Two-winding transformer differential protection


SIPROTEC 5 base module with large display

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    The SIPROTEC 7UT82 transformer differential protection has been designed specifically for the protection of two-winding transformers. It is the main protection for the transformer and contains many other protection and monitoring functions. The additional protection functions can also be used as backup protection for subsequent protected objects (such as cables or lines). In this process, you are also supported by the modular expandability of the hardware. With its modular structure, flexi- bility and the powerful DIGSI 5 engineering tool, SIPROTEC 7UT82 offers future-oriented system solutions with high invest- ment security and low operating costs.

    Main function:

    1 differential protection function (standard or auto transformer) with additional stabilization; up to 2 restricted ground-fault protection func- tions

    Usable measuring

    2 x 3-phase current measuring points, 2 x 1- phase current measuring points

    Inputs and outputs:

    1 predefined standard variant with 8 current transformers, 7 binary inputs, 7 binary outputs

    Hardware flexibility:

    The 1/3 base module is available with the IO103 module; it is not possible to add 1/6 expansion modules, available with large and small display

    Width of housing:

    1/3 × 19 inches

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