - 30000 VA
    • Input voltage: 3x440 V

    The REO transformer NTT 400 U is designed for on-board power supplies, which are fed by the auxiliary converter.The transformer NTT 400 U is the complete, ready to use-unit with transformer and housing. It is used to adjust the voltage and for galvanic separation of pulse-width modulated DC link voltage and the consumers of the electrical system. A corresponding sinusoidal filter must be connected between the transformer and the inverter.


    The secondary-side load of the isolation transformer can be switchgears, rotating equipment , resistive loads or semiconductor power converters.The transformers are designed for the use in vehicles with AC or DC power (in inverter mode). This guarantees that REO transformers are optimally suited to your application. Our development methods emphasize maximum useful lifetime, cost/benefit optimization and safety.



    • Power. 10 - 30 kVA


    • Rated voltage


      Primary:
      Rated voltage: (Normal operation): 3x440 Veff 60 Hz
      Rated voltage: (external power supply): 3x400 Veff 50 Hz
      Rated voltage: (reduced operation): 3x345 Veff 47 Hz


      Secondary:
      Voltage: 3x230 Veff



    • Insulation class: F/H

    • Test voltage: EN 50124 / EN 60310

    • Operating temperature:  -40°C ... +55°C (optional +75°C)

    • Humidity: max. 95%

    • Pollution: PD 4

    • Vibration resistance: Cat.1 class A/B acc. to EN61373

    • Voltages: 24 / 42 / 110 / 230 / 400 / 690 Volt (Optional)

    • Switching group: Optional


     


    Customer-specific components


    Onboard power supply transformer can be custom designed. Are you interested in this product? Please contact us!


    Besides the standard components for use in the converter, REO offers customerspecific products - as individual components or as a complete solution in a ontainer. The most important criteria in railway engineering are availability for operation and passenger safety. Here, REO offers customized solutions that we develop step by step in close cooperation with our client. 

  • NTT AMCC 400

    REO TSS choke with amorphous core

    NTT AMCC 400

    As a passive inductive component in power supplies and in power electronics, the buck-converter choke is used for attenuating undesirable frequencies or for saving and storing energy.


    The term buck-converter choke indicates the complete ready-for-use unit containing the choke, air cooling, mounting and connections. The chokes are available with different cores, which enables individual selection depending on the requirement of the application. In addition to iron-based cores, chokes with cores of amorphous alloy are becoming more common, in the form of toroidal cores, cut strip-wound cores or special custom solutions.


    The use of amorphous materials offers an exceptional combination of high satur­ation flux density (1.56 T) and a high permeability. In addition to the high temperature class, further features of amorphous alloy include low hysteresis and eddy-current losses, suitability for the medium-frequency range (<20 kHz) and use for high powers up to 500 kVA.



    • Type of choke: Up/Buck converter choke with iron core

    • Voltage of the system: 500 – 1100 V

    • Max. permissible tolerances: ( -10 % / +10 % )

    • Linearity: min. 0.2 mH @ 230 Aeff

    • Harmonic currents constantly / Superimposed Harmonics: 60 Ass @ 19 kHz

    • Insulation class: H

    • Cooling: AF

    • Protaction rating: IP65/66

    • Rated voltage for insulation: 1200 Vdc

    • Test voltage: 3.5 kV (50 Hz, 60 s)



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    Systems or separate components in railway technology
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