Passive Current transformers

Low space requirements combined with outstanding performance

REO current transformers distinguish themselves primarily due to their low space requirements, excellent linearity, short response times and their low iron und hysteresis losses.

The current transformer series are available in a range up to 150 kHz and, as a result of the testing that has previously been performed and is carried out in the manufacturing process, whether that is vacuum casting, partial discharge measurement or high-voltage testing, achieve a high level of reliability and are perfectly adapted to the respective place of use.

  • Series IN

    Instrument transformers (PIN version)

    Series IN
    • Primary rated current: 1 - 50 A

    The growing development and spread of electronic devices with high working frequencies requires the use of current transformers with an extended frequency range.


    This demand can be met with specially selected materials in conjunction with optimized design.



    • According to: EN 60044-1

    • Primary rated current: 1 - 50 A

    • Frequency range: 50 - 50.000 Hz



    Application area



    • Industry

    • Renewable energy sources

    • Railway engineering

    • Metrology and testing techniques

    • 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 IN-D

    Differential current transformer

    Series IN-D
    • Primary rated current: 2 - 50 A

    A differential current transformer permits the measurement of differential current in single-phase or three-phase supply cables or in individual lines. Both current-carrying conductors (outward conductor and return conductor) are led through the current opening of the current transformer. The current measurement is performed by comparing the two conductors.


    Any difference is displayed at the output of the differential current transformer. The use of highly permeable materials permits a typical current deviation of 10 mA upwards. The wide opening allows the supply lines, with the exception of the earthing conductor, to be led through directly. High sensitivity to current enables measurement in several stages:



    • stage 1: Notice of a malfunction

    • stage 2: Alarm

    • stage 3: Switching off


     


    Application area



    • Industry

    • Renewable energy sources

    • Metrology and testing techniques

    • Energy, automation and building technology



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