Two-winding transformer differential protection


SIPROTEC 5 base module with large display

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    The transformer differential protection SIPROTEC 7UT82 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It is especially designed 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 protected downstream objects (such as cable or lines).

    The device supports all SIPROTEC 5 system characteristics. It enables future oriented system solutions with high investment 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 functions

    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

    Housing width:

    1/3 × 19 inches

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