Combined Differential and Distance Protection


SIPROTEC 5 base module with large display

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    The combined line differential and distance protection SIPROTEC 7SL87 is part of the new SIPROTEC 5 series of modular, flexible and intelligent digital field devices.
    With its modularity and flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SL87 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems.

    Main function:

    Differential and Distance Protection


    1- and 3-pole, min. tripping time 9 ms

    Inputs and outputs:

    12 predefined standard variants with 4/4 or 8/8 current/voltage transformers, 5 to 31 binary inputs,
    8 to 46 binary outputs

    Hardware flexibility:

    Flexibly adjustable I/O quantity structure within the scope of the SIPROTEC 5 modular system

    Width of housing:

    1/3 x 19'' to 2/1 x 19''

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