DC-Chokes

DC-Chokes

REO air chokes for particularly high LINEARITY

Air chokes are used when a particularly high linearity is required. By its relatively simple structure, they are not only compact, but also very stable.

- No saturation effects

- High linearity L (i)

- Very good mechanical resistance

- No hysteresis

  • 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)



  • NTT UI114-50

    REO TSS choke with iron core

    NTT UI114-50

    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)



  1. Page:
  2. 1
  3. 2

Downloads

  • Download
    Air chokes Product catalogue
    pdf

    Air chokes Product catalogue

    Product catalogue REO air chokes
    Download
  • Download
    Components for wind power generation Catalouge
    pdf

    Components for wind power generation Catalouge

    REO components for wind power generation Safe application for onshore and offshore installations
    Download
  • Download
    Chokes overview
    pdf

    Chokes overview

    The product range at a glanee
    Download
  • Download
    Liquid-cooled components
    pdf

    Liquid-cooled components

    Liquid-cooled components The product range at a glance
    Download
  • Download
    REO chokes with high protection ratings
    pdf

    REO chokes with high protection ratings

    REO chokes with high protection ratings Fully encapsulated REO chokes
    Download